msp430f149-

MSP430F149实验板实验代码

#include <msp430x14x.h>
#define uint unsigned int
#define uchar unsigned char 
  uint jj;
 uchar nn;
 unsigned char table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
void initsys(void)
{
  uchar k;
  BCSCTL1 &= ~XT2OFF;    //开启XT2晶振
  do 
  {
    IFG1 &= ~OFIFG;           // 清除振荡器失效标志
    for(k=0xee;k>0;k--)      //延时
      {
       ;
      }
    }
   while((IFG1 & OFIFG)!=0);        //判断XT2是否起振
   BCSCTL2 = SELM_2 + SELS;     // 选择MCLK SMCLK 为XT2  
}                                 //初始化

void main(void )
{
  // Stop watchdog timer to prevent time out reset
  WDTCTL = WDTPW + WDTHOLD;
  initsys();
  _EINT();
  TACTL = TASSEL1 + TACLR;
  CCTL0 =CCIE;
  CCR0 = 8000;
  TACTL |= MC1;   //连续计数模式;启动
  P4DIR |= 0xff;
  P6DIR |= 0xfc;
  while(1);
}
 #pragma vector= TIMERA0_VECTOR
 __interrupt void Timer_A(void)
 {
   CCR0 += 8000;
   switch(nn)
   
    {
    case 0x00:P4OUT=~table[nn];P6OUT = BIT2;  break;
    case 0x01:P4OUT=~table[nn];P6OUT = BIT3;  break;
    case 0x02:P4OUT=~table[nn];P6OUT = BIT4;  break;
    case 0x03:P4OUT=~table[nn];P6OUT = BIT5;  break;
    case 0x04:P4OUT=~table[nn];P6OUT = BIT6;  break;
    case 0x05:P4OUT=~table[nn];P6OUT = BIT7;  break;   
    } 
    nn++;
   nn=nn%6;
 }