/比较器中断 #include "msp430g2553.h" void main() { //关闭看门狗 WDTCTL=WDTPW+WDTHOLD; CACTL1=CAON+CAIE+CAREF_2;//打开比较器，允许中断，选择0.5VCC为参考电压 CACTL2=P2CA0+P2CA1+CAF;//选通两个输入引脚，滤波 P2DIR|=BIT0;//P2.0作为输出

void main() { // Stop watchdog timer to prevent time out reset WDTCTL = WDTPW + WDTHOLD; BCSCTL3 |= LFXT1S_2; // Set LFXT1为vol时钟即12kHZ CCTL0|= CCIE; //设置捕获/比较控制寄存器，CCIE=0x0010，使能捕获比较中断