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mcasp的AHCLKXCTL和ACLKXCTL不能分频,但是AHCLKRCTLl和ACLKRCTL可以分频。请大神指点



mcasp做主。R支路和X支路寄存器设置的差不多,都是PDIR设输出,及AHCLKXCTL和AHCLKRCTL的BIT(15)。ACLKXCTL和ACLKRCTL设BIT(5)。然后设置分频的位数。但是X的没有效果,R支路的可以控制分频倍数。

小弟是个新手,愿得到大神们的指点。