commit
37d8cc4ff2
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@ -21,7 +21,7 @@ rt_uint8_t SD_Init(void)
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SDCARD_Handler.Init.ClockPowerSave=SDIO_CLOCK_POWER_SAVE_DISABLE; //空闲时不关闭时钟电源
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SDCARD_Handler.Init.BusWide=SDIO_BUS_WIDE_1B; //1位数据线
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SDCARD_Handler.Init.HardwareFlowControl=SDIO_HARDWARE_FLOW_CONTROL_DISABLE;//关闭硬件流控
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SDCARD_Handler.Init.ClockDiv=SDIO_TRANSFER_CLK_DIV; //SD传输时钟频率最大25MHZ
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SDCARD_Handler.Init.ClockDiv=SDIO_INIT_CLK_DIV; //初始化时钟为400KHZ
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SD_Error=HAL_SD_Init(&SDCARD_Handler,&SDCardInfo);
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if(SD_Error!=SD_OK) return 1;
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@ -526,6 +526,7 @@ struct stm32f4_spi stm32f4_spi5 =
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/* .spi_handle = */{
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/* .Instance = */ SPI5,
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},
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#ifdef SPI_USE_DMA
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/* .hdma_rx = */ {
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DMA2_Stream3,
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DMA_CHANNEL_2,
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@ -537,6 +538,7 @@ struct stm32f4_spi stm32f4_spi5 =
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DMA_CHANNEL_2,
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},
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/* .hdma_tx_irq = */ DMA2_Stream4_IRQn,
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#endif /* SPI_USE_DMA */
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};
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static struct rt_spi_bus spi5_bus;
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@ -703,6 +705,7 @@ rt_err_t stm32_spi_bus_register(SPI_TypeDef * SPI,
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return RT_ENOSYS;
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}
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#ifdef SPI_USE_DMA
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/* Configure the DMA handler for Transmission process */
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p_spi_bus->hdma_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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p_spi_bus->hdma_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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@ -727,6 +730,7 @@ rt_err_t stm32_spi_bus_register(SPI_TypeDef * SPI,
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p_spi_bus->hdma_rx.Init.FIFOThreshold = DMA_FIFO_THRESHOLD_FULL;
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p_spi_bus->hdma_rx.Init.MemBurst = DMA_MBURST_INC4;
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p_spi_bus->hdma_rx.Init.PeriphBurst = DMA_PBURST_INC4;
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#endif /* SPI_USE_DMA */
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spi_bus->parent.user_data = &stm32f4_spi5;
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@ -20,7 +20,7 @@
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#include "stm32f4xx_hal.h"
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#define SPI_USE_DMA
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//#define SPI_USE_DMA
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struct stm32f4_spi
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{
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