MSP430F149学习之路——时钟1

/**************************
功能：LED每隔1秒闪烁一次
****************************/
#include <msp430x14x.h>
void main()
{
  P6DIR = 0XFF;
  P6OUT = 0X00;
  TACCR0 = 4095;
  TACCTL0 = CCIE;
  TACTL = TASSEL_1 + ID_3 + MC_1;
  
  _EINT();
  LPM3;
}
#pragma vector=TIMERA0_VECTOR
__interrupt void Timer_A(void)
{
  P6OUT ^= 0XFF;
}

 1 /*********************************
 2 程序流程：
 3 关看门狗-->定时中断10ms-->开总中断-->中断是否置位
 4 *********************************/
 5 #include <msp430x14x.h>
 6 
 7 int flag=0,time=0;
 8 void int_clk();    //初始化时钟
 9 void int_timer();  //设置定时器A
10 void main()
11 {
12   WDTCTL = WDTPW +WDTHOLD;
13   P6DIR = 0XFF;
14   P6OUT = 0XFF;
15   int_clk();
16   int_timer();
17   _EINT();
18   
19   for(;;)
20   {
21     while(flag)
22     {
23       flag=0;
24       time++;
25       if(time==100)
26       {
27         P6OUT ^= 0XfF;
28         time = 0;
29       }
30     }
31   }
32 }
33 
34 void int_clk()
35 {
36   BCSCTL1 &= ~XT2OFF;
37   BCSCTL2 |= SELM_1 + SELS;
38   do
39   {
40     IFG1 &= ~OFIFG;
41     for(int i=100;i>0;i--)
42       _NOP();
43   }while((IFG1 & OFIFG)!=0);
44   IFG1 &= ~OFIFG;
45 }
46 
47 void int_timer()
48 {
49   TACTL |= TACLR + TASSEL_2 + ID_3 + MC_1;
50   TACTL |= TAIE;
51   TACCR0 = 9999;      //10ms
52 }
53 #pragma vector = TIMERA0_VECTOR
54 __interrupt void Timer_A(void)
55 {
56   P6OUT = 0X00;
57   switch(TAIV)
58   {
59   case 2:break;
60   case 4:break;
61   case 10:flag =1;break;
62   }
63 }