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MSP430F417有以下的问题请帮忙分析一下

Other Parts Discussed in Thread: MSP430F417

       应用MSP430F417方案做了一个小的系统,碰到偶尔程序死掉的情况,此时量测32.768Khz的晶振没有起来,比较奇怪的是量测RESET#信号的电平只有1.8V左右,正常情况此信号的电平为3.1V,RESET电路为1M电阻与0.1uF电容做的RC电路,RESET#信号只连到MCU与一个芯片上;如果重新插拔一下电源,此现象消失系统可以正常工作,RESET#也变为3.1V;如果有描述不清楚地方,请随时提出,谢谢.