MSP430F149学习之路——时钟1

1.看门狗产生方波

 #include <msp430x14x.h>
 void main()
 {
   WDTCTL = WDT_MDLY_32;
   IE1 |= WDTIE;
   P1DIR |= BIT1;
   _EINT();
 }
 #pragma vector=WDT_VECTOR
 __interrupt void Watchdog(void)
 {
   P1OUT ^= BIT1;
 }

2.增计数模式

 #include <msp430x14x.h>
 void main()
 {
   WDTCTL = WDTPW + WDTHOLD;
   P1DIR |= BIT1;
   CCTL0  = CCIE;
   CCR0   = ;
   TACTL  = TASSEL_2 + MC_1 + ID_3;
　　　_EINT();
 }
 #pragma vector=TIMERA0_VECTOR
 __interrupt void Timer_A(void)
 {
   P1OUT ^= BIT1;
 }

3.连续模式

 #include <msp430x14x.h>
 void main()
 {
   WDTCTL = WDTPW + WDTHOLD;
   P1DIR |= BIT1;
   TACTL  = TASSEL_2 + MC_2 + ID_3 + TACLR + TAIE;
   _EINT();
 }
 #pragma vector=TIMERA0_VECTOR
 __interrupt void Timer_A(void)
 {
   switch(TAIV)
   {
   case :break;
   case :break;
   case :P1OUT ^= BIT1;break;
   }
 }

4.增计数与连续模式

 #include <msp430x14x.h>
 void main()
 {
   WDTCTL = WDTPW + WDTHOLD;
   P6DIR  = 0xff;
   P6OUT  = 0XFF;

   TACCTL0= CCIE;
   TACCR0 = ;

   TACTL  = TASSEL_2 + MC_2 + ID_3 + TACLR + TAIE;
   _EINT();
 }

 #pragma vector=TIMERA0_VECTOR
 __interrupt void Timer_A0(void)
 {
   P6OUT  = ~(P6OUT & BIT0);
   TACCR0 = TACCR0 + ;
 }

 #pragma vector=TIMERA1_VECTOR
 __interrupt void Timer_A1(void)
 {
   switch(TAIV)
   {
   case :break;
   case :break;
   case :P6OUT = ~(P6OUT & BIT7);break;
   }
 }