HAL_GetTick(); while ((RX_Flag == 0) && ((HAL_GetTick() - timeout) < SD_TIMEOUT)) { } /* incase of a timeout return error */ if (RX_Flag == 0) { res = RES_ERROR; } else { RX_Flag = 0; timeout = HAL_GetTick(); while ((HAL_GetTick() - timeout) < SD_TIME...