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/**
******************************************************************************
* @file BSP/Src/sd.c
* @author MCD Application Team
* @brief This example code shows how to use the SD Driver
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F4xx_HAL_Examples
* @{
*/
/** @addtogroup BSP
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
#define BLOCK_START_ADDR 0 /* Block start address */
#define NUM_OF_BLOCKS 5 /* Total number of blocks */
#define BUFFER_WORDS_SIZE ((BLOCKSIZE * NUM_OF_BLOCKS) >> 2) /* Total data size in bytes */
#define HEADBAND_HEIGHT 64
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
uint32_t aTxBuffer[BUFFER_WORDS_SIZE];
uint32_t aRxBuffer[BUFFER_WORDS_SIZE];
/* Private function prototypes -----------------------------------------------*/
void SD_main_test(void);
void SD_DMA_test(void);
void SD_Detection(void);
static void SD_SetHint(void);
static void SD_DMA_SetHint(void);
static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset);
static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength);
/* Global extern variables ---------------------------------------------------*/
extern uint8_t SDDetectIT;
__IO uint32_t SDWriteStatus = 0, SDReadStatus = 0;
/* Private functions ---------------------------------------------------------*/
/**
* @brief SD Demo polling detection
* @param None
* @retval None
*/
void SD_demo (void)
{
SD_main_test();
while (1)
{
SD_Detection();
if(CheckForUserInput() > 0)
{
BSP_SD_DeInit();
return;
}
}
}
/**
* @brief SD Demo polling detection
* @param None
* @retval None
*/
void SD_DMA_demo (void)
{
SD_DMA_test();
while (1)
{
SD_Detection();
if(CheckForUserInput() > 0)
{
BSP_SD_DeInit();
SdmmcTest = 0;
return;
}
}
}
/**
* @brief SD Demo exti detection
* @param None
* @retval None
*/
void SD_exti_demo (void)
{
SD_main_test();
if(BSP_SD_IsDetected() != SD_PRESENT)
{
BSP_SD_Init();
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Not Connected", LEFT_MODE);
}
else
{
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Connected ", LEFT_MODE);
}
BSP_SD_ITConfig();
while (1)
{
/* Check SDDetectIT global variable state set in HAL_GPIO_EXTI_Callback in main.c */
if (SDDetectIT != 0)
{
SD_Detection();
SDDetectIT = 0;
}
if(CheckForUserInput() > 0)
{
BSP_SD_DeInit();
return;
}
}
}
/**
* @brief SD_Detection checks detection and writes msg on display
* @param None
* @retval None
*/
void SD_Detection(void)
{
static uint8_t prev_status = 2;
/* Check if the SD card is plugged in the slot */
if(BSP_SD_IsDetected() != SD_PRESENT)
{
if(prev_status != SD_NOT_PRESENT)
{
prev_status = SD_NOT_PRESENT;
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Not Connected", LEFT_MODE);
}
}
else if (prev_status != SD_PRESENT)
{
prev_status = SD_PRESENT;
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(5, BSP_LCD_GetYSize()-15, (uint8_t *)"SD Connected ", LEFT_MODE);
}
}
/**
* @brief Main part of SD Demo Test
* @param None
* @retval None
*/
void SD_main_test (void)
{
uint8_t SD_state = MSD_OK;
SD_SetHint();
SD_state = BSP_SD_Init();
if(SD_state != MSD_OK)
{
if(SD_state == MSD_ERROR_SD_NOT_PRESENT)
{
BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD shall be inserted", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD Initialization : FAIL.", LEFT_MODE);
}
BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD Initialization : OK.", LEFT_MODE);
SD_state = BSP_SD_Erase(BLOCK_START_ADDR, NUM_OF_BLOCKS);
/* Wait until SD cards are ready to use for new operation */
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD ERASE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD ERASE : OK.", LEFT_MODE);
/* Fill the buffer to write */
Fill_Buffer(aTxBuffer, BUFFER_WORDS_SIZE, 0x22FF);
SD_state = BSP_SD_WriteBlocks(aTxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, 1000);
/* Wait until SD cards are ready to use for new operation */
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD WRITE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD WRITE : OK.", LEFT_MODE);
SD_state = BSP_SD_ReadBlocks(aRxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, 1000);
/* Wait until SD cards are ready to use for new operation */
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD READ : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD READ : OK.", LEFT_MODE);
if(Buffercmp(aTxBuffer, aRxBuffer, BUFFER_WORDS_SIZE) > 0)
{
BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD COMPARE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 145, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD Test : OK.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 145, (uint8_t *)"SD can be removed.", LEFT_MODE);
}
}
}
}
}
}
/**
* @brief Main part of SD Demo Test
* @param None
* @retval None
*/
void SD_DMA_test (void)
{
uint8_t SD_state = MSD_OK;
SdmmcTest = 1;
SD_DMA_SetHint();
SD_state = BSP_SD_Init();
if(SD_state != MSD_OK)
{
if(SD_state == MSD_ERROR_SD_NOT_PRESENT)
{
BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD shall be inserted", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD Initialization : FAIL.", LEFT_MODE);
}
BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 70, (uint8_t *)"SD Initialization : OK.", LEFT_MODE);
SD_state = BSP_SD_Erase(BLOCK_START_ADDR, NUM_OF_BLOCKS);
/* Wait until SD cards are ready to use for new operation */
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD ERASE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 85, (uint8_t *)"SD ERASE : OK.", LEFT_MODE);
/* Fill the buffer to write */
Fill_Buffer(aTxBuffer, BUFFER_WORDS_SIZE, 0x22FF);
SD_state = BSP_SD_WriteBlocks_DMA(aTxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS);
/* Wait for the write process is completed */
while((SDWriteStatus == 0))
{
}
SDWriteStatus = 0;
/* Wait until SD cards are ready to use for new operation */
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD WRITE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 100, (uint8_t *)"SD WRITE : OK.", LEFT_MODE);
SD_state = BSP_SD_ReadBlocks_DMA(aRxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS);
/* Wait for the read process is completed */
while(SDReadStatus == 0)
{
}
SDReadStatus = 0;
/* Wait until SD cards are ready to use for new operation */
while(BSP_SD_GetCardState() != SD_TRANSFER_OK)
{
}
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD READ : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 115, (uint8_t *)"SD READ : OK.", LEFT_MODE);
if(Buffercmp(aTxBuffer, aRxBuffer, BUFFER_WORDS_SIZE) > 0)
{
BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD COMPARE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 145, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}
else
{
BSP_LCD_DisplayStringAt(5, 130, (uint8_t *)"SD Test : OK.", LEFT_MODE);
BSP_LCD_DisplayStringAt(5, 145, (uint8_t *)"SD can be removed.", LEFT_MODE);
}
}
}
}
}
}
/**
* @brief Display SD Demo Hint
* @param None
* @retval None
*/
static void SD_SetHint(void)
{
/* Clear the LCD */
BSP_LCD_Clear(LCD_COLOR_WHITE);
/* Set LCD Demo description */
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), HEADBAND_HEIGHT);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_SetFont(&Font16);
BSP_LCD_DisplayStringAt(0, 1, (uint8_t *)"SD", CENTER_MODE);
BSP_LCD_SetFont(&Font12);
BSP_LCD_DisplayStringAt(0, 20, (uint8_t *)"This example shows how to", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 35, (uint8_t *)"write and read on microSD", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 50, (uint8_t *)"Detect the card presence", CENTER_MODE);
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
}
/**
* @brief Display SD Demo Hint
* @param None
* @retval None
*/
static void SD_DMA_SetHint(void)
{
/* Clear the LCD */
BSP_LCD_Clear(LCD_COLOR_WHITE);
/* Set LCD Demo description */
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), HEADBAND_HEIGHT);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_SetFont(&Font16);
BSP_LCD_DisplayStringAt(0, 1, (uint8_t *)"SD DMA Mode", CENTER_MODE);
BSP_LCD_SetFont(&Font12);
BSP_LCD_DisplayStringAt(0, 20, (uint8_t *)"This example shows how to", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 35, (uint8_t *)"write and read on microSD", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 50, (uint8_t *)"Detect the card presence", CENTER_MODE);
/* Set the LCD Text Color */
BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
}
/**
* @brief Fills buffer with user predefined data.
* @param pBuffer: pointer on the buffer to fill
* @param uwBufferLenght: size of the buffer to fill
* @param uwOffset: first value to fill on the buffer
* @retval None
*/
static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset)
{
uint32_t tmpIndex = 0;
/* Put in global buffer different values */
for (tmpIndex = 0; tmpIndex < uwBufferLenght; tmpIndex++ )
{
pBuffer[tmpIndex] = tmpIndex + uwOffset;
}
}
/**
* @brief Compares two buffers.
* @param pBuffer1, pBuffer2: buffers to be compared.
* @param BufferLength: buffer's length
* @retval 1: pBuffer identical to pBuffer1
* 0: pBuffer differs from pBuffer1
*/
static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength)
{
while (BufferLength--)
{
if (*pBuffer1 != *pBuffer2)
{
return 1;
}
pBuffer1++;
pBuffer2++;
}
return 0;
}
/**
* @brief Tx Transfer completed callbacks
* @param none
* @retval None
*/
void BSP_SD_WriteCpltCallback()
{
SDWriteStatus = 1;
}
/**
* @brief Rx Transfer completed callbacks
* @param none
* @retval None
*/
void BSP_SD_ReadCpltCallback()
{
SDReadStatus = 1;
}
/**
* @}
*/
/**
* @}
*/
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