OVRD_ALERT (Bit 4): External pull-up on the ALERT pin indicator. Only active when ALERT pin is not already
being driven high by the AFE itself.
0 = No external override detected
1 = External override detected. Remains latched high until cleared by the host.
在ALERT引脚上下接470K欧电阻,并接470pF电容,接入MCU引脚配置为输入态,对BQ76940上电后读SYS_STAT状态值bit[4]一直为1,写入1亦无法消除,不知哪抽风了一直检测异常,望指导。
Star Xu:
关于这个问题您参考下面的链接
e2e.ti.com/…/841151