低8位读的全是0
高8位完全没问题
配置寄存器,BUS电压,差分电压,电流这些寄存器,全是低8位读不到,高8位倒是正常
应该按照时序来了啊
读第一个主机应答的话,低8位一直出来的是 0x00
读第一个主机不应答的话,低8位一直出来的是0xff
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