msp430f149-

MSP430F149实验板实验代码

#include<msp430x14x.h>
#define disp_data  P4OUT
#define dig P6OUT
#define uchar unsigned char
#define uint  unsigned int
unsigned char seg_bcd[] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0xbf};
 // CCRO 捕获比较中断处理
 #pragma vector=TIMERA0_VECTOR
 __interrupt void Timer_A0 (void)
{ static uchar shift=0x01;
   CCR0  = 1500;          //重新载入CCR0捕获/比较数据寄存器数据
   P4DIR |= 0Xff;
   P6DIR |= 0xfc;
   if(dat_code>9)dat_code=10;
   switch (shift)
    { case 0x01:dig = BIT2;shift<<=1;disp_data=seg_bcd[dat_code];break;
      case 0x02:dig = BIT3;shift<<=1;disp_data=seg_bcd[0];break;
      case 0x04:dig = BIT4;shift<<=1;disp_data=seg_bcd[0];break;
      case 0x08:dig = BIT5;shift=0x01;disp_data=seg_bcd[0];break;
      default:shift=0x01;break;
    }
}