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MSP430f5328这款芯片内置的RTC寄存器中的值掉电丢失，可以选用外置纽扣电池供电么，该怎么处理外围电路，给个参考
这个问题建议楼主到MSP430 的MCU版块去咨询哈。
好的
可以使用外置电池供电，使用二极管把两个电源隔一下就行
