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有没有CAN用DMA进行接收和发送的参考例程。
抱歉，目前没有直接的例程。但是您可以参考之前的讨论
https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1006487/tms570ls3137-use-dma-mode-to-send-and-receive-can-data/3732969?tisearch=e2e-sitesearch&keymatch=TMS570%20CAN%20DMA#3732969
这个例程可以用DMA接收数据。但是没有CAN的DMA的发送。我自己尝试了一下，没实现CAN的DMA发送。希望大佬们提供一下CAN的DMA 发送配置。
由于手边没有该开发板，所以只能给您参考之前的讨论
https://e2e.ti.com/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1001542/tms570ls0714-using-dma-for-can1-tx/3763031?tisearch=e2e-sitesearch&keymatch=tms570%252520can%252520dma%252520TX#3763031
