baseimer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=70;tmp>0;tmp--);
        
     }
     
 void  init_BT(void)
     {
        BTCTL  = 0x06;                  //  Basic Timer 1 中断频率设置
        IE2   |= 0x80;     
     }


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_BT();                 //初始化Basic Timer 1
     _EINT();                   //使能中断
    }
     
     
 #pragma vector = BASICTIMER_VECTOR 
 __interrupt void  BT_Interrupt(void)
 
{
   light_LED();
     y();
  quench_LED();
 
  
 }