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MCASP收发状态问题

Other Parts Discussed in Thread: AM3352

用AM3352的mcasp0收发外接codec的音频数据,其中AXR0收,AXR1发,另FSX(8kHz),ACLKX(256kHz)(收发时钟同步),且MCASP提供同步时钟,未配置dma,音频格式为TDM(I2S),采用cpu轮询。

当前能收到codec的音频数据且正常,但是把收到的数据再发出去,发送引脚AXR1无信号。

接收和发送的状态RSTAT、XSTAT的值均为...58 50 58 50 58 50 58 50 58 50....

pinmux校对过没问题,请问会是什么原因呢?谢谢!