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BQ78350-R1: 使用BQ79850+BQ76920方案,发现两个芯片无法通讯上

Part Number: BQ78350-R1
Other Parts Discussed in Thread: BQ76920, EV2400, BQ78350

只能在上电后的一瞬间通讯上,但后续无更新数据。我看规格书上写,每1秒会发包,通讯波形可以抓到,对比手册上,也没有什么错误,但两款芯片就是通讯不上。BQ76920分别有用BQ7692000PWR以及BQ76920003PWR试过,都无法通讯上。但拿EV2400对两款芯片进行通讯,又都能通讯上。