100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
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#include "dma.h"
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#include "usart.h"
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//////////////////////////////////////////////////////////////////////////////////
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/*********************************************************************/
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//DMA<4D><41><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
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//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
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//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
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//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
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/*********************************************************************/
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//////////////////////////////////////////////////////////////////////////////////
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DMA_HandleTypeDef UART1TxDMA_Handler; //DMA<4D><41><EFBFBD><EFBFBD>
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/*********************************************************************/
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//DMAx<41>ĸ<EFBFBD>ͨ<EFBFBD><CDA8><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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//<2F><><EFBFBD><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD>ǹ̶<C7B9><CCB6><EFBFBD>,<2C><><EFBFBD><EFBFBD>Ҫ<EFBFBD><D2AA><EFBFBD>ݲ<EFBFBD>ͬ<EFBFBD><CDAC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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//<2F>Ӵ洢<D3B4><E6B4A2>-><3E><><EFBFBD><EFBFBD>ģʽ/8λ<38><CEBB><EFBFBD>ݿ<EFBFBD><DDBF><EFBFBD>/<2F>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
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//DMA_Streamx:DMA<4D><41><EFBFBD><EFBFBD><EFBFBD><EFBFBD>,DMA1_Stream0~7/DMA2_Stream0~7
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//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
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//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
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//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
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//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
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/*********************************************************************/
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void MYDMA_Config(DMA_Stream_TypeDef *DMA_Streamx)
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{
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if((u32)DMA_Streamx>(u32)DMA2)//<2F>õ<EFBFBD><C3B5><EFBFBD>ǰstream<61><6D><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DMA2<41><32><EFBFBD><EFBFBD>DMA1
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{
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__HAL_RCC_DMA2_CLK_ENABLE();//DMA2ʱ<32><CAB1>ʹ<EFBFBD><CAB9>
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}
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else
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{
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__HAL_RCC_DMA1_CLK_ENABLE();//DMA1ʱ<31><CAB1>ʹ<EFBFBD><CAB9>
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}
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__HAL_LINKDMA(&UART1_Handler,hdmatx,UART1TxDMA_Handler); //<2F><>DMA<4D><41>USART1<54><31>ϵ<EFBFBD><CFB5><EFBFBD><EFBFBD>(<28><><EFBFBD><EFBFBD>DMA)
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//Tx DMA<4D><41><EFBFBD><EFBFBD>
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UART1TxDMA_Handler.Instance=DMA_Streamx; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѡ<EFBFBD><D1A1>
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UART1TxDMA_Handler.Init.Request=DMA_REQUEST_USART1_TX; //USART1<54><31><EFBFBD><EFBFBD>DMA
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UART1TxDMA_Handler.Init.Direction=DMA_MEMORY_TO_PERIPH; //<2F>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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UART1TxDMA_Handler.Init.PeriphInc=DMA_PINC_DISABLE; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
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UART1TxDMA_Handler.Init.MemInc=DMA_MINC_ENABLE; //<2F>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
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UART1TxDMA_Handler.Init.PeriphDataAlignment=DMA_PDATAALIGN_BYTE; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>:8λ
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UART1TxDMA_Handler.Init.MemDataAlignment=DMA_MDATAALIGN_BYTE; //<2F>洢<EFBFBD><E6B4A2><EFBFBD><EFBFBD><EFBFBD>ݳ<EFBFBD><DDB3><EFBFBD>:8λ
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UART1TxDMA_Handler.Init.Mode=DMA_NORMAL; //<2F><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ģʽ
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UART1TxDMA_Handler.Init.Priority=DMA_PRIORITY_MEDIUM; //<2F>е<EFBFBD><D0B5><EFBFBD><EFBFBD>ȼ<EFBFBD>
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UART1TxDMA_Handler.Init.FIFOMode=DMA_FIFOMODE_DISABLE;
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UART1TxDMA_Handler.Init.FIFOThreshold=DMA_FIFO_THRESHOLD_FULL;
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UART1TxDMA_Handler.Init.MemBurst=DMA_MBURST_SINGLE; //<2F>洢<EFBFBD><E6B4A2>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD>
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UART1TxDMA_Handler.Init.PeriphBurst=DMA_PBURST_SINGLE; //<2F><><EFBFBD><EFBFBD>ͻ<EFBFBD><CDBB><EFBFBD><EFBFBD><EFBFBD>δ<EFBFBD><CEB4><EFBFBD>
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HAL_DMA_DeInit(&UART1TxDMA_Handler);
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HAL_DMA_Init(&UART1TxDMA_Handler);
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}
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/*********************************************************************/
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//DMA<4D><41><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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//STM32H7<48><37><EFBFBD><EFBFBD>ģ<EFBFBD><C4A3>-HAL<41>⺯<EFBFBD><E2BAAF><EFBFBD>汾
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//DevEBox <20><>Խ<EFBFBD><D4BD><EFBFBD><EFBFBD>
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//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>mcudev.taobao.com
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//<2F>Ա<EFBFBD><D4B1><EFBFBD><EFBFBD>̣<EFBFBD>shop389957290.taobao.com
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/*********************************************************************/
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