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请问如何可以用miniDSP 实现一个信号幅值检测?

Other Parts Discussed in Thread: PCM5141

请问如何可以用miniDSP 实现一个信号幅值检测?

我是用PCM5141,我想利用其miniDSP实现一个 信号幅值检测,就是如果音频信号大于一定的幅值,就让一个GPIO输出高电平。小于就为低电平。

我试过用 peak detector , 输出到gpio_out , 但不成功。

谢谢~