定时器消抖，延时消抖处理按键事件keil工程文件合集

#include <digital.h> #define SCAN_TIME 1 extern unsigned char code table[]={ 0x3F, //"0" 0x06, //"1" 0x5B, //"2" 0x4F, //"3" 0x66, //"4" 0x6D, //"5" 0x7D, //"6" 0x07, //"7" 0x7F, //"8" 0x6F, //"9" 0x77, //"A" 0x7C, //"B" 0x39, //"C" 0x5E, //"D" 0x79, //"E" 0x71, //"F" 0x76, //"H" 0x38, //"L" 0x37, //"n" 0x3E, //"u" 0x73, //"P" 0x5C, //"o" 0x40, //"-" 0x00 //熄灭 }; void delay(unsigned int t) //@11.0592MHz { while(t--) { unsigned char i, j; _nop_(); i = 2; j = 199; do { while (--j); } while (--i); } } void display(unsigned char pos,unsigned char num) { switch (6-pos) { case 0: { P0=0x1f; selCon=1; selCon=0; break; } case 1: { P0=0x2f; selCon=1; selCon=0; break; } case 2: { P0=0x37; selCon=1; selCon=0; break; } case 3: { P0=0x3b; selCon=1; selCon=0; break; } case 4: { P0=0x3d; selCon=1; selCon=0; break; } case 5: { P0=0x3e; selCon=1; selCon=0; break; } } P0=table[num]; datCon=1; datCon=0; delay(SCAN_TIME); } void displayNum(long int number,unsigned char mode) //mode代表进制 { if(number>=0) { unsigned long int f=1; unsigned long int i=1; unsigned char len=0; if(number==0) len=1; while((number/f)!=0) { f=f*mode; len++; } for(f=1;f<=6;f++) { if(f<=len) { display(7-f,(number/i)%mode); i=i*mode; } else display(7-f,23); } } else { unsigned long int f=1; unsigned long int i=1; unsigned char len=0; while(((0-number)/f)!=0) { f=f*mode; len++; } for(f=1;f<=6;f++) { if(f<=len) { display(7-f,((0-number)/i)%mode); i=i*mode; } else display(8-f,23); } display(6-len,22); } }