MSP430F149学习之路——时钟1

1.看门狗产生方波

 1 #include <msp430x14x.h>
 2 void main()
 3 {
 4   WDTCTL = WDT_MDLY_32;
 5   IE1 |= WDTIE;
 6   P1DIR |= BIT1;
 7   _EINT();
 8 }
 9 #pragma vector=WDT_VECTOR
10 __interrupt void Watchdog(void)
11 {
12   P1OUT ^= BIT1;
13 }

2.增计数模式

 1 #include <msp430x14x.h>
 2 void main()
 3 {
 4   WDTCTL = WDTPW + WDTHOLD;
 5   P1DIR |= BIT1;
 6   CCTL0  = CCIE;
 7   CCR0   = 10000;
 8   TACTL  = TASSEL_2 + MC_1 + ID_3;
　　　_EINT();
 9 }
10 #pragma vector=TIMERA0_VECTOR
11 __interrupt void Timer_A(void)
12 {
13   P1OUT ^= BIT1;
14 }

3.连续模式

 1 #include <msp430x14x.h>
 2 void main()
 3 {
 4   WDTCTL = WDTPW + WDTHOLD;
 5   P1DIR |= BIT1;
 6   TACTL  = TASSEL_2 + MC_2 + ID_3 + TACLR + TAIE;
 7   _EINT();
 8 }
 9 #pragma vector=TIMERA0_VECTOR
10 __interrupt void Timer_A(void)
11 {
12   switch(TAIV)
13   {
14   case 2:break;
15   case 4:break;
16   case 10:P1OUT ^= BIT1;break;
17   }
18 }

4.增计数与连续模式

 1 #include <msp430x14x.h>
 2 void main()
 3 {
 4   WDTCTL = WDTPW + WDTHOLD;
 5   P6DIR  = 0xff;
 6   P6OUT  = 0XFF;
 7   
 8   TACCTL0= CCIE;
 9   TACCR0 = 50000;
10   
11   TACTL  = TASSEL_2 + MC_2 + ID_3 + TACLR + TAIE;
12   _EINT();
13 }
14 
15 #pragma vector=TIMERA0_VECTOR
16 __interrupt void Timer_A0(void)
17 {
18   P6OUT  = ~(P6OUT & BIT0);
19   TACCR0 = TACCR0 + 50000;
20 }
21 
22 #pragma vector=TIMERA1_VECTOR
23 __interrupt void Timer_A1(void)
24 {
25   switch(TAIV)
26   {
27   case 2:break;
28   case 4:break;
29   case 10:P6OUT = ~(P6OUT & BIT7);break;
30   }
31 }

posted on 2015-07-09 10:55 LeoSanford 阅读(415) 评论(0) 编辑收藏举报