/**
* @brief Initializes the SD card device.
* @param None
* @retval SD status
*/
uint8_t BSP_SD_Init(void)
{
uint8_t sd_state = MSD_OK;
/* uSD device interface configuration */
uSdHandle.Instance = SDMMC1;
uSdHandle.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
uSdHandle.Init.ClockBypass = SDMMC_CLOCK_BYPASS_DISABLE;
uSdHandle.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
uSdHandle.Init.BusWide = SDMMC_BUS_WIDE_1B;
uSdHandle.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_ENABLE;
uSdHandle.Init.ClockDiv = SDMMC_TRANSFER_CLK_DIV;
/* Msp SD Detect pin initialization */
SD_Detect_MspInit();
/* Check if the SD card is plugged in the slot */
if (BSP_SD_IsDetected() != SD_PRESENT)
{
return MSD_ERROR_SD_NOT_PRESENT;
}
/* Msp SD initialization */
BSP_SD_MspInit(&uSdHandle, NULL);
/* HAL SD initialization */
if (HAL_SD_Init(&uSdHandle) != HAL_OK)
{
sd_state = MSD_ERROR;
}
/* Configure SD Bus width */
if (sd_state == MSD_OK)
{
/* Enable wide operation */
if (HAL_SD_ConfigWideBusOperation(&uSdHandle, SDMMC_BUS_WIDE_4B) != HAL_OK)
{
sd_state = MSD_ERROR;
}
else
{
sd_state = MSD_OK;
}
}
return sd_state;
}
/**
* @brief Initializes the SD card device.
* @param None
* @retval SD status
*/
static uint8_t SD_Init(void)
{
uint8_t SD_state = MSD_OK;
/* uSD device interface configuration */
uSdHandle.Instance = SDMMC1;
uSdHandle.Init.ClockEdge = SDMMC_CLOCK_EDGE_RISING;
uSdHandle.Init.ClockBypass = SDMMC_CLOCK_BYPASS_DISABLE;
uSdHandle.Init.ClockPowerSave = SDMMC_CLOCK_POWER_SAVE_DISABLE;
uSdHandle.Init.BusWide = SDMMC_BUS_WIDE_1B;
uSdHandle.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_DISABLE;
uSdHandle.Init.ClockDiv = SDMMC_TRANSFER_CLK_DIV;
/* Msp SD Detect pin initialization */
SD_Detect_MspInit();
/* Check if SD card is present */
if(SD_IsDetected() != SD_PRESENT) return MSD_ERROR_SD_NOT_PRESENT;
/* Init GPIO and NVIC */
SD_MspInit();
/* HAL SD initialization */
if(HAL_SD_Init(&uSdHandle, &uSdCardInfo) != SD_OK) SD_state = MSD_ERROR;
/* Configure SD Bus width */
if (SD_state == MSD_OK)
{
/* Enable wide operation */
if(HAL_SD_WideBusOperation_Config(&uSdHandle, SDMMC_BUS_WIDE_4B) != SD_OK) SD_state = MSD_ERROR;
else SD_state = MSD_OK;
}
return SD_state;
}
