Mercurial > ~darius > hgwebdir.cgi > stm32temp
view stm32_eval.h @ 49:ace431a0d0f5
Add SDIO code poached from STM. Use FatFS to read from SD card.
LFN doesn't work reliably so it's disabled for now.
author | Daniel O'Connor <darius@dons.net.au> |
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date | Wed, 03 Apr 2013 23:34:20 +1030 |
parents | |
children | d7207a9d3c3b |
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/* SDIO Intialization divisor (400KHz max) */ #define SDIO_INIT_CLK_DIV ((uint8_t)0xb2) /* SDIO Data Transfer Frequency (25MHz max) */ #define SDIO_TRANSFER_CLK_DIV ((uint8_t)0x01) #undef SD_HAVE_DETECT /* Going to 4 bit mode gives CRC errors */ #define SD_NO_4BIT //#define SD_DMA_MODE ((uint32_t)0x00000000) #define SD_POLLING_MODE ((uint32_t)0x00000002) /* No idea if this is for all SD cards. The one I have has 1024 byte blocks but 512 byte reads work * Note that SD_ReadBlock forces blocksize to be 512 and divides the address by 512 but only for SDIO_HIGH_CAPACITY_SD_CARD's */ #define SD_BLOCK_SIZE 512 void SD_LowLevel_DeInit(void); void SD_LowLevel_Init(void); void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize); void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize);