MCU 与 BQ78350 通讯 ,发现MCU 在拉高,BQ78350在拉低,导致出现三角波?为什么?
我专门写一段程序测试;从机地址改为其他数据波形完全正常,改为BQ78350地址 (SendData(0x16);) ;数据波形就变成三角波了!
已确认:SMBUS 上拉电阻4.7K PCB 走线很近;电源很稳!
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