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请问哪位高手知道如何打开AM5728的McASP7的DMA数据传输功能?

Other Parts Discussed in Thread: AM5728

请问哪位高手知道如何打开AM5728的McASP7的DMA数据传输功能?

现在需要使用McASP7的I2S功能,可以测量到McASP7的时钟aclkx,但是没有测量到McASP7的数据输出,没有测量到afrx,怎么调试?