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// TODO
// make it work with DMA
#include <stdio.h>
//#include "stm32f4xx_sdio.h"
#include "stm324x7i_eval_sdio_sd.h"
#include "misc.h"
#include "systick.h"
#define BLOCK_SIZE 512 /* Block Size in Bytes */
uint8_t aBuffer_Block_Rx[BLOCK_SIZE];
void sdio_init(void) {
SD_Error error = SD_Init();
printf("Init: %x\n", error);
uint8_t det = SD_Detect();
printf("Detc: %x\n", det);
if (!det) {
printf("no card detected\n");
SD_PowerOFF();
SD_DeInit();
return;
}
// read a block!
error = SD_ReadBlock(aBuffer_Block_Rx, 512, BLOCK_SIZE);
printf("ReadBlock: %d\n", error);
/*
// Check if the Transfer is finished
error = SD_WaitReadOperation();
printf("WaitReadOp: %d\n", error);
*/
uint32_t stc = sys_tick_counter;
while (SD_GetStatus() != SD_TRANSFER_OK) {
if (sys_tick_has_passed(stc, 2000)) {
printf("timeout waiting for read to finish\n");
break;
}
}
printf("done!!\n");
printf("%.16s", aBuffer_Block_Rx);
/*
snprintf((char*)aBuffer_Block_Rx, BLOCK_SIZE, "Here is some data back for you!\nBLOCK_SIZE=%d\n", BLOCK_SIZE);
error = SD_WriteBlock(aBuffer_Block_Rx, 512, BLOCK_SIZE);
printf("WriteBlock: %d\n", error);
while (SD_GetStatus() != SD_TRANSFER_OK) {
}
printf("done writing!\n");
*/
SD_PowerOFF();
SD_DeInit();
}
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