[MCD

//功能：6位数码管动态扫描
#include
 __CONFIG(0x3f32);
//================================================//
#define uchar unsigned char
uchar SMBL;
const uchar LED7[]={0x92,0x99,0xb0,0xa4,0xf9,0xc0};
//=================函数声明======================//
void main(void)          //主函数
{

 TRISA=0X00;          //A口输出
 TRISD=0X00;           //B口输出
 PORTA=0XFE;         //A口输出高
 ADCON1=0X07;       //关A口AD
 GIE=1;                     //开总中断
 TMR0IE=1;              //开定时器中断
 OPTION=0X02;       //设分频比
 TMR0=0X00;          //定时器赋初值
 T0IF=0;                  //定时器中断标志置0
 SMBL=0;
 while(1)                  //循环
        {
          PORTD=LED7[SMBL];
        }
}
//=======数码管动态显示01235中断显示函数=========//
void interrupt dsq(void)
{
 T0IF=0;                     //清定时器中断标志
 PORTD=0XFF;          //熄灭数码管
 asm("bsf status,0");   //请C标志位
 asm("rlf porta,f");       //A口左移
 if(++SMBL>=7)          //数显变量+1，≠7跳过
          {
            PORTA=0B11111110;
            SMBL=0;
           }
 TMR0=0X00;            //定时器赋值
}