MSP430F149 用ACLK校准DCO为4MHZ,在温度70以上运行时,4MHZ振荡稳不住。将DCO振荡校准为2MHZ时,在温度75度时稳定,但是75度运行24小时后,
DCO振荡变成510KHZ左右(示波器监测SMCLK输出),复位单片机DCO振荡还是510KHZ,请教专家能解释一下吗?如何能解决?
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MSP430F149 用ACLK校准DCO为4MHZ,在温度70以上运行时,4MHZ振荡稳不住。将DCO振荡校准为2MHZ时,在温度75度时稳定,但是75度运行24小时后,
DCO振荡变成510KHZ左右(示波器监测SMCLK输出),复位单片机DCO振荡还是510KHZ,请教专家能解释一下吗?如何能解决?