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请问下有空闲中断这类的吗
@xls
看下参考手册的这个章节
@zr 有使用例程吗
@xls 【有道云笔记】800x串口DMA接收不定长度数据 https://share.note.youdao.com/s/P3cOOAnQ
这个是空闲中断+DMA的代码，可以参考一下
