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DLPC2607采用的是标准I2C协议吗?

Other Parts Discussed in Thread: DLPC2607

 有谁知道DLPC2607是不是采有标准I2C协议? 为什么我对一个寄存器写数据所比如0x12(Red LED driver current) 写值0x421 .

然后再次读这个寄存器的值是0

用示波器看过波形,I2C协议是对的,而且通过波形可以看出,数据的读与写都是完成了的,可以就是值不对.