mirror of
https://github.com/STMicroelectronics/STM32CubeF4.git
synced 2025-05-03 22:17:07 +08:00
493 lines
14 KiB
C
493 lines
14 KiB
C
/**
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******************************************************************************
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* @file BSP/Src/sd.c
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* @author MCD Application Team
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* @brief This example code shows how to use the SD Driver
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "main.h"
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/** @addtogroup STM32F4xx_HAL_Examples
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* @{
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*/
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/** @addtogroup BSP
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* @{
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*/
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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#define BLOCK_START_ADDR 0 /* Block start address */
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#define NUM_OF_BLOCKS 5 /* Total number of blocks */
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#define BUFFER_WORDS_SIZE ((BLOCKSIZE * NUM_OF_BLOCKS) >> 2) /* Total data size in bytes */
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#define HEADBAND_HEIGHT 64
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/* Private macro -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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uint32_t aTxBuffer[BUFFER_WORDS_SIZE];
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uint32_t aRxBuffer[BUFFER_WORDS_SIZE];
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__IO uint32_t writestatus, readstatus = 0;
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/* Private function prototypes -----------------------------------------------*/
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void SD_main_test(void);
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void SD_DMA_test(void);
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void SD_Detection(void);
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static void SD_SetHint(void);
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static void SD_DMA_SetHint(void);
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static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset);
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static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength);
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/* Global extern variables ---------------------------------------------------*/
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extern uint8_t SDDetectIT;
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/* Private functions ---------------------------------------------------------*/
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/**
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* @brief SD Demo polling detection
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* @param None
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* @retval None
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*/
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void SD_demo (void)
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{
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SD_SetHint();
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BSP_SD_Init();
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while(BSP_SD_IsDetected() != SD_PRESENT)
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{
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BSP_LCD_SetTextColor(LCD_COLOR_RED);
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BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Not Connected", LEFT_MODE);
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}
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BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
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BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Connected ", LEFT_MODE);
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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SD_main_test();
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while (1)
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{
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SD_Detection();
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if(CheckForUserInput() > 0)
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{
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BSP_SD_DeInit();
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return;
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}
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}
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}
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/**
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* @brief SD Demo polling detection
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* @param None
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* @retval None
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*/
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void SD_DMA_demo (void)
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{
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SD_DMA_SetHint();
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BSP_SD_Init();
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while(BSP_SD_IsDetected() != SD_PRESENT)
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{
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BSP_LCD_SetTextColor(LCD_COLOR_RED);
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BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Not Connected", LEFT_MODE);
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}
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BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
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BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Connected ", LEFT_MODE);
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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SD_DMA_test();
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while (1)
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{
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SD_Detection();
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if(CheckForUserInput() > 0)
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{
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BSP_SD_DeInit();
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SdmmcTest = 0;
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return;
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}
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}
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}
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/**
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* @brief SD Demo exti detection
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* @param None
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* @retval None
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*/
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void SD_exti_demo (void)
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{
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SD_SetHint();
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BSP_SD_Init();
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while(BSP_SD_IsDetected() != SD_PRESENT)
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{
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BSP_LCD_SetTextColor(LCD_COLOR_RED);
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BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Not Connected", LEFT_MODE);
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}
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BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
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BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Connected ", LEFT_MODE);
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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SD_main_test();
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BSP_SD_ITConfig();
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while (1)
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{
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/* Check SDDetectIT global variable state set in HAL_GPIO_EXTI_Callback in main.c */
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if (SDDetectIT != 0)
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{
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SD_Detection();
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SDDetectIT = 0;
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}
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if(CheckForUserInput() > 0)
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{
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BSP_SD_DeInit();
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return;
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}
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}
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}
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/**
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* @brief SD_Detection checks detection and writes msg on display
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* @param None
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* @retval None
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*/
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void SD_Detection(void)
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{
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static uint8_t prev_status = 2;
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/* Check if the SD card is plugged in the slot */
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if(BSP_SD_IsDetected() != SD_PRESENT)
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{
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if(prev_status != SD_NOT_PRESENT)
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{
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prev_status = SD_NOT_PRESENT;
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BSP_LCD_SetTextColor(LCD_COLOR_RED);
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BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Not Connected", LEFT_MODE);
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}
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}
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else if (prev_status != SD_PRESENT)
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{
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prev_status = SD_PRESENT;
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BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
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BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Connected ", LEFT_MODE);
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}
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}
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/**
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* @brief Main part of SD Demo Test
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* @param None
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* @retval None
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*/
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void SD_main_test (void)
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{
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uint8_t SD_state = MSD_OK;
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SD_state = BSP_SD_Init();
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if(SD_state != MSD_OK)
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{
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if(SD_state == MSD_ERROR_SD_NOT_PRESENT)
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{
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BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD shall be inserted", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD Initialization : FAIL.", LEFT_MODE);
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}
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BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD Initialization : OK.", LEFT_MODE);
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SD_state = BSP_SD_Erase(BLOCK_START_ADDR, NUM_OF_BLOCKS);
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/* Wait until SD cards are ready to use for new operation */
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while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
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{
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}
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if(SD_state != MSD_OK)
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{
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BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD ERASE : FAILED.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD ERASE : OK.", LEFT_MODE);
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/* Fill the buffer to write */
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Fill_Buffer(aTxBuffer, BUFFER_WORDS_SIZE, 0x22FF);
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SD_state = BSP_SD_WriteBlocks(aTxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT);
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/* Wait until SD cards are ready to use for new operation */
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while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
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{
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}
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if(SD_state != MSD_OK)
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{
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BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD WRITE : FAILED.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD WRITE : OK.", LEFT_MODE);
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SD_state = BSP_SD_ReadBlocks(aRxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT);
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/* Wait until SD cards are ready to use for new operation */
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while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
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{
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}
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if(SD_state != MSD_OK)
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{
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BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD READ : FAILED.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD READ : OK.", LEFT_MODE);
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if(Buffercmp(aTxBuffer, aRxBuffer, BUFFER_WORDS_SIZE) > 0)
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{
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BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD COMPARE : FAILED.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 145, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD Test : OK.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 145, (uint8_t *)"SD can be removed.", LEFT_MODE);
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}
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}
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}
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}
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}
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}
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/**
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* @brief Main part of SD Demo Test
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* @param None
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* @retval None
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*/
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void SD_DMA_test (void)
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{
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uint8_t SD_state = MSD_OK;
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SdmmcTest = 1;
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SD_state = BSP_SD_Init();
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if(SD_state != MSD_OK)
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{
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if(SD_state == MSD_ERROR_SD_NOT_PRESENT)
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{
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BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD shall be inserted", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD Initialization : FAIL.", LEFT_MODE);
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}
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BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD Initialization : OK.", LEFT_MODE);
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SD_state = BSP_SD_Erase(BLOCK_START_ADDR, NUM_OF_BLOCKS);
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/* Wait until SD cards are ready to use for new operation */
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while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
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{
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}
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if(SD_state != MSD_OK)
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{
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BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD ERASE : FAILED.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD ERASE : OK.", LEFT_MODE);
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/* Fill the buffer to write */
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Fill_Buffer(aTxBuffer, BUFFER_WORDS_SIZE, 0x22FF);
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SD_state = BSP_SD_WriteBlocks_DMA(aTxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS);
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/* Wait for Tx Transfer completion */
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while (writestatus == 0)
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{
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}
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writestatus = 0;
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/* Wait until SD cards are ready to use for new operation */
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while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
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{
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}
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if(SD_state != MSD_OK)
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{
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BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD WRITE : FAILED.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD WRITE : OK.", LEFT_MODE);
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SD_state = BSP_SD_ReadBlocks_DMA(aRxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS);
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/* Wait for Rx Transfer completion */
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while (readstatus == 0)
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{
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}
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readstatus = 0;
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/* Wait until SD cards are ready to use for new operation */
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while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
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{
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}
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if(SD_state != MSD_OK)
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{
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BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD READ : FAILED.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD READ : OK.", LEFT_MODE);
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if(Buffercmp(aTxBuffer, aRxBuffer, BUFFER_WORDS_SIZE) > 0)
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{
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BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD COMPARE : FAILED.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 145, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
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}
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else
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{
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BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD Test : OK.", LEFT_MODE);
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BSP_LCD_DisplayStringAt(5, 145, (uint8_t *)"SD can be removed.", LEFT_MODE);
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}
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}
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}
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}
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}
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}
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/**
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* @brief Display SD Demo Hint
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* @param None
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* @retval None
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*/
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static void SD_SetHint(void)
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{
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/* Clear the LCD */
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BSP_LCD_Clear(LCD_COLOR_WHITE);
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/* Set LCD Demo description */
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), HEADBAND_HEIGHT);
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BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
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BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
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BSP_LCD_SetFont(&Font16);
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BSP_LCD_DisplayStringAt(0, 1, (uint8_t *)"SD", CENTER_MODE);
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BSP_LCD_SetFont(&Font12);
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BSP_LCD_DisplayStringAt(0, 20, (uint8_t *)"This example shows how to", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, 35, (uint8_t *)"write and read on microSD", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, 50, (uint8_t *)"Detect the card presence", CENTER_MODE);
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/* Set the LCD Text Color */
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BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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}
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/**
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* @brief Display SD Demo Hint
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* @param None
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* @retval None
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*/
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static void SD_DMA_SetHint(void)
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{
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/* Clear the LCD */
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BSP_LCD_Clear(LCD_COLOR_WHITE);
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/* Set LCD Demo description */
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BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
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BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), HEADBAND_HEIGHT);
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BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
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BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
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BSP_LCD_SetFont(&Font16);
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BSP_LCD_DisplayStringAt(0, 1, (uint8_t *)"SD DMA Mode", CENTER_MODE);
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BSP_LCD_SetFont(&Font12);
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BSP_LCD_DisplayStringAt(0, 20, (uint8_t *)"This example shows how to", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, 35, (uint8_t *)"write and read on microSD", CENTER_MODE);
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BSP_LCD_DisplayStringAt(0, 50, (uint8_t *)"Detect the card presence", CENTER_MODE);
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/* Set the LCD Text Color */
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BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
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BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
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}
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/**
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* @brief Fills buffer with user predefined data.
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* @param pBuffer: pointer on the buffer to fill
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* @param uwBufferLenght: size of the buffer to fill
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* @param uwOffset: first value to fill on the buffer
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* @retval None
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*/
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static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset)
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{
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uint32_t tmpIndex = 0;
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/* Put in global buffer different values */
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for (tmpIndex = 0; tmpIndex < uwBufferLenght; tmpIndex++ )
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{
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pBuffer[tmpIndex] = tmpIndex + uwOffset;
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}
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}
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/**
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* @brief Compares two buffers.
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* @param pBuffer1, pBuffer2: buffers to be compared.
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* @param BufferLength: buffer's length
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* @retval 1: pBuffer identical to pBuffer1
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* 0: pBuffer differs from pBuffer1
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*/
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static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength)
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{
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while (BufferLength--)
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{
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if (*pBuffer1 != *pBuffer2)
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{
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return 1;
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}
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pBuffer1++;
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pBuffer2++;
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}
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return 0;
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}
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/**
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* @brief BSP Tx Transfer completed callbacks
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* @param None
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* @retval None
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*/
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void BSP_SD_WriteCpltCallback(void)
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{
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writestatus = 1;
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}
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/**
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* @brief BSP Rx Transfer completed callbacks
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* @param None
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* @retval None
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*/
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void BSP_SD_ReadCpltCallback(void)
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{
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readstatus = 1;
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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