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author | joeycastillo <joeycastillo@utexas.edu> | 2021-08-30 14:42:11 -0400 |
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committer | GitHub <noreply@github.com> | 2021-08-30 14:42:11 -0400 |
commit | eb3d9b26cbda2d2612f11eb39843b221224f1fa7 (patch) | |
tree | 7a514b4d21dd0d2a324a5e1313a144f26bf20799 /tinyusb/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c | |
parent | ee9cc322d301631c9ff0751d9bed717c6492b6a5 (diff) | |
parent | b0845cc3f1a8234a30c980eccf10e44765e4e105 (diff) | |
download | Sensor-Watch-eb3d9b26cbda2d2612f11eb39843b221224f1fa7.tar.gz Sensor-Watch-eb3d9b26cbda2d2612f11eb39843b221224f1fa7.tar.bz2 Sensor-Watch-eb3d9b26cbda2d2612f11eb39843b221224f1fa7.zip |
Merge pull request #9 from joeycastillo/usb-refactor
USB refactor / Makefile simplification
Diffstat (limited to 'tinyusb/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c')
-rwxr-xr-x | tinyusb/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c b/tinyusb/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c new file mode 100755 index 00000000..0d78116b --- /dev/null +++ b/tinyusb/hw/bsp/nutiny_sdk_nuc120/nutiny_sdk_nuc120.c @@ -0,0 +1,133 @@ +/* + * The MIT License (MIT) + * + * Copyright (c) 2019 Ha Thach (tinyusb.org) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * This file is part of the TinyUSB stack. + */ + +#include "bsp/board.h" +#include "NUC100Series.h" +#include "clk.h" +#include "sys.h" + +//--------------------------------------------------------------------+ +// Forward USB interrupt events to TinyUSB IRQ Handler +//--------------------------------------------------------------------+ +void USBD_IRQHandler(void) +{ + tud_int_handler(0); +} + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM +//--------------------------------------------------------------------+ +#define LED_PORT PB +#define LED_PIN 0 +#define LED_PIN_IO PB0 +#define LED_STATE_ON 0 + +void board_init(void) +{ + SYS_UnlockReg(); + + /* Enable Internal RC 22.1184 MHz clock */ + CLK_EnableXtalRC(CLK_PWRCON_OSC22M_EN_Msk); + + /* Waiting for Internal RC clock ready */ + CLK_WaitClockReady(CLK_CLKSTATUS_OSC22M_STB_Msk); + + /* Switch HCLK clock source to Internal RC and HCLK source divide 1 */ + CLK_SetHCLK(CLK_CLKSEL0_HCLK_S_HIRC, CLK_CLKDIV_HCLK(1)); + + /* Enable external XTAL 12 MHz clock */ + CLK_EnableXtalRC(CLK_PWRCON_XTL12M_EN_Msk); + + /* Waiting for external XTAL clock ready */ + CLK_WaitClockReady(CLK_CLKSTATUS_XTL12M_STB_Msk); + + /* Set core clock */ + CLK_SetCoreClock(48000000); + + /* Enable module clock */ + CLK_EnableModuleClock(USBD_MODULE); + + /* Select module clock source */ + CLK_SetModuleClock(USBD_MODULE, 0, CLK_CLKDIV_USB(1)); + + SYS_LockReg(); + +#if CFG_TUSB_OS == OPT_OS_NONE + // 1ms tick timer + SysTick_Config(48000000 / 1000); +#endif + + GPIO_SetMode(LED_PORT, 1UL << LED_PIN, GPIO_PMD_OUTPUT); +} + +#if CFG_TUSB_OS == OPT_OS_NONE +volatile uint32_t system_ticks = 0; +void SysTick_Handler (void) +{ + system_ticks++; +} + +uint32_t board_millis(void) +{ + return system_ticks; +} +#endif + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ + +void board_led_write(bool state) +{ +#if 0 + /* this would be the simplest solution... *IF* the part supported the pin data interface */ + LED_PIN_IO = (state) ? LED_STATE_ON : (1-LED_STATE_ON); +#else + /* if the part's *PDIO pin data registers don't work, a more elaborate approach is needed */ + uint32_t irq_state = __get_PRIMASK(); + __disable_irq(); + uint32_t current = LED_PORT->DOUT & ~(1UL << LED_PIN); + LED_PORT->DOUT = current | (((state) ? LED_STATE_ON : (1UL-LED_STATE_ON)) << LED_PIN); + __set_PRIMASK(irq_state); +#endif +} + +uint32_t board_button_read(void) +{ + return 0; +} + +int board_uart_read(uint8_t* buf, int len) +{ + (void) buf; (void) len; + return 0; +} + +int board_uart_write(void const * buf, int len) +{ + (void) buf; (void) len; + return 0; +} |