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comparison stm32_eval.h @ 55:b21db2b47a27

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Enable DMA mode by initing DMA channel and enabling IRQ handler.
author Daniel O'Connor <darius@dons.net.au>
date Sun, 07 Apr 2013 22:34:05 +0930
parents 9521be9b391e
children f0563086040d
comparison
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54:79c7892d07b3 55:b21db2b47a27
5 5
6 #undef SD_HAVE_DETECT 6 #undef SD_HAVE_DETECT
7 7
8 /* Going to 4 bit mode gives CRC errors */ 8 /* Going to 4 bit mode gives CRC errors */
9 #define SD_NO_4BIT 9 #define SD_NO_4BIT
10 //#define SD_DMA_MODE ((uint32_t)0x00000000) 10 #define SD_DMA_MODE ((uint32_t)0x00000000)
11 #define SD_POLLING_MODE ((uint32_t)0x00000002) 11 //#define SD_POLLING_MODE ((uint32_t)0x00000002)
12 12
13 /* No idea if this is for all SD cards. The one I have has 1024 byte blocks but 512 byte reads work 13 /* No idea if this is for all SD cards. The one I have has 1024 byte blocks but 512 byte reads work
14 * Note that SD_ReadBlock forces blocksize to be 512 and divides the address by 512 but only for SDIO_HIGH_CAPACITY_SD_CARD's 14 * Note that SD_ReadBlock forces blocksize to be 512 and divides the address by 512 but only for SDIO_HIGH_CAPACITY_SD_CARD's
15 */ 15 */
16 #define SD_BLOCK_SIZE 512 16 #define SD_BLOCK_SIZE 512
19 void SD_LowLevel_Init(void); 19 void SD_LowLevel_Init(void);
20 void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize); 20 void SD_LowLevel_DMA_RxConfig(uint32_t *BufferDST, uint32_t BufferSize);
21 void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize); 21 void SD_LowLevel_DMA_TxConfig(uint32_t *BufferSRC, uint32_t BufferSize);
22 uint32_t SD_DMAEndOfTransferStatus(void); 22 uint32_t SD_DMAEndOfTransferStatus(void);
23 23
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