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csl提供的EDMA3例程程序中,ACNT=256;BCNT=1;CCNT=1;可以看到EDMA3 一次搬移了256个bytes,并且置位相应的IPR。我修改ACNT=4;BCNT=64;CCNT=1;再触发一次发送的时候,为什么只搬移了4个bytes,还没有置位IPR。EDMA3处于A同步发送模式。