diff options
Diffstat (limited to 'tinyusb/hw/bsp/stm32l476disco/stm32l476disco.c')
| -rwxr-xr-x | tinyusb/hw/bsp/stm32l476disco/stm32l476disco.c | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/tinyusb/hw/bsp/stm32l476disco/stm32l476disco.c b/tinyusb/hw/bsp/stm32l476disco/stm32l476disco.c deleted file mode 100755 index b1884668..00000000 --- a/tinyusb/hw/bsp/stm32l476disco/stm32l476disco.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * 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 "stm32l4xx_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_2 -#define LED_STATE_ON 1 - -#define BUTTON_PORT GPIOA -#define BUTTON_PIN GPIO_PIN_0 -#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-, Button - __HAL_RCC_GPIOB_CLK_ENABLE(); // LED - __HAL_RCC_GPIOC_CLK_ENABLE(); // VBUS pin -} - - -/** - * @brief System Clock Configuration - * The system Clock is configured as follow : - * - * If define USB_USE_LSE_MSI_CLOCK enabled: - * System Clock source = PLL (MSI) - * SYSCLK(Hz) = 80000000 - * HCLK(Hz) = 80000000 - * AHB Prescaler = 1 - * APB1 Prescaler = 1 - * APB2 Prescaler = 2 - * MSI Frequency(Hz) = 4800000 - * LSE Frequency(Hz) = 32768 - * PLL_M = 6 - * PLL_N = 40 - * PLL_P = 7 - * PLL_Q = 4 - * PLL_R = 4 - * Flash Latency(WS) = 4 - * @param None - * @retval None - */ -static void SystemClock_Config(void) -{ - RCC_ClkInitTypeDef RCC_ClkInitStruct; - RCC_OscInitTypeDef RCC_OscInitStruct; - RCC_PeriphCLKInitTypeDef PeriphClkInitStruct; - - /* Enable the LSE Oscillator */ - RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE; - RCC_OscInitStruct.LSEState = RCC_LSE_ON; - RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; - HAL_RCC_OscConfig(&RCC_OscInitStruct); - - /* Enable the CSS interrupt in case LSE signal is corrupted or not present */ - HAL_RCCEx_DisableLSECSS(); - - /* Set tick interrupt priority, default HAL value is intentionally invalid - and that prevents PLL initialization in HAL_RCC_OscConfig() */ - HAL_InitTick((1UL << __NVIC_PRIO_BITS) - 1UL); - - /* Enable MSI Oscillator and activate PLL with MSI as source */ - RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_MSI; - RCC_OscInitStruct.MSIState = RCC_MSI_ON; - RCC_OscInitStruct.MSICalibrationValue = RCC_MSICALIBRATION_DEFAULT; - RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_11; - RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; - RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_MSI; - RCC_OscInitStruct.PLL.PLLM = 6; - RCC_OscInitStruct.PLL.PLLN = 40; - RCC_OscInitStruct.PLL.PLLP = 7; - RCC_OscInitStruct.PLL.PLLQ = 4; - RCC_OscInitStruct.PLL.PLLR = 4; - HAL_RCC_OscConfig(&RCC_OscInitStruct); - - /* Enable MSI Auto-calibration through LSE */ - HAL_RCCEx_EnableMSIPLLMode(); - - /* Select MSI output as USB clock source */ - PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_USB; - PeriphClkInitStruct.UsbClockSelection = RCC_USBCLKSOURCE_MSI; - HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct); - - /* 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_DIV1; - RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2; - HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_4); -} - -void board_init(void) -{ - SystemClock_Config(); - all_rcc_clk_enable(); - -#if CFG_TUSB_OS == OPT_OS_NONE - // 1ms tick timer - SysTick_Config(SystemCoreClock / 1000); -#elif CFG_TUSB_OS == OPT_OS_FREERTOS - // If freeRTOS is used, IRQ priority is limit by max syscall ( smaller is higher ) - //NVIC_SetPriority(USB0_IRQn, configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY ); -#endif - - /* Enable Power Clock*/ - __HAL_RCC_PWR_CLK_ENABLE(); - - /* Enable USB power on Pwrctrl CR2 register */ - HAL_PWREx_EnableVddUSB(); - - 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_FAST; - 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_FAST; - HAL_GPIO_Init(BUTTON_PORT, &GPIO_InitStruct); - - // USB - /* 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_FREQ_VERY_HIGH; - GPIO_InitStruct.Alternate = GPIO_AF10_OTG_FS; - HAL_GPIO_Init(GPIOA, &GPIO_InitStruct); - - /* Configure VBUS Pin */ - GPIO_InitStruct.Pin = GPIO_PIN_11; - GPIO_InitStruct.Mode = GPIO_MODE_INPUT; - GPIO_InitStruct.Pull = GPIO_NOPULL; - HAL_GPIO_Init(GPIOC, &GPIO_InitStruct); - - /* Enable USB FS Clock */ - __HAL_RCC_USB_OTG_FS_CLK_ENABLE(); - - // Enable VBUS sense (B device) via pin PA9 - USB_OTG_FS->GCCFG |= USB_OTG_GCCFG_VBDEN; -} - -//--------------------------------------------------------------------+ -// 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) -{ - -} |