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我将PMBus外设配置为从设备模式,硬件自动确认地址位(0xB0),也没有启用I2C模式,相应的外设配置如图所示。在通讯过程会出现通讯地址对了,但没有应答。在发送一次通讯结束后,下一次通讯地址会不应答,再发送又能够应答,相当于间隔应答地址,通讯时序如图片所示,绿色信号为SCL,粉色信号为SDA,两次的通讯地址都为0xB0,一次应答,一次不应答。烦请帮忙看一下问题出在哪里,谢谢。