Posted on June 28, 2016 at 10:05Hi! I have a problem with SD card
I write a file every second (30 byte added at the end of file) (SDcard @ 4MHz clock 4 wire) and sometimes, when firmware enters in HAL_SD_ReadBlocks function, it blocks at this stage
/* Poll on SDIO flags */
#ifdef SDIO_STA_STBITERR
while(!__HAL_SD_SDIO_GET_FLAG(hsd, SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DATAEND | SDIO_FLAG_STBITERR))
#else /* SDIO_STA_STBITERR not defined */
while(!__HAL_SD_SDIO_GET_FLAG(hsd, SDIO_FLAG_RXOVERR | SDIO_FLAG_DCRCFAIL | SDIO_FLAG_DTIMEOUT | SDIO_FLAG_DATAEND))
#endif /* SDIO_STA_STBITERR */
{
if (__HAL_SD_SDIO_GET_FLAG(hsd, SDIO_FLAG_RXFIFOHF)) {
why this behaviour ? Why FLAG RXFIFOHF isn't update?
I have also another block at
static HAL_SD_ErrorTypedef SD_CmdResp1Error(SD_HandleTypeDef *hsd, uint8_t SD_CMD)
{
HAL_SD_ErrorTypedef errorstate = SD_OK;
uint32_t response_r1;
while(!__HAL_SD_SDIO_GET_FLAG(hsd, SDIO_FLAG_CCRCFAIL | SDIO_FLAG_CMDREND | SDIO_FLAG_CTIMEOUT))
{
}
this flag aren't update and I remain here forever: how is it possible? Why in a library I have a blocking cycle?
Thank you very much
