关于键盘的几个程序.docVIP

关于键盘的几个程序 1、 #includereg52.h #define uchar unsigned char #define uint unsigned int sbit wela=P2^7; sbit dula=P2^6; sbit led=P1^0; sbit key1=P3^4; uchar num=0; uchar code table[]= {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; void delay(uint); void main() { P3=0xff; P0=0xfe; wela=1; wela=0; while(1) { if(key1==0) delay(10); if(key1==0) { led=0; num++; if(num==10) num=0; P0=table[num]; dula=1; dula=0; while(!key1); delay(10); while(!key1); } else led=1; // P0=table[num]; // dula=1; // dula=0; } } void delay(uint z) { uint x,y; for(x=z;x0;x--) for(y=110;y0;y--); } 2、 #includereg52.h #define uchar unsigned char #define uint unsigned int sbit wela=P2^7; sbit dula=P2^6; sbit key1=P3^4; sbit key2=P3^5; sbit key3=P3^6; sbit key4=P3^7; uchar code table[]= {0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07, 0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71}; uchar code we[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f}; uchar shi,ge; uint num=0,num1; void Delay(uint t); void display(uint numdis); void keyscan(); void inti(); void main() { inti(); while(1) { display(num); keyscan(); } } void display(uint numdis) { shi= numdis/10; ge= numdis%10; P0=table[shi]; dula=1; dula=0; P0=0xfe; wela=1; wela=0; Delay(200); P0=table[ge]; dula=1; dula=0; P0=0xfd; wela=1; wela=0; Delay(200); } void inti() { TH0=(65536-50000)/256; TL0=(65536-50000)%256; TMOD=1; EA=1; ET0=1; } void keyscan() { if(key1==0) { Delay(2000); if(key1==0) { num++; if(num==60) num=0; while(!key1); } } if(key2==0) { Delay(2000); if(key2==0) { if(num==0) num=60; while(!key2); num--; } } if(key3==0) { Delay(2000); if(key3==0) { num=0; while(!key3); } } if(key4==0) { Delay(2000); if(key4==0) { while(!key4); TR0=~TR0; } } } void Delay(uint t) { while(--t); } void T0_time() interrupt 1 { T