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/* ... */
#include "main.h"
/* ... */
/* ... */
Includes
#define BLOCK_START_ADDR 0
#define NUM_OF_BLOCKS 5
#define BUFFER_WORDS_SIZE ((BLOCKSIZE * NUM_OF_BLOCKS) >> 2)
Private define
uint32_t aTxBuffer[BUFFER_WORDS_SIZE];
uint32_t aRxBuffer[BUFFER_WORDS_SIZE];
Private variables
static void SD_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);
Private function prototypes
/* ... */
void SD_demo(void)
{
uint8_t SD_state = MSD_OK;
static uint8_t prev_status = 0;
SD_SetHint();
SD_state = BSP_SD_Init();
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"SD Initialization : FAIL.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}if (SD_state != MSD_OK) { ... }
else
{
BSP_LCD_DisplayStringAt(20, 100, (uint8_t *)"SD Initialization : OK.", LEFT_MODE);
SD_state = BSP_SD_Erase(BLOCK_START_ADDR, NUM_OF_BLOCKS);
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}while ((BSP_SD_GetCardState() != SD_TRANSFER_OK)) { ... }
if(SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"SD ERASE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}if (SD_state != MSD_OK) { ... }
else
{
BSP_LCD_DisplayStringAt(20, 115, (uint8_t *)"SD ERASE : OK.", LEFT_MODE);
Fill_Buffer(aTxBuffer, BUFFER_WORDS_SIZE, 0x22FF);
SD_state = BSP_SD_WriteBlocks(aTxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT);
while((BSP_SD_GetCardState() != SD_TRANSFER_OK))
{
}while ((BSP_SD_GetCardState() != SD_TRANSFER_OK)) { ... }
if (SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SD WRITE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}if (SD_state != MSD_OK) { ... }
else
{
BSP_LCD_DisplayStringAt(20, 130, (uint8_t *)"SD WRITE : OK.", LEFT_MODE);
SD_state = BSP_SD_ReadBlocks(aRxBuffer, BLOCK_START_ADDR, NUM_OF_BLOCKS, SD_DATATIMEOUT);
if (SD_state != MSD_OK)
{
BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"SD READ : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}if (SD_state != MSD_OK) { ... }
else
{
BSP_LCD_DisplayStringAt(20, 145, (uint8_t *)"SD READ : OK.", LEFT_MODE);
if (Buffercmp(aTxBuffer, aRxBuffer, BUFFER_WORDS_SIZE) > 0)
{
BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"SD COMPARE : FAILED.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 175, (uint8_t *)"SD Test Aborted.", LEFT_MODE);
}if (Buffercmp(aTxBuffer, aRxBuffer, BUFFER_WORDS_SIZE) > 0) { ... }
else
{
BSP_LCD_DisplayStringAt(20, 160, (uint8_t *)"SD Test : OK.", LEFT_MODE);
BSP_LCD_DisplayStringAt(20, 175, (uint8_t *)"SD can be removed.", LEFT_MODE);
}else { ... }
}else { ... }
}else { ... }
}else { ... }
}else { ... }
if(BSP_SD_IsDetected() == SD_PRESENT)
{
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"SD Connected ", LEFT_MODE);
}if (BSP_SD_IsDetected() == SD_PRESENT) { ... }
else
{
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"SD Not Connected", LEFT_MODE);
}else { ... }
while (1)
{
if(BSP_SD_IsDetected() != SD_PRESENT)
{
if(prev_status == 0)
{
BSP_SD_Init();
prev_status = 1;
BSP_LCD_SetTextColor(LCD_COLOR_RED);
BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"SD Not Connected", LEFT_MODE);
}if (prev_status == 0) { ... }
}if (BSP_SD_IsDetected() != SD_PRESENT) { ... }
else if (prev_status == 1)
{
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAt(20, BSP_LCD_GetYSize()-30, (uint8_t *)"SD Connected ", LEFT_MODE);
prev_status = 0;
}else if (prev_status == 1) { ... }
if(CheckForUserInput() > 0)
{
return;
}if (CheckForUserInput() > 0) { ... }
}while (1) { ... }
}{ ... }
/* ... */
static void SD_SetHint(void)
{
BSP_LCD_Clear(LCD_COLOR_WHITE);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_FillRect(0, 0, BSP_LCD_GetXSize(), 80);
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_SetFont(&Font24);
BSP_LCD_DisplayStringAt(0, 0, (uint8_t *)"SD", CENTER_MODE);
BSP_LCD_SetFont(&Font12);
BSP_LCD_DisplayStringAt(0, 30, (uint8_t *)"This example shows how to write", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 45, (uint8_t *)"and read data on the microSD and also", CENTER_MODE);
BSP_LCD_DisplayStringAt(0, 60, (uint8_t *)"how to detect the presence of the card", CENTER_MODE);
BSP_LCD_SetTextColor(LCD_COLOR_BLUE);
BSP_LCD_DrawRect(10, 90, BSP_LCD_GetXSize() - 20, BSP_LCD_GetYSize()- 100);
BSP_LCD_DrawRect(11, 91, BSP_LCD_GetXSize() - 22, BSP_LCD_GetYSize()- 102);
BSP_LCD_SetTextColor(LCD_COLOR_BLACK);
BSP_LCD_SetBackColor(LCD_COLOR_WHITE);
}{ ... }
/* ... */
static void Fill_Buffer(uint32_t *pBuffer, uint32_t uwBufferLenght, uint32_t uwOffset)
{
uint32_t tmpIndex = 0;
for (tmpIndex = 0; tmpIndex < uwBufferLenght; tmpIndex++ )
{
pBuffer[tmpIndex] = tmpIndex + uwOffset;
}for (tmpIndex = 0; tmpIndex < uwBufferLenght; tmpIndex++) { ... }
}{ ... }
/* ... */
static uint8_t Buffercmp(uint32_t* pBuffer1, uint32_t* pBuffer2, uint16_t BufferLength)
{
while (BufferLength--)
{
if (*pBuffer1 != *pBuffer2)
{
return 1;
}if (*pBuffer1 != *pBuffer2) { ... }
pBuffer1++;
pBuffer2++;
}while (BufferLength--) { ... }
return 0;
}{ ... }
/* ... */
/* ... */