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author | Dean Camera <dean@fourwalledcubicle.com> | 2013-03-10 09:35:43 +0000 |
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committer | Dean Camera <dean@fourwalledcubicle.com> | 2013-03-10 09:35:43 +0000 |
commit | 0b1f33e2a26091714982447132b251496d5a48b2 (patch) | |
tree | 2500a330fc13347d63b92445bb81eb26f55f3540 /Bootloaders/MassStorage/BootloaderMassStorage.txt | |
parent | ef7b6a274c9ea66d301d0b3b0d2f6de7cee2b0d1 (diff) | |
download | lufa-0b1f33e2a26091714982447132b251496d5a48b2.tar.gz lufa-0b1f33e2a26091714982447132b251496d5a48b2.tar.bz2 lufa-0b1f33e2a26091714982447132b251496d5a48b2.zip |
Move out the Mass Storage class bootloader to the main Bootloader directory now that it is functional.
Diffstat (limited to 'Bootloaders/MassStorage/BootloaderMassStorage.txt')
-rw-r--r-- | Bootloaders/MassStorage/BootloaderMassStorage.txt | 159 |
1 files changed, 159 insertions, 0 deletions
diff --git a/Bootloaders/MassStorage/BootloaderMassStorage.txt b/Bootloaders/MassStorage/BootloaderMassStorage.txt new file mode 100644 index 000000000..032e28010 --- /dev/null +++ b/Bootloaders/MassStorage/BootloaderMassStorage.txt @@ -0,0 +1,159 @@ +/** \file + * + * This file contains special DoxyGen information for the generation of the main page and other special + * documentation pages. It is not a project source file. + */ + +/** \mainpage Mass Storage Class USB AVR Bootloader + * + * \section Sec_Compat Demo Compatibility: + * + * The following list indicates what microcontrollers are compatible with this demo. + * + * \li Series 7 USB AVRs (AT90USBxxx7) + * \li Series 6 USB AVRs (AT90USBxxx6) + * + * \section Sec_Info USB Information: + * + * The following table gives a rundown of the USB utilization of this demo. + * + * <table> + * <tr> + * <td><b>USB Mode:</b></td> + * <td>Device</td> + * </tr> + * <tr> + * <td><b>USB Class:</b></td> + * <td>Mass Storage Device</td> + * </tr> + * <tr> + * <td><b>USB Subclass:</b></td> + * <td>Bulk-Only Transport</td> + * </tr> + * <tr> + * <td><b>Relevant Standards:</b></td> + * <td>USBIF Mass Storage Standard \n + * USB Bulk-Only Transport Standard \n + * SCSI Primary Commands Specification \n + * SCSI Block Commands Specification</td> + * </tr> + * <tr> + * <td><b>Supported USB Speeds:</b></td> + * <td>Full Speed Mode</td> + * </tr> + * </table> + * + * \section Sec_Description Project Description: + * + * This bootloader enumerates to the host as a Mass Storage device, capable of reading and writing a new binary + * firmware image file, to load firmware onto the AVR. + * + * Out of the box this bootloader builds for the AT90USB1287 with an 8KB bootloader section size, and will fit + * into 8KB of bootloader space. If you wish to alter this size and/or change the AVR model, you will need to + * edit the MCU, FLASH_SIZE_KB and BOOT_SECTION_SIZE_KB values in the accompanying makefile. + * + * When the bootloader is running, the board's LED(s) will flash at regular intervals to distinguish the + * bootloader from the normal user application. + * + * \section Sec_Installation Driver Installation + * + * This bootloader uses the Mass Storage printer drivers inbuilt into all modern operating systems, thus no additional + * drivers need to be supplied for correct operation. + * + * \section Sec_HostApp Host Controller Application + * + * This bootloader is compatible with all operating systems that support the FAT12 file system format. To reprogram the + * device, overwrite a file stored on the virtual FAT filesystem with a new binary (BIN format) image. Remember to safely + * remove your device from the host using the host OS's ejection APIs, to ensure all data is correctly flushed to the + * bootloader's virtual filesystem and not cached in the OS's file system driver. + * + * The current device firmware can be read from the device by reading a file from the virtual FAT filesystem. + * + * \section Sec_API User Application API + * + * Several user application functions for FLASH and other special memory area manipulations are exposed by the bootloader, + * allowing the user application to call into the bootloader at runtime to read and write FLASH data. + * + * By default, the bootloader API jump table is located 32 bytes from the end of the device's FLASH memory, and follows the + * following layout: + * + * \code + * #define BOOTLOADER_API_TABLE_SIZE 32 + * #define BOOTLOADER_API_TABLE_START ((FLASHEND + 1UL) - BOOTLOADER_API_TABLE_SIZE) + * #define BOOTLOADER_API_CALL(Index) (void*)((BOOTLOADER_API_TABLE_START + (Index * 2)) / 2) + * + * void (*BootloaderAPI_ErasePage)(uint32_t Address) = BOOTLOADER_API_CALL(0); + * void (*BootloaderAPI_WritePage)(uint32_t Address) = BOOTLOADER_API_CALL(1); + * void (*BootloaderAPI_FillWord)(uint32_t Address, uint16_t Word) = BOOTLOADER_API_CALL(2); + * uint8_t (*BootloaderAPI_ReadSignature)(uint16_t Address) = BOOTLOADER_API_CALL(3); + * uint8_t (*BootloaderAPI_ReadFuse)(uint16_t Address) = BOOTLOADER_API_CALL(4); + * uint8_t (*BootloaderAPI_ReadLock)(void) = BOOTLOADER_API_CALL(5); + * void (*BootloaderAPI_WriteLock)(uint8_t LockBits) = BOOTLOADER_API_CALL(6); + * + * #define BOOTLOADER_MAGIC_SIGNATURE_START (BOOTLOADER_API_TABLE_START + (BOOTLOADER_API_TABLE_SIZE - 2)) + * #define BOOTLOADER_MAGIC_SIGNATURE 0xDCFB + * + * #define BOOTLOADER_CLASS_SIGNATURE_START (BOOTLOADER_API_TABLE_START + (BOOTLOADER_API_TABLE_SIZE - 4)) + * #define BOOTLOADER_MASS_STORAGE_SIGNATURE 0xDF30 + * + * #define BOOTLOADER_ADDRESS_START (BOOTLOADER_API_TABLE_START + (BOOTLOADER_API_TABLE_SIZE - 8)) + * #define BOOTLOADER_ADDRESS_LENGTH 4 + * \endcode + * + * \subsection SSec_API_MemLayout Device Memory Map + * The following illustration indicates the final memory map of the device when loaded with the bootloader. + * + * \verbatim + * +----------------------------+ 0x0000 + * | | + * | | + * | | + * | | + * | | + * | | + * | | + * | | + * | User Application | + * | | + * | | + * | | + * | | + * | | + * | | + * | | + * +----------------------------+ FLASHEND - BOOT_SECTION_SIZE + * | | + * | Bootloader Application | + * | (Not User App. Accessible) | + * | | + * +----------------------------+ FLASHEND - 96 + * | API Table Trampolines | + * | (Not User App. Accessible) | + * +----------------------------+ FLASHEND - 32 + * | Bootloader API Table | + * | (User App. Accessible) | + * +----------------------------+ FLASHEND - 8 + * | Bootloader ID Constants | + * | (User App. Accessible) | + * +----------------------------+ FLASHEND + * \endverbatim + * + * Bootloaders reporting a device release revision number of 1.00 or greater are bootloader API enabled. From the application + * the API support of the bootloader can be detected by reading the FLASH memory bytes located at address \c BOOTLOADER_MAGIC_SIGNATURE_START + * and comparing them to the value \c BOOTLOADER_MAGIC_SIGNATURE. The class of bootloader can be determined by reading the + * FLASH memory bytes located at address \c BOOTLOADER_CLASS_SIGNATURE_START and comparing them to the value \c BOOTLOADER_MASS_STORAGE_SIGNATURE. + * The start address of the bootloader can be retrieved by reading the bytes of FLASH memory starting from address \c BOOTLOADER_ADDRESS_START. + * + * \section Sec_Options Project Options + * + * The following defines can be found in this demo, which can control the demo behaviour when defined, or changed in value. + * + * <table> + * <tr> + * <td> + * None + * </td> + * </tr> + * </table> + */ + |