在用BQ24157,遇到两个问题:
- OTG管脚的具体使用方法,我们担心如果上拉的话虽然使能了默认的500mA的限流,但是上电后默认却使能OTG功能;请问怎样接OTG可以保证芯片上电后进入充电模式,默认500mA限流?
- 0x02寄存器写入0xf2,读取实际值为0x72; 0x04写入0x71返回为0x41; 0x06寄存器手册上说可以写入一次,但是我们无法写入。请问这几个限流/限压寄存器应该怎么样写入才能写入最高值?谢谢!
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在用BQ24157,遇到两个问题: