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如何实现msp430f417掉电存储数据?请回答具体些,谢谢。

Other Parts Discussed in Thread: MSP430F417

用msp430f417做超声波热量表需要掉电存储数据,我在电池旁边放了一颗电解电容,当拔掉电池,我用SVS监测430电压下降到3.05V存储数据(只存一次),能明显看到显示屏一点一点变暗。但是再次上电时候所有数据都是乱的。我猜想电容放电过程是由高到低,低到某一值时候430跑飞了,导致数混乱。请尽快帮我解决,谢谢。