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Amy 您好,
PCMEN引脚外接高电平为3.3V,低电平为0V。使用万用表测试电平没有问题
使用STM32 I2S采集PCM4220数据,STM32做从, PCM4220做主。STM32 I2S准备就绪后PCMEN使能,能正常采集到数据,PCMEN禁能仍能采集到数据。只有将PCM4222 RST后才能禁能PCM输出。