此程序可完成CP1比较器的比较功能，比较器基准信号来自于VREF引脚,比较器响应后将产生中断,可在中断程序中设断点观察.-This program can be completed comparator CP1 comparison function, the comparator reference signal from the VREF pin, the comparator will generate an interrupt response can set breakpoints in the interrupt program observation.