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| -rw-r--r-- | readme.txt | 2661 |
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diff --git a/readme.txt b/readme.txt new file mode 100644 index 000000000..89b08a66a --- /dev/null +++ b/readme.txt @@ -0,0 +1,2661 @@ +*****************************************************************************
+*** Files Organization ***
+*****************************************************************************
+
+--{root} - ChibiOS/RT directory.
+ +--readme.txt - This file.
+ +--documentation.html - Shortcut to the web documentation page.
+ +--todo.txt - Current plan (development/unstable versions only).
+ +--license.txt - GPL license text.
+ +--exception.txt - GPL exception text (stable releases only).
+ +--boards/ - Board support files.
+ +--demos/ - Demo projects.
+ +--docs/ - Documentation.
+ | +--html/ - Local HTML documentation (after rebuild).
+ | +--reports/ - Test reports.
+ | +--src/ - Documentation source files (required for rebuild).
+ | +--rsc/ - Documentation resource files (required for rebuild).
+ | +--Doxyfile - Doxygen project file (required for rebuild).
+ | +--index.html - Local documentation access (after rebuild).
+ +--ext/ - External libraries, not part of ChibiOS/RT.
+ +--os/ - ChibiOS/RT files.
+ | +--hal/ - Hardware Abstraction Layer.
+ | | +--include/ - HAL high level headers.
+ | | +--src/ - HAL high level source.
+ | | +--platforms/ - HAL low level drivers implementations.
+ | | | +--AT91SAM7/ - Drivers for AT91SAM7 platform.
+ | | | +--AVR/ - Drivers for AVR platform.
+ | | | +--LPC11Uxx/ - Drivers for LPC11Uxx platform.
+ | | | +--LPC11xx/ - Drivers for LPC11xx platform.
+ | | | +--LPC13xx/ - Drivers for LPC13xx platform.
+ | | | +--LPC214x/ - Drivers for LPC214x platform.
+ | | | +--LPC8xx/ - Drivers for LPC8xx platform.
+ | | | +--MSP430/ - Drivers for MSP430 platform.
+ | | | +--SPC5xx/ - Drivers for all SPC5xx platform (common).
+ | | | +--SPC560BCxx/ - Drivers for SPC560BCxx platform.
+ | | | +--SPC560Pxx/ - Drivers for SPC560Pxx platform.
+ | | | +--SPC563Mxx/ - Drivers for SPC563Mxx platform.
+ | | | +--SPC564Axx/ - Drivers for SPC564Axx platform.
+ | | | +--SPC5ELxx/ - Drivers for SPC56ELxx platform.
+ | | | +--STM32/ - Drivers for STM32 platform (common).
+ | | | +--STM32F0xx/ - Drivers for STM32F0xx platform.
+ | | | +--STM32F1xx/ - Drivers for STM32F1xx platform.
+ | | | +--STM32F30x/ - Drivers for STM32F30x platform.
+ | | | +--STM32F37x/ - Drivers for STM32F37x platform.
+ | | | +--STM32F4xx/ - Drivers for STM32F4xx/STM32F2xx platforms.
+ | | | +--STM32L1xx/ - Drivers for STM32L1xx platform.
+ | | | +--STM8L/ - Drivers for STM8L platform.
+ | | | +--STM8S/ - Drivers for STM8S platform.
+ | | | +--Posix/ - Drivers for x86 Linux/OSX simulator platform.
+ | | | +--Win32/ - Drivers for x86 Win32 simulator platform.
+ | | +--templates/ - Driver template files.
+ | | +--meta/ - Driver meta templates.
+ | +--ports/ - Port files for the various architectures.
+ | | +--GCC/ - Ports for the GCC compiler.
+ | | | +--ARM/ - Port files for ARM7 and ARM9 architectures.
+ | | | +--ARMCMx/ - Port files for ARMCMx architectures (ARMv6/7-M).
+ | | | +--PPC/ - Port files for PowerPC architecture.
+ | | | +--AVR/ - Port files for AVR architecture.
+ | | | +--MSP430/ - Port files for MSP430 architecture.
+ | | | +--SIMIA32/ - Port files for SIMIA32 simulator architecture.
+ | | +--IAR/ - Ports for the IAR compiler.
+ | | | +--ARMCMx/ - Port files for ARMCMx architectures (ARMv6/7-M).
+ | | | +--STM8/ - Port files for STM8 architecture.
+ | | +--RVCT/ - Ports for the Keil RVCT compiler.
+ | | | +--ARMCMx/ - Port files for ARMCMx architectures (ARMv6/7-M).
+ | | +--cosmic/ - Ports for the Cosmic compiler.
+ | | | +--STM8/ - Port files for STM8 architecture.
+ | | +--RC/ - Ports for the Raisonance compiler.
+ | | +--STM8/ - Port files for STM8 architecture.
+ | +--kernel/ - Kernel portable files.
+ | | +--include/ - Kernel headers.
+ | | +--src/ - Kernel source.
+ | | +--templates/ - Kernel port template files.
+ | +--various/ - Various portable support files.
+ +--test/ - Kernel test suite source code.
+ | +--coverage/ - Code coverage project.
+ +--testhal/ - HAL integration test demos.
+ | +--LPC11xx/ - LPC11xx HAL demos.
+ | +--LPC13xx/ - LPC11xx HAL demos.
+ | +--STM32F1xx/ - STM32F1xx HAL demos.
+ | +--STM32F4xx/ - STM32F4xx HAL demos (valid for STM32F2xx too).
+ | +--STM32L1xx/ - STM32L1xx HAL demos.
+ | +--STM8S/ - STM8S HAL demos.
+ +--tools - Various tools.
+ +--eclipse - Eclipse enhancements.
+
+*****************************************************************************
+*** Releases ***
+*****************************************************************************
+
+*** 2.7.0 ***
+- FIX: Fixed STM32 Serial (v2) driver invalid CR registers size (bug #416)
+ (backported to 2.6.0).
+- FIX: Fixed MS2ST() and US2ST() macros error (bug #415)(backported to 2.6.0,
+ 2.4.4, 2.2.10, NilRTOS).
+- NEW: SPI driver for SPC560Pxx, SPC563Mxx, SPC564Axx, SPC56ELAxx, SPC560Dxx.
+- NEW: Support for SPC560Dxx devices.
+- NEW: DMA-MUX support for SPC5xx devices.
+
+*** 2.5.2 ***
+- FIX: Fixed lwipthread.h should explicitly include lwip/opts.h (bug #414).
+- FIX: Fixed STM32_PLLI2SCLKOUT miscalculated (bug #413)(backported to 2.4.4).
+- FIX: Fixed wrong RTC vector name in STM32F1/F4/L1 EXT drivers (bug #412).
+- FIX: Fixed fill character error in chprintf (bug #411).
+- FIX: Fixed wrong STM32 USBv1 driver behavior (bug #410).
+- FIX: Fixed STM32 wrong peripherals reset procedure (bug #409)(backported
+ to 2.4.4).
+- FIX: Fixed STM32 SPIv2 polled exchange (bug #372).
+- FIX: Fixed wrong macro in PWM driver (bug #407)(backported to 2.4.4).
+- FIX: Fixed USB driver possible deadlock under certain configurations (bug
+ #406)(backported to 2.4.4).
+- FIX: Fixed USB driver cannot be stopped (bug #405)(backported to 2.4.4).
+- FIX: Fixed several spelling errors (bug #404).
+- FIX: Fixed serial port in STM32F3 discovery test case (bug #402).
+- FIX: Fixed add %i to chprintf (bug #401).
+- FIX: Fixed STM32F051 various (bug #400).
+- FIX: Fixed STM32F103 HSI configuration (bug #399).
+- FIX: Fixed patch to allow simulator to be restarted quicker (bug #398).
+- FIX: Fixed blkDisconnect macro typo (bug #397).
+- FIX: Fixed STM32 SPI (V2) driver hangs (bug 3608241).
+- FIX: Fixed fixed I2C malfunction after fixing bug 3607518 (bug 3607549)
+ (backported to 2.4.4).
+- FIX: Fixed spurious interrupt disabling an STM32 DMA stream (bug 3607518)
+ (backported to 2.4.4).
+- FIX: Fixed start of any ADC disables VREF and VBAT (bug 3607467)
+ (backported to 2.4.4).
+- FIX: Fixed surprising non-CRLF lines in source (bug 3607380).
+- FIX: Fixed no entry point defined at link time (bug 3607319).
+- FIX: Fixed sdc_lld_collect_errors does not collect errors (bug 3606743).
+- FIX: Fixed STM32 CAN broadcast typo (bug 3606675).
+- FIX: Fixed STM32 CAN mailbox receive for second fifo (bug 3606673).
+- FIX: Fixed CAN_USE_SLEEP_MODE compilation problem (bug 3606616)(backported
+ to 2.4.4)(backported to 2.2.10).
+- FIX: Fixed missing HSE bypass option for STM32F103 (bug 3606274).
+- FIX: Fixed misplaced brace in icu_lld.c (bug 3605832)(backported to 2.4.4).
+- FIX: Fixed errors in MMC_SPI driver state machine (bug 3605794).
+- FIX: Fixed deadlock in Serial_USB driver (bug 3605793).
+- FIX: Fixed compile Error OLIMEX_SAM7_EX256/board.c (bug 3605058).
+- FIX: Fixed bug prevents calling adcStartConversionI() within ISR (bug
+ 3605053)(backported to 2.4.4).
+- FIX: Fixed typo in platforms/STM32/can_lld.c (bug 3604657)(backported
+ to 2.4.4).
+- FIX: Added board files and demo for "WaveShare Open STM32F4 207I-C / 407I-C".
+ Added ULPI support to the STM32 USB (OTG-HS) driver.
+ Contributed by Dave Camarillo (bug 3603362).
+- FIX: Fixed adcSTM32EnableTSVREFE must be called AFTER adcStart (bug
+ 3602950).
+- FIX: Fixed duplicated code in hal_lld.h (STM32F4xx) (bug 3602544)
+ (backported to 2.4.4).
+- FIX: Fixed #define typo in usb_lld.h (OTGv1) (bug 3602306).
+- FIX: Fixed STM32F0 RCC enable/disable/reset functions for CRC and WWDG
+ (bug 3602150).
+- FIX: Fixed missing parenthesis in use of macro arguments (bug 3601638).
+- FIX: Fixed compile errors in Posix-GCC demo (bug 3601621)(backported
+ to 2.4.4).
+- FIX: Fixed state checker error in MSP430 port (bug 3601460)(backported
+ to 2.4.4).
+- FIX: Fixed wrong assertion in UART driver (bug 3600789)(backported
+ to 2.4.4).
+- FIX: Fixed small bug in shell argument parsing code in shell_thread (bug
+ 3599328)(backported to 2.4.4).
+- FIX: Fixed wrong condition in checksum offload of STM32 MAC driver (bug
+ 3598720)(backported to 2.4.4).
+- FIX: Fixed error in STM32 MAC driver degrades performance (bug 3598719)
+ (backported to 2.4.4).
+- FIX: Fixed warning in STM32 ICU driver using IAR compiler (bug 3598177)
+ (backported to 2.4.3).
+- FIX: Fixed wrong SPI path in platform_f105_f107.mk (bug 3598151).
+- FIX: Fixed PHY powerdown issues not fixed (bug 3596911).
+- NEW: Added new pwmIsChannelEnabledI() API to the PWM driver, implemented
+ in the STM32 driver.
+- NEW: Added support for timers 6, 7, 9, 11, 12, 14 to the STM32 GPT driver.
+- NEW: Added support for timer 9 to the STM32 PWM and ICU drivers.
+- NEW: Relicensed parts of the distribution tree under the Apache 2.0
+ license in order to make specific parts of the code more accessible
+ to the open source community and adopters.
+- NEW: Added ADC(EQADC), HAL, ICU, PAL, PWM, Serial drivers for SPC5xx
+ platforms, tests to be added on the various sub-families.
+- NEW: Added support for SPC56ELxx, SPC560BCxx, SPC560Pxx, SPC560Mxx and
+ SPC564Axx platforms.
+- NEW: Added ADC/SDADC driver for the STM32F37x family.
+- NEW: Added support for the STM32F37x family.
+- NEW: Now the general documentation includes data extracted from the low
+ level driver templates. Per-platform/architecture documents are no more
+ required and will be replaced with technical articles and examples for
+ each specific driver.
+- NEW: Added a build test project for low level device driver templates.
+- NEW: Enhanced CAN driver model, support for mailboxes has been added. STM32
+ driver implementation upgraded.
+- NEW: Added ADC and PWM drivers for the AT91SAM7 platform, both donated
+ by Andrew Hannam.
+- NEW: Added kernel support for the SAM4L, an Atmel Studio 6 demo for the
+ SAM4L-EK board has been added.
+- NEW: Added an abstract file system interface written in C++, no
+ implementations yet.
+ TODO: Create a descendant interface for hierarchical file systems.
+ TODO: Create a FatFS wrapper implementing the interface and using a server
+ thread for synchronization.
+ TODO: Create an implementation over a read-only file system in code space.
+- NEW: CAN2 support for STM32 added.
+- NEW: Updated STM32L1xx header to the latest version.
+- NEW: Added an option to lwipthread to change the link status poll interval.
+- NEW: Added new C++ demo for the STM32F4-Discovery.
+- NEW: Updated C++ wrapper with a much more logical classes structure.
+ TODO: Opdate older C++ demos.
+- NEW: ADC driver implementation for the STM32F3xx, the driver supports also
+ the dual-ADC mode allowing for a very high combined bandwidth.
+- NEW: Added zero-copy capability to the STM32 MAC driver (experimental and
+ not tested yet).
+- NEW: Added an optional zero-copy mode API to the MAC driver model.
+- NEW: Added EXT driver to the STM32F3xx platform.
+- NEW: Improved the STM32 EXT driver to support more than 32 channels.
+- NEW: Added support for Olimex board STM32-LCD.
+- CHANGE: Removed dependency between crt0.c (GCC-ARMCMx) and the kernel
+ header ch.h.
+
+*** 2.5.1 ***
+- FIX: Fixed typo in chOQGetEmptyI() macro (bug 3595910)(backported to 2.2.10
+ and 2.4.3).
+- FIX: Fixed possible false detect of loaded prescaler in RTCv1 driver (bug
+ 3595489)(backported to 2.4.3).
+- FIX: Fixed unneeded RTC initialization when HAL_USE_RTC disabled
+ (bug 3594620)(backported to 2.4.3).
+- FIX: Fixed compilation issue with HAL_USE_RTC disabled (bug 3594083)
+ (backported to 2.4.3).
+- FIX: Fixed wasting of BKP registers in RTCv1 driver (bug 3594005)(backported
+ to 2.4.3).
+- FIX: Fixed potential problem with RTC_CRL_RSF bit (bug 3593972)(backported
+ to 2.4.3).
+- FIX: Fixed STM32F1x rtc_lld_init not functional (bug 3592817)(backported
+ to 2.4.3).
+- FIX: Fixed DMA reconfiguration problem in STM32 SPI driver (bug 3592809)
+ (backported to 2.4.3).
+- FIX: Fixed STM32 UART driver redundant initialization (bug 3592764)
+ (backported to 2.4.3).
+- FIX: Fixed wrong stack initializations in GCC STM32L1xx port files (bug
+ 3591321)(backported to 2.4.3).
+- FIX: Fixed different redefinition for __main_stack_end__ symbol (bug
+ 3591317)(backported to 2.4.3).
+- FIX: Fixed errors in STM32F0xx UART driver (bug 3589412)(backported
+ to 2.4.3).
+- FIX: Fixed MSP430 port_switch code for MSPGCC issue (bug 3587633)(backported
+ to 2.4.3).
+- FIX: Fixed workaround for errata in STM32F4-A devices (bug 3586425)
+ (backported to 2.4.3).
+- FIX: Fixed error in palWritePad() macro (bug 3586230)(backported to 2.2.10
+ and 2.4.3).
+- FIX: Fixed missing ; in testmbox.c (bug 3585979)(backported to 2.4.3).
+- FIX: Fixed STM32F4xx: Wrong CAN1 SCE interrupt number definition (bug
+ 3581571).
+- FIX: Fixed STM32_P407: implement mmc_lld_is_card_inserted (bug 3581929)
+ (backported to 2.4.3).
+- FIX: Fixed double chSysInit() call in MSP430F1611 demo (bug 3581304)
+ (backported to 2.2.10 and 2.4.3).
+- FIX: Fixed patch for various demos (bug 3579734).
+- FIX: Fixed bug in abstract file interface (bug 3579660)(backported to
+ 2.2.10 and 2.4.3).
+- FIX: Fixed wrong type for UART config registers (bug 3579434).
+- FIX: Fixed various typos and wrong limits in the STM32F4/F2 HAL driver
+ (bug 3578944)(backported to 2.4.3).
+- FIX: Fixed ARM CMx crt0.c fails at low optimization levels (bug 3578927)
+ (backported to 2.4.3).
+- FIX: Fixed compilation issue in chregistry.c (bug 3576776).
+- FIX: Fixed compilation issue in syscalls.c (bug 3576771)(backported
+ to 2.4.3).
+- FIX: Fixed Typos in STM32F0xx EXT driver (bug 3576193).
+- FIX: Fixed STM32F10X_CL: Wrong CAN1 interrupt number definitions (bug
+ 3575766).
+- FIX: Fixed superfluous pack #defines cause nasty warning (bug 3575662)
+ (backported to 2.4.3).
+- FIX: Fixed mac.c won't compile due to misplaced declarations (bug 3575657)
+ (backported to 2.4.3).
+- FIX: Fixed STM32F4 ADC prescaler incorrectly initialized (bug 3575297)
+ (backported to 2.4.3).
+- FIX: Fixed RCC_APB2ENR_IOPEEN undeclared on STM32F10X_LD_VL devices (bug
+ 3575098)(backported to 2.4.3).
+- FIX: Fixed misplaced declarations in lwip_bindings sys_arch.c (bug 3571053)
+ (backported to 2.4.3).
+- FIX: Fixed double definition of sd1fel and sd2fel breaks Posix simulator
+ (bug 3570532).
+- FIX: Fixed Ethernet PHY power down scheme prevents using LAN8720A (bug
+ 3570335).
+- FIX: Fixed FatFS won't compile with _FS_REENTRANT enabled (bug 3570135)
+ (backported to 2.4.3).
+- FIX: Fixed mmc_spi.c won't compile due to misplaced declaration (bug
+ 3570035)(backported to 2.4.3).
+- FIX: Fixed problem in STM32F1xx USB driver after revision 4598 (bug 3569374).
+- FIX: Fixed GPIO glitch during PAL initialization (bug 3569347)(backported
+ to 2.4.3).
+- FIX: Fixed FatFS timestamp incorrect (bug 3568626).
+- FIX: Fixed Data available event not generated in serial_usb driver (bug
+ 3567992).
+- FIX: Fixed STM32F1x rtc_lld_init glitches rtc on hard reset (bug 3567597)
+ (backported to 2.4.3).
+- FIX: Fixed STM8L, cosmic compiler: c_lreg not saved (bug 3566342)(backported
+ to 2.2.10 and 2.4.3).
+- NEW: Initial support for STM32F30x (HAL, PAL, CAN, GPT, ICU, PWM, Serial,
+ SPI, UART, USB).
+- NEW: AT91SAM7A3 I2C support.
+- NEW: AT91SAM7A3 basic support.
+- NEW: Unified the STM32F4xx and STM32F2xx platform code. The STM32F2xx now is
+ only supported as an STM32F4xx variant and not tested separately.
+- NEW: Updated STM32F1, F2, F4, L1 ADC drivers to allow HW triggering.
+- NEW: Added a new option STM32_ETH1_CHANGE_PHY_STATE to the STM32 MAC driver,
+ this change is connected to bug 3570335.
+- NEW: Modified the CAN drivers to use the new event flags mechanism, the
+ previous flags handling has been removed.
+- NEW: Modified serial and serial_usb drivers to use the new event flags
+ mechanism, the previous flags handling in BaseAsynchronousChannel has
+ been removed.
+- NEW: Improved the kernel events subsystem, now event sources can associate
+ source-specific flags to the listener, the flags can then be retrieved
+ using the new APIs chEvtGetAndClearFlags() and chEvtGetAndClearFlagsI().
+ Some old APIs have been renamed to increase consistency of the module.
+- NEW: Added VLE support to the Power Architecture GCC port.
+- NEW: Reorganized the Power Architecture GCC port along the lines of the
+ ARMCMx port, now it can support multiple core types.
+- NEW: Updated the Power Architecture rules.mk file to put object and listing
+ files into a ./build directory like ARM ports already do.
+- CHANGE: The STM32 Serial driver has been split in two distinct versions,
+ one for older devices up the STM32F4xx, the other for new devices starting
+ from the STM32F0xx.
+ (TODO: Update IAR and Keil projects because different paths, update
+ documentation projects).
+
+*** 2.5.0 ***
+- FIX: Fixed anomaly in USB enumeration (bug 3565325)(backported to 2.4.3).
+- FIX: Fixed problem with lwIP statistics (bug 3564134)(backported to 2.4.3).
+- FIX: Fixed packed structures macros not functional in IAR and RVCT port
+ (bug 3561279)(backported to 2.4.3 and 2.2.10).
+- FIX: Fixed Problem in FatFs demos related to LFN (bug 3560980)(backported
+ to 2.4.3 and 2.2.10).
+- FIX: Fixed problem in STM32 DMA1 stream1 IRQ handler (bug 3538468)
+ (backported to 2.4.2).
+- FIX: Fixed TIM8 not working in STM32 GPT driver (bug 3536523)(
+- FIX: Fixed wrong priority assigned to TIM8 in STM32 ICU driver (bug 3536950)
+ (backported to 2.4.2).
+- FIX: Fixed TIM8 not working in STM32 GPT driver (bug 3536523)(backported
+ to 2.4.2).
+- FIX: Fixed timer overflow not working in STM32 ICU driver for TIM1/TIM8 (bug
+ 3536522)(backported to 2.4.2).
+- FIX: Fixed wrong DMA channels on USART2 in STM32F10X_MD_VL devices (bug
+ 3536070)(backported to 2.4.2).
+- FIX: Fixed issue with DMA channel init in STM32 ADC and SPI drivers (bug
+ 3535938)(backported to 2.2.10 and 2.4.2).
+- FIX: Fixed issue debugging mmc_spi (bug 3535887)(trunk only).
+- FIX: Fixed unreliable PHY initialization (bug 3534819)(backported to 2.4.2).
+- FIX: Fixed wrong ADC callback buffer pointer in ADC driver (bug 3534767)
+ (backported to 2.2.10 and 2.4.2).
+- FIX: Fixed STM32F2 RTC subseconds (bug 3533414)(trunk only).
+- FIX: Fixed problem with arm-v6m and state checker (bug 3532591)(backported
+ to 2.4.2).
+- FIX: Fixed wrong MAC divider setting in STM32 MAC driver (bug 3531290)
+ (backported to 2.4.2).
+- FIX: Fixed wrong MCO1 divider in STM32F2/F4 HAL (bug 3531289)(backported
+ to 2.4.2).
+- FIX: Fixed missing "break" in AVR PAL driver (bug 3530924)(backported
+ to 2.4.2).
+- FIX: Fixed timeout related race condition in STM32 I2C driver (bug 3530043)
+ (backported to 2.4.2).
+- FIX: Fixed wrong macro check in STM32 MAC driver (bug 3527179)(backported
+ to 2.4.2).
+- FIX: Fixed error in STM32L-Discovery board.h file (bug 3526918)(backported
+ to 2.4.2).
+- FIX: Fixed inconsistent LPCxxx Internal RC oscillator names (bug 3524138)
+ (backported to 2.2.10 and 2.4.1).
+- FIX: Fixed wrong frequency limit checks vs VDD in STM32F2xx HAL (bug 3524094)
+ (backported to 2.4.1).
+- FIX: Fixed STM32 I2C1 wrong alternate TX DMA setting (bug 3524088)
+ (backported to 2.4.1).
+- FIX: Fixed system state check problem related to FatFS (bug 3523769).
+- FIX: Fixed three testhal builds fail (bug 3523322)(backported to 2.4.1).
+- FIX: Fixed MAC driver functions with invalid name (bug 3522808)(backported
+ to 2.2.10 and 2.4.1).
+- FIX: Fixed code coverage crashes with Linux/gcc-4.4.5 (bug 3522301)
+ (backported to 2.4.1).
+- FIX: Fixed macro dmaWaitCompletion() fails to compile in STM32 HAL (bug
+ 3519202)(backported to 2.4.1).
+- FIX: Fixed ARM addresses generated in vectors table (bug 3519037)(backported
+ to 2.2.10 and 2.4.1).
+- FIX: Fixed missing serial driver functionality for SAM7S64, SAM7S128 and
+ SAM7S512 (bug 3517648)(backported to 2.2.10 and 2.4.1).
+- FIX: Fixed a few more spelling fixes (bug 3515531)(backported to 2.4.1).
+- FIX: Fixed spurious ) char in STM32 serial_lld.h (bug 3514138)(backported
+ to 2.2.10 and 2.4.1).
+- FIX: Fixed problem with FPU initialization in GCC Cortex-M4 port (bug
+ 3513897)(backported to 2.4.1).
+- FIX: Spelling fixes (bug 3510812)(backported to 2.4.1).
+- FIX: Fixed STM32 ICUD8 not functional because wrong initialization (bug
+ 3508758)(backported to 2.4.1).
+- FIX: Fixed chMBFetchI does not decrement mb_fullsem (bug 3504450)(backported
+ to 2.2.9 and 2.4.1).
+- FIX: Fixed STM32 PLLI2S initialization error (bug 3503490)(backported
+ to 2.4.1).
+- FIX: Fixed USART3 not working on STM32F2/F4 UART driver (bug 3496981)
+ (backported to 2.4.1).
+- FIX: Fixed stack misalignment on Posix-MacOSX (bug 3495487)(backported
+ to 2.4.1).
+- FIX: Fixed STM8S HSI clock initialization error (bug 3489727)(backported to
+ 2.2.9 and 2.4.1).
+- FIX: Fixed MMC over SPI driver performs an unnecessary SPI read (bug
+ 3486930)(backported to 2.2.9 and 2.4.1).
+- FIX: Fixed Realtime counter initialization in STM32 HALs (bug 3485500)
+ (backported to 2.4.1).
+- FIX: Fixed PPC port broken when CH_DBG_SYSTEM_STATE_CHECK is activated
+ (bug 3485667)(backported to 2.4.1).
+- FIX: Fixed missing PLL3 check in STM32F107 HAL (bug 3485278)(backported
+ to 2.4.1).
+- FIX: Fixed ADC maximum frequency limit in STM32F2/F4 ADC drivers (bug
+ 3484947)(backported to 2.4.1).
+- FIX: Fixed various minor documentation errors (bug 3484942)(backported
+ to 2.4.1).
+- NEW: Added Eclipse project files to most demos. The project are setup to
+ have paths relative to a variable named CHIBIOS that must point to the
+ ChibiOS/RT installation path. The variable must be defined under
+ Window->Preferences->General->Workspace->Linked_Resources and must contain
+ a path without the trailing slash character.
+- NEW: Added memory signature record to the registry in order to simplify
+ the implementation of ad-hoc debuggers.
+- NEW: Small andjustment in chcore.h files under ./os/ports/GCC required by a
+ difference in GCC 4.7.x.
+- NEW: Added another STM32F4-Discovery demo using the on-board MEMS, SPI
+ and PWM. Removed MEMS handling from the old demo because code size limits
+ on non-free compilers.
+- NEW: Added configuration wizard plugin under ./tools/eclipse/plugins. This
+ first version is able to configure the board files for STM32F0xx, STM32F4xx
+ and STM32L1xx.
+- NEW: Added USART6 support to the STM32 UARTv1 driver, contributed by Erik
+ van der Zalm.
+- NEW: Added demo for Arduino Mega, contributed by Fabio Utzig.
+- NEW: Added support for ATmega1280, contributed by Fabio Utzig.
+- NEW: Added I2C driver for AVR, contributed by Fabio Utzig.
+- NEW: Added FatFs demo for the Olimex STM32-P107 board.
+- NEW: Added support for the Olimex STM32-E407 board. Added an integrated
+ demo including USB-CDC, lwIP with web server, FatFs and shell, all running
+ together.
+- NEW: Added an experimental and unsupported STM8 port for the IAR compiler,
+ contributed by "king2".
+- NEW: Updated STM8 header files to latest versions from ST.
+- NEW: Reorganized the STM32 EXT driver to have a sub-platform specific
+ part containing all the ISR related code, this has been necessary because
+ the significant differences among the various sub-families.
+- NEW: Validated CAN driver on STM32F2/F4 (backported to 2.4.2).
+- NEW: USB implementation for STM32F105/F107/2xx/F4xx devices.
+- NEW: Improved SerialUSB driver using the new queued mode, much smaller
+ than the previous driver.
+- NEW: Improved USB driver model supporting also queues for endpoint I/O,
+ packet mode removed.
+- NEW: Added an application-defined field to I/O queues (a void pointer).
+- NEW: Added board files for Maple Mini STM32F103, contributed by Wagner
+ Sartori Junior.
+- NEW: Added SSP1 capability to the LPC13xx SPI driver.
+- NEW: Updated vendor headers for LPC11xx and LPC13xx, the new headers
+ support several new devices.
+- NEW: Demo for STM32F0-Discovery board.
+- NEW: Initial support for STM32F0xx devices, added a specific ADC driver.
+ Validated EXT, GPT, ICU, PAL, PWM, Serial, SPI, UART drivers.
+- NEW: Added a common ancestor class to the SDC and MMC_SPI drivers. This
+ allows to share code and definitions.
+- NEW: Modified the SDC driver to implement the new block devices abstract
+ interface.
+- NEW: Added two new functions to the MMC_SPI driver: mmcSync() and
+ mmcGetInfo(). Also implemented the new block devices abstract
+ interface. Moved the configuration parameters from mmcObjectInit() to
+ the configuration structure saving some RAM space. Updated demos.
+- NEW: Added an abstract interface for block devices in the HAL. This
+ abstraction layer is meant to unify the access protocol to the SDC and
+ MMC_SPI (and potentially others) device drivers.
+- NEW: Added an abstract interface for serial devices in the HAL. This
+ interface is meant to replace the equivalent class already present in the
+ kernel. access macros are similar except for the prefix, "chn" instead
+ of "chIO".
+- NEW: Updated the MSP port to work with the latest MSPGCC compiler (4.6.3
+ LTS 20120406 unpatched), now the old MSPGCC 3.2.3 is no more supported
+ (backported to 2.4.1).
+- NEW: EXT driver improved, now it is possible to reprogram channels at
+ runtime without necessarily specifying a new configuration.
+ TODO: Update AT91SAM7 EXT driver.
+- NEW: Integrated FatFS 0.9, now the FatFS integration files are centralized
+ under ./os/various/fatfs_bindings and shared among all demos. The FatFS
+ file ffconf.h is now application-specific like all the other configuration
+ files.
+- NEW: Added an new option CORTEX_PRIGROUP_INIT to the Cortex-Mx ports in
+ order to make priority organization configurable, the default is to
+ assign all the available priority bits to preemption priority with no
+ sub-priorities.
+- NEW: Added a new function chPoolLoadArray() to the Memory Pools subsystem,
+ it allows to load an entire array element's into a pool with a single
+ operation.
+- NEW: Addes support for .S patch in the GCC ARM ports, by Ayman El-Khashab.
+- NEW: Added a switch to the STM32F4 Makefile files in order to enable or
+ disable the FPU support in a single place.
+- NEW: Added float support (optional) to chprintf(), by Fabio Utzig.
+- NEW: Added overflow handling in the ICU driver (contributed by Xo).
+- NEW: Updated debug plugin 1.0.8 (backported to 2.4.0).
+- NEW: Added more accurate UBRR calculation in AVR serial driver (backported
+ to 2.4.0).
+- NEW: Revision of the round-robin scheduling, now threads do not lose their
+ time slice when preempted. Each thread has its own time slices counter.
+ TODO: Seek optimizations.
+- NEW: Modified the Virtual Timers management, now the callback is invoked
+ not in lock mode. This change reduces the interrupt jitter caused by
+ multiple timers used at same time.
+- NEW: Added board files and demo for Olimex LPC-P1343 (contributed by
+ Johnny Halfmoon).
+- NEW: Added handling of input 2 to the STM32 ICU driver (contributed by
+ Fabio).
+- NEW: STM32 Ethernet driver completed. Added STM32F107 and STM32F407
+ lwIP demos (backported to 2.4.1).
+- NEW: lwIP related code is not centralized into a single place, no need to
+ duplicate the code in each application or demo (backported to 2.4.1).
+- CHANGE: Added two new methods to the BaseSequentialStream interface:
+ chSequentialStreamPut() and chSequentialStreamGet().
+- CHANGE: Removed the chioch.h header from the kernel, now channels interface
+ is exported by the HAL. Removed functions chPutWouldBlock() and
+ chGetWouldBlock().
+- CHANGE: Removed macro chMsgGetS(), chMsgGet() is still available.
+- CHANGE: chprintf() now takes a BaseSequentialStream as parameter instead
+ of a BaseChannel making it more generic.
+- CHANGE: Now the shell requires a BaseSequentialStream instead of a
+ BaseChannel for communications making it more generic.
+- CHANGE: Kernel memory pools now do not check the alignment of the inserted
+ objects, it is responsibility of the application to insert properly
+ aligned objects.
+- CHANGE: The PORT_INT_REQUIRED_STACK parameter for the Cortex-Mx ports has
+ been increased to 32 from 16 because the stack frame sizes are increased
+ when compiling with optimizations disabled, which is common during
+ debugging. In order to save RAM trim back this value when compiling with
+ optimizations enabled (backported to 2.4.1).
+- CHANGE: Renamed Ethernet driver in AT91 HAL ETHD1 (backported to 2.4.1).
+- CHANGE: Macros icuGetWidthI() and icuGetPeriodI() renamed to icuGetWidth()
+ and icuGetPeriod().
+- Various documentation fixes and improvements.
+
+*** 2.3.5 ***
+- FIX: Fixed RTC compile problem on STM32F103 (bug 3468445).
+- FIX: Fixed PWM with TIM1 and TIM8 broken in STM32 HAL (bug 3458947).
+- FIX: Fixed SYSCFG clock not started in STM32L1/F4 HALs (bug 3449139).
+- FIX: Fixed wrong definitions in STM32L-Discovery board file (bug 3449076).
+- OPT: Improved the exception exit code in the GCC Cortex-Mx ports.
+- NEW: Added a DMA stress test application for the STM32F4 in order to assess
+ robustness of the whole HAL.
+- NEW: Added a Time Measurement driver to the HAL, this generic driver uses
+ the realtime counters abstracted in the HAL driver.
+- NEW: Improved the STM32F1xx HAL driver, it now has the same features and
+ configuration options of the newer STM32s.
+- NEW: MMC over SPI driver improved to handle high capacity cards, by
+ Matthias Blaicher.
+- NEW: Added PVD support to the HAL of all STM32s, by Barthess.
+- NEW: Added to the HAL driver the handling of an abstract realtime free
+ running counter, added the capability to all the STM32 HALs.
+- NEW: Modified ARM and ARMCMx build rules to allow parallel build. Now the
+ log outputs one dummy compilation command in order to allow paths discovery
+ by Eclipse.
+- NEW: Added an utility module to access LIS302DL MEMS using a SPI.
+- NEW: Updated STM32F2xx support by inheriting the work done on the STM32F4xx,
+ the whole thing is untested because lack of hardware.
+- NEW: Files nvic.c and nvic.h moved under ./os/ports/common/ARMCMx, removed
+ the duplicated instances under the GCC, IAR and Keil ports. Function names
+ prefixes changed from "NVIC" to "nvic" because style conventions.
+- NEW: Added voltage regulator initialization to the STM32F4xx HAL.
+- NEW: Added a linker script that demonstrates how to put stacks and other
+ critical structures in the CCM RAM instead normal RAM.
+- NEW: Added experimental support for the Cortex-M4 FPU (default when the
+ FPU is present but can be disabled).
+- NEW: Improved I2C driver model and STM32 implementation by Barthess.
+- CHANGE: Removed the option to change the stack alignment in the GCC
+ Cortex-Mx ports, now alignment is always 64 bits.
+- CHANGE: Modified the function palSetGroupMode() to have an offset parameter
+ in order to make it similar to other functions operating on groups.
+- CHANGE: Increased main and process default stack sizes from 0x100 to 0x200
+ in LPC1114 and LPC1343 linker scripts.
+
+*** 2.3.4 ***
+- FIX: Fixed Extra initialization in STM32 SPI driver (bug 3436127)
+ (backported to 2.2.8).
+- FIX: Fixed DMA priority setting error in STM32 UART driver (bug 3436125)
+ (backported to 2.2.8).
+- FIX: Fixed DMA priority setting error in STM32 SPI driver (bug 3436124)
+ (backported to 2.2.8).
+- FIX: Fixed broken support for UART5 in STM32 serial driver (bug 3434094)
+ (backported to 2.2.8).
+- FIX: Fixed broken TIM8 support in STM32 PWM driver (bug 3418620).
+- FIX: Fixed halconf.h file corrupted in some STM32 demos (bug 3418626).
+- NEW: Added an unified registers file for STM32: stm32.h. This file includes
+ the appropriate vendor file then adds its own additional definitions.
+- NEW: Added demo for the ST STM32F4-Discovery kit.
+- NEW: STM32F4xx ADC driver implementation.
+- NEW: Added initialization of the NVIC VTOR register to all Cortex-Mx (v7M)
+ ports. Also added a port option CORTEX_VTOR_INIT to enforce a different
+ default value into the register.
+- NEW: Removed the warning about the "untested M4 platform", now it is
+ tested and officially supported.
+- NEW: Reorganized the STM32F1xx hal_lld_xxx.h files in order to distribute
+ the capability macros into the appropriate file (previously those were all
+ in the common hal_lld.h).
+- NEW: Added HAL, Serial, ADC, EXT, GPT, ICU, PWM, SPI and UART support for
+ the STM32F4xx sub-family.
+ TODO: Add CAN and SDC, the drivers need to be ported and tested.
+- NEW: Added handling of USART6 to the STM32 serial driver.
+- NEW: Added USE_COPT setting to all makefiles, contributed by Mabl.
+- NEW: Added EXT driver implementation for AT91SAM7x, contributed by Florian.
+ TODO: Test application missing.
+- NEW: Updated USB driver model and STM32 implementation and fixed several
+ problems.
+ - Changed the API to move buffer copy operations out of critical zones.
+ - Added usbConnectBus() and usbDisconnectBus() functions.
+ - Fixed problems with incorrect assertions.
+- NEW Updated the SERIAL_USB driver to match the new USB API, also fixed
+ some problems.
+ - Fixed incorrect use of input queues, the change required a change in
+ input queues too.
+- NEW: Added a macro THD_STATE_NAMES to chthreads.h. This macro is an
+ initializer for string arrays containing thread state names.
+- NEW: Added memory copy functionality to the STM32 DMA driver.
+- NEW: Implemented new makefile system for ARM GCC ports, now objects,
+ listings and output files are generated into a "build" directory and not
+ together with sources, also implemented a simplified output log mode.
+ Now makefiles and load script files are requirements and trigger a
+ rebuild if touched.
+- NEW: Updated AVR demos to use the new PAL driver.
+- NEW: Added Keil build files to the STM32L-Discovery demo.
+- CHANGE: Now the callback associated to input queues is invoked before
+ reading each character. Previously it was invoked only before going
+ to sleep into the THD_STATE_WTQUEUE state.
+- CHANGE: Moved the STM32 DMA helper drivers files under the sub-family
+ specific directories because documentation issues.
+
+*** 2.3.3 ***
+- FIX: Fixed missing UART5 definition in STM32 HAL (bug 3411774)(backported
+ to 2.2.8).
+- FIX: Fixed uninitialized variable in STM32 PWM and ICU drivers (bug 3413558).
+- FIX: Fixed wrong parameter passed to the DMA error hook in STM32 ADC driver,
+ the DMA error hook has been removed entirely in the new ADC driver model
+ (bug 3413214).
+- FIX: The function chThdExit() triggers an error on shell return when the
+ system state checker is enabled (bug 3411207)(backported to 2.2.8).
+- FIX: Some ARMCMx makefiles refer the file rules.mk in the ARM7 port (bug
+ 3411180)(backported to 2.2.8).
+- FIX: Fixed wrong check on CH_DBG_ENABLE_STACK_CHECK setting (bug 3387671)
+ (backported to 2.2.7).
+- FIX: Fixed wrong APB1 frequency check (bug 3361039)(backported to 2.2.7).
+- FIX: Fixed missing state in shell demos (bug 3351556)(backported to 2.2.7).
+- FIX: Fixed race condition in Cortex-Mx ports (bug 3317500)(backported
+ to 2.2.6).
+- FIX: Fixed wrong macro check in STM32 UART driver (bug 3311999)(backported
+ to 2.2.6).
+- FIX: Fixed wrong macro definition in ARMv6-M architecture files (bug
+ 3310084).
+- FIX: Fixed race condition in output queues (bug 3303908)(backported
+ to 2.2.4).
+- FIX: Fixed CH_USE_HEAP and CH_USE_MALLOC_HEAP conflict (bug 3303841)
+ (backported to 2.2.4).
+- FIX: Fixed timeout problem in the lwIP interface layer (bug 3302420)
+ (backported to 2.2.4).
+- NEW: Added AVR implementation of the PAL driver contributed by Leszek.
+- NEW: STM32L ADC driver implementation.
+- NEW: Improved ADC driver model, now it is possible to handle error
+ conditions during the conversion process.
+- NEW: STM32L1xx sub-family support, all STM32 drivers adapted and re-tested
+ on the new platform except ADC that will need a specific implementation.
+- NEW: Added new API chThdExitS() in order to allow atomic operations on
+ thread exit (backported to 2.2.8).
+- NEW: New EXT driver model and STM32 implementation.
+- NEW: New I2C driver model and STM32 implementation.
+ (evaluate the option to change the API to a synchronous model)
+- NEW: New RTC driver model and STM32 implementation.
+ (API and functionality review)
+- NEW: Improved MAC driver model, it now follows the same template of other
+ drivers.
+ TODO: implement macStop() in AT91SAM7X implementation.
+- NEW: New RCC helper driver for STM32F1xx and STM32L1xx, it simplifies
+ the use of the RCC resources and hides most differences found among the
+ various STM32 sub-families.
+- NEW: New DMA helper driver for STM32, it simplifies the use of the DMA
+ resources and hides most differences with the new enhanced DMA units
+ found in the STM32F2xx sub-family.
+- NEW: Now an error is generated at compile time when trying to enable the
+ options CH_DBG_ENABLE_STACK_CHECK on ports that do not support it.
+- NEW: Added a kernel-only Cortex-Mx demo as reference project for users not
+ interested in the HAL but just want to use the ChibiOS/RT kernel.
+ The demo is named ARMCM3-GENERIC-KERNEL and is defaulted to the STM32, in
+ order to use it on other families or on the ARM Cortex-M0 just change the
+ inclusion paths in the makefile.
+- NEW: Integrated new FatFs version 0.8b.
+- NEW: Added a new hook THREAD_CONTEXT_SWITCH_HOOK() that allows to insert
+ code just before a context switch. For example this hook could be used
+ in oder to implement advanced power management schemes.
+- NEW: Added a new debug option CH_DBG_SYSTEM_STATE_CHECK that ensures the
+ correct API call protocol. If an API is invoked out of the correct context
+ then the kernel panics with a debug message.
+- NEW: The ARMCMx startup file (crt0.c) now is able to fill the stack areas
+ with a filler (default behavior). This is required in order to easily assess
+ the stack usage at runtime.
+- NEW: Added the new CMSIS 2.1 headers, now CMSIS resides into a shared
+ location: ./os/ports/common/ARMCMx/CMSIS. Old CMSIS files have been
+ removed from the various platforms.
+- NEW: Removed all the ch.ld files from the ARMCMx demos, now the makefiles
+ point to common ld files under the various ports. Less duplication and
+ easier maintenance.
+- NEW: Improved stack checking and reorganized memory map for the Cortex-Mx
+ demos. Now stacks are allocated at the start of the RAM, an overflow of the
+ exception stack now triggers an exception (it could go unnoticed before).
+ The process stack is organized to be checked on context switch like other
+ threads. Now all threads have an explicit stack boundary pointer.
+- NEW: Added debug plugin for Eclipse under ./tools/eclipse (backported to
+ 2.2.7).
+- NEW: The debug macros chDbgCheck() and chDbgAssert() now can be externally
+ redefined. The macro chDbgCheck() no more includes the line number in the
+ description because incompatibility with the Cosmic compiler (backported to
+ 2.2.7).
+- NEW: Added provisional support for STM32F2xx. Because of this some
+ directories related to the STM32 have been renamed, your makefiles may
+ require adjustments.
+- NEW: Added a custom rule to the various rules.mk files, now it is possible
+ to add an user rule into the Makefiles.
+- NEW: Improvements to the trace buffer, now it stores a full thread pointer
+ and event time, changed names to debug variables by adding the "dbg_"
+ prefix (backported to 2.2.7).
+- NEW: Added a new functionality to the registry subsystem, now it is possible
+ to associate a name to the threads using chRegSetThreadName. The main and
+ idle threads have their name assigned by default (backported to 2.2.7).
+- NEW: Added TIM8 support to the STM32 GPT, ICU and PWM drivers.
+- NEW: Updated the STM32 header file to the latest version 3.5.0 and fixed
+ it in order to correct several bugs related to the XL family.
+- NEW: Added a chprintf() function to ./os/various, it can print on any
+ BaseChannel.
+- NEW: Improved the mini shell, enhanced info command, optimizations and
+ removed the shellPrint() and shellPrintLine() functions, now it uses
+ chprintf() for output.
+- NEW: lwIP 1.4.0 has been integrated, this new version does not require
+ custom hooks into the Thread structure and is thus much lighter.
+- NEW: FatFs demo for the STM32F103ZG using the SDC driver.
+- NEW: Now the STM32 SDC driver supports unaligned buffers transparently.
+ Optimized the driver for single block read and write operations. Optimized
+ the driver state machine.
+- NEW: Finished the reorganization of the Cortex-Mx ports, now also the
+ IAR and RVCT ports support the new Compact mode.
+- NEW: Added to the ARMv6-M sub-port an option to use the PendSV exception
+ instead of NMI for preemption (backported to 2.2.5).
+- NEW: Reorganization of the Cortex-Mx ports in order to reduced code and
+ comments duplication in the various headers (backported to 2.2.5).
+- NEW: Improved the ARMv7-M sub-port now there are two modes: Compact and
+ Advanced.
+ The advanced mode is equivalent to the previous versions, the compact mode
+ is new and makes the kernel *much* smaller and generally faster but does
+ not support fast interrupts (backported to 2.2.5).
+- NEW: Now the port layer exports info regarding the compiler and the port
+ options. The info are printed into the test reports. Date and time also
+ added.
+- CHANGE: Removed the option CH_USE_NESTED_LOCK, lwIP no more requires it and
+ it would have conflicted with CH_DBG_SYSTEM_STATE_CHECK which is far more
+ useful.
+- CHANGE: Renamed the scheduler functions chSchIsRescRequiredExI() to
+ chSchIsPreemptionRequired(), chSchDoRescheduleI() to chSchDoReschedule(),
+ chSysSwitchI() to chSysSwitch(). All those functions were special cases
+ and not regular I-class APIs.
+- CHANGE: Renamed the macros IDLE_THREAD_STACK_SIZE and INT_REQUIRED_STACK
+ to PORT_IDLE_THREAD_STACK_SIZE and PORT_INT_REQUIRED_STACK for consistency.
+- CHANGE: Removed the "old" Cortex-M3 port from the code, the current port
+ has no drawbacks and the old port is now just a maintenance cost.
+- CHANGE: Removed the CH_CURRP_REGISTER_CACHE option, it is GCC-specific so
+ it does not belong to the kernel options. The feature will be eventually
+ reimplemented as a port-specific option.
+- CHANGE: chiQGetFullI() and chOQGetFullI() become macros. The queues
+ subsystem has been optimized and is no more dependent on semaphores.
+ Note that the queues callbacks invocation policy has been slightly
+ changed, see the documentation (backported to 2.2.4).
+
+*** 2.3.2 ***
+- FIX: Fixed invalid BRR() macro in AVR serial driver (bug 3299306)(backported
+ to 2.2.4).
+- FIX: Fixed missing IRQ vectors amicable names for STM32 XL devices (bug
+ 3298889)(backported to 2.2.4).
+- FIX: Fixed wrong identifier in AVR serial driver (bug 3292084)(backported
+ to 2.2.4).
+- FIX: Fixed wrong macro check for STM32 XL devices (bug 3291898)(backported
+ to 2.2.4).
+- FIX: Fixed SPI driver restart in STM32 SPI driver implementation, also
+ applied the same fix to the STM8S SPI driver (bug 3288758)(backported to
+ 2.2.4).
+- FIX: Fixed missing state transition in ADC driver (bug 3288149)(backported
+ to 2.2.4).
+- FIX: Fixed missing state transition in SPI driver (bug 3288112)(backported
+ to 2.2.4).
+- FIX: Fixed spurious characters generated by Serial over USB driver (bug
+ 3276379).
+- NEW: Added an option to the kernel to not spawn the Idle Thread from within
+ chSysInit(), this way the application can spawn a custom idle thread or
+ even use the main() thread as idle thread (backported to 2.2.4).
+- NEW: Added new SDC driver model, Secure Digital Card.
+- NEW: SDC driver implementation for STM32.
+- NEW: Updated the STM32 header file to the latest version 3.4.0, had to
+ fix a bug regarding the STM32 XL sub-family.
+- NEW: New unified GCC startup file for Cortex-Mx processors, it is written
+ in C instead of asm and supports constructors/destructors. Improved the
+ Cortex-Mx linker scripts in all the GCC demos.
+- NEW: Now it is possible to share DMA channels in the STM32 HAL thanks
+ to a centralized manager. Channels are allocated when the driver is
+ started and released when it is stopped.
+- NEW: Added an STM32 C++ demo for the GNU compiler.
+- NEW: Added an STM32F103ZG demo for the STM3210E-EVAL evaluation board.
+- OPT: STM32 PWM driver implementation simplified.
+- CHANGE: Now pwmChangePeriod() does not implicitly disable the active
+ PWM channels.
+- CHANGE: Renamed the chSemSetCounterI() function to chSemAddCounterI() and
+ changed its behavior.
+- CHANGE: Modified the STM32 USB-CDC test demo to spawn a shell over the USB
+ serial connection.
+
+*** 2.3.1 ***
+- FIX: Fixed insufficient idle thread stack in Cortex-M0-GCC port (bug 3226671)
+ (backported to 2.2.3).
+- FIX: Fixed stack checking in Cortex-M0-GCC port (bug 3226657)(backported
+ to 2.2.3).
+- FIX: Fixed wrong checks in PAL driver (bug 3224681)(backported to 2.2.3).
+- FIX: Fixed wrong checks in I/O Queues (bug 3219197)(backported to 2.2.3).
+- FIX: Fixed invalid assertion in adcConvert() (bug 3205410)(backported
+ to 2.2.3).
+- NEW: Improvements to the PWM driver model:
+ - Easier configuration similar to the GPT driver initializations, macros
+ are no more required.
+ - Added a new function that allows to change the PWM period on the fly,
+ even from within callbacks. Formerly it was required to stop and restart
+ the driver.
+ - Improved driver documentation.
+- NEW: Added advanced mode to the STM32 PWM driver (TIM1 only).
+- NEW: Added new ICU driver model, Input Capture Unit.
+- NEW: ICU driver implementation for STM32.
+- NEW: Implemented stack checking in the Cortex-Mx RVCT port (backported
+ to 2.2.3).
+- NEW: Added support for PLL3 in STM32 HAL driver. Note, the format of the
+ mcuconf.h file is changed for STM32F105/STM32F107 devices.
+- NEW: Added board files for the Olimex STM32-P107.
+- NEW: Improved setup packets handling in the USB driver through a specific
+ callback.
+- NEW: Improvements to the PAL driver and various implementation in order
+ to make them more parenthesis friendly.
+- OPT: Simplified Serial over USB driver configuration.
+- CHANGE: Renamed the demo ARMCM3-STM32F107-GCC in ARMCM3-STM32F107 and added
+ IAR and Keil projects.
+- CHANGE: Now the ARMCM3-STM32F107 demo targets the board Olimex STM32-P107
+ as default.
+- CHANGE: Removed all the prefixes from the structure/union field names
+ in the HAL subsystem.
+- CHANGE: Updated the documentation to use Doxygen 1.7.4 which produces a much
+ more readable output. Also modified the documentation layout to put functions
+ and variables ahead of everything else in the group pages.
+ Doxygen version below 1.7.4 cannot be used anymore because differences in
+ templates. Note that now there are two Doxygen projects, one for generating
+ the CHM file the other for plain HTML.
+
+*** 2.3.0 ***
+- FIX: Fixed race condition in CM0 ports, the fix also improves the
+ ISR latency (bug 3193062)(backported to 2.2.2).
+- FIX: Fixed Cortex-Mx linker scripts alignment of __heap_base__, the
+ correct alignment is now enforced at runtime into core_init() in order
+ to make the OS integration easier (bug 3191112)(backported to 2.2.2).
+- FIX: Fixed error in function chCoreAllocI() function documentation (bug
+ 3191107)(backported to 2.2.2).
+- FIX: Fixed minor problem with memory pools (bug 3190512)(backported to
+ 2.2.2).
+- FIX: Stack overflow in CM0 ports when nearing interrupts saturation (bug
+ 3187105)(backported to 2.2.1).
+- FIX: Fixed error in _BSEMAPHORE_DATA macro (bug 3184139)(backported to
+ 2.2.1).
+- FIX: Error in MAC driver (bug 3179783)(backported to 2.2.1).
+- FIX: Fixed wrong serial driver macros (bug 3173336)(backported to 2.2.1).
+- NEW: Improved preemption implementation for the Cortex-M0, now it uses
+ the NMI vector in order to restore the original context. The change makes
+ IRQ handling faster and also saves some RAM/ROM space. The GCC port code
+ now does not inline the epilogue code in each ISR saving significant ROM
+ space for each interrupt handler in the system (backported to 2.2.3).
+- NEW: Added "IRQ STORM" long duration tests for the STM32, LPC11xx and
+ LPC11xx. The test demonstrates the system stability in a thread-intensive,
+ progressively CPU-saturating, IRQ-intensive long duration test.
+- NEW: Added two new functions to the events subsystem: chEvtBroadcastFlags()
+ and chEvtBroadcastFlagsI(). The old chEvtBroadcast() and chEvtBroadcastI()
+ become macros. The new functions allow to add the same flags to all the
+ registered listener threads.
+- NEW: Added I-Class functions to the MailBoxes subsystem, now it is
+ possible to use them as a transport layer between ISRs and Threads
+ (backported to 2.2.2).
+- NEW: Added new USB driver model, probably it will evolve in next
+ releases.
+- NEW: USB driver implementation for STM32.
+- NEW: Added "serial over USB" driver, it implements a Communication
+ Device Class exposing it as a normal serial driver to applications,
+ probably it will evolve in next releases.
+- NEW: Added STM32 USB CDC loopback test application.
+- NEW: Added new GPT driver model, General Purpose Timer. The driver
+ allows to access the available timers in an abstract way.
+- NEW: GTP driver implementation for STM32, LPC13xx and LPC11xx.
+- NEW: Added STM32 GPT test application.
+- NEW: Implemented new event IO_TRANSMISSION_END in the generic serial
+ driver. This event marks the physical transmission end of a data stream.
+- NEW: Implemented the new IO_TRANSMISSION_END event in the STM32 serial
+ driver.
+- NEW: Added explicit reset of all peripherals inside the STM32 HAL driver.
+ Removed the separate resets on initialization from the various other
+ drivers saving significant space.
+- OPT: Removed TIMx reset on system startup in the STM32 PWM driver, the
+ timers are already reset on driver startup.
+- CHANGE: The functions chEvtSignal() and chEvtSignalI() have been renamed
+ to chEvtSignalFlags() and chEvtSignalFlagsI() for consistency.
+- CHANGE: Swapped the numeric values of the TIME_IMMEDIATE and TIME_INFINITE
+ constants. Fixed the relative documentation in various places (backported
+ to 2.2.2).
+- Many documentation improvements.
+
+*** 2.1.8 ***
+- FIX: Fixed error in STM32 ADC driver macro names (bug 3160306)(backported
+ to 2.0.11).
+- FIX: Fixed IAR Cortex-Mx port memory organization problem (bug 3158776).
+- FIX: Fixed STM32F103 demo's incorrect clock settings (bug 3153746).
+- NEW: Added OTG clock setting to the STM32 HAL.
+- NEW: Added stack check support to the IAR Cortex-Mx port.
+- CHANGE: Removed .uvopt files from the Keil projects.
+
+*** 2.1.7 ***
+- FIX: Fixed various errors in the HAL documentation (bug 3153591).
+- FIX: Fixed error in chIOGetxxxxxEventSource() macros (bug 3153550)
+ (backported to 2.0.10)
+- FIX: Fixed error in STM32 unbuffered UART driver (bug 3153437).
+- FIX: Fixed wrong macro check in LPC214x driver (bug 3152510).
+- FIX: Fixed switch condition error in STM32 PWM driver (bug 3152482)
+ (backported to 2.0.10).
+- FIX: Fixed error in output queues static initializer (bug 3149141)
+ (backported to 2.0.9).
+- FIX: Fixed extra notifications in input queues (bug 3148525)(backported
+ to 2.0.9).
+- NEW: New ARM Cortex-Mx port for RVCT compiler.
+- NEW: Integrated the various Cortex-Mx GCC, IAR and RVCT demos in unified
+ demos with multiple project files, the code is exactly the same. Renamed
+ the directories removing the compiler suffix.
+- NEW: Added an USB clock configuration in the STM32 HAL driver (LD, MD, HD).
+- NEW: New semaphore API chSemSetCounterI().
+- NEW: New queue APIs chIQGetFullI() and chOQGetFullI().
+- CHANGE: Serial drivers now have a single event source instead of three,
+ the event source is located in the superclass, this allows to create
+ alternative implementations of the serial driver while keeping compatibility,
+ the change also allowed to save 8/4 RAM bytes per serial driver.
+- CHANGE: Modified the ADC and CAN drivers to allow a NULL pointer for
+ the configuration structure if it is not required by the implementation.
+- CHANGE: Modified the MMC_SPI driver to *require* a NULL as pointer to
+ the configuration.
+- CHANGE: Removed enforced inlining for the chSchReadyI() function when
+ the CH_OPTIMIZE_SPEED is enabled. Now the matter is left to the compiler
+ specific settings. This change is meant to increase compatibility with
+ compilers that have a different inlining semantic than GCC when not in
+ C99 mode.
+- CHANGE: Changed the declaration of the main() function in all demos
+ without arguments. Removed the clearing of arguments from the startup
+ files and saved some space.
+- CHANGE: Queues callbacks now have as parameter a pointer to the queue,
+ there were no parameters previously.
+- Documentation related fixes.
+
+*** 2.1.6 ***
+- FIX: Fixed error in sdPutTimeout() macro (bug 3138763)(backported in 2.0.9).
+- NEW: New ARM Cortex-Mx port for IAR compiler.
+- NEW: Now the STM32 CAN driver puts the lower half word of the ESR
+ register in the upper half word of the can status word for easier
+ debug.
+- CHANGE: Changes in the board files organization, now the board
+ initialization is invoked from within halInit() after all the device
+ drivers have been initialized. Now applications are required to
+ explicitly invoke halInit() and chSysInit() from within their main().
+- CHANGE: Removed the CMSIS files from the ARMCMx port, added the headers
+ into the various HAL platforms requiring them. The change is required
+ because the port layer must not have vendor specific dependencies and
+ there is the possibility that the various vendors would use different
+ CMSIS versions now that CMSIS 2.x has been released.
+- CHANGE: Modified the start of the ADC in the STM32 ADC driver, now it is
+ no more required to specify ADC_CR2_EXTSEL_SWSTART and ADC_CR2_CONT
+ in the CR2 register configuration. Also reordered the start sequence
+ in order to allows a longer stabilization time for the ADC.
+- Documentation improvements.
+
+*** 2.1.5 ***
+- FIX: Fixed references to non-existing SSP1 device in LPC13xx SPI device
+ driver (bug 3127926).
+- FIX: Fixed broken SPI synchronous API (bug 3127921).
+- FIX: Fixed missing vector.c files in LPC11xx and LPC13xx ports (bug 3124849).
+- FIX: Fixed pwmDisableChannel() now working in STM32 PWM driver (bug 3121246).
+- FIX: Fixed problem with PWM channel callbacks (bug 3120785).
+- NEW: Added support for TIM5 in the STM32 PWM driver.
+- NEW: Added to the ARM port the option to externally redefine the port IRQ
+ macros in order to accomodate different implementations without have to
+ change the port layer.
+- CHANGE: Modified the STM32_PWM_PWMx_IRQ_PRIORITY macros in the STM32
+ PWM driver (and all the STM32 mcuconf.h files) and renamed them in
+ STM32_PWM_TIMx_IRQ_PRIORITY for consistency.
+- Documentation related fixes.
+
+*** 2.1.4 ***
+- FIX: Fixed failed memory recovery by registry scan, improved the related
+ test case (bug 3116888)(backported to 2.0.8).
+- FIX: Fixed failure in STM32 ADC driver when a linear buffer mode is used
+ (bug 3114696).
+- FIX: Fixed PWM channels going to ACTIVE state when the pulse width is
+ set to zero in the STM32 PWM driver (bug 3114481)(backported to 2.0.8).
+- FIX: Fixed PWM channels return to IDLE state in STM32 PWM driver (bug
+ 3114467)(backported to 2.0.8).
+- FIX: Fixed wrong initializer macros in STM32 PWM driver (bug 3114319).
+- FIX: Fixed syntax error in STM32 PWM driver(bug 3114266).
+- FIX: Fixed typo in board name (bug 3113574)(backported to 2.0.7).
+- FIX: Fixed defective event wait functions with timeout (bug 3113443)
+ (backported to 2.0.7).
+- NEW: More improvements to the ADC and SPI drivers, now synchronous
+ operations can also have callbacks, optimized ISR code paths.
+- NEW: Added to the STM32 ADC driver the macros for easy handling of the
+ sampling time for each channel.
+- NEW: Greatly simplified the STM32 PWM driver implementation.
+- NEW: Added new macro PWM_FRACTION_TO_WIDTH() to the PWM driver model.
+- NEW: ARM7 port reorganization following the same pattern of the ARMCMx
+ one, on now the port is also supports the ARM9 architecture (but not
+ tested yet hardware). Removed the dependencies between the port layer
+ and the vendors-provided headers.
+- NEW: Initial STM8L support: HAL, PAL and Serial drivers.
+- NEW: Added demo for the ST STM8L-Discovery kit.
+- NEW: Added support for the STM32 Value Line to the HAL.
+- NEW: Added demo for the ST STM32VL-Discovery kit.
+- OPT: STM32 SPI driver implementation improved, reduced latency when
+ starting a transfer.
+- CHANGE: Improved the STM32 HAL to support multiple sub-families, at compile
+ time now it is possible to test the presence of any single peripheral into
+ the specified STM32 device.
+- CHANGE: Separated dynamic threads code into dedicated files: chdynamic.c
+ and chdynamic.h.
+- CHANGE: Moved the declaration of the variable pal_default_config from
+ hal_lld.c to the various board.c. That structure is more meaningful in
+ the board layer because it is related to the board initialization.
+- CHANGE: Removed the various assembler files for the STM32 interrupt
+ vectors, now it is a single vectors.c file.
+- CHANGE: Deleted ./os/ports/GCC/ARM.
+- CHANGE: Renamed ./os/ports/GCC/ARM7 in ./os/ports/GCC/ARM.
+- CHANGE: Renamed ./os/hal/platforms/STM8 in ./os/hal/platforms/STM8S.
+- CHANGE: Renamed ./testhal/STM8 in ./testhal/STM8S.
+- Added SPI driver to the STM8S documentation, it was missing.
+- Improved documentation for the ARM and ARMCMx ports.
+
+*** 2.1.3 ***
+- FIX: Fixed broken STM32 synchronous UART driver (bug 3100946).
+- FIX: Broken C++ wrapper (bug 3100925).
+- FIX: Broken lwIP/uIP demos (bug 3100901).
+- FIX: DMA not initialized under some conditions (bug 3099701).
+- FIX: Restored the RIDE7 build files in the STM32F103 demo, note the RIDE7
+ build files are not supported so this has not been tracked as a bug.
+- NEW: Added an SPI driver to the STM8 platform support.
+- NEW: Added a simple STM8 SPI demo under ./testhal/STM8/SPI.
+- NEW: Divided the file STM32/vectors.s in several files, one for each
+ STM32 sub-family. This has been done in order to remove the preprocessor
+ directives from assembler files and to support all the various STM32
+ sub-families.
+- CHANGE: Renamed ./os/ports/GCC/ARMCMx/STM32F10x in STM32.
+- CHANGE: Divided the file ARMCMx/crt0.s in crt0_v6m.s and crt0_v7m.s in
+ order to remove the preprocessor directives from assembler files.
+- CHANGE: Renamed the HAL settings macro names, removed the CH_ prefix
+ because it is reserved for the kernel namespace.
+ NOTE: ****** Make sure to use a mcuconf.h file taken from ******
+ ****** this version in your project. ******
+
+*** 2.1.2 ***
+- FIX: Fixed typo in memstreams.h (bug 3089567)(backported to 2.0.6).
+- FIX: Fixed wrong macro check in LPC214x and AT91SAM7 serial drivers (bug
+ 3088776)(backported to 2.0.6).
+- FIX: Fixed non functioning option SPI_USE_MUTUAL_EXCLUSION=FALSE (bug
+ 3084764)(backported to 2.0.6).
+- FIX: Fixed wrong macro check in STM32 serial support (bug 3078891)(backported
+ to 2.0.6).
+- FIX: Fixed non functioning option CH_USE_NESTED_LOCKS (bug 3075544)
+ (backported to 2.0.6).
+- FIX: Incorrect AT91SAM7X initialization, thanks Leszek (bug 3075354)
+ (backported to 2.0.5).
+- FIX: Fixed race condition in function chSchGoSleepTimeoutS(), thanks Bal�zs
+ (bug 3074984)(backported to 2.0.5).
+- FIX: Fixed race condition in threads creation (bug 3069854)(backported
+ to 2.0.5).
+- FIX: Fixed broken CH_DBG_ENABLE_STACK_CHECK option in legacy CM3 port (bug
+ 3064274)(backported to 2.0.5).
+- FIX: Fixed CAN_USE_SLEEP_MODE setting (bug 3064204)(backported to 2.0.5).
+- FIX: Fixed potential issue with GCC reorganizing instructions around "asm
+ volatile" statements (bug 3058731)(backported in 2.0.4).
+- FIX: Fixed reduced ARM7 performance with GCC 4.5.x (bug 3056866)(backported
+ to 2.0.4).
+- FIX: Fixed crash of the Posix simulator under Ubuntu 10.4 (bug 3055329)
+ (backported to 2.0.3).
+- FIX: Fixed incorrect PLL2 setting in STM32 HAL (bug 3044770)(backported
+ in 2.0.3).
+- FIX: Fixed wrong check on STM32_HCLK (bug 3044758)(backported to 2.0.3).
+- FIX: Fixed wrong condition check in STM32 PWM driver (bug 3041414)
+ (backported in 2.0.3).
+- FIX: Corrupted IRQ stack in Cortex-Mx port (bug 3041117)(backported to
+ 2.0.3).
+- FIX: Fixed a documentation error regarding the ADC driver function
+ adcStartConversion() (bug 3039890)(backported to 2.0.3).
+- NEW: New I2C driver model (not complete and no implementations yet).
+- NEW: New SPI driver model, the new model supports both synchronous and
+ asynchronous operations and, in general, simplifies the implementation of the
+ low level driver. The new driver also specifies a simplified polled exchange
+ API, useful for efficiently sending small amount of data over high speed
+ connections. The driver state diagram changed slightly changed so be careful.
+- NEW: New ADC driver model, the new model supports both synchronous and
+ asynchronous operations and, in general, simplifies the implementation of the
+ low level driver. The driver state diagram changed slightly changed so be
+ careful.
+- NEW: Improved PWM driver model, added several macros that helps to setup
+ configuration structures and to specify pulse widths also as percentages or
+ degrees using a fixed point notation. Added new pwmEnableChannelI() and
+ pwmDisableChannelI() APIs in order to allow channel reprogramming from
+ within callbacks or interrupt handlers, the new APIs are implemented as
+ macros so there is no footprint overhead.
+- NEW: Added driver fields and initialization hooks for the callback-based
+ drivers. The hooks are named XXX_DRIVER_EXT_FIELDS and
+ XXX_DRIVER_EXT_INIT_HOOK().
+- NEW: Added to the UART driver the capability to return the number of
+ not yet transferred frames when stopping an operation.
+- NEW: Added more compile-time checks to the various STM32 device drivers.
+- NEW: Improved LPC214x SPI driver, now it uses IRQs, it implements the
+ new SPI device driver model.
+- NEW: Improved AT91SAM7 SPI driver, now it uses IRQs and DMAs, it implements
+ the new SPI device driver model.
+- NEW: New LPC11xx SPI driver, updated the LPCXpresso demo to use the SPI.
+- NEW: New LPC13xx SPI driver, updated the LPCXpresso demo to use the SPI.
+- NEW: Added a simple STM32 ADC demo under ./testhal/STM32/ADC.
+- NEW: Added a simple STM32 CAN demo under ./testhal/STM32/CAN.
+- NEW: Added a simple STM32 PWM demo under ./testhal/STM32/PWM.
+- NEW: Added a simple STM32 SPI demo under ./testhal/STM32/SPI.
+- NEW: More assertions added to the kernel for improved bug fixing.
+- NEW: New kernel hooks: SYSTEM_TICK_EVENT_HOOK(), SYSTEM_HALT_HOOK().
+- NEW: Added board files for the Olimex STM32-H103.
+- NEW: New kernel APIs chSysGetIdleThread() and chThdGetTicks(), the new
+ APIs are simple macros so there is no footprint overhead.
+- NEW: Added a generic BaseFileStream interface for future File System
+ implementations or integrations (untested and not sure if it will stay or
+ change).
+- NEW: Added to the documentation more notes about interrupt handlers in
+ the ARM7 port.
+- NEW: Modified some tests in order to bring back code coverage to 100%
+ in all modules except chdebug.c. Added a test case covering binary
+ semaphores.
+- OPT: The fix to the bug 3075544 considerably improved the threads creation
+ benchmarks score.
+- OPT: Speed optimizations to the STM32 SPI driver, greatly improved latency.
+- OPT: Speed optimizations to the STM32 ADC driver.
+- CHANGE: The API chThdInit() has been renamed to chThdCreateI() in order to
+ make clear it is usable from interrupt handlers.
+- CHANGE: The mailboxes macros chMBSize(), chMBGetEmpty(), chMBGetFull(),
+ chMBPeek() have been renamed to chMBSizeI(), chMBGetFreeCountI(),
+ chMBGetUsedCountI(), chMBPeekI().
+- CHANGE: The queue APIs chQSize(), chQSpace(), chIQIsEmpty(), chIQIsFull(),
+ chOQIsEmpty(), chOQIsFull() have been renamed to chQSizeI(), chQSpaceI(),
+ chIQIsEmptyI(), chIQIsFullI(), chOQIsEmptyI(), chOQIsFullI().
+- CHANGE: The event APIs chEvtPend() and chEvtClear() have been renamed
+ to chEvtAddFlags() and chEvtClearFlags() for consistency and correct
+ English. Changed the macro chEvtIsListening() in chEvtIsListeningI().
+- CHANGE: Added a parameter to the PWM driver callbacks, the pointer to the
+ driver itself.
+- CHANGE: Added a parameter to the UART driver callbacks, the pointer to the
+ driver itself.
+- CHANGE: In the UART driver now an error does not automatically brings the
+ receiver in UART_RX_IDLE state, the receive operation continues unless
+ explicitly stopped in the error callback handler. This considerably
+ simplifies the low level driver code.
+- CHANGE: Removed a spurious trailing ; after the WORKING_AREA() macro
+ declaration in several ports. The ; should go after the macro invocation.
+- CHANGE: Modified the STM32 ADC driver to use the new DMA infrastructure.
+- CHANGE: Modified the STM32 SPI driver to use the new DMA infrastructure.
+- CHANGE: Added DMA cleanup code to the STM32 dmaInit() function.
+- CHANGE: Simplified preprocessor conditions in the STM32 serial driver.
+- CHANGE: Renamed most of the STM32 HAL settings macro names in order to
+ make names more consistent.
+ NOTE: ****** Make sure to use a mcuconf.h file taken from ******
+ ****** this version in your project. ******
+- CHANGE: Renamed the existing system hooks by adding the _HOOK suffix to
+ the name in order to make names more consistent.
+ NOTE: ****** Make sure to use a chconf.h file taken from ******
+ ****** this version in your project. ******
+- CHANGE: Extensive documentation improvements, fixed terminology in the
+ events related documentation and articles.
+- CHANGE: The documentation is no more included in the distribution, the
+ file ./documentation.html redirects to the online documentation page
+ that contains *much* better documents.
+ Note that it is still possible to generate the local documentation using
+ Doxygen, the procedure is very simple and described in ./docs/readme.txt.
+
+*** 2.1.1 ***
+- FIX: Fixed insufficient stack size for idle thread (bug 3033624)(backported
+ to 2.0.3).
+- FIX: Fixed misspelled word in some chioch.h and chstreams.h macros (bug
+ 3031534)(backported to 2.0.3).
+- FIX: Fixed wrong macro check in the STM32 SPI driver (bug 3028562)(backported
+ to 2.0.3).
+- FIX: Fixed invalid context restore in MSP430 port (bug 3027975)(backported
+ to 2.0.2).
+- FIX: Fixed STM32 vectors file (bug 3026528)(backported to 2.0.2).
+- FIX: Fixed race condition in STM32 SPI driver (bug 3025854)(backported to
+ 2.0.2).
+- FIX: Fixed H_LOCK and H_UNLOCK redefined with CH_USE_MALLOC_HEAP (bug
+ 3025549)(backported to 2.0.2).
+- FIX: Added option to enforce the stack alignment to 32 or 64 bits in the
+ Cortex-Mx port (bug 3025133)(backported to 2.0.2).
+- NEW: Centralized DMA macros in the STM32 HAL.
+- NEW: New UART device driver model, this device driver allows unbuffered,
+ callback driven access to UART-type devices.
+- NEW: UART device driver for STM32 and UART demo application under
+ ./testhal/STM32/UART.
+- NEW: Added friendly interrupt vectors names to the STM32 HAL (change request
+ 3023944).
+- NEW: Added support for SPI3 in the STM32 HAL.
+- CHANGE: Redeclared the IRQ handlers in the various STM32 drivers using the
+ new friendly vector names.
+- CHANGE: Moved the STM32 HAL stess test application under
+ ./testhal/STM32/_stress_test.
+- CHANGE: Removed the option -mabi=apcs-gnu from all the Cortex-Mx demos. The
+ option is not compatible with the 64 bits stack alignment now default in
+ the Cortex-Mx port. Note that the 64 bits alignment has a cost both as
+ performance and as space but it is the "standard".
+- OPT: Small speed optimization in the STM32 SPI driver.
+- OPT: Optimized DMA clearing in STM32 ADC and SPI drivers, there was no need
+ to read/modify/write the IFCR DMA register, it is write only.
+- Fixed various documentation errors.
+
+*** 2.1.0 ***
+- FIX: Fixed notification order in input queues (bug 3020708)(backported in
+ 2.0.1).
+- FIX: Fixed non functional CH_CURRP_REGISTER_CACHE option in the Cortex-M3
+ port (bug 3020702)(backported in 2.0.1).
+- FIX: Fixed non functional CH_DBG_ENABLE_STACK_CHECK option in the Cortex-M3
+ caused by GCC 4.5.0, the fix also improves the context switch performance
+ because GCC 4.5.0 apparently was generating useless instructions within the
+ very critical context switch code (bug 3019738)(backported in 2.0.1).
+- FIX: Fixed insufficient stack space assigned to the idle thread in
+ Cortex-M3 port (bug 3019594)(backported in 2.0.1).
+- FIX: Fixed missing check in chIQReadTimeout() and chIQWriteTimeout() (bug
+ 3019158)(backported in 2.0.1).
+- FIX: Fixed instability in Mutexes subsystem (bug 3019099)(backported
+ in 2.0.1).
+- FIX: Fixed broken AVR port (bug 3016619)(backported in 2.0.0).
+- FIX: Fixed assertion in adcStop() (bug 3015109)(backported in 2.0.0).
+- NEW: Merged the new unified STM8 port, now the port supports both the
+ Cosmic and Raisonance compilers.
+- NEW: Added an STM8-DISCOVERY demo, the demo can be compiled with both the
+ Cosmic and Raisonance compilers under the STDV IDE. Performance reports
+ have been added for both compilers.
+ NOTE: The Raisonance compiler seems to have problems in debugging under
+ the STDV IDE, if you need to debug using the Raisonance compiler
+ consider using the RIDE7 IDE instead.
+ Compiling and executing using the "release" mode under STDV works fine.
+- NEW: Added timers clock macros to the STM32 clock tree HAL driver (backported
+ in 2.0.1).
+- NEW: Added Binary Semaphores among the synchronization primitives. The new
+ subsystem is entirely implemented as macros over the existing and proven
+ Counting Semaphores thus takes no space (experimental).
+- NEW: Added a simplified SPI driver for AT91SAM7 devices, contributed by
+ Alexander (experimental).
+- NEW: Added FatFs demos for AT91SAM7S and AT91SAM7X, contributed by
+ Alexander (experimental).
+- OPT: Simplified the test suite code, now it is smaller.
+- Reorganized the documentation, now the description of the device drivers
+ implementation is under the HAL module instead of the Ports module.
+
+*** 1.5.9 ***
+- FIX: Fixed STM8 baud rate setup error (bug 3010990).
+- FIX: Fixed STM8 UART3 driver (bug 3009145).
+- NEW: Added a STM8_ENABLE_WFI_IDLE option to the STM8 port, the default
+ is FALSE.
+- OPT: Small size optimization in the semaphores subsystem.
+- OPT: Improvements in the STM8 port, the code is now smaller and generally
+ faster, also saved few bytes of RAM.
+- Added explicit casts in chevents.h, chqueues.h, chqueues.c in order to
+ silence some warnings on a specific compiler.
+- Added a section in chconf.h where redefine the port-related configuration
+ parameters, also added notes into the documentation about this.
+
+*** 1.5.8 ***
+- FIX: Fixed missing files from ST library zip file (bug 3006629).
+- NEW: Added a demo for the AT91SAM7S256 and board files for the Olimex
+ SAM7-P256. The demo has been contributed by Alexander Kozaruk.
+- Fixed some wrong paths into the demos readme files.
+- Formatting fixes to the port templates.
+- Added notes about copyright assignment to the documentation. Fixed some
+ problems in the licensing FAQ page.
+- Added documentation article about events in ChibiOS/RT.
+
+*** 1.5.7 ***
+- FIX: Fixed missing SPI driver reinitialization in the MMC driver (bug
+ 3005628)(backported in 1.4.4).
+- FIX: Fixed wrong inclusion order of board.h and halconf.h into hal.h
+ (bug 3005041)(backported in 1.4.4).
+- FIX: Fixed wrong GPIO ports size in the STM8 PAL driver (bug 3001528).
+- NEW: Improved clock initialization for the STM32, now it is possible to
+ configure the clock using any clock source and any HSE frequency.
+- NEW: The STM32 clock tree parameters and checks are now calculated into
+ a separate file in order to support multiple clock trees for different
+ sub-families of the STM32 platform.
+- NEW: Added separated clock trees for the STM32 LD/MD/HD sub-family and
+ the CL sub-family. Now the selection of the sub-family is done in the
+ board.h file, there is no more the need to put -DSTM32F10X_xx into
+ the makefile.
+- NEW: Added the palSetBusMode() capability to the STM8 PAL driver.
+- NEW: Added the palSetBusMode() capability to the LPC11xx and LPC13xx
+ PAL drivers.
+- NEW: Updated the STM32 FW Library files to latest version 3.3.0.
+- CHANGE: Renamed the STM32, STM8, LPC214x, AT91SAM7x, MSP430 and simulators
+ PAL configuration structures to PALConfig, it is better to have the same
+ name for this structure in all ports (like for all the other drivers).
+- CHANGE: Modified the linker scripts in the ARM demos in order to increase
+ compatibility with the CodeSourcery toolchain.
+- Tested the STM8 port with the latest RKit-STM8_2.28.10.0092. It works but
+ the new compiler shows a slight performance regression except in one
+ test case.
+- Added credits page to the documentation, improved the article regarding
+ timings.
+- Performed another documentation revision cycle, fixed more bad English and
+ few errors.
+
+*** 1.5.6 ***
+- FIX: Fixed centralized ARM makefile (bug 2992747)(backported in 1.4.3).
+- FIX: Fixed write problems in MMC_SPI driver (bug 2991714)(backported in
+ 1.4.3).
+- FIX: Fixed wrong macros in chioch.h (bug 2989468).
+- FIX: Fixed wrong macro check in serial.h (bug 2989459)(backported in 1.4.3).
+- NEW: Added a ROMCONST macro in chtypes.h, this macro must be used for
+ constant that must be placed in code space, it should not be assumed that
+ the "const" keyword does that. Note that this macro is not used to place
+ constants in different address spaces (AVR) because it is assumed that a
+ pointer to a ROMCONST variable is compatible with a normal pointer.
+- NEW: AT91SAM7 HAL support for the DGBU UART peripheral, as SD3.
+- NEW: Introduced a new macro CH_FAST_IRQ_HANDLER() for the declaration of
+ fast interrupt handlers on those architectures that support them.
+- OPT: Internal optimization in the serial driver, it now is a bit smaller
+ and uses less RAM (all architectures).
+- CHANGE: Modified the STM32 FatFs demo, now it spawns a command shell or
+ the serial port SD2, type "help" for the available commands. More commands
+ can be easily added.
+- CHANGE: Renamed the chCoreFree() function in chCoreStatus() because it
+ might be mistaken for a function that frees memory.
+- CHANGE: All ARM demos makefiles now defaults to arm-none-eabi- GNU
+ toolchains because the latest YAGARTO now uses that setting. It is still
+ possible to use arm-elf- toolchains by editing the TRGT variable in the
+ makefiles.
+- Various documentation fixes, added new articles covering debugging under
+ ChibiOS/RT, OS integration, OS stop and restart. Updated the article about
+ interrupt handlers to cover also fast interrupt sources, updated the article
+ about the OS porting.
+- Long overdue test code cleanup and documentation.
+- Added new test cases, now the coverage is again up to 100% except for the
+ debug module that would require triggering system terminating tests (panics),
+ the uncovered code is minimal, extremely simple and working anyway.
+- ChibiOS/RT has been successfully verified with the latest GCC 4.5.0.
+
+*** 1.5.5 ***
+- FIX: Removed some "dead" code in the old ARMv7-M files (there are new
+ ones, see below).
+- NEW: LPC13xx support, drivers (Serial, PAL, HAL), demo and reports.
+- NEW: Added statistic info to the lwIP demo.
+- CHANGE: Renamed LPC111x port and platform in LPC11xx, minor fixes to the
+ platform header files.
+- CHANGE: Small documentation fixes and improvements.
+- OPT: New Cortex-M3 port code, *huge* performance improvements in all the
+ context switching related benchmarks (up to 18% depending on the benchmark).
+ The new code does no more require the use of the PendSV vector that is
+ thus available to the user, it also saves four RAM bytes for each thread
+ in the system. The old code is still available as a fall back option while
+ the new one is being hardened by peer review and time, the two ports are
+ perfectly interchangeable.
+
+*** 1.5.4 ***
+- FIX: Fixed broken CH_CURRP_REGISTER_CACHE option in the ARM7 port (bug
+ 2973365).
+- FIX: Fixed missing memory recovery on thread reference release in
+ chRegNextThread() (bug 2971878).
+- FIX: Fixed wrong thread state macro in STM32/spi_lld.c (bug 2968142).
+- NEW: New unified ARM Cortex-Mx port, this port supports both the ARMv6M
+ and ARMv7-M architecture (Cortex-M0/M1/M3/M4 so far). The new port also
+ allow to easily add to new Cortex-M implementations by simply adding a
+ parameters file (cmparams.h).
+- NEW: Embedded Artists LPCxpresso Base Board support files added.
+- NEW: LPC111x support, drivers (Serial, PAL, HAL) and demo.
+- NEW: The port layer now can "capture" the implementation of individual
+ scheduler API functions in order to provide architecture-optimized
+ versions. This is done because further scheduler optimizations are
+ becoming increasingly pointless without considering architecture and
+ compiler related constraints.
+- NEW: Added support for the STM8 large memory model to the STM8 port. Now
+ the assembler port code is totally inlined and the chcoreasm.asm file has
+ been removed.
+- NEW: Added RIDE7 project files to the STM32 demo under a ./ride7
+ subdirectory, this should make things easier for RIDE7 users. The normal
+ makefile is still available of course.
+- NEW: New articles and guides in the documentation.
+- NEW: Documentation improvements, now the description goes on top of each
+ page, doxygen defaulted it in the middle, not exactly the best for
+ readability. Improved many descriptions of the various subsystems. Fixed
+ a misplaced page (STM8 port).
+- OPT: Optimization on the interface between scheduler and port layer, now
+ the kernel is even smaller and the context switch performance improved
+ quite a bit on all the supported architectures.
+- OPT: Simplified the implementation of chSchYieldS() and made it a macro.
+ The previous implementation was probably overkill and took too much space
+ even if a bit faster.
+- CHANGE: Modified the Cortex-M3 port to be a more generic Cortex-Mx port,
+ changes were required to the startup code and the port code because the
+ reduced instruction set of the Cortex-M0 (there are two code paths now,
+ both optimized).
+- CHANGE: Modified the SysTick initialization for STM32 to use the system
+ clock rather than the external clock.
+- CHANGE: Exiting from a chCondWaitTimeout() because a timeout now does not
+ re-acquire the mutex, ownership is lost.
+- CHANGE: The module documentation has been moved from the kernel.dox file
+ to the various source code files in order to make it easier to maintain
+ and double as source comments.
+- CHANGE: Updated CMSIS files to version 1.3 and fixed the warnings in there,
+ again...
+
+*** 1.5.3 ***
+- FIX: Removed C99-style variables declarations (bug 2964418)(backported
+ in 1.4.2).
+- FIX: Fixed missing reschedule in chEvtSignal() (bug 2961208)(backported
+ in 1.4.2).
+- NEW: Added STM8 port and demo, the demo targets the Raisonance REva board
+ with STM8S208RB piggyback.
+- NEW: Enhanced the kernel size report to cover more cases.
+- NEW: Improvements to the documentation.
+- OPT: Minor optimizations in the "compact" code path.
+
+*** 1.5.2 ***
+- FIX: Fixed wrong UART deinitialization sequence in LPC214x serial driver
+ (bug 2953985)(backported in 1.4.1).
+- FIX: Fixed wrong PINSEL2 offset into lpc214x.h (bug 2953981)(backported
+ in 1.4.1).
+- FIX: Fixed invalid UART-related macro in the LPC214x HAL (bug 2953195)
+ (backported in 1.4.1).
+- FIX: Impossible to enforce alignment greater of a pointer size for heap/core
+ objects (bug 2952961).
+- FIX: Wrong prototype in template file chcore.c (bug 2951529)(backported
+ in 1.4.1).
+- NEW: Added an experimental PowerPC port targeting the SPC563M/MPC563xM
+ ST/Freescale automotive SOCs. The port passed the whole test suite but it
+ will be developed further in next releases.
+- NEW: Added core variant name macro in chcore.h and platform name in
+ hal_lld.h, the info are printed in the test report and from the "info"
+ shell command.
+- NEW: Added BOARD_NAME macro to the various board.h files.
+- NEW: Added a MemoryStream class under ./os/various.
+- CHANGE: Removed an instance of a structure without name from test.h for
+ increased portability of the test suite.
+- NEW: Added Mac OS-X support for the simulator. The Linux simulator has
+ been renamed to Posix simulator in order to include this change in a
+ single project.
+- NEW: New articles, sections and various improvements to the documentation.
+- CHANGE: Renamed the kernel header files to match the names of their source
+ files. The change was also required in order to make the names less
+ "generic" and less likely to match names in external libraries.
+
+*** 1.5.1 ***
+- FIX: Fixed insufficient stack space for the idle thread in the ARMCM3 port
+ when compiling without optimizations (bug 2946233)(backported in 1.4.1).
+- FIX: Fixed wrong notes on function chThdResume() (bug 2943160)(backported
+ in 1.4.1).
+- NEW: Implemented the concept of thread references, this mechanism ensures
+ that a dynamic thread's memory is not freed while some other thread still
+ owns a reference to the thread. Static threads are not affected by the new
+ mechanism. Two new APIs have been added: chThdAddRef() and chThdRelease().
+- NEW: Now more than one thread can be waiting in chThdWait() as long they
+ own a reference.
+- NEW: Implemented a new threads registry subsystem, the registry allows to
+ enumerate the active threads at runtime and/or from a debugger. This is
+ a preparatory step for a dedicated ChibiOS/RT debugger.
+- NEW: New chCoreFree() API that returns the core memory left.
+- NEW: Added to the simulators shell demos two new commands: threads and mem,
+ that show the currently active threads (using the new registry) and the
+ memory allocators state.
+- CHANGE: Doxygen tags cleanup in all the system code, comments are better
+ looking now.
+- CHANGE: Documentation improvements.
+
+*** 1.5.0 ***
+- FIX: Fixed missing dependencies check for CH_USE_DYNAMIC (bug 2942757)
+ (backported in 1.4.1).
+- FIX: Fixed swapped thread states descriptions (bug 2938445)(backported in
+ 1.4.1).
+- FIX_ Fixed C99-style variable declaration (bug 2938444)(backported in 1.4.1).
+- FIX: Fixed parameter check in sdStart() function (bug 2932922)(backported in
+ 1.4.0).
+- FIX: Fixed missing platform.mk file in MSP430 port (bug 2933735)(backported
+ in 1.4.0).
+- CHANGE: Removed the unnamed union from the thread and heaps structures,
+ some compilers do not support this non standard construct.
+- CHANGE: Removed the empty structures from the streams/channels headers.
+- CHANGE: Modified the thread-related constant macros to have a THD_ prefix.
+- CHANGE: Modified NULL assignments to function pointers to use an explicit
+ cast because some compilers issue warnings without the cast.
+- OPT: Speed/size optimization to the events subsystem.
+- OPT: Speed/size optimization to the mutexes subsystem.
+- OPT: Speed/size optimization to the condvars subsystem.
+- OPT: Speed/size optimization to the synchronous messages subsystem.
+- NEW: Added support for STM32/HD/CL UART4 and UART5, thanks Egon for the
+ patch.
+
+*** 1.3.8 ***
+- FIX: Fixed dequeuing in lifo_remove() function (bug 2928142).
+- FIX: Fixed spurious character generation in MSP430 serial driver (bug
+ 2926838).
+- NEW: Introduced an abstract streams interface BaseSequentialStream.
+- NEW: Added timeout specification to the I/O queues read/write primitives.
+- NEW: Added support for HD and CL STM32 devices in the vectors table.
+- CHANGE: Modified the BaseChannel interface in order to make it a
+ BaseSequentialStream descendant.
+- CHANGE: Updated the serial driver model in order to expose the
+ BaseSequentialStream methods.
+- CHANGE: The behavior of the read/write primitives is changed, now the
+ functions are synchronous and do not return until the specified number of
+ bytes have been transferred or a timeout occurs, the old behavior can be
+ replicated by specifying TIME_IMMEDIATE as timeout. Another difference is
+ that specifying zero as bytes number is like specifying the largest size_t
+ plus one, zero was an illegal value before.
+- CHANGE: Simplified the LPC214x driver by removing the option to not use the
+ FIFO preload feature. Setting LPC214x_UART_FIFO_PRELOAD to 1 results in
+ the same behavior.
+- Documentation fixes and improvements, testing strategy explained.
+- Added article about waking up threads from IRQ handlers.
+
+*** 1.3.7 ***
+- FIX: Fixed duplicated definition of SPI_USE_MUTUAL_EXCLUSION (bug 2922495).
+- FIX: Fixed coverage tool hanging during execution (bug 2921120).
+- FIX: Fixed Linux simulator startup message (bug 2921012).
+- FIX: Fixed section separators comments into the HAL-related files. Now all
+ the files should use the same style.
+- NEW: Improved HAL configuration file.
+- NEW: Introduced a new, per-project, MCU configuration file mcuconf.h that
+ contains all the drivers related settings.
+- NEW: Readability improvements to the channels code.
+- NEW: Serial driver model improvements, added states management and checks,
+ added a new SD_NOISE_ERROR error event.
+- NEW: Improvements and optimizations in the various serial driver
+ implementations.
+- Documentation fixes and improvements.
+
+*** 1.3.6 ***
+- FIX: Fixed missing STM32 PWM low level driver error in platform.mk by
+ adding the driver files (bug 2913560).
+- NEW: The Linux simulator now works again, also supports the serial
+ drivers over TCP/IP and has a command line interface like the Win32
+ simulator.
+- NEW: STM32 PWM driver implementation.
+- NEW: LPC214x SPI driver implementation (SSP only, polled mode, no IRQ), this
+ driver replaces the old, not HAL compatible, SSP driver.
+- NEW: LPC214x FatFS demo added, LPC214x minimal demo removed, LPC214x "normal"
+ demo reduced to work like all the other generic demos.
+- NEW: Added custom mode settings to the STM32 PAL driver:
+ - PAL_MODE_STM32_ALTERNATE_PUSHPULL
+ - PAL_MODE_STM32_ALTERNATE_OPENDRAIN
+- NEW: Included all the board-specific files into a new directories structure
+ under ./boards, this allows to not duplicate the board files into each demo.
+- CHANGE: Changes to the PWM driver model, made it simpler.
+- CHANGE: The STM32 device drivers now no more configure the I/O pins on
+ initialization. Pins must be configured in board.h, the change was required
+ in order to support the STM32 AFIO remapping feature.
+- CHANGE: Removed the mmcsd.c driver, it is replaced by the generic MMC_SPI
+ driver present into the HAL.
+- CHANGE: Updated the GPL exception text in the documentation, this should be
+ the final text for the stable version 1.4.x.
+
+*** 1.3.5 ***
+- FIX: Fixed problem with memory core allocator (bug 2912528).
+- FIX: Fixed problem with CH_USE_MEMCORE option (bug 2912522).
+- FIX: Fixed some problems in the MMC_SPI driver (bugs 2901084 and 2901172).
+- NEW: Added a command line shell component, modified the Win32 simulator
+ in order to use the new shell. The shell can be used under any architecture,
+ it just requires an I/O channel. Custom commands can be easily added.
+- NEW: Unified the initialization of the various drivers from a single HAL
+ driver. The single drivers can be enabled or disabled from a HAL
+ configuration file halconf.h.
+- NEW: New CAN driver model.
+- NEW: New PWM driver model.
+- NEW: STM32 ADC driver implementation with DMA support.
+- NEW: STM32 CAN driver implementation.
+- NEW: Extended the support to all the SAM7X and SAM7S devices thanks to
+ code contributed by Liam Staskawicz.
+- NEW: Improvements to the AT91SAM7 startup code contributed by Liam.
+- NEW: Added test report for MSP430 running from the external high speed
+ oscillator.
+- NEW: HAL stress test for STM32 added, the demo is located under
+ ./testhal/STM32. The demo code also shows how to use the ADC, CAN and SPI
+ drivers.
+- CHANGE: Removed the MII from the standard drivers, now it is part of the
+ AT91SAM7 support, the header mii.h is still part of the HAL.
+- CHANGE: In the STM32 drivers now the DMA errors are handled by hook macros
+ rather than by events. The default action is to halt the system but users
+ are able to override this and define custom handling.
+- CHANGE: In the Cortex-M3 port, modified the NVICEnableVector() function
+ to make it clear pending interrupts.
+- CHANGE: Minor changes to the ADC driver model.
+
+*** 1.3.4 ***
+- FIX: Fixed bug in STM32 PAL port driver (bug 2897636).
+- FIX: Fixed problem with ARM-CM3 context switch when compiled at level
+ -O0 (bug 2890382).
+- FIX: Fixed wrong conditional in chschd.c (bug 2888836).
+- FIX: Fixed wrong macro in chheap.c (bug 2888833).
+- FIX: Fixed AIC initialization in AT91SAM7X support (bug 2888583).
+- NEW: New SPI (master) driver model.
+- NEW: SPI driver for STM32 implementing the new SPI driver model.
+- NEW: New ADC (streaming capable) driver model.
+- NEW: Generic MMC (over SPI) driver.
+- NEW: Added a STM32 demo that integrates the MMC driver and the FatFs
+ file system.
+- NEW: Implemented I/O redirection on a serial driver into syscalls.c, now
+ it is possible (but not recommended) to use printf()/scanf() etc. An usage
+ example is in the new MMC/FatFs demo. Note the extra -D... into the Makefile.
+- CHANGE: Moved the STM32 firmware library under ./ext, this way there is no
+ need to duplicate it in each demo program.
+- CHANGE: Moved the file stm32f10x.h from the demos to the platforms support
+ directory.
+
+*** 1.3.3 ***
+- FIX: Fixed bug in the LPC2148 PAL driver (bug 2881380).
+- FIX: Fixed bug in the AT91SAM7X PAL driver (bug 2879933).
+- NEW: New MAC and MII driver models and implementations for the AT91SAM7X.
+ Removed the old EMAC driver, updated the uIP WEB demo to use the new
+ driver model.
+- NEW: Added a simple lwIP demo (web server) for the AT91SAM7X.
+- NEW: Centralized core memory manager. This simple allocator implements a
+ sbrk()-like API: chCoreAlloc(). The other allocators now use this manager
+ in order to get memory blocks.
+- NEW: The heap allocator has been modified, now it is possible to have
+ multiple heaps. The default heap gets its memory from the new core memory
+ manager.
+- NEW: Now memory pools can optionally get new objects automatically from the
+ core memory manager.
+- NEW: Added newlib interface file syscalls.c under ./os/various for use with
+ the newest YAGARTO releases. The file provides bindings between the C
+ runtime and the core memory manager.
+- CHANGE: Because the changes in the allocators some API prototypes changed:
+ chHeapAlloc(), chHeapStatus(), chThdCreateFromHeap().
+- CHANGE: Because the changes in the allocators some configuration options
+ changed and some were removed, see the new template chconf.h file.
+- CHANGE: renamed ./demos/ARM7-AT91SAM7X-WEB-GCC in ARM7-AT91SAM7X-UIP-GCC.
+- FIX: Added the most restrictive GCC warning option to the makefiles (-Wextra)
+ and fixed some warnings in the code, mostly unused function parameters.
+
+*** 1.3.2 ***
+- FIX: Fixed GCC 4.4.x aliasing warnings (bug 2846336)(backported in stable
+ branch).
+- FIX: Modified linker scripts for GCC 4.4.x (bug 2846302)(backported in stable
+ branch).
+- FIX: Fixed the CH_OPTIMIZE_SPEED option in the CM3 port (bug 2846278)
+ (backported in stable branch).
+- FIX: Fixed GCC 4.4.x related problems in CM3 port (bug 2846162)(backported
+ in stable branch).
+- FIX: Fixed LPC214x UART problem (bug 2841088)(backported in stable branch).
+- NEW: Improved the Cortex-M3 preemption code, now less interrupt-related
+ jitter is generated and all benchmarks scores improved a bit.
+- NEW: Added new APIs chSchDoYieldS() and chThdYield().
+- MEW: Added new benchmark about RAM footprint.
+- MEW: Added new benchmark about round robin rescheduling.
+- NEW: Reorganized and rationalized the distribution tree and the
+ documentation.
+- NEW: Enhanced serial driver. The driver now supports speed change at runtime
+ and low power stop mode.
+- NEW: Serial driver removed from the kernel and added to the I/O subsystems
+ together with PAL. Note that the related API names changed their prefix from
+ chFDDxxx to sdxxx because of this.
+- NEW: Added standard CMSIS 1.2.0 support to the Cortex-M3 port. The kernel
+ does not use it (the OS uses its own optimized code) but the functionality
+ is available to the applications. The CMSIS files were patched in order
+ to correct some warnings.
+- NEW: Updated the STM32 port to use the newest ST firmware library files
+ (version 3.1.0). Note that now the ST drivers are included in the STM32
+ demo directory.
+- NEW: Improved makefiles and makefile fragments, now the paths are not fixed,
+ the fragments can be included also from projects outside the ChibiOS/RT files
+ structure by simply defining the variable ${CHIBIOS}.
+- CHANGE: Removed the CH_USE_SERIAL_FULLDUPLEX configuration option because
+ the serial driver is no more part of the kernel.
+- CHANGE: Reorganized the PAL and Serial identifiers now IOPORT1..N and
+ SD1..N rather than IOPORT_A..Z and COM1..N, some of the old names were
+ conflicting with some AVR libraries.
+
+*** 1.3.1 ***
+- FIX: Removed mention of an obsolete option from the documentation (bug
+ 2799507).
+- NEW: Abstract digital I/O ports driver (PAL), this driver defines a common
+ interface for digital I/O operations, this should help to create more
+ portable applications and, in general, make easier to work with ChibiOS/RT
+ on multiple architectures.
+- NEW: Port drivers for STM32, LPC214x, AT91SAM7X and MSP430, cleaned up the
+ initialization code in board.c. All the demos now use PAL for I/O. AVR is
+ not supported because its "sparse" registers layout, it would not be
+ efficient enough for my taste.
+- Modified the STM32 demo to use the bit definitions in the ST header file,
+ removed the bit definitions in board.h and stm32_serial.h.
+- Documentation section reorganization and fixes.
+- Changed the STM32 demo stack sizes, it was incorrectly adjusted in version
+ 1.3.0 but it did not create problems (not a bug).
+
+*** 1.3.0 ***
+- FIX: Fixed regression in MinGW demo (bug 2745153)(backported in stable
+ branch).
+- FIX: Fixed problem with the timeout constant TIME_IMMEDIATE, added a
+ specific test in the test suite (bug 2755170)(backported in stable branch).
+- FIX: Fixed a problem in semaphores test case #2 (bug 2755195)(backported
+ in stable branch).
+- FIX: Removed unused list functions (bug 2755230)(backported in stable
+ branch).
+- FIX: Added license notice to several files (bug 2772160)(backported in
+ stable branch).
+- FIX: Found new instances of the obsolete function chSysGetTime() in the
+ C++ wrapper and in the WEB demo (bug 2772237)(backported in stable branch).
+- FIX: Fixed macro in test.h (bug 2781176)(backported in stable branch).
+- FIX: Fixed sequence assertion in test.c (bug 2789377)(backported in stable
+ branch).
+- FIX: Fixed test_cpu_pulse() incorrect behavior (bug 2789383)(backported in
+ stable branch).
+- FIX: Fixed missing volatile modifier for p_time field in Thread structure
+ (bug 2789501)(backported in stable branch).
+- FIX: Fixed C99-style variable declarations (bug 2792919)(backported in
+ stable branch).
+- FIX: Fixed instance of obsolete CH_USE_TERMINATE option in the C++ wrapper
+ (bug 2796065)(backported in stable branch).
+- FIX: Insufficient stack allocated to the C++ LPC2148 demo (bug 2796069)
+ (backported in stable branch).
+- FIX: Fixed errors in events test case (bug 2796081)(backported in stable
+ branch).
+- NEW: Abstract I/O Channels mechanism introduced. This mechanism allows to
+ access I/O resources through a standard interface and hides implementation
+ details. The existing serial drivers were modified to offer a standard
+ channel interface to the applications (the old APIs are retained as macros).
+- NEW: The I/O queues code was improved, now there are 2 separate structures:
+ InputQueue and OutputQueue. There are some changes in the queue APIs
+ in order to make them more symmetrical and functional. Improved the queues
+ documentation. Some of the changes were needed in order to support the new
+ channels mechanism as a backend for queued serial drivers.
+- NEW: Static initializers macros introduced for most kernel objects. The
+ static initializers allow to not have to chXXXInit() any object and save some
+ code space. The initialization functions are retained in order to allow
+ initialization of dynamic objects and re-initializations.
+- NEW: Added more test cases in order to improve the test suite code coverage
+ (it was 74% in version 1.2.0, it is now close to 100%).
+- NEW: Added test cases for the improved queues and serial drivers.
+- NEW: Added a code coverage analysis application under ./tests/coverage.
+- NEW: Added the test suite documentation to the general documentation.
+- NEW: Added a new "naked" context switch benchmark that better defines the
+ real context switch time, previous benchmarks introduced too much overhead
+ to the measurement. The STM32 performs the context switch in under 1.48uS.
+- NEW: Improved priority inheritance test cases.
+- NEW: Added architecture name strings to the port code.
+- NEW: Linux x86 simulator demo added. It is still work in progress.
+- CHANGE: Removed the half duplex queues and half duplex serial drivers because
+ it was never extensively tested. The code is still available but not as part
+ of the kernel.
+- CHANGE: Removed the chMsgSendWithEvent() function. It is rarely used and
+ the functionality can be re-created with a compound atomic operation. Also
+ removed the CH_USE_MESSAGES_EVENT configuration option.
+- CHANGE: Modified the test suite assertions in order to save RAM on the AVR
+ targets. The test suite now uses much less string space.
+- CHANGE: Removed the CH_USE_SERIAL_HALFDUPLEX, CH_USE_QUEUES_TIMEOUT,
+ CH_USE_QUEUES_HALFDUPLEX, CH_USE_SEMAPHORES_TIMEOUT configuration options.
+- CHANGE: Made CH_DBG_THREADS_PROFILING default to TRUE in all demos because
+ the changes to the function test_cpu_pulse().
+- CHANGE: Increased main stack size to 1KiB for all the ARMx demos, 2KiB for
+ the C++ LPC2148 demo. This should make things easier for unexperienced
+ users.
+
+*** 1.2.0 ***
+- Added license exception text to the 1.2.0 branch.
+- FIX: Fixed serious AVR regression (bug 2731578).
+- FIX: Fixed build failure when CH_USE_MUTEXES=FALSE (bug 2730706).
+- FIX: Removed reference to an obsolete function (bug 2731661).
+- Full test cycle and test reports updated.
+- Small fixes to the documentation.
+
+*** 1.1.3unstable ***
+- FIX: Fixed makefile in STM32 demo, this bug was reported fixed in
+ version 1.1.2 but it was still there (bug 2686451).
+- FIX: Fixed makefile in MSP430 demo (bug 2700690).
+- FIX: Fixed thumb mode build error in AT91SAM7X demos (bug 2700695).
+
+*** 1.1.2unstable ***
+- FIX: Fixed priority inheritance problem with condvars (bug 2674756) and
+ added a specific test case to the test suite (backported in stable branch).
+- FIX: Fixed a problem in time ranges (bug 2680425)(backported in stable
+ branch).
+- FIX: Build error with option CH_DBG_FILL_THREADS (bug 2683965).
+- FIX: Fixed a wrong parameter check in chVTSetI() and chThdSleep()
+ (bug 2679155).
+- FIX: Build error with options CH_USE_NESTED_LOCKS && !CH_OPTIMIZE_SPEED
+ (bug 2678928).
+- FIX: Removed unused chSysPuts() macro (bug 2672678).
+- FIX: Renamed function chSysInTimeWindow() as chTimeIsWithin() and renamed
+ the macro chSysGetTime() in chTimeNow(), the old names are still recognized
+ but marked as deprecated (fixes the bug 2678953 but goes a bit further by
+ introducing a new API category "Time").
+- FIX: Fixed makefile problems in the AT91SAM7X256 and STM32 demos (bugs
+ 2686347 and 2686451).
+- FIX: Fixed AT91SAM7X256 EMAC driver (bug 2686349).
+- FIX: Fixed small some errors in the documentation (bug 2692510).
+- OPT: Small optimization to the Cortex-M3 thread startup code, improved thread
+ related performance scores and smaller code.
+- OPT: Alternative, non-inlined and more compact, implementations for
+ port_lock() and port_unlock() in the Cortex-M3 port when CH_OPTIMIZE_SPEED
+ is FALSE.
+- OPT: Improved ready list and priority ordered lists code, some space saved,
+ better context switch performance.
+- Modified the test thread function to return the global test result flag.
+- Removed testcond.c|h and moved the test cases into testmtx.c. Mutexes and
+ condvars have to be tested together.
+- Added architecture diagram to the documentation.
+- Removed from the documentation some references to long gone functions...
+
+*** 1.1.1unstable ***
+- FIX: Fixed a problem into the STACK_ALIGN() macro (backported in stable
+ branch).
+- FIX: Fixed a problem with a wrong declaration of the PLL structure in the
+ file lpc214x.h (backported in stable branch).
+- FIX: Fixed build problem with the C++ demo (bug 2687489).
+- FIX: Removed EMAC driver from the AT91SAM7X256 demo makefile (bug 2686347).
+- FIX: Removed C++ wrapper from the STM32 demo makefile (bug 2686451).
+- FIX: Fixed a problem with some event APIs not showing in the documentation
+ (backported in stable branch).
+- FIX: Fixed wrong assertions in chThdWait() and chHeapFree() (backported in
+ stable branch).
+- FIX: Fixed @file tag in sam7x_serial.c (bug 2788573) (backported in stable
+ branch).
+- FIX: Fixed a small problem in the chcore.c template file.
+- NEW: Mailboxes (asynchronous messages) subsystem and test cases added.
+- NEW: Most APIs with a timeout specification now accept the constant
+ TIME_IMMEDIATE (-1) that triggers an immediate timeout when trying to enter
+ a sleep state.
+- NEW: Mode flexible debug configuration options, removed the old CH_USE_DEBUG
+ and CH_USE_TRACE. Replaced with CH_DBG_ENABLE_CHECKS, SCH_DBG_ENABLE_ASSERTS,
+ CH_DBG_ENABLE_TRACE and CH_DBG_FILL_THREADS.
+- NEW: Added a debug option CH_DBG_THREADS_PROFILING for threads profiling.
+ A field into the Thread structure counts the consumed time. The information
+ is not used into the kernel, it is meant for debugging.
+- NEW: Added a debug option CH_DBG_ENABLE_STACK_CHECK for stack overflow
+ checking. The check is not performed in the kernel but in the port code.
+ Currently only the ARM7 and ARMCM3 ports implements it.
+- NEW: Unified makefiles for ARM7, ARMCM3 MSP430 projects, the new makefiles
+ share a common part making them easier to maintain. Also reorganized the
+ demo-specific part of the makefile, now it is easier to configure and the
+ option can be overridden from outside.
+- CHANGE: Changed the chSemFastWaitS() macro in chSemFastWaitI() and
+ chSemGetCounter() in chSemGetCounterI().
+- CHANGE: Removed the port_puts() function from the port templates. It was not
+ implemented on all ports.
+- Improvements to the test suite, added a new level of indirection that allows
+ to make tests depend on the configuration options without have to put #ifs
+ into the test main module. New benchmarks about semaphores and mutexes.
+
+*** 1.1.0unstable ***
+- FIX: Modified the default value for the STM32 HSI setup it was 1, it should
+ be 0x10 (backported in stable branch).
+- FIX: Removed an obsolete constant (P_SUSPENDED) from thread.h (backported in
+ stable branch).
+- FIX: Removed unused field mp_grow in the MemoryPool structure (backported in
+ stable branch).
+- NEW: Added to the STM32 demo makefile an option to build ChibiOS/RT with the
+ full STM32 FWLib 2.03. **NOTE**, except for the makefile option, the
+ library is not used by the OS nor required (backported in stable branch).
+- NEW: Better separation between the port code and the system APIs, now an
+ architecture-specific "driver" contains all the port related code.
+ Port functions/macros are no more directly exposed as APIs to the user code.
+- NEW: Added a configuration option to enable nested system locks/unlocks.
+- NEW: Improved the interrupt handlers related code. Now interrupts are
+ handled in a very similar way in every architecture. See the "Concepts"
+ section and the "Writing interrupt handlers under ChibiOS/RT" article in the
+ documentation.
+- NEW: Added the chEvtSignal() and chEvtSignalI() APIs that allows direct
+ thread signaling, much more efficient that chEvtBroadcast() when the target
+ is a known single thread.
+- NEW: Added a configuration option that enables the priority enqueuing on
+ semaphores. It is defaulted to off because usually semaphores are used for
+ I/O related tasks without hard realtime requirements.
+- NEW: Now the all the options in chconf.h and the various driver headers
+ can be overridden externally, for example from within the Makefile.
+ The options are no mode a simple define but a define with an assigned
+ TRUE/FALSE value within an #ifndef block.
+- NEW: Idle thread hook macro added to the configuration file.
+- NEW: Changed the ARM7 and Cortex-M3 startup files, now the action when
+ the main() function returns can be overridden by redefining the symbol
+ MainExitHandler.
+- OPT: Improved ARM7 thumb port code, thanks to some GCC tricks involving
+ registers usage now the kernel is much smaller, faster and most OS APIs
+ use less RAM in stack frames (note, this is an ARM7 thumb mode specific
+ optimization).
+- CHANGE: Now the API chThdSetPriority() returns the old priority instead
+ of void.
+- CHANGE: Modified the signature of the chMsgSendWithEvent() API, it now uses
+ a more efficient event signaling method.
+- CHANGE: Removed the field p_tid from the Thread structure and the related
+ code, this improved the thread creation scores (~2%) and saves some RAM.
+ The trace buffer field cse_tid is now populated with a simple hash of the
+ thread pointer as thread identifier.
+- CHANGE: Renamed the macros chSysIRQEnter() and chSysIRQExit() in
+ CH_IRQ_PROLOGUE() and CH_IRQ_EPILOGUE() in order to make very clear that
+ those are not functions but inlined code. Also introduced a new macro
+ CH_IRQ_HANDLER that should be used when declaring an interrupt handler.
+- CHANGE: Renamed several internal initialization functions by removing the
+ "ch" prefix because could not be considered system APIs.
+- Improved ARM7 and Cortex-M3 support, new configuration options.
+- Introduced the concept of interrupt classes, see the documentation.
+- Introduced the concept of system states, see the documentation.
+- Huge improvements to the documentation.
+- Articles and notes previously in the wiki now merged in the general
+ documentation and updated, the wiki entries are obsolete and will be removed.
+- New application notes and articles added.
+- Added kernel size metrics to the test reports.
+- Removed the inclusion graph from the documentation because the little
+ info they add and the size of all the images. It is possible to configure
+ Doxygen to have them again (and more graph types).
+
+*** 1.0.0 ***
+- License switch, added GPL exception, see exception.txt.
+- Full test cycle and test reports updated.
+- Renamed some occurrences of "Conditional Variable" in "Condition Variable" in
+ the documentation.
+- FIX: Fixed some images in the documentation because problems when seen in
+ Internet Explorer.
+
+*** 1.0.0rc3 ***
+- FIX: Fixed a nasty regression to the timeout unified code that affected
+ some APIs since version 0.5.3. See the bug tracker for more details.
+ Added a test case about this.
+- FIX: Removed the API chThdSuspend() there was a conceptual flaw and I want
+ to think about the whole concept again before introducing something similar
+ in future. Anyway, it is possible to replicate the functionality using
+ chSchGoSleepS().
+- Fixed typos here and there.
+- Updated the states diagram in the documentation.
+
+*** 1.0.0rc2 ***
+- FIX: Removed unused variable "retaddr" from the Cortex-M3 port.
+- FIX: The macro THD_WA_SIZE was defined wrongly in the file
+ ./src/templates/chcore.h.
+- Fixed some errors in the documentation.
+
+*** 1.0.0rc1 ***
+- NEW: Added new macros CH_KERNEL_VERSION set to "1.0.0rc1", CH_KERNEL_MAJOR
+ set to 1, CH_KERNEL_MINOR set to 0, CH_KERNEL_PATCH set to 0.
+ The macros will be updated to reflect the actual kernel version number.
+- NEW: Made all the port-specific configuration settings externally
+ configurable, see the documentation.
+- FIX: Disabled the configuration option CH_USE_MESSAGES_PRIORITY from the
+ MSP430 demo, the default for this option should be off.
+- FIX: Fixed a bug that prevented the THREAD_EXT_FIELDS to be compiled into
+ the Thread structure.
+- FIX: Removed some references to deprecated APIs from the test suite.
+- FIX: Set the INT_REQUIRED_STACK configuration value for the ARM7 port to a
+ safer 0x10, it was previously 0 (correct but trimmed to specific compiler
+ settings).
+- FIX: Set the INT_REQUIRED_STACK configuration value for the AVR port to a
+ safer 32.
+- FIX: Fixed the MinGW demo in order to not use any deprecated construct.
+- Removed deprecated threads APIs: chThdCreate() and chThdCreateFast().
+- Removed deprecated events APIs: chEvtWait(), chEvtWaitTimeout(), chEvtSend(),
+ chEvtSendI(), EventMask().
+- Removed deprecated configuration feature CH_USE_EXIT_EVENT and the related
+ API chThdGetExitEventSource(). The feature can be reimplemented in user code
+ as shown by the MinGW demo.
+- Removed deprecated macros: WorkingArea(), UserStackSize(), StackAlign().
+- Added usage note into the readme of the MinGW demo.
+- Added usage notes for programmers to the ARM7 port documentation about
+ interrupt handlers.
+- Port-specific settings added to the documentation.
+- Added source browser to the documentation.
+- Fixes and improvements through the documentation.
+
+*** 0.8.3 ***
+- NEW: Introduced new API chThdSleepS() as a macro, no real changes in the
+ kernel code.
+- FIX: The MinGW simulated demo now works again after breaking in 0.8.2
+ because the changes to the macro names.
+- FIX: Adjusted the test suite stack sizes for the MinGW simulated demo, now
+ the demo passes all the tests.
+- FIX: Added fflush(stdout) to the MinGW simulation code output in order to
+ make the Eclipse console work correctly.
+- FIX: Renamed the MinGW demo main source from demo.c to main.c in order to
+ follow the pattern of all the other demos.
+- FIX: Added debug switches to the MinGW simulated demo, not it is possible to
+ debug the demo (and the kernel) inside Eclipse without a physical board.
+- Removed lots of old deprecated constructs from the MinGW simulated demo.
+ There are still some, the demo will need some rework before version 1.0.0.
+- Updated the C++ wrapper with the latest APIs changes and fixed some bugs.
+- Small fixes to the documentation.
+
+*** 0.8.2 ***
+- FIX: Included the files that were missing from version 0.8.1 distribution.
+- FIX: Duplicated sections in the documentation removed.
+- FIX: Minor problem in Cortex-M3 and AVR ports when the kernel is compiled
+ using G++.
+- NEW: Added chPoolAllocI() and chPoolFreeI() APIs in order to allow the use
+ of memory pools from interrupt handlers and timer callbacks.
+- CHANGE: Simplified the code for chThdWait(), it is now both smaller and
+ faster. Added an important usage note to the documentation of this API.
+- CHANGE: The macros WorkingArea(), UserStackSize() and StackAlign() are now
+ deprecated and will be removed in version 1.0.0. Use the new equivalents
+ WORKING_AREA(), THD_WA_SIZE() and STACK_ALIGN() instead.
+- CHANGE: Renamed the default idle thread function from _IdleThread() to
+ _idle().
+- Added to the LPC2148 and STM32 load scripts the options "ALIGN(16)
+ SUBALIGN(16)" to the flash loading section in order to enforce the alignment
+ for both the code and read only data. This is done in order to obtain more
+ accurate timings from benchmarks, those families have 16 bytes
+ prefetch buffers and are very sensitive to alignment changes.
+ You can remove those options in order to save some flash space if accurate
+ response time is not on top of your priorities, it mainly depends on your
+ requirements.
+
+*** 0.8.1 ***
+- FIX: Fixed a regression in version 0.8.0, the configuration switch
+ CH_USE_EVENTS_TIMEOUT was redefined as CH_USE_EVENT_TIMEOUT and this broke
+ the code using events timeouts (the LPC2148 C++ demo).
+
+*** 0.8.0 ***
+- NEW: Added condvars mechanism on top of the mutexes subsystem.
+- NEW: Improved events subsystems, now it is also possible to use it just as
+ "event flags" without have to use event handler callbacks.
+ Some new APIs were introduced:
+ * chEvtWaitOne() - Wait for a single event.
+ * chEvtWaitAny() - Wait with OR condition.
+ * chEvtWaitAll() - Wait with AND condition.
+ * chEvtDispatch() - Invokes the event handlers associated to a mask.
+ * chEvtPend() - Quickly self-pends some events.
+ * chEvtRegisterMask() - Registers a set of flags on a single source.
+ * EVENT_MASK() - Replaces the old EventMask() macro.
+ All the "wait"-type APIs have a timeout-capable variant.
+- CHANGE: The old EventMask(), chEvtWait() and chEvtWaitTimeout() APIs are
+ now deprecated and will be removed in version 1.0.0.
+- CHANGE: Modified chDbgAssert() to syntax check the condition even when the
+ CH_USE_DEBUG is disabled, it produces no code but allows to check the
+ optional code without have to compile twice.
+- FIX: Fixed a warning generated by the chEvtIsListening() macro.
+- Added new test cases to the test suite about condvars and the new events
+ APIs.
+- Added a new benchmark to the test suite (timers set/reset performance).
+- Renamed the macro fifo_init() to queue_init() because it is used to init
+ both FIFO queues and priority queues.
+- Fixes and improvements to the documentation.
+- Cleaned demo applications of old events code.
+
+*** 0.7.3 ***
+- FIX: Fixed a bug in chThdSleepUntil(), this API is no more a macro now.
+- NEW: New chThdSleepSeconds(), chThdSleepMilliseconds() and
+ chThdSleepMicroseconds() utility macros.
+- CHANGE: Zero is no more a valid time specification for the chVTSetI() API.
+- CHANGE: Removed the files chsleep.c and sleep.h.
+- CHANGE: Renamed the files chdelta.c and delta.h to chvt.c and vt.h. All the
+ system time related functions and macros are now there.
+- CHANGE: Renamed the structure DeltaList to VTList, it includes the system
+ time counter too now.
+- CHANGE: Removed the CH_USE_SYSTEMTIME and CH_USE_VIRTUAL_TIMER configuration
+ options in order to make the chconf.h file simpler. The related subsystems
+ are almost always required and are now always included.
+- Small optimization to the MSP430 serial driver.
+- Improvements to the test code, now a failed assert terminates the test case.
+- Added dependency informations handling to the MSP430 demo Makefile.
+- Removed the performance spreadsheet (it was *very* old) and added a
+ directory containing the test reports ./docs/reports. Each report shows the
+ results from the latest test run on each target.
+- Small fixes to the documentation.
+
+*** 0.7.2 ***
+- NEW: Added a serial driver to the MSP430 port, the MSP430 port now has been
+ tested on hardware and passes the test suite.
+- NEW: Added to the MSP demo program the option to run from the internal DCO
+ or from an external xtal. The default is the internal DCO.
+- NEW: Added macros to convert from seconds, milliseconds and microseconds to
+ system ticks. This improves application code portability among different
+ ports.
+- CHANGE: Modified the test suite to use the new time conversion macros.
+- CHANGE: Modified the CM3 startup file in order to implement an early
+ initialization phase: hwinit0, the late initialization phase is now named
+ hwinit1. The demo now initializes the PLL before initializing the BSS and
+ DATA segments, this greatly optimizes the system start up time.
+- NEW: Unified ARM7 startup file, it is shared by the LPC and SAM7 demo
+ projects. The new startup file implements early and late initialization
+ phases as described above for the CM3 startup file.
+ The architecture specific vector tables are now encapsulated into the
+ vectors.s files.
+- Modified the STM32 demo makefile to use the latest YAGARTO toolchain as
+ default (arm-elf-gcc).
+- Documentation improvements, added collaboration diagrams and call graphs.
+ Added a documentation-related readme under ./docs.
+
+*** 0.7.1 ***
+- NEW: New chThdInit() and chThdCreateStatic() APIs now replace the old
+ chThdCreate() and chThdCreateFast() that are thus marked as deprecated.
+ The new APIs use one less parameter and are faster.
+- NEW: New dynamic chThdCreateFromHeap() and chthdCreateFromMemoryPool() APIs.
+ The dynamic APIs are only included if the CH_USE_DYNAMIC option is specified
+ into the project configuration file.
+- NEW: Added an THREAD_EXT_EXIT macro in chconf.h to add finalization code to
+ the chThdExit() API.
+- CHANGE: chThdCreateFast() is now a macro that uses chThdCreateStatic().
+- CHANGE: chThdWait() now releases the memory allocated by
+ chThdCreateFromHeap() and chthdCreateFromMemoryPool(). Threads created
+ through the static APIs are not affected thus the behavior is backward
+ compatible.
+- CHANGE: Modified the chThdResume() API to return the resumed thread pointer
+ instead of void. This allowed few optimization into the threads creation
+ code.
+- CHANGE: The chThdGetExitEventSource() API and the CH_USE_EXIT_EVENT
+ configuration option and the are now deprecated. Use the THREAD_EXT_EXIT
+ finalization macro in order to implement a similar functionality if needed.
+- FIX: The chThdCreate() had a regression in 0.7.0, the mode parameter was
+ ignored.
+- FIX: Removed duplicated call to chHeapInit() into chSysInit().
+- FIX: Fixed a syntax error in chheap.c triggered by the CH_USE_DEBUG option.
+- Added new test cases to the test suite for the new dynamic APIs.
+- Documentation fixes.
+
+*** 0.7.0 ***
+- NEW: Memory Heap Allocator functionality added. The allocator implements a
+ first-fit strategy but there is an option that allow it to wrap the compiler
+ provided malloc() that may implement a different strategy. The heap
+ allocator is thread-safe and can use both a mutex or a semaphore as
+ internal synchronization primitive.
+- NEW: Memory Pools functionality added, this mechanism allows constant-time
+ allocation/freeing of constant-size objects. It can be used to dynamically
+ allocate kernel objects like Semaphores, Mutexes, Threads etc fully in real
+ time, of course it is also possible to manage application-defined objects.
+ The pool allocator is thread-safe.
+ It is worth remembering that the kernel is still entirely static, it does
+ not use the allocation services internally, it is up to the application
+ code to use the allocators in order to use dynamic system objects.
+ Both the allocators can be disabled and removed from the memory image.
+- NEW: Added option macros in chconf.h to add custom fields and initialization
+ code to the Thread structure.
+- FIX: Corrected the wrong definition of the chThdResumeI() macro.
+- FIX: The API chSemWaitTimeout() was missing in the documentation.
+- CHANGE: Modified the chMtxUnlock() and chMtxUnlockS() APIs to return the
+ pointer to the released mutex instead of void.
+- CHANGE: Now the chThdResume() API asserts that the thread is in PRSUSPEND
+ state rather than test it.
+- CHANGE: Removed the CH_USE_TERMINATE, CH_USE_SLEEP, CH_USE_SUSPEND and
+ CH_USE_RESUME configuration options in order to make the chconf.h file
+ simpler. The related functions are very small and almost always required.
+- CHANGE: The P_MSGBYPRIO thread option has been removed, now the threads
+ always serve messages in priority order if the CH_USE_MESSAGES_PRIORITY
+ configuration option is active.
+- Added new test cases to the test suite.
+
+*** 0.6.10 ***
+- FIX: Fixed a case-sensitiveness error in lpc214x_ssp.c, it affected only
+ linux/unix users.
+- FIX: Fixed a regression introduced in version 0.6.9, the queues benchmark
+ test case was missing from the tests list.
+- NEW: Added an option to the ARM7 ports, by specifying -DREENTRANT_LOCKS in
+ the makefile options makes the chSysLock() and chSysUnlock() become
+ reentrant. The code becomes a bit larger and slower, use it only if your
+ application really needs to invoke system API under lock.
+- NEW: Added an option to the ARM7 and CM3 makefiles to strip any unused code
+ and data from the binary file (the default is on).
+
+*** 0.6.9 ***
+- NEW: Added an option to exclude the support for the round robin scheduling,
+ this can save some extra program space and makes the context switch a bit
+ faster if the feature is not required. Threads at the same priority level
+ are still supported when the feature is disabled but the scheduling among
+ them becomes cooperative.
+- OPT: Improved reschedule time by reordering the sequence of operations,
+ now during enqueuing the ready list contains one less element. This change
+ also slightly improves the interrupt latency.
+- OPT: Optimization to the chSemReset(), reversed the order of dequeuing.
+- FIX: Fixed a bug in the chThdSetPriority() API.
+- FIX: Modified the structure names into nvic.h in order to not make them
+ collide with external libraries.
+- Added a benchmark to the test suit that measures the mass reschedule
+ performance.
+- Added a test_terminate_threads() function to the test framework.
+- Made the Cortex-M3 port preemption code more readable.
+- Added a ENABLE_WFI_IDLE option to the chcore.h file in the Cortex-M3 port,
+ setting this option to 1 enables the kernel to enter a low power mode when
+ executing the idle thread. Be careful however, this option can be not
+ compatible with some JTAG probes, it is better to enable it only on final
+ builds and not when debugging.
+
+*** 0.6.8 ***
+- FIX: Fixed a bug in the priority inheritance mechanism, the bug was only a
+ problems when the CH_USE_MESSAGES_PRIORITY was enabled, this option is
+ disabled by default in ChibiOS/RT so it should not affect any user.
+- CHANGE: The function chEvtSend() and chEvtSendI() are now renamed in
+ chEvtBroadcast() and chEvtBroadcastI(), the old names are still available
+ but are deprecated.
+- Made the default BASEPRI levels (CM3 port) configurable into chcore.h.
+- Many improvements to the documentation.
+- All the fixes and changes in this release were suggested/submitted by
+ Leon Woestenberg (thank you).
+
+*** 0.6.7 ***
+- NEW: New chThdCreateFast() API, it is a simplified form of chThdCreate()
+ that allows even faster threads creation. The new API does not support
+ the "mode" and "arg" parameters (still available in the old API).
+- OPT: Removed an unrequired initialization and made other small optimizations
+ to the chThdCreate().
+- OPT: Improvements to the test framework, now a virtual timer is used instead
+ of software loops into the benchmarks in order to have more stable results.
+- New benchmark added to the test suite.
+- Added the C++ wrapper entries to the documentation.
+- Fixed the documentation entry for the chThdCreate() API.
+- Removed redundant ifdefs from the ch.h header.
+
+*** 0.6.6 ***
+- NEW: Improved test suite, now the suite is divided in modules and the code
+ is much easier to understand. The new framework simplifies the inclusion of
+ new test cases and makes possible to verify the exact sequence and the
+ timing of test events.
+- NEW: New API chSysInTimeWindow() that checks if the current system time is
+ within the specified time window.
+- FIX: Mutex test #1 in the test suite corrected, it failed to... fail.
+- FIX: Fixed a problem in the STM32 port USART1 driver.
+- FIX: Fixed a problem in the MMC/SD driver in the LPC2148 demo.
+- Added the definitions for packed structures to the chtypes.h files.
+- Improvements to the makefiles, now each source group has its own .mk include
+ file. Now it is no more required to rewrite everything in each makefile.
+
+*** 0.6.5 ***
+- NEW: Web server demo for the AT91SAM7X256, the demo integrates the uIP
+ stack and its demo applications.
+- NEW: EMAC driver added to the AT91SAM7X port.
+- FIX: Small fix to the ARM7 startup files. It used a short jump in the reset
+ vector and that could fail in some memory configurations.
+- Documentation improvements.
+
+*** 0.6.4 ***
+- NEW: MSP430 port, the port code compiles correctly but it is not tested yet.
+ The port requires the MSPGCC toolchain.
+- NEW: Added a CH_ARCHITECTURE_xxx define to the various chcore.h files, it
+ allows to write port-dependent code.
+- NEW: Added to the documentation the technical notes about the currently
+ supported ports.
+- FIX: In the ARM7 and ARMCM3 ports chanced the bool_t base type from int8_t
+ to int32_t, this produces a bit faster and smaller code.
+ It is nowhere required the bool_t type to be one byte sized.
+- FIX: Small fixes to the template files, there were some leftovers of the old
+ type names.
+- FIX: Modified the ARM demos makefiles in order to make them more compatible
+ with GCC 4.3.0, it seems the new GCC assumes -mthumb-interworking and
+ -mabi=apcs by default, at least the builds I tested did so, now the makefiles
+ explicitly assert -mno-thumb-interworking and -mabi=apcs-gnu in order to
+ produce better code.
+- Added an Ethernet driver for AT91SAM7X EMAC, not complete yet, it will be
+ required by a uIP web server demo under ChibiOS/RT coming in some next
+ release.
+
+*** 0.6.3 ***
+- NEW: ARM Cortex-M3 port completed. The demo program targets the STM32F103
+ chip from ST Microelectronics on an Olimex STM32-P103 board.
+- FIX: Fixed a minor error in ./ports/ARM7-LPC214x/vic.h, it should not affect
+ anything.
+- FIX: Minor fix: in chThdCreate() a working area size equal to
+ UserStackSize(0) was asserted as an error when in debug mode. It is now
+ allowed.
+- FIX: Increased the stack size for the threads in the test suite to 128 bytes
+ because THUMB/THUMB2 modes seem to use a lot more stack than ARM mode.
+
+*** 0.6.2 ***
+- NEW: Added C++ wrapper around the ChibiOS/RT core APIs, now it is possible
+ to use the OS in a fully object oriented application. The wrapper offers
+ classes that encapsulate threads, semaphores, mutexes, timers etc. Normal C
+ APIs are still accessible from C++ code as usual.
+- NEW: Added a new LPC2148 demo using the new C++ wrapper, it is a good
+ example of C++ used for an embedded application. The demo does not use RTTI
+ nor standard libraries so the resulting code is very compact.
+- Enhanced the chSemSignalWait() API to return the wakeup message just like
+ the other "Wait" semaphore functions do.
+- Fixed a minor problem in the ARM7 port, the extctx structure definition was
+ missing one field, the effect was to allocate stacks 4 bytes shorter than
+ the declared size.
+- Fixed a compile time error into the chThdSleepUntil() macro.
+- Fixes in various headers to make some macros compatible with both C and C++.
+- Fixed a regression in the LPC214x minimal demo that broke interrupt
+ handling.
+- Some fixes to the doxygen documentation.
+- More work done on the ARM-CM3 port but it is still not complete.
+
+*** 0.6.1 ***
+- Removed some redundant checks from the scheduler code: improved threads
+ flyback time, reduced interrupts service time.
+- Nice scheduler speed improvement obtained by removing the 2nd parameter to
+ the chSchReadyI() API and manually assigning the message value only where
+ is really needed (very few points in the code).
+- More space savings and speed improvements obtained by removing the
+ -fno-strict-aliasing option from the makefiles, now the kernel compiles
+ without any warning even without this option.
+- Removed the -falign-functions=16 option from the AT91SAM7X demo makefiles,
+ the Atmel chip does not require it, the option is still present on the
+ LPC21xx demos. This saves significant program space.
+- Started work on ARM Cortex-M3 architecture. The target chip is the STM32F103
+ on a Olimex STM32-P103 board.
+- Added a threads state diagram to the documentation.
+- Various fixes to the doxygen documentation.
+
+*** 0.6.0 ***
+- Code refactory, all the old sized-integer definitions like LONG32, UWORD16
+ etc are now replaced by the proper definitions provided by the compiler
+ into stdint.h.
+- Code refactory, the previous system types style using a t_ in front of the
+ name has been replaced with the standard trailing _t. The system now uses
+ the size_t type defined into stddef.h. Some type names were modified in
+ order to not match commonly used type names.
+- The above changes have an impact on some API prototypes but we can't help
+ it, the changes were required because the type names were a concern for
+ some users.
+- Implemented a serial driver in the AVR port.
+- Implemented a simple HD44780 LCD driver into the AVRmega128 demo.
+- Reworked the AVR AT90CAN128 port to share the common AVR code.
+- Modified the test suite to be compatible with 8 bit micros.
+- MSVC demo dropped, it is still possible to use the MinGW demo as simulator
+ in Win32.
+- Fixed a minor error in sam7x_serial.h and lpc214x_serial.h.
+- The kernel is *unchanged* compared to version 0.5.3 except for the type
+ names but the change is important enough to make this a recommended update.
+
+*** 0.5.5 ***
+- Added an AVRmega128 port. The previous AT90CANx port is still present but
+ it will be redone after the AVRmega128 port is complete because it will
+ share most of it. The demo is very simple, it will be expanded in next
+ releases.
+- Reorganized the code of the two ARM7 ports, now all the common ARM7 code
+ is in ./ports/ARM7. This will make maintenance and new ARM7 ports much much
+ easier.
+- Simplified the directory structure under ./ports.
+- Added to the readme a section with our future plans/ideas.
+- The kernel is *unchanged* compared to version 0.5.3, just the new port and
+ the new demo were added.
+
+*** 0.5.4 ***
+- Port for Atmel AT91SAM7X256 introduced, the port should be usable also on
+ SAM7S and SAM7XC but no tests were performed. Other SAM7 processors should
+ also be usable with limited changes.
+ The demo currently just performs basic operations, will be enhanced in next
+ ChibiOS/RT releases, see the demo readme.txt file.
+- Small fix to the thumb mode IRQ code on the LPC214x port, removed some extra
+ code.
+- The kernel is *unchanged* compared to version 0.5.3, just the new port and
+ the new demo were added.
+
+*** 0.5.3 ***
+- Removed the chMsgSendTimeout() API, it was conceptually flawed because,
+ after sending a message, the sender *has* to wait for the answer or
+ the next sender in queue would receive it instead (the messages server has
+ no way to know that the sender is gone because a timeout).
+ A workaround would make the messages subsystem much heavier and this is
+ not acceptable.
+- Removed the test case for chMsgSendTimeout() from the test suite.
+- Space saved by reorganizing the timeout code into a single scheduler
+ function chSchGoSleepTimeoutS().
+- Space optimizations in the semaphores code.
+- The API chThdSleepUntil() become a macro saving some more code space.
+- Because all the above changes the kernel code (ARM) is over 700 bytes
+ smaller.
+
+*** 0.5.2 ***
+- Fixed a small problem in the main header file ch.h.
+- Small reordering in the fields of the Thread structure in order to optimize
+ the space when messages are not used.
+
+*** 0.5.1 ***
+- NEW: Priority enqueing for messages can be optionally enabled by specifying
+ the P_MSGBYPRIO option when creating a message server thread.
+ This change allows the implementation of a priority ceiling protocol into
+ message servers threads. Threads serving messages by priority and threads
+ serving messages in FIFO order can exist at the same time in the system.
+ This feature can be enabled or disabled by toggling the option
+ CH_USE_MESSAGES_PRIORITY into the chconf.h file (disabled by default, old
+ behavior).
+ Note: This option brings a small overhead when sending a message regardless
+ if in FIFO or priority order, if you don't need priority ordering for your
+ messages it is better to keep the feature disabled in chconf.h.
+- Added to the ARM demos load scripts the capability to load code in RAM
+ instead flash, the function must be marked as:
+ __attribute__((section(".ramtext")))
+ The option -mlong-calls should be specified in the makefile too or the
+ function declared with the "long-call" attribute.
+- Fixed the MSVC demo project files.
+- Fixed some syntax incompatibilities between GCC and MSVC into chmtx.c.
+
+*** 0.5.0 ***
+- NEW: Mutexes, the new mechanism provides a complete implementation of the
+ "priority inheritance" algorithm as a tool for work around the priority
+ inversion problem.
+ The Mutexes are not meant to replace the Semaphores that still are the best
+ synchronization mechanism between interrupt handlers and high level
+ code, something that Mutexes cannot do.
+ Soon an article will be added to the wiki describing pro and cons of the
+ various mechanisms and the correct use cases.
+- RT Semaphores subsystem removed, the Mutexes implements a better solution
+ for the same problem.
+- Fixed a bug in the round robin scheduling mode, see the bug tracker for
+ details and a fix for previous versions.
+- More performance improvements to the scheduler. The ready list insertion
+ sequence is now reversed, it is scanned starting from the highest priority
+ end. This has an important side effect into the chSchWakeupS() that makes
+ most of the ready list insertions happen in constant time (extraction is
+ done always in constant time).
+ The worst case is always proportional to the number of threads in the ready
+ list but the normal case is much more often constant than linear. See the
+ new benchmarks added to the test suite.
+- Added mutexes test cases and new benchmarks to the test suite.
+- Modified the test suite in order to have each test case to have the same
+ alignment enforced on functions. This is done to reduce MAM/Cache alignment
+ effects on the measurement.
+- IRQ entry/exit code is now encapsulated into two new macros, see chcore.h
+ for details.
+- All the asm code previously in chcore2.s is now inline asm code in chcore.c
+ (ARM port), chcore2.s removed.
+- Moved all the board specific definitions/code into two new files: board.c
+ and board.h. Moved all the files no more board-dependent under ports/
+ (ARM port).
+- Improved the kernel performance in THUMB mode by better exploiting MAM
+ locality in some critical functions. The context switch benchmark shows
+ 5% improved speed.
+
+*** 0.4.5 ***
+- Moved the serial IRQ handlers and VIC vectors initialization inside the
+ serial drivers. Now the serial-related code is all inside the driver.
+- Moved all the other interrupt handlers from chcore2.s into chcore.c as
+ inline asm code. The interrupt code now is faster because one less call
+ level.
+- Fixed a minor problem in chSysHalt() now it disables FIQ too and makes sure
+ to keep the processor in the state it had when it was halted.
+ Note: This is not a kernel bug but something specific with the ARM port, the
+ other ports are not affected.
+- Fixed the macro chThdResumeI(), it had a regression.
+
+*** 0.4.4 ***
+- Fixed a very important bug in the preemption ARM code, important enough to
+ make this update *mandatory*.
+ Note: This is not a kernel bug but something specific with the ARM port, the
+ other ports are not affected.
+- Fixed a nasty bug in the pure THUMB mode threads trampoline code (chcore2.s,
+ threadstart), it failed on THUMB threads returning with a "bx" instruction.
+ The bug did not affect ARM mode or THUMB with interworking mode.
+ Note: This is not a kernel bug but something specific with the ARM port, the
+ other ports are not affected.
+- Fixed a bug in chIQGetTimeout(), interrupts were not re-enabled when exiting
+ the function because a timeout. The problem affected that API only.
+- Fixed a potential problem in chSysInit(), it should not affect any past
+ application.
+- Added a chDbgAssert() API to the debug subsystem.
+- Cleaned up the kernel source code using chDbgAssert() instead of a lot of
+ "#ifdef CH_USE_DEBUG", it is much more readable now.
+- Now the threads working area is filled with a 0x55 when in debug mode, this
+ will make easier to track stack usage using a JTAG probe.
+- Added an I/O Queues benchmark to the test suite.
+- Removed the chSchTimerHandlerI() routine from chschd.c and moved it into
+ chinit.c renaming it chSysTimerHandlerI() because it is not part of the
+ scheduler.
+
+*** 0.4.3 ***
+- Size optimization in the events code, now the chEvtWait() reuses the
+ chEvtWaitTimeout() code if it is enabled.
+- Size optimization in the semaphores code, now the chSemWaitTimeout() just
+ invokes the chSemWaitTimeoutS() inside its system mutex zone. Same thing
+ done with chSemWait() and chSemWaitS().
+- Size optimization in the queues code.
+- Modified the return type of chSemWait() and chSemWaitS() from void to t_msg,
+ this allows to understand if the semaphore was signaled or reset without
+ have to access the Thread structure.
+- Added a threads create/exit/wait benchmark to the test suite, the system
+ is capable of 81712 threads started/terminated per second on the reference
+ LPC2148 board. The figure is inclusive of two context switch operations
+ for each thread.
+- Minor improvement in the LPC214x serial driver, unneeded events were
+ generated in some rare cases.
+- Fixed a chSysInit() documentation error.
+- Fixed a chEvtWaitTimeout() documentation error.
+- Added a new debug switch: CH_USE_TRACE, previously the trace functionality
+ was associated to the CH_USE_DEBUG switch.
+
+*** 0.4.2 ***
+- Added a minimal ARM7-LPC demo, you can use this one as template in order to
+ create your application. It is easier to add subsystems back to the small
+ demo than remove stuff from the large one.
+- Introduced support for "pure" THUMB mode, it is activated when all the
+ source files are compiled in THUMB mode, the option -mthumb-interworking is
+ not used in this scenario and this greatly improves both code size and
+ speed.
+ It is recommended to either use ARM mode or THUMB mode and not mix them
+ unless you know exactly what you are doing. Mixing modes is still supported
+ anyway.
+- More optimizations in the scheduler, updated the performance spreadsheet.
+- Fixed a problem with the thread working area declarations, the alignment to
+ 4 bytes boundary was not enforced. Now it is defined a new macro
+ WorkingArea(name, length) that takes care of both the allocation and the
+ alignment.
+ Example:
+ static WorkingArea(waThread1, 32);
+ It is expanded as:
+ ULONG32 waThread1[UserStackSpace(32) >> 2];
+ Now the demos use the new declaration style.
+- Fixed a small problem in sleep functions introduced in 0.4.1.
+
+*** 0.4.1 ***
+- Modified the initialization code in order to have a dedicated idle thread in
+ the system, now the main() function behaves like a normal thread after
+ executing chSysInit() and can use all the ChibiOS/RT APIs (it was required
+ to run the idle loop in previous versions).
+ Now it is also possible to use ChibiOS/RT with a single main() thread and
+ just use it for the I/O capabilities, Virtual Timers and events. Now you
+ don't have to use multiple threads if you don't really need to.
+- Added a spreadsheet in the documentation that describes the advantages
+ and disadvantages of the various optimization options (both GCC options and
+ ChibiOS/RT options), very interesting read IMO.
+- The GCC option -falign-functions=16 is now default in the Makefile, it is
+ required because of the MAM unit into the LPC chips, without this option
+ the code performance is less predictable and can change of some % points
+ depending on how the code is aligned in the flash memory, unpredictability
+ is bad for a RTOS. This option however increases the code size slightly
+ because of the alignment gaps.
+- Fine tuning in the scheduler code for improved performance, deeper
+ inlining and other small changes, about 5% better scheduler performance.
+- Increased the default system-mode stack size from 128 to 256 bytes because
+ some optimizations and the THUMB mode seem to eat more stack space.
+- Included a Makefile in the LPC2148 demo that builds in THUMB mode.
+- Const-ified a parameter in the chEvtWait() and chEvtWaitTimeout() APIs.
+- Removed the CPU register clearing on thread start, it was not really useful,
+ it is better to maximize performance instead.
+- Cleaned up the ARM port code. Now it is easier to understand.
+- Cleaned up the LPC2148 demo in main.c, it is now well documented and
+ explains everything, I assumed too much stuff to be "obvious".
+
+*** 0.4.0 ***
+- NEW, added a benchmark functionality to the test suite. The benchmark
+ measures the kernel throughput as messages per second and context switches
+ per second. The benchmark will be useful for fine tuning the compiler
+ options and the kernel itself.
+- NEW, implemented a debug subsystem, it supports debug messages and a context
+ switch circular trace buffer. The debug code can be enabled/disabled by
+ using the CH_USE_DEBUG in chconf.h.
+ The trace buffer is meant to be fetched and decoded by an external tool
+ (coming soon, it can be accessed using JTAG in the meanwhile).
+- Added new API chThdGetPriority() as a macro.
+- Implemented panic messages when CH_USE_DEBUG is enabled.
+- Added a thread identifier field to the Thread structure, it is used only
+ for debug.
+- Global variable stime modified as volatile.
+- API chSysGetTime() reimplemented as a macro.
+- Fixed a regression with the CH_CURRP_REGISTER_CACHE option.
+- Fixed a problem in the LPC2148 interrupt handling code, a spurious
+ interrupts fix recommended on the NXP data sheet proved to be a very bad
+ idea and not about real spurious interrupts also...
+- Fixed an harmless warning message in buzzer.c.
+
+*** 0.3.6 ***
+- Added SSP (SPI1) and ext.interrupts definitions to the lpc214x.h file.
+- Added SSP driver for the LPC2148.
+- Added experimental MMC/SD block driver to the LPC2148 demo in order to
+ support file systems. The driver features also events generation on card
+ insert/remove, hot plugging supported.
+- Added missing chThdSuspend() declaration in threads.h.
+
+*** 0.3.5 ***
+- Space optimization in events code.
+- Changed the behavior of chEvtWaitTimeout() when the timeout parameter is
+ set to zero, now it is consistent with all the other syscalls that have a
+ timeout option.
+- Reorganized all the kernel inline definitions into a single file (inline.h).
+- Fixed a minor problem in the interrupt initialization code for the LPC214x
+ demo, regrouped the VIC-specific code into vic.c/vic.h.
+- Fixed a bug into the LPC2148 serial driver (limited to the serial port 2).
+- Implemented HW transmit FIFO preloading in the LPC2148 serial driver in
+ order to minimize the number of interrupts generated, it is possible to
+ disable the feature and return to the old code which is a bit smaller, see
+ the configuration parameters in ./ARM7-LPC214x/GCC/lpc214x_serial.h.
+- Some more work done on the AVR port, it is almost complete but not tested
+ yet because my JTAG probe broke...
+
+*** 0.3.4 ***
+- Fixed a problem in chVTSetI().
+- New API, chVTIsArmedI(), it is a macro in delta.h.
+- New API, chThdResumeI(), it is a macro in threads.h. This function is just
+ an alias for chSchReadyI() but makes the code more readable.
+- New API, chThdSuspend(). New switch CH_USE_SUSPEND added to chconf.h.
+
+*** 0.3.3 ***
+- Modified the chVTSetI(), now for the "time" parameter can have value zero
+ with meaning "infinite". This allows all the APIs with timeout parameters
+ to be invoked with no timeout.
+- Fixes in the documentation.
+- Renamed some APIs in the "Sch" group to have an S suffix instead of I.
+
+*** 0.3.2 ***
+- Modified the chSysInit() to give the idle thread absolute priority, the
+ priority is then lowered to the minimum value into the chSysPause(). This
+ is done in order to ensure that the initializations performed into the
+ main() procedure are finished before any thread starts.
+- Added chThdSetPriority() new API.
+- Added a generic events generator timer module to the library code.
+- Modified the ARM7-LPC214x-GCC demo to show the use of the event timer.
+- Added the "#ifdef __cplusplus" stuff to the header files.
+- Removed an obsolete definition in ./src/templates/chtypes.h.
+
+*** 0.3.1 ***
+- Test program added to the demos. Telnet the MinGW and MSVS demos and type
+ "test" at the "ch>" prompt. On the LPC214x demo the test is activated by
+ pressing both the board buttons. The test performs tests on the ChibiOS/RT
+ functionalities.
+ The test code is also a good example of APIs usage and ChibiOS/RT behavior.
+- Fixed bug in chEvtWaitTimeout(), the timeout code performed an useless
+ dequeue operation.
+- Fixed a bug in chSemWaitTimeoutS() and chSemWaitTimeout(), the semaphore
+ counter was not atomically updated on a timeout condition.
+- Fixed bug on RT semaphores, the priority queuing was broken.
+- Fixed a bug in the MinGW demo, the chThdExit() code was not correctly
+ reported to the thread waiting in chThdWait().
+- Fixed a function declaration in semaphores.h.
+- Lists code moved into chlists.c from various other places optimized and
+ reorganized.
+- The list of the threads waiting in chThdWait() is now a single link list,
+ this saves some space.
+- Cleaned the template files code, the files contained some obsolete
+ declarations.
+- Code optimization in chSemWaitTimeoutS(), chSemWaitTimeout() and
+ chSemSignalWait().
+- Code optimization in chEvtSend().
+- Code optimization in chVTDoTickI().
+- Added a Semaphore pointer to the Thread structure, this allows to know on
+ which semaphore a thread is waiting on. It takes no space because it is
+ located in the union inside the Thread structure. This also allowed a minor
+ optimization inside chSemWaitTimeout() and chSemWaitTimeoutS().
+- Changed the priority type to unsigned in order to make it compatible
+ with a byte value, this is very important for 8 bits architectures.
+- Modified the MinGW and MSVS demos to use 1ms ticks instead of 10ms as
+ before.
+
+*** 0.3.0 ***
+- ChibiOS/RT goes beta.
+- Diet for the threads code, some simple APIs become macros.
+- Thread Local Storage implemented as a single API: chThdLS().
+ The API simply returns a pointer into the thread working area, see the
+ documentation on the web site.
+- Moved some documentation and images from the web site into the Doxygen
+ generated HTMLs.
+
+*** 0.2.1 ***
+- Optimizations in the RT semaphores subsystem. The support for this
+ subsystem should still be considered experimental and further changes may
+ happen in future versions.
+- Bug fix in the virtual timers handling code, now the timers can be re-armed
+ from within the callback code in order to create periodic virtual timers.
+- Modified the t_prio type in the demos to be 32bits wide instead of 16bits,
+ this results in a better code in critical sections of the kernel.
+
+*** 0.2.0 ***
+- Introduced support for ARM in thumb mode.
+- Optimized context switching when thumb-interworking is not required, one
+ less instruction.
+- Minor fixes to the ARM demo.
+
+*** 0.1.1 ***
+- Some fixes into the documentation
+- Renamed the makefiles to Makefile, upper case M.
+
+*** 0.1.0 ***
+- First alpha release
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