你试试
- #include <reg51.h>
- #define uint unsigned int
- #define uchar unsigned char
- uchar table[]={ //0~F数组
- 0x3f,0x06,0x5b,0x4f,
- 0x66,0x6d,0x7d,0x07,
- 0x7f,0x6f,0x77,0x7c,
- 0x39,0x5e,0x79,0x71};
- uchar data dis_buf[8];//缓存
- uchar temp;
- void delayms(uint k)
- {
- uint i,j;
- for(i=k;i>0;i--)
- for(j=110;j>0;j--);
- }
- void main(void)
- {
- uint t;
- uchar i,j;
- for(i=0;i<8;i++)
- dis_buf[i]=table[i];//初始化缓存
- while(1)
- {
- if(++t>=500)
- {
- t=0;
- temp=table[0];
- for(i=0;i<15;i++)
- table[i]=table[i+1];//循环移动字符
- table[15]=temp;
- for(i=0;i<8;i++)
- dis_buf[i]=table[i];//更新缓存
- }
- P0=0x00; //段消隐
- P2&=0xe3; //清位码
- P2|=(j*4); //送位码
- P0=dis_buf[j]; //送段码
- j=++j%8;
- delayms(1);//延时控制循环周期
- }
- }
|
