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Diffstat (limited to 'STM32_bootloader/Core/Src/main.c')
| -rw-r--r-- | STM32_bootloader/Core/Src/main.c | 475 |
1 files changed, 475 insertions, 0 deletions
diff --git a/STM32_bootloader/Core/Src/main.c b/STM32_bootloader/Core/Src/main.c new file mode 100644 index 0000000..8362825 --- /dev/null +++ b/STM32_bootloader/Core/Src/main.c @@ -0,0 +1,475 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file : main.c + * @brief : Main program body + ****************************************************************************** + * @attention + * + * <h2><center>© Copyright (c) 2022 STMicroelectronics. + * All rights reserved.</center></h2> + * + * This software component is licensed by ST under BSD 3-Clause license, + * the "License"; You may not use this file except in compliance with the + * License. You may obtain a copy of the License at: + * opensource.org/licenses/BSD-3-Clause + * + ****************************************************************************** + */ +/* USER CODE END Header */ +/* Includes ------------------------------------------------------------------*/ +#include "main.h" +#include "fatfs.h" +#include "usb_device.h" + +/* Private includes ----------------------------------------------------------*/ +/* USER CODE BEGIN Includes */ +#include "usbd_core.h" +#include "led.h" +/* USER CODE END Includes */ + +/* Private typedef -----------------------------------------------------------*/ +/* USER CODE BEGIN PTD */ + +/* USER CODE END PTD */ + +/* Private define ------------------------------------------------------------*/ +/* USER CODE BEGIN PD */ +/* USER CODE END PD */ + +/* Private macro -------------------------------------------------------------*/ +/* USER CODE BEGIN PM */ + +/* USER CODE END PM */ + +/* Private variables ---------------------------------------------------------*/ + TIM_HandleTypeDef htim2; +TIM_HandleTypeDef htim5; +DMA_HandleTypeDef hdma_tim5_ch3_up; + +/* USER CODE BEGIN PV */ +extern USBD_HandleTypeDef hUsbDeviceFS; +uint32_t last_write_ts = 0; +/* USER CODE END PV */ + +/* Private function prototypes -----------------------------------------------*/ +void SystemClock_Config(void); +static void MX_GPIO_Init(void); +static void MX_DMA_Init(void); +static void MX_TIM5_Init(void); +static void MX_TIM2_Init(void); +/* USER CODE BEGIN PFP */ + +/* USER CODE END PFP */ + +/* Private user code ---------------------------------------------------------*/ +/* USER CODE BEGIN 0 */ + +static void start_app(void) { + uint32_t appJumpAddress; + void (*GoToApp)(void); + + appJumpAddress = *((volatile uint32_t*)(APP_ADDRESS + 4)); + GoToApp = (void (*)(void))appJumpAddress; + SCB->VTOR = APP_ADDRESS; + __set_MSP(*((volatile uint32_t*) APP_ADDRESS)); //stack pointer (to RAM) for USER app in this address + GoToApp(); + + while (1) {} +} + + +static void error(void) +{ + f_mount(NULL, "", 1); + HAL_FLASH_Lock(); + set_led_color(0xFF, 0x00, 0x00); + while (1) {} +} + +static void write_firmware(void) +{ + int i; + uint8_t buff[MSD_BLOCK_SIZE]; + FATFS FatFs; + FIL fil; + FRESULT fr; + UINT br = 0; + uint32_t address = APP_ADDRESS; + FLASH_EraseInitTypeDef EraseInitStruct; + uint32_t SECTORError = 0; + HAL_StatusTypeDef hres; + uint16_t value; + + fr = f_mount(&FatFs, "", 1); + if (fr) + error(); + fr = f_open(&fil, FIRMWARE_FILE, FA_READ); + if (fr) + error(); + while (1) { + fr = f_read(&fil, buff, MSD_BLOCK_SIZE, &br); + if (fr) + error(); + if (!br) break; + if ((address % MSD_BLOCK_SIZE) != 0) + error(); + EraseInitStruct.TypeErase = FLASH_TYPEERASE_PAGES; + EraseInitStruct.PageAddress = address; + EraseInitStruct.NbPages = 1; + hres = HAL_FLASHEx_Erase(&EraseInitStruct, &SECTORError); + if (hres != HAL_OK) + error(); + for (i = 0; i < br; i += 2) { + value = *(volatile uint16_t*) &buff[i]; + hres = HAL_FLASH_Program(FLASH_TYPEPROGRAM_HALFWORD, address, value); + if (hres != HAL_OK) + error(); + address += 2; + } + } + fr = f_close(&fil); + if (fr) + error(); + + fr = f_unlink(FIRMWARE_FILE); + /* + if (fr) + error(); + */ + fr = f_mount(NULL, "", 1); + if (fr) + error(); +} + +/* USER CODE END 0 */ + +/** + * @brief The application entry point. + * @retval int + */ +int main(void) +{ + /* USER CODE BEGIN 1 */ + + /* USER CODE END 1 */ + + /* MCU Configuration--------------------------------------------------------*/ + + /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ + HAL_Init(); + + /* USER CODE BEGIN Init */ + + /* USER CODE END Init */ + + /* Configure the system clock */ + SystemClock_Config(); + + /* USER CODE BEGIN SysInit */ + MX_GPIO_Init(); + MX_DMA_Init(); + MX_TIM5_Init(); + MX_TIM2_Init(); + HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1); + HAL_Delay(100); + // If IRQ not fired... + if (HAL_GPIO_ReadPin(IRQ_GPIO_Port, IRQ_Pin)) start_app(); + set_led_color(0x00, 0xFF, 0x00); + HAL_Delay(1000); + if (!HAL_GPIO_ReadPin(IRQ_GPIO_Port, IRQ_Pin)) start_app(); + /* USER CODE END SysInit */ + + /* Initialize all configured peripherals */ + MX_GPIO_Init(); + MX_USB_DEVICE_Init(); + MX_DMA_Init(); + MX_TIM5_Init(); + MX_FATFS_Init(); + MX_TIM2_Init(); + /* USER CODE BEGIN 2 */ + set_led_color(0xFF, 0xFF, 0x00); + /* + */ + + /* USER CODE END 2 */ + + /* Infinite loop */ + /* USER CODE BEGIN WHILE */ + while (1) + { + if (last_write_ts && (HAL_GetTick() - last_write_ts >= WRITE_TO_FLASH_TIME)) { + FATFS FatFs; + FRESULT fr; + f_mount(&FatFs, "", 1); + fr = f_stat(FIRMWARE_FILE, NULL); + f_mount(NULL, "", 1); + if (fr == FR_OK) { + set_led_color(0xFF, 0xFF, 0xFF); + USBD_DeInit(&hUsbDeviceFS); + write_firmware(); + set_led_color(0x00, 0x00, 0x00); + HAL_Delay(200); + //start_app(); + __disable_irq(); + while (1) { } + } else { + last_write_ts = 0; + } + } + HAL_Delay(100); + /* USER CODE END WHILE */ + + /* USER CODE BEGIN 3 */ + } + /* USER CODE END 3 */ +} + +/** + * @brief System Clock Configuration + * @retval None + */ +void SystemClock_Config(void) +{ + RCC_OscInitTypeDef RCC_OscInitStruct = {0}; + RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; + RCC_PeriphCLKInitTypeDef PeriphClkInit = {0}; + + /** Initializes the RCC Oscillators according to the specified parameters + * in the RCC_OscInitTypeDef structure. + */ + RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; + RCC_OscInitStruct.HSEState = RCC_HSE_ON; + RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV2; + RCC_OscInitStruct.HSIState = RCC_HSI_ON; + RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; + RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; + RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9; + if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) + { + Error_Handler(); + } + + /** Initializes the CPU, AHB and APB buses clocks + */ + RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK + |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2; + RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK; + RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; + RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2; + RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; + + if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) + { + Error_Handler(); + } + PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USB; + PeriphClkInit.UsbClockSelection = RCC_USBCLKSOURCE_PLL_DIV1_5; + if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK) + { + Error_Handler(); + } +} + +/** + * @brief TIM2 Initialization Function + * @param None + * @retval None + */ +static void MX_TIM2_Init(void) +{ + + /* USER CODE BEGIN TIM2_Init 0 */ + + /* USER CODE END TIM2_Init 0 */ + + TIM_ClockConfigTypeDef sClockSourceConfig = {0}; + TIM_MasterConfigTypeDef sMasterConfig = {0}; + TIM_OC_InitTypeDef sConfigOC = {0}; + + /* USER CODE BEGIN TIM2_Init 1 */ + + /* USER CODE END TIM2_Init 1 */ + htim2.Instance = TIM2; + htim2.Init.Prescaler = 0; + htim2.Init.CounterMode = TIM_COUNTERMODE_UP; + htim2.Init.Period = 39; + htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; + htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; + if (HAL_TIM_Base_Init(&htim2) != HAL_OK) + { + Error_Handler(); + } + sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL; + if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK) + { + Error_Handler(); + } + if (HAL_TIM_PWM_Init(&htim2) != HAL_OK) + { + Error_Handler(); + } + sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; + sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; + if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK) + { + Error_Handler(); + } + sConfigOC.OCMode = TIM_OCMODE_PWM1; + sConfigOC.Pulse = 19; + sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH; + sConfigOC.OCFastMode = TIM_OCFAST_DISABLE; + if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1) != HAL_OK) + { + Error_Handler(); + } + /* USER CODE BEGIN TIM2_Init 2 */ + + /* USER CODE END TIM2_Init 2 */ + HAL_TIM_MspPostInit(&htim2); + +} + +/** + * @brief TIM5 Initialization Function + * @param None + * @retval None + */ +static void MX_TIM5_Init(void) +{ + + /* USER CODE BEGIN TIM5_Init 0 */ + + /* USER CODE END TIM5_Init 0 */ + + TIM_MasterConfigTypeDef sMasterConfig = {0}; + TIM_OC_InitTypeDef sConfigOC = {0}; + + /* USER CODE BEGIN TIM5_Init 1 */ + + /* USER CODE END TIM5_Init 1 */ + htim5.Instance = TIM5; + htim5.Init.Prescaler = 0; + htim5.Init.CounterMode = TIM_COUNTERMODE_UP; + htim5.Init.Period = 107; + htim5.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; + htim5.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; + if (HAL_TIM_PWM_Init(&htim5) != HAL_OK) + { + Error_Handler(); + } + sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; + sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; + if (HAL_TIMEx_MasterConfigSynchronization(&htim5, &sMasterConfig) != HAL_OK) + { + Error_Handler(); + } + sConfigOC.OCMode = TIM_OCMODE_PWM1; + sConfigOC.Pulse = 0; + sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH; + sConfigOC.OCFastMode = TIM_OCFAST_DISABLE; + if (HAL_TIM_PWM_ConfigChannel(&htim5, &sConfigOC, TIM_CHANNEL_3) != HAL_OK) + { + Error_Handler(); + } + /* USER CODE BEGIN TIM5_Init 2 */ + + /* USER CODE END TIM5_Init 2 */ + HAL_TIM_MspPostInit(&htim5); + +} + +/** + * Enable DMA controller clock + */ +static void MX_DMA_Init(void) +{ + + /* DMA controller clock enable */ + __HAL_RCC_DMA2_CLK_ENABLE(); + + /* DMA interrupt init */ + /* DMA2_Channel2_IRQn interrupt configuration */ + HAL_NVIC_SetPriority(DMA2_Channel2_IRQn, 0, 0); + HAL_NVIC_EnableIRQ(DMA2_Channel2_IRQn); + +} + +/** + * @brief GPIO Initialization Function + * @param None + * @retval None + */ +static void MX_GPIO_Init(void) +{ + GPIO_InitTypeDef GPIO_InitStruct = {0}; + + /* GPIO Ports Clock Enable */ + __HAL_RCC_GPIOA_CLK_ENABLE(); + __HAL_RCC_GPIOD_CLK_ENABLE(); + __HAL_RCC_GPIOG_CLK_ENABLE(); + __HAL_RCC_GPIOB_CLK_ENABLE(); + + /*Configure GPIO pin Output Level */ + HAL_GPIO_WritePin(GPIOD, NOE_Pin|NWE_Pin|NE1_Pin, GPIO_PIN_SET); + + /*Configure GPIO pin Output Level */ + HAL_GPIO_WritePin(NE2_GPIO_Port, NE2_Pin, GPIO_PIN_SET); + + /*Configure GPIO pins : NOE_Pin NWE_Pin NE1_Pin */ + GPIO_InitStruct.Pin = NOE_Pin|NWE_Pin|NE1_Pin; + GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; + GPIO_InitStruct.Pull = GPIO_NOPULL; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; + HAL_GPIO_Init(GPIOD, &GPIO_InitStruct); + + /*Configure GPIO pin : NE2_Pin */ + GPIO_InitStruct.Pin = NE2_Pin; + GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; + GPIO_InitStruct.Pull = GPIO_NOPULL; + GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; + HAL_GPIO_Init(NE2_GPIO_Port, &GPIO_InitStruct); + + /*Configure GPIO pin : IRQ_Pin */ + GPIO_InitStruct.Pin = IRQ_Pin; + GPIO_InitStruct.Mode = GPIO_MODE_INPUT; + GPIO_InitStruct.Pull = GPIO_PULLUP; + HAL_GPIO_Init(IRQ_GPIO_Port, &GPIO_InitStruct); + +} + +/* USER CODE BEGIN 4 */ + +/* USER CODE END 4 */ + +/** + * @brief This function is executed in case of error occurrence. + * @retval None + */ +void Error_Handler(void) +{ + /* USER CODE BEGIN Error_Handler_Debug */ + /* User can add his own implementation to report the HAL error return state */ + __disable_irq(); + while (1) + { + } + /* USER CODE END Error_Handler_Debug */ +} + +#ifdef USE_FULL_ASSERT +/** + * @brief Reports the name of the source file and the source line number + * where the assert_param error has occurred. + * @param file: pointer to the source file name + * @param line: assert_param error line source number + * @retval None + */ +void assert_failed(uint8_t *file, uint32_t line) +{ + /* USER CODE BEGIN 6 */ + /* User can add his own implementation to report the file name and line number, + ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ + /* USER CODE END 6 */ +} +#endif /* USE_FULL_ASSERT */ |