Facing an issue with SDMMC on STM32H753

[Naresh_]

Hi 
i am using STM32H753z, now i am trying to access SD card  but i getting  some error in stm32h7xx_hal_sd.c file of static uint32_t SD_PowerON(SD_HandleTypeDef *hsd)  API,s  in this

/* SEND CMD55 APP_CMD with RCA as 0 */

errorstate = SDMMC_CmdAppCommand(hsd->Instance, 0); (errorstate is 4(return))

if (errorstate != HAL_SD_ERROR_NONE)

{

return HAL_SD_ERROR_UNSUPPORTED_FEATURE;

}

it return in HAL_SD_ERROR_UNSUPPORTED_FEATURE is any region to this, if i need to use old SD card is process?

[SHs]

Hello @Naresh_ ,

Please consider compiling your code with varying optimization levels to determine if the issue persists. In some cases, aggressive optimization can result in unexpected behavior.

BRs,