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stmhal: Correct DMA to allow SD card on L4 MCUs.

uheapq-ticks
dpslwk 2016-06-29 12:26:21 +01:00 committed by Damien George
parent 14b7c3e59c
commit b03df60f32
2 changed files with 5 additions and 2 deletions
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4
stmhal/dma.c
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@ -267,8 +267,10 @@ const dma_descr_t dma_ADC_2_RX = { DMA2_Channel4, DMA_REQUEST_0, DMA_PERIPH_TO_M
const dma_descr_t dma_DAC_1_TX = { DMA2_Channel4, DMA_REQUEST_3, DMA_MEMORY_TO_PERIPH, dma_id_10, &dma_init_struct_dac };
const dma_descr_t dma_SPI_1_TX = { DMA2_Channel4, DMA_REQUEST_4, DMA_MEMORY_TO_PERIPH, dma_id_10, &dma_init_struct_spi_i2c };
*/
#if MICROPY_HW_HAS_SDCARD
#if defined(MICROPY_HW_HAS_SDCARD) && MICROPY_HW_HAS_SDCARD
// defined twice as L4 HAL only needs one channel and can correctly switch direction but sdcard.c needs two channels
const dma_descr_t dma_SDIO_0_TX= { DMA2_Channel4, DMA_REQUEST_7, DMA_MEMORY_TO_PERIPH, dma_id_10, &dma_init_struct_sdio };
const dma_descr_t dma_SDIO_0_RX= { DMA2_Channel4, DMA_REQUEST_7, DMA_PERIPH_TO_MEMORY, dma_id_10, &dma_init_struct_sdio };
#endif
/* not preferred streams
const dma_descr_t dma_ADC_3_RX = { DMA2_Channel5, DMA_REQUEST_0, DMA_PERIPH_TO_MEMORY, dma_id_11, NULL };

3
stmhal/dma.h
View File

@ -73,7 +73,8 @@ extern const dma_descr_t dma_I2C_1_TX;
extern const dma_descr_t dma_I2C_1_RX;
extern const dma_descr_t dma_SPI_3_RX;
extern const dma_descr_t dma_SPI_3_TX;
extern const dma_descr_t dma_SDIO_1_TX;
extern const dma_descr_t dma_SDIO_0_TX;
extern const dma_descr_t dma_SDIO_0_RX;
#endif