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I2S2接收的数据开始为啥是零,记得以前不是这样啊。

Other Parts Discussed in Thread: TMS320C5517

前面放大后

如图,这是刚开始接收的数据,问什么前面会是这种现象呢?用的I2S借口,AD是aic3204芯片(AGC是disable),输入信号时1Khz的正弦波。

平台:TMS320C5517 EVM