MSP430F149学习之路——捕获/比较模式

1.捕获模式

 #include <msp430x14x.h>
 unsigned int last0=,last1=;
 unsigned int k=,j=;
 void mian(void)
 {
   WDTCTL = WDTPW + WDTHOLD;
   TACTL  = TACLR + TASSEL_2 + ID_3 + MC_3;

   TACCTL0 = CM_3 + CCIS_0 + SCS + CAP + CCIE;
   TACCTL1 = CM_3 + CCIS_1 + SCS + CAP + CCIE;

   P1DIR = 0X00;
   P1SEL = 0XFF;

   P3DIR = 0XFF;
   P3OUT = 0XFF;
   _EINT();
   for(;;)
   {
     for(int i=;i<;i++)
       _NOP();
     P3OUT ^= BIT0;       //产生捕获信号源
   }
 }
 #pragma vector=TIMERA1_VECTOR
 __interrupt void Timer_A(void)
 {
   switch(TAIV)
   {
   case :
     P1OUT ^= BIT3;
     j=CCR1 = last1;
     last1  = CCR1;
     break;
   case :break;
   case :P1OUT ^= BIT0;break;
   }
 }

 #pragma vector=TIMERA1_VECTOR
 __interrupt void Timer_cc(void)
 {
   if(SCCI0 == )
   {
     k = CCR0 - last0;
     last0 = CCR0;
   }
 }

2.比较模式

 /***************************************
 功能：ACLK=32768 Hz,MCLK=SMCLK=DCOCLK=80kHz
       由捕获/比较模块0产生10Hz的方波，P6.0输出；
       由捕获/比较模块1产生20Hz的方波，P6.7输出。
 ***************************************/
 #include <msp430x14x.h>
 void  main(void)
 {
   WDTCTL = WDTPW + WDTHOLD;
   TACTL |= TASSEL_2 + ID_3 + MC_2 + TACLR + TAIE;

   TACCTL0= CCIE;
   TACCTL1= CCIE;
   TACCR0 = ;
   TACCR1 = ;

   P6DIR  = 0XFF;
   P6OUT  = 0Xff;
   _EINT();
 }

 #pragma vector=TIMERA0_VECTOR
 __interrupt void Timer_A(void)
 {
   P6OUT ^= BIT0;
   TACCR0 = TACCR0 + ;
 }
 #pragma vector=TIMERA1_VECTOR
 __interrupt void Timer_A1(void)
 {
   switch(TAIV)
   {
   case :
     P6OUT ^= BIT7;
     TACCR1 = TACCR1+;
     break;
   case :break;
   case :P6OUT ^= BIT1;break;
   }
 }