HAL库里面各种跳后,最终定义:
uint32_t ClockEdge; /*!< Specifies the SDMMC_CCK clock transition on which Data and Command change. This parameter can be a value of @ref SDMMC_LL_Clock_Edge */
/**
* @brief Configure the speed bus mode
* @param hmmc: Pointer to the MMC handle
* @param SpeedMode: Specifies the MMC card speed bus mode
* This parameter can be one of the following values:
* @arg SDMMC_SPEED_MODE_AUTO: Max speed mode supported by the card
* @arg SDMMC_SPEED_MODE_DEFAULT: Default Speed (MMC @ 26MHz)
* @arg SDMMC_SPEED_MODE_HIGH: High Speed (MMC @ 52 MHz)
* @arg SDMMC_SPEED_MODE_DDR: High Speed DDR (MMC DDR @ 52 MHz)
* @retval HAL status
*/