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EV2400+BQ76940EVM I2C通信连接不上

user4572487
Prodigy 60 points
Other Parts Discussed in Thread: BQ76940EVM, EV2400, BQ76940, BQ76930

我刚新买的EV2400+BQ76940EVM一套，按照

bq76930 and bq76940 Evaluation Module

User's Guide   2.2.1 AFE Quick Start操作到第10步总是提示：

：

我按照要求接了外接电源40v, 76940 regout管脚也有2,5V输出电压，但就是通信不上是什么原因呢？