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cc2640r2f的一个奇怪现象



设备采用2节aa电池供电,偶尔出现假死状态、表现如下:

1、CPU没有死机、程序正常工作

2、蓝牙还能正常通讯

3、输出异常、比如原来指示灯为正常亮度,现在变得特别暗

4、输入异常、高低电平不能正常识别。

请教各位、这是什么情况?是什么条件导致的?