STM32H743II / SD Card Init Problem

[Sany]

Hey

I have a Custom Board with a STM32H743IIT6 (Rev V) (My IOC is attached) i have a clock source with 25 MHZ, and the SDCARD is connected over 4 Bits, and Clock Divider 5.

My code runs on main function in to the Error_Handler with Reason "HAL_SD_ERROR_UNSUPPORTED_FEATURE" when no SD-Card is inserted. When i insert a SD-Card befor i powered up, the code runs and the LED is blinking in 1 sec.

is this a bug? why must i inserted a sdcard for the boot sequence?

main.c:

int main(void)
{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  /* MPU Configuration--------------------------------------------------------*/
  MPU_Config();

  /* Enable the CPU Cache */

  /* Enable I-Cache---------------------------------------------------------*/
  SCB_EnableICache();

  /* Enable D-Cache---------------------------------------------------------*/
  SCB_EnableDCache();

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */
  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */
  SystemClock_Config();

  /* Configure the peripherals common clocks */
  PeriphCommonClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */
  MX_GPIO_Init();
  MX_FMC_Init();
  MX_I2C1_Init();
  MX_I2C2_Init();
  MX_I2C3_Init();
  MX_LTDC_Init();
  MX_QUADSPI_Init();
  MX_SDMMC1_SD_Init();
  MX_TIM8_Init();
  MX_TIM12_Init();
  MX_UART4_Init();
  MX_USART1_UART_Init();
  MX_USART2_UART_Init();
  MX_USART6_UART_Init();
  MX_USB_OTG_FS_PCD_Init();
  MX_USB_OTG_HS_HCD_Init();
  /* USER CODE BEGIN 2 */

  HAL_GPIO_TogglePin(LED_ERROR_GPIO_Port, LED_ERROR_Pin);

  /* USER CODE END 2 */

  /* Infinite loop */
  /* USER CODE BEGIN WHILE */
  while (1)
  {
    /* USER CODE END WHILE */

    /* USER CODE BEGIN 3 */
	  HAL_GPIO_TogglePin(LED_SYS_GPIO_Port, LED_SYS_Pin);
	  HAL_Delay(1000);
  }
  /* USER CODE END 3 */
}

static void MX_SDMMC1_SD_Init(void)
{

  /* USER CODE BEGIN SDMMC1_Init 0 */

  /* USER CODE END SDMMC1_Init 0 */

  /* USER CODE BEGIN SDMMC1_Init 1 */

  /* USER CODE END SDMMC1_Init 1 */
  hsd1.Instance = SDMMC1;
  hsd1.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
  hsd1.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
  hsd1.Init.BusWide = SDMMC_BUS_WIDE_4B;
  hsd1.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_ENABLE;
  hsd1.Init.ClockDiv = 5;
  if (HAL_SD_Init(&hsd1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN SDMMC1_Init 2 */

  /* USER CODE END SDMMC1_Init 2 */

}

static uint32_t SD_PowerON(SD_HandleTypeDef *hsd)
{
.....

errorstate = SDMMC_CmdOperCond(hsd->Instance);
  if (errorstate == SDMMC_ERROR_TIMEOUT) /* No response to CMD8 */
  {
    hsd->SdCard.CardVersion = CARD_V1_X;
    /* CMD0: GO_IDLE_STATE */
    errorstate = SDMMC_CmdGoIdleState(hsd->Instance);
    if (errorstate != HAL_SD_ERROR_NONE)
    {
      return errorstate;
    }

  }
  else
  {
    hsd->SdCard.CardVersion = CARD_V2_X;
  }

  if (hsd->SdCard.CardVersion == CARD_V2_X)
  {
    /* SEND CMD55 APP_CMD with RCA as 0 */
    errorstate = SDMMC_CmdAppCommand(hsd->Instance, 0);
    if (errorstate != HAL_SD_ERROR_NONE)
    {
      return HAL_SD_ERROR_UNSUPPORTED_FEATURE;
    }
  }

.....
}

[AScha.3]

Hi,

afaik : bug, yes, in your program / plan how to use a sd-card...

the sd-card holders have a contact, to check : card in - or not.

Then , if card IN (contact to gnd , on most holders), need init (the interface), then init card (HAL_SD_InitCard(&hsd1);); then check, success, or card not "recognized"; if ok, 

now card can work, so next is mount (for filesystem, fatFS ..) and can use card, read files etc.

So if you let the HAL generated code just init the interface+card , but there is no card, get error - obviously.

To get it working, when card is inserted, first you have to check this; then begin init....etc.

And if want remove card, close files, unmount, de-init interface...can remove then.

Basically its same, as on your PC: try to start it without hard-disk, error, big problem: no boot system..., then connect a disk : this will do nothing, except you have a bios, that can give you hot-plug feature and doing then the needed management, to mount and access the disk.

[Sany · Accepted solution]

Hi,

I have a other Project with a SDcard and STM32H743, and here runs the SD Init Routine without a SDcard.

and i found the changes between the Firmware Packages:

FW H7 V1.11.2:

static void MX_SDMMC1_SD_Init(void)
{

  /* USER CODE BEGIN SDMMC1_Init 0 */

  /* USER CODE END SDMMC1_Init 0 */

  /* USER CODE BEGIN SDMMC1_Init 1 */

  /* USER CODE END SDMMC1_Init 1 */
  hsd1.Instance = SDMMC1;
  hsd1.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
  hsd1.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
  hsd1.Init.BusWide = SDMMC_BUS_WIDE_1B;
  hsd1.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE;
  hsd1.Init.ClockDiv = 4;
  /* USER CODE BEGIN SDMMC1_Init 2 */

  /* USER CODE END SDMMC1_Init 2 */

}

FW H7 V1.12.1:

static void MX_SDMMC1_SD_Init(void)
{

  /* USER CODE BEGIN SDMMC1_Init 0 */

  /* USER CODE END SDMMC1_Init 0 */

  /* USER CODE BEGIN SDMMC1_Init 1 */

  /* USER CODE END SDMMC1_Init 1 */
  hsd1.Instance = SDMMC1;
  hsd1.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
  hsd1.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
  hsd1.Init.BusWide = SDMMC_BUS_WIDE_4B;
  hsd1.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_ENABLE;
  hsd1.Init.ClockDiv = 4;
  if (HAL_SD_Init(&hsd1) != HAL_OK)
  {
    Error_Handler();
  }
  /* USER CODE BEGIN SDMMC1_Init 2 */

  /* USER CODE END SDMMC1_Init 2 */

}