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- /* USER CODE BEGIN Header */
- /**
- ******************************************************************************
- * @file : main.c
- * @brief : Main program body
- ******************************************************************************
- * @attention
- *
- * <h2><center>© Copyright (c) 2021 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"
-
- /* Private includes ----------------------------------------------------------*/
- /* USER CODE BEGIN Includes */
- #include "fatfs_sd.h"
- #include "string.h"
- #include "stdio.h"
-
- /* USER CODE END Includes */
-
- /* Private typedef -----------------------------------------------------------*/
- /* USER CODE BEGIN PTD */
-
- /* USER CODE END PTD */
-
- /* Private define ------------------------------------------------------------*/
- /* USER CODE BEGIN PD */
- FATFS fs;
- FATFS *pfs;
- FIL fil;
- FRESULT fres;
- DWORD fre_clust;
- uint32_t totalSpace, freeSpace;
- char buffer[100];
- /* USER CODE END PD */
-
- /* Private macro -------------------------------------------------------------*/
- /* USER CODE BEGIN PM */
-
- /* USER CODE END PM */
-
- /* Private variables ---------------------------------------------------------*/
- SPI_HandleTypeDef hspi1;
-
- UART_HandleTypeDef huart2;
-
- /* USER CODE BEGIN PV */
-
- /* USER CODE END PV */
-
- /* Private function prototypes -----------------------------------------------*/
- void SystemClock_Config(void);
- static void MX_GPIO_Init(void);
- static void MX_USART2_UART_Init(void);
- static void MX_SPI1_Init(void);
- /* USER CODE BEGIN PFP */
-
- /* USER CODE END PFP */
-
- /* Private user code ---------------------------------------------------------*/
- /* USER CODE BEGIN 0 */
- // sending to UART
- void transmit_uart(char *string){
- uint8_t len = strlen(string);
- HAL_UART_Transmit(&huart2, (uint8_t*) string, len, 200);
- }
- /* 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 */
-
- /* USER CODE END SysInit */
-
- /* Initialize all configured peripherals */
- MX_GPIO_Init();
- MX_USART2_UART_Init();
- MX_SPI1_Init();
- MX_FATFS_Init();
- /* USER CODE BEGIN 2 */
-
- /* Waiting for the Micro SD module to initialize */
- HAL_Delay(500);
-
- fres = f_mount(&fs, "", 0);
- if (fres == FR_OK) {
- transmit_uart("SD card is mounted successfully!\r\n");
- } else if (fres != FR_OK) {
- transmit_uart("SD card is not mounted!\r\n");
- }
-
- // FA_OPEN_APPEND opens file if it exists and if not then creates it,
- // the pointer is set at the end of the file for appending
- fres = f_open(&fil, "log-file.txt", FA_OPEN_APPEND | FA_WRITE | FA_READ);
- if (fres == FR_OK) {
- transmit_uart("File opened.\r\n");
- } else if (fres != FR_OK) {
- transmit_uart("File was not opened!\r\n");
- }
-
- fres = f_getfree("", &fre_clust, &pfs);
- totalSpace = (uint32_t) ((pfs->n_fatent - 2) * pfs->csize * 0.5);
- freeSpace = (uint32_t) (fre_clust * pfs->csize * 0.5);
- char mSz[12];
- sprintf(mSz, "%lu", freeSpace);
- if (fres == FR_OK) {
- transmit_uart("Free space: \r");
- transmit_uart(mSz);
- transmit_uart("\r\n");
- } else if (fres != FR_OK) {
- transmit_uart("Free space could not be determined!\r\n");
- }
-
- f_puts("Example Text\n", &fil);
-
-
- fres = f_close(&fil);
- if (fres == FR_OK) {
- transmit_uart("File is closed.\r\n");
- } else if (fres != FR_OK) {
- transmit_uart("File was not closed.\r\n");
- }
-
- /* Open file to read */
- fres = f_open(&fil, "log-file.txt", FA_READ);
- if (fres == FR_OK) {
- transmit_uart("File opened.\r\n");
- } else if (fres != FR_OK) {
- transmit_uart("File was not opened!\r\n");
- }
-
- while (f_gets(buffer, sizeof(buffer), &fil)) {
- char mRd[100];
- sprintf(mRd, "%s", buffer);
- transmit_uart(mRd);
-
- }
-
- /* Close file */
- fres = f_close(&fil);
- if (fres == FR_OK) {
- transmit_uart("File is closed.\r\n");
- } else if (fres != FR_OK) {
- transmit_uart("File was not closed.\r\n");
- }
-
- f_mount(NULL, "", 1);
- if (fres == FR_OK) {
- transmit_uart("SD card is unmounted!\r\n");
- } else if (fres != FR_OK) {
- transmit_uart("SD card was not unmounted!\r\n");
- }
-
- /* USER CODE END 2 */
-
- /* Infinite loop */
- /* USER CODE BEGIN WHILE */
- while (1)
- {
- /* 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};
-
- /** Configure the main internal regulator output voltage
- */
- __HAL_RCC_PWR_CLK_ENABLE();
- __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE2);
- /** Initializes the RCC Oscillators according to the specified parameters
- * in the RCC_OscInitTypeDef structure.
- */
- RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
- RCC_OscInitStruct.HSIState = RCC_HSI_ON;
- RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
- RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
- RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
- RCC_OscInitStruct.PLL.PLLM = 16;
- RCC_OscInitStruct.PLL.PLLN = 336;
- RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV4;
- RCC_OscInitStruct.PLL.PLLQ = 7;
- 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();
- }
- }
-
- /**
- * @brief SPI1 Initialization Function
- * @param None
- * @retval None
- */
- static void MX_SPI1_Init(void)
- {
-
- /* USER CODE BEGIN SPI1_Init 0 */
-
- /* USER CODE END SPI1_Init 0 */
-
- /* USER CODE BEGIN SPI1_Init 1 */
-
- /* USER CODE END SPI1_Init 1 */
- /* SPI1 parameter configuration*/
- hspi1.Instance = SPI1;
- hspi1.Init.Mode = SPI_MODE_MASTER;
- hspi1.Init.Direction = SPI_DIRECTION_2LINES;
- hspi1.Init.DataSize = SPI_DATASIZE_8BIT;
- hspi1.Init.CLKPolarity = SPI_POLARITY_LOW;
- hspi1.Init.CLKPhase = SPI_PHASE_1EDGE;
- hspi1.Init.NSS = SPI_NSS_SOFT;
- hspi1.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_8;
- hspi1.Init.FirstBit = SPI_FIRSTBIT_MSB;
- hspi1.Init.TIMode = SPI_TIMODE_DISABLE;
- hspi1.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLE;
- hspi1.Init.CRCPolynomial = 10;
- if (HAL_SPI_Init(&hspi1) != HAL_OK)
- {
- Error_Handler();
- }
- /* USER CODE BEGIN SPI1_Init 2 */
-
- /* USER CODE END SPI1_Init 2 */
-
- }
-
- /**
- * @brief USART2 Initialization Function
- * @param None
- * @retval None
- */
- static void MX_USART2_UART_Init(void)
- {
-
- /* USER CODE BEGIN USART2_Init 0 */
-
- /* USER CODE END USART2_Init 0 */
-
- /* USER CODE BEGIN USART2_Init 1 */
-
- /* USER CODE END USART2_Init 1 */
- huart2.Instance = USART2;
- huart2.Init.BaudRate = 115200;
- huart2.Init.WordLength = UART_WORDLENGTH_8B;
- huart2.Init.StopBits = UART_STOPBITS_1;
- huart2.Init.Parity = UART_PARITY_NONE;
- huart2.Init.Mode = UART_MODE_TX_RX;
- huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
- huart2.Init.OverSampling = UART_OVERSAMPLING_16;
- if (HAL_UART_Init(&huart2) != HAL_OK)
- {
- Error_Handler();
- }
- /* USER CODE BEGIN USART2_Init 2 */
-
- /* USER CODE END USART2_Init 2 */
-
- }
-
- /**
- * @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_GPIOC_CLK_ENABLE();
- __HAL_RCC_GPIOH_CLK_ENABLE();
- __HAL_RCC_GPIOA_CLK_ENABLE();
- __HAL_RCC_GPIOB_CLK_ENABLE();
-
- /*Configure GPIO pin Output Level */
- HAL_GPIO_WritePin(GPIOB, GPIO_PIN_6, GPIO_PIN_SET);
-
- /*Configure GPIO pin : B1_Pin */
- GPIO_InitStruct.Pin = B1_Pin;
- GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);
-
- /*Configure GPIO pin : PB6 */
- GPIO_InitStruct.Pin = GPIO_PIN_6;
- GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
- GPIO_InitStruct.Pull = GPIO_NOPULL;
- GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_MEDIUM;
- HAL_GPIO_Init(GPIOB, &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 */
-
- /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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