點陣顯示實驗
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2021-1-10 13:48 上傳
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2021-1-10 13:48 上傳
- #include <reg51.h>
- unsigned char code tab[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
- unsigned char code digittab[10][8]={
- {0x00,0x00,0x3e,0x41,0x41,0x41,0x3e,0x00}, //0
- {0x00,0x00,0x00,0x00,0x21,0x7f,0x01,0x00}, //1
- {0x00,0x00,0x27,0x45,0x45,0x45,0x39,0x00}, //2
- {0x00,0x00,0x22,0x49,0x49,0x49,0x36,0x00}, //3
- {0x00,0x00,0x0c,0x14,0x24,0x7f,0x04,0x00}, //4
- {0x00,0x00,0x72,0x51,0x51,0x51,0x4e,0x00}, //5
- {0x00,0x00,0x3e,0x49,0x49,0x49,0x26,0x00}, //6
- {0x00,0x00,0x40,0x40,0x40,0x4f,0x70,0x00}, //7
- {0x00,0x00,0x36,0x49,0x49,0x49,0x36,0x00}, //8
- {0x00,0x00,0x32,0x49,0x49,0x49,0x3e,0x00} //9
- };
- unsigned int timecount; //
- unsigned char lie; //
- unsigned char shu; //
-
- void main(void)
- {
- TMOD=0x01;
- TH0=(65536-3000)/256;
- TL0=(65536-3000)%256;
- TR0=1;
- ET0=1;
- EA=1;
- while(1);
- }
- void t0(void) interrupt 1
- {
- TH0=(65536-3000)/256;
- TL0=(65536-3000)%256;
- P3=tab[lie];
- P0=digittab[shu][lie];
- lie++;
- if(lie==8) lie=0;
- timecount++;
- if(timecount==333)
- {
- timecount=0;
- shu++;
- if(shu==10) shu=0;
- }
- }
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