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msp430fr5969进入lpm3.5后通过实时时钟唤醒,rtc_b发生中断后导致系统重启,然后rtc_b需要重新初始化才能继续运行,这正常吗?ccs的状态栏显示单片机先在active模式,然后进入lpm3.5模式,唤醒时先进入lpm4一秒左右才进入active模式,rtc_b就挂了。在lpm3.5模式下有没有能够不暂停的rtc_b,最好求列程。
PMx.5把内核电压,RAM全部断掉,启动时间也会很长,一般不建议用PMX.5,推荐PM3
http://www.ti.com.cn/general/cn/docs/lit/getliterature.tsp?baseLiteratureNumber=slau367&fileType=pdf
用户手册1.4.3章节有详细介绍,及进入PM3.5和退出的步骤