配置tdm-slots = <8>,有八个输出通道DA1~DA8,目前播放8通道的数据时,输入与输出的通道对应为
| CH2 | DA1 |
| CH3 | DA2 |
| CH4 | DA3 |
| CH5 | DA4 |
| CH6 | DA5 |
| CH7 | DA6 |
| CH8 | DA7 |
| 无数据 | DA8 |
想知道为什么会出现这个情况,是MCASP控制器的问题吗
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digital loop back,请看TRM文档。
22.3.10.5 Loopback Modes
https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf