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[急!求助]按照PCM2912A评估版做的USB声卡,无法识别设备。插上之后其他USB也不供电了,应该是短路了

这里是我的原理图和实物。麻烦工程师们看一看,急求。。。在这儿先谢谢了。

之前也做过一些TI芯片的板子,不过都是单片机的。音频方面不太了解啊。