按下16个矩阵键盘依次在数码管上显示1-16的平方.doc

按下16个矩阵键盘依次在数码管上显示1-16的平方Proteus 仿真原理图：程序：/*3,按下16个矩阵键盘依次在数码管上显示1-16的平方。如按下第一个显示1，第二个显示4. */#include#define uchar unsigned char#define uint unsigned intuchar code table1=0xfc,0x60,0xda,0xf2,0x66,0xb6,0xbe,0xe0,0xfe,0xf6;uchar code table2=0x1f,0x2f,0x37;void delay(uint);void keyscan();void display(uint);void main()while(1)keyscan();/display(16);void delay(uint z)uint x,y;for(x=z;x0;x-)for(y=110;y0;y-);void keyscan()uchar temp,key;P3=0xfe;temp=P3;temp=temp&0xf0;if(temp!=0xf0)delay(10);temp=P3;temp=temp&0xf0;if(temp!=0xf0)temp=P3;switch(temp)case 0xee:key=1;break;case 0xde:key=2;break;case 0xbe:key=3;break;case 0x7e:key=4;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xfd;temp=P3;temp=temp&0xf0;if(temp!=0xf0)delay(10);temp=P3;temp=temp&0xf0;if(temp!=0xf0)temp=P3;switch(temp)case 0xed:key=5;break;case 0xdd:key=6;break;case 0xbd:key=7;break;case 0x7d:key=8;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xfb;temp=P3;temp=temp&0xf0;if(temp!=0xf0)delay(10);temp=P3;temp=temp&0xf0;if(temp!=0xf0)temp=P3;switch(temp)case 0xeb:key=9;break;case 0xdb:key=10;break;case 0xbb:key=11;break;case 0x7b:key=12;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;P3=0xf7;temp=P3;temp=temp&0xf0;if(temp!=0xf0)delay(10);temp=P3;temp=temp&0xf0;if(temp!=0xf0)temp=P3;switch(temp)case 0xe7:key=13;break;case 0xd7:key=14;break;case 0xb7:key=15;break;case 0x77:key=16;break;while(temp!=0xf0)temp=P3;temp=temp&0xf0;display(key*key);void display(uint z)uchar aa,bb,cc;aa=z/100;bb=z%100/10;cc=z%10;P1=table1aa;P2=table22;delay(1);P2=0xff;delay(1);P1=table1bb;P2=ta