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28335Mcbsp的MCLKR-pin无法产生时钟信号



CLKG由内部低速外设时钟提供,配置好寄存器PCR-CLKRM=1,MCLKR引脚上时钟为高电平,没有时钟信号,FSR也一样,求高手指教。

附:DLB模式下,可正常收发数据。