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MSP430FR6877IPZR异常复位

现象:上电屏幕闪烁0.00或者屏幕根本不亮;

故障出现不定,正常维持时间也不定。加热处理会使其功能临时正常。

通过将I/O 口置高后 故障可以解决。 但功耗加大;

出现反复复位的现象,通过不断的测试,配置P7.6口线为输出高电平,则不出现复位,功能正常。

晶振电路

P7.6口电路

复位电路