Other Parts Discussed in Thread: BQ27220, EV2400
之前用的bq27441,现在用的bq27220,但是官网没找到i2c驱动代码,哪里有呢?
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您好,建议用EV2400只读取一个数,如电池电压,然后用示波器把i2c的波形抓取下来。再抓一下自己软件编写的的i2c波形,同样读取这个电压,看看两者有什么区别,很快就能定位到问题。比如ACK信号有没有?发送地址对不对?发送命令时序对不对等。