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78pl116实现SMBus通信的基本条件是什么

Other Parts Discussed in Thread: BQ34Z100, BQ77910A, BQ78PL116

我现在正在调试78pl116的电路,使用USB Interface Adapter与之通信,新焊接的电路板无法实现通信,而之前正常使用的板子却通信正常。

请问116实现通信的必要条件是什么呢?

我现在接通了V0~V3,焊接了数据手册中的R30~R31,我想应该能够实现通信的啊,为什么不行呢。