乘矩阵键盘扫描加数码管显示代码

1、4*4矩阵键盘扫描加数码管显示遵义师范学院（工学院）电气工程及其自动化黎卫星/*/º¯ÊýÍ·Îļþ/*/#include<reg51.h>#include<delay.h>#include<ciodziku.h>#include<keyjiance.h>#include<displychushihua.h>/*/Ö÷º¯Êý/*/void main() displaychu

2、shihua(); while(1) num=keyjiance(); dula=1; P0=tablenum-1; dula=0; /*/ÑÓʱº¯Êý/*/void delay(unsigned int z)unsigned int x,y;for(x=z;x>0;x-)for(y=110;y>0;y-);/*/Êý×Ö¿â/*/sbit dula = P26;sbit wela = P27;/*/*/unsigned char code

3、 table=0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00/0x00Ϊ¹Ø±ÕËùÊýÂë¹ÜÏÔʾ ;/*/¼üÅÌɨÃè/*/unsigned int temp,num;/*/*/unsigned int

4、keyjiance()/ unsigned int º¯Êý·µ»ØÖµÀàÐÍ Ê¹ÓÃvoidΪÎÞ·µ»ØÖµ»á³ö´í P3=0XFE; /µÚÒ»Ðмì²

5、â temp=P3; temp=temp&0xf0; while(temp!=0xf0) delay(5); temp=P3; temp=temp&0xf0; while(temp!=0xf0)temp=P3;switch(temp)case 0xee:num=1;break;case 0xde:num=2;break;case 0xbe:num=3;break;case 0x7e:num=4;break;while(temp!=0xf0)/°´¼üËÉÊÖ¼ì

6、8;â temp=P3; temp=temp&0xf0; /dula=1; /P0=tablenum-1;/ dula=0; P3=0XFD; /µÚ¶þÐмì²â temp=P3; temp=temp&0xf0; while(temp!=0xf0) delay(5); temp=P3; temp=temp&0xf0; while(temp!=0xf0)temp=P3;switch(temp)case 0xed:num=5;break;case 0xdd:nu

7、m=6;break;case 0xbd:num=7;break;case 0x7d:num=8;break;while(temp!=0xf0)/°´¼üËÉÊÖ¼ì²â temp=P3; temp=temp&0xf0; /dula=1;/P0=tablenum-1;/ dula=0; P3=0XFB; /µÚÈýÐмì²â temp=P3; temp=temp&

8、;0xf0; while(temp!=0xf0) delay(5); temp=P3; temp=temp&0xf0; while(temp!=0xf0)temp=P3;switch(temp)case 0xeb:num=9;break;case 0xdb:num=10;break;case 0xbb:num=11;break;case 0x7b:num=12;break;while(temp!=0xf0)/°´¼üËÉÊÖ¼ì²â temp=P3; temp=tem

9、p&0xf0;/ dula=1;/ P0=tablenum-1;/ dula=0; P3=0XF7; /µÚËÄÐпªÊ¼¼ì²â temp=P3; temp=temp&0xf0; while(temp!=0xf0) delay(5); temp=P3; temp=temp&0xf0; while(temp!=0xf0)temp=P3;switch(temp)case 0xe7:num=13;break;case 0xd7:num

10、=14;break;case 0xb7:num=15;break;case 0x77:num=16;break;while(temp!=0xf0)/°´¼üËÉÊÖ¼ì²â temp=P3; temp=temp&0xf0; /dula=1;/P0=tablenum-1;/dula=0; return (num);/º¯Êý·µ»ØÖµ / dula=1;/ P0=tablenum-1;/ dula=0; /*/*/void displaychushihua() num=17;/µÚ17¸öÊýΪ¹Ø±ÕËùÓÐÊýÂë¹Ü0x00/dula=1;/P0=0xff;/³õʼ»¯ÇåÁ