diff options
Diffstat (limited to 'tinyusb/hw/bsp/stm32f207nucleo/stm32f207nucleo.c')
| -rwxr-xr-x | tinyusb/hw/bsp/stm32f207nucleo/stm32f207nucleo.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/tinyusb/hw/bsp/stm32f207nucleo/stm32f207nucleo.c b/tinyusb/hw/bsp/stm32f207nucleo/stm32f207nucleo.c new file mode 100755 index 00000000..619c90d6 --- /dev/null +++ b/tinyusb/hw/bsp/stm32f207nucleo/stm32f207nucleo.c @@ -0,0 +1,213 @@ +/* + * 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 "../board.h" + +#include "stm32f2xx_hal.h" + +//--------------------------------------------------------------------+ +// Forward USB interrupt events to TinyUSB IRQ Handler +//--------------------------------------------------------------------+ +void OTG_FS_IRQHandler(void) +{ + tud_int_handler(0); +} + +//--------------------------------------------------------------------+ +// MACRO TYPEDEF CONSTANT ENUM +//--------------------------------------------------------------------+ + +#define LED_PORT GPIOB +#define LED_PIN GPIO_PIN_14 +#define LED_STATE_ON 1 + +#define BUTTON_PORT GPIOC +#define BUTTON_PIN GPIO_PIN_13 +#define BUTTON_STATE_ACTIVE 1 + + +// enable all LED, Button, Uart, USB clock +static void all_rcc_clk_enable(void) +{ + __HAL_RCC_GPIOA_CLK_ENABLE(); // USB D+, D- + __HAL_RCC_GPIOB_CLK_ENABLE(); // LED + __HAL_RCC_GPIOC_CLK_ENABLE(); // Button +} + +/** + * @brief System Clock Configuration + * The system Clock is configured as follow : + * System Clock source = PLL (HSE) + * SYSCLK(Hz) = 120000000 + * HCLK(Hz) = 120000000 + * AHB Prescaler = 1 + * APB1 Prescaler = 4 + * APB2 Prescaler = 2 + * HSE Frequency(Hz) = 8000000 + * PLL_M = HSE_VALUE/1000000 + * PLL_N = 240 + * PLL_P = 2 + * PLL_Q = 5 + * VDD(V) = 3.3 + * Flash Latency(WS) = 3 + * @param None + * @retval None + */ +void SystemClock_Config(void) +{ + RCC_ClkInitTypeDef RCC_ClkInitStruct; + RCC_OscInitTypeDef RCC_OscInitStruct; + + /* Enable HSE Oscillator and activate PLL with HSE as source */ + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; + RCC_OscInitStruct.HSEState = RCC_HSE_BYPASS; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; + RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; + RCC_OscInitStruct.PLL.PLLM = HSE_VALUE/1000000; + RCC_OscInitStruct.PLL.PLLN = 240; + RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2; + RCC_OscInitStruct.PLL.PLLQ = 5; + HAL_RCC_OscConfig(&RCC_OscInitStruct); + + /* Select PLL as system clock source and configure the HCLK, PCLK1 and PCLK2 + clocks dividers */ + RCC_ClkInitStruct.ClockType = (RCC_CLOCKTYPE_SYSCLK | RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2); + RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; + RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; + RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4; + RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; + HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_3); +} + +void board_init(void) +{ + SystemClock_Config(); + + #if CFG_TUSB_OS == OPT_OS_NONE + // 1ms tick timer + SysTick_Config(SystemCoreClock / 1000); + #endif + + + all_rcc_clk_enable(); + + GPIO_InitTypeDef GPIO_InitStruct; + + // LED + GPIO_InitStruct.Pin = LED_PIN; + GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; + GPIO_InitStruct.Pull = GPIO_PULLUP; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; + HAL_GPIO_Init(LED_PORT, &GPIO_InitStruct); + + board_led_write(false); + + // Button + GPIO_InitStruct.Pin = BUTTON_PIN; + GPIO_InitStruct.Mode = GPIO_MODE_INPUT; + GPIO_InitStruct.Pull = GPIO_PULLDOWN; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_HIGH; + HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct); + + /* Configure DM DP Pins */ + GPIO_InitStruct.Pin = (GPIO_PIN_11 | GPIO_PIN_12); + GPIO_InitStruct.Mode = GPIO_MODE_AF_PP; + GPIO_InitStruct.Pull = GPIO_NOPULL; + GPIO_InitStruct.Speed = GPIO_SPEED_HIGH; + GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS; + HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); + + /* Configure VBUS Pin */ + GPIO_InitStruct.Pin = GPIO_PIN_9; + GPIO_InitStruct.Mode = GPIO_MODE_INPUT; + GPIO_InitStruct.Pull = GPIO_NOPULL; + HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); + + /* Configure ID pin */ + GPIO_InitStruct.Pin = GPIO_PIN_10; + GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; + GPIO_InitStruct.Pull = GPIO_PULLUP; + GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS; + HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); + + /* Enable USB FS Clocks */ + __HAL_RCC_USB_OTG_FS_CLK_ENABLE(); + + // Enable VBUS sense (B device) via pin PA9 + USB_OTG_FS->GCCFG &= ~USB_OTG_GCCFG_NOVBUSSENS; + USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBUSBSEN; +} + +//--------------------------------------------------------------------+ +// Board porting API +//--------------------------------------------------------------------+ + +void board_led_write(bool state) +{ + HAL_GPIO_WritePin(LED_PORT, LED_PIN, state ? LED_STATE_ON : (1-LED_STATE_ON)); +} + +uint32_t board_button_read(void) +{ + return BUTTON_STATE_ACTIVE == HAL_GPIO_ReadPin(BUTTON_PORT, BUTTON_PIN); +} + +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; +} + +#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 + +void HardFault_Handler (void) +{ + asm("bkpt"); +} + +// Required by __libc_init_array in startup code if we are compiling using +// -nostdlib/-nostartfiles. +void _init(void) +{ + +} |