SDIO 全称是安全数字输入/输出接口,多媒体卡(MMC)、SD 卡、SD I/O 卡都有SDIO接口。MMC卡可以说是SD卡的前身,现阶段已经用得很少。STM32F1系列控制器有一个SDIO主机接口,它可以与MMC卡、SD 卡、SD I/O卡以及CE-ATA设备进行数据传输。另外,STM32F1系列控制器的SDIO是不支持SPI通信模式的,如果需要用到SPI通...
if(pdrv == MMC) {printf("\r\n---> disk_ioctl EMMC\r\n"); switch(cmd) {case GET_SECTOR_COUNT: *(DWORD * )buff = hmmc.MmcCard.BlockNbr; break; case GET_SECTOR_SIZE: *(DWORD * )buff = hmmc.MmcCard.BlockSize; break; case GET_BLOCK_SIZE: *(DWORD * )buff = 1; break; c...
注意,操作SD卡是采用的函数HAL_SD_XXXX,而操作eMMC是采用的函数HAL_MMC_XXXX,也就是说他们采用的函数前缀是不同的。 SD卡官网: www.sdcard.org。 SDMMC驱动eMMC支持1线,4线和8线模式,其中8线模式的最高速度可达208MB/S,实际速度受IO最大速度限制。 SDMMC驱动SD卡支持1线和4线模式。 STM32H7的SDMMC也...
I'm trying to set my MMC into sleep state when not using it. After setting it into standby mode and sending the CMD5 with the 15bit set to 1, the card goes into idle state and it's missing from theHAL_MMC_CardStateTypeDefvalues, it would be nice to have it declared there. The ...
Hello, sometimes the initialization of the SD card fails in function SD_FindSCR. There seems to be a timing problem between SDMMC_ConfigData and
hsd1.Init.HardwareFlowControl = SDMMC_HARDWARE_FLOW_CONTROL_ENABLE; hsd1.Init.ClockDiv = SDMMC_TRANSFER_CLK_DIV; Here are the function definitions in the "bsp_sd.c" of FatFS: Here the HAL_SD_RxCpltCallback is being called, but HAL_SD_TxCpltCallback is ne...
注意,操作SD卡是采用的函数HAL_SD_XXXX,而操作eMMC是采用的函数HAL_MMC_XXXX,也就是说他们采用的函数前缀是不同的。 SD卡官网:www.sdcard.org。 SDMMC驱动eMMC支持1线,4线和8线模式,其中8线模式的最高速度可达208MB/S,实际速度受IO最大速度限制。
/* Deinitialize the Channel for new transfer */ HAL_DMA_DeInit(&hdma_sdmmc1_tx); /* Configure the DMA Channel */ status = HAL_DMA_Init(&hdma_sdmmc1_rx); return (status); } /** * @brief Configure the DMA to transmit data to the SD card ...
HAL_SD_Get_CardInfo 465 35.2.25 HAL_SD_WideBusOperation_Config 466 35.2.26 HAL_SD_StopTransfer 466 35.2.27 HAL_SD_HighSpeed 466 35.2.28 HAL_SD_SendSDStatus 467 35.2.29 HAL_SD_GetStatus 467 35.2.30 HAL_SD_GetCardStatus 467 35.3 SD Firmware driver defines 467 35.3.1 SD 467 36 HAL...
In transfer mode and according to the SD Card standard, make sure that the 00083 SDMMC_CK frequency doesn't exceed 25MHz and 50MHz in High-speed mode switch.00084 To be able to use a frequency higher than 24MHz, you should use the SDMMC 00085...