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F28377s DMA传输问题



各位专家好:

        现在调DMA时出现一个问题,在语句DMACH5TransferConfig(RESULTS_BUFFER_SIZE-1, 0, 1)中,  如果传输size定义的值RESULTS_BUFFER_SIZE过大,输出的数据就会出现跳变,好像是有一个时间上的延时,这是什么原因?怎么解决呢?