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BQ34Z100-G1: 成功连接bqstudio之后在芯片的图标上有一把琐

Part Number: BQ34Z100-G1
Other Parts Discussed in Thread: EV2400, , BQSTUDIO

BQ34Z100-G1成功连接之后在芯片的图标上有一把琐,如图所示,有时候有,有时候会消失。请问这个锁表示什么含义,是sealed?芯片保护?芯片休眠?还是EV2400与芯片通信存在错误?如何让这个锁一直有或者不再出现?