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为降低uart模块被使用产生的功耗,能否在lpm3(MSP430G2553)模式使用时关闭与打开uart模块?

1、上电初始化时允许外部中断,关闭uart模块及其中断允许

2、外部中断被触发后退出lpm3,打开uart模块、允许uart中断

3、uart中断接收、数据处理完毕后关闭uart模块及其中断允许,进入LPM3模式

4、外部中断被触发重复2、3过程

这种处理方法行否?谢谢