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您好,读取温度和湿度这里,主机重新发送restart命令之后,地址为0x81之后没有收到ACK信号,所以后面读取的寄存器的值都是FF。
但是上面读取ID的时序是没问题的,0x81之后能正确收到ACK信号。
下面读取温度和湿度的时序是没问题的,符合读时序的要求,原因在于第九个clock这里没有将SCL拉低。