timea中断测试.c

msp430的3个常用中断模块

#include <msp430x44x.h>

void y()
     {
      unsigned long tmp;
      for(tmp=750;tmp>0;tmp--);        
     }
     
     
void Init_Timer_A(void)
                        {
                        TACTL = TASSEL0 + TACLR;         // ACLK, clear TAR
                        CCTL0 = CCIE;                 // CCR0 中断使能
                        CCR0=32768;                   //定时1s
                        TACTL|=MC0;                   //增计数模式
                        }

void light_LED(void)
     {  
       P5DIR |= 0x02; 
       P5OUT |= 0x02; 
     }
void quench_LED(void)
     {
       P5DIR |= 0x02;        
       P5OUT &= 0xfd;  
     }    
     


void main()
     { 
   
     WDTCTL = WDTHOLD + WDTPW;  //关闭看门狗
     Init_Timer_A();                 //初始化Basic Timer 1
     _EINT();                   //使能中断
    }
     
     
#pragma vector=TIMERA0_VECTOR
 __interrupt void TimerA0()

{
   light_LED();
   y();
   quench_LED();
 }