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TLV320DAC3100开机后Speaker声音小,Lineout声音正常



RT,机器有Speaker和Line out,都是通过3100输出,主控通过I2S、I2C发送数据和配置3100.

开机后,Speaker声音非常小(与音量无关,即使将音量调到最大,声音也非常小且无变化),而Line Out却能正常输出,调节音量也会有反应。

3100所有的电源都正常供给,通过示波器监测,没有发生过掉电的现象,只有重启机器才能恢复正常。

I2C速率为100K,且主控会在开机过程中前后2次通过I2C配置3100。

复现概率:30%, 附件为寄存器配置。

以上,请帮忙分析原因,谢谢!