我使用的是MSP430F449,在程序中用到P1口中断,调试时查看P1口的寄存器,当P1.1进入中断时发现P1IFG的值为0xC3,即 P1.0, P1.6和P1.7都标志位置位了,但这三个引脚我都没有开中断,怎么会置位了呢?导致程序判断失误,无法执行中断程序。希望能帮忙解答下,是否有解决方法?谢谢~
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我使用的是MSP430F449,在程序中用到P1口中断,调试时查看P1口的寄存器,当P1.1进入中断时发现P1IFG的值为0xC3,即 P1.0, P1.6和P1.7都标志位置位了,但这三个引脚我都没有开中断,怎么会置位了呢?导致程序判断失误,无法执行中断程序。希望能帮忙解答下,是否有解决方法?谢谢~