51hei.png (44.52 KB, 下載次數: 10)
下載附件
2020-10-27 17:20 上傳
單片機源程序如下:
- #include<reg52.h>
- sbit A1=P2^2;
- sbit A2=P2^3;
- sbit A3=P2^4;
- typedef unsigned int uint;
- typedef unsigned char uchar;
- uchar num[17]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
- void delay(uint z);
- void DigDisplay();
- void main()
- {
- while(1)
- {
- void DigDisplay();
- }
- }
- void delay(uint z)
- {
- int i,j;
- for(i=100;i>0;i--)
- for(j=z;j>0;j--);
- }
- void DigDisplay()
- {
- int i;
- for(i=0;i<8;i++)
- {
- switch(i)
- {
- case(0):
- A1=1;A2=1;A3=1;break;
- case(1):
- A1=0;A2=1;A3=1;break;
- case(2):
- A1=1;A2=0;A3=1;break;
- case(3):
- A1=0;A2=0;A3=1;break;
- case(4):
- A1=1;A2=1;A3=0;break;
- case(5):
- A1=0;A2=1;A3=0;break;
- case(6):
- A1=1;A2=0;A3=0;break;
- case(7):
- A1=0;A2=0;A3=0;break;
- }
- P0=num[i];
- delay(100);
- P0=0x00;
- }
- }
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