Question
F_open looping
Using Nucleo-H753ZI
Trying to write to SD card using:
FATFS FatFs;
FIL file;
FRESULT FR_Status;
FATFS *FS_Ptr;
FR_Status = f_mount(&FatFs, SDPath, 1);
if (FR_Status != FR_OK)
{
printf("Error! While Mounting SD Card, Error Code: (%i)\r\n", FR_Status);
}
else{
printf("SD Card Mounted Successfully! \r\n\n");
}
static char hello_world[] ="hello world";
UINT bytesWritten;
if(HAL_SD_GetCardState(&hsd1) != HAL_SD_CARD_TRANSFER) {
printf("Card not ready\n");
}
FR_Status = f_open(&file, "hello_world.txt", FA_WRITE | FA_CREATE_ALWAYS); //tried 0:/ and / infront of hello_world.txt
FR_Status = f_write(&file, hello_world, sizeof(hello_world), &bytesWritten);
FR_Status = f_close(&file);The SDMMC peripheral is initialized in 4 bit mode and using a 20MHz clock.
Error occurs in stm32h7xx_hal_sd.c at:
It goes through the first sets of the for loops find then start going between the first if statement and the second.
while (!__HAL_SD_GET_FLAG(hsd, SDMMC_FLAG_RXOVERR | SDMMC_FLAG_DCRCFAIL | SDMMC_FLAG_DTIMEOUT | SDMMC_FLAG_DATAEND))
{
if (__HAL_SD_GET_FLAG(hsd, SDMMC_FLAG_RXFIFOHF) && (dataremaining >= SDMMC_FIFO_SIZE))
{
/* Read data from SDMMC Rx FIFO */
for (count = 0U; count < (SDMMC_FIFO_SIZE / 4U); count++)
{
data = SDMMC_ReadFIFO(hsd->Instance);
*tempbuff = (uint8_t)(data & 0xFFU);
tempbuff++;
*tempbuff = (uint8_t)((data >> 8U) & 0xFFU);
tempbuff++;
*tempbuff = (uint8_t)((data >> 16U) & 0xFFU);
tempbuff++;
*tempbuff = (uint8_t)((data >> 24U) & 0xFFU);
tempbuff++;
}
dataremaining -= SDMMC_FIFO_SIZE;
}
if (((HAL_GetTick() - tickstart) >= Timeout) || (Timeout == 0U))
{
/* Clear all the static flags */
__HAL_SD_CLEAR_FLAG(hsd, SDMMC_STATIC_FLAGS);
hsd->ErrorCode |= HAL_SD_ERROR_TIMEOUT;
hsd->State = HAL_SD_STATE_READY;
hsd->Context = SD_CONTEXT_NONE;
return HAL_TIMEOUT;
}
}