mima.rar_瀵嗙爜閿?C

#include<reg51.h> unsigned char code dispbitcode[]={0xfe,0xfd,0xfb,0xf7, 0xef,0xdf,0xbf,0x7f}; unsigned char code dispcode[]={0x3f,0x06,0x5b,0x4f,0x66, 0x6d,0x7d,0x07,0x7f,0x6f, 0x77,0x7c,0x39,0x5e,0x79,0x71, 0x00,0x40,0x73,0xff}; unsigned char k,keycount=0,flashcount=0,errorcount=0,num_bit=6; unsigned char get_num[6]={0}; unsigned char init_num[6]={1,2,3,4,5,6}; bit rightflag=0,alarmflag=0,errorflag=0,keyoverflag=0; unsigned char keys; sbit P1_6=P1^6; sbit P1_7=P1^7; sbit P0_7=P0^7; void main(void) { unsigned char read_keys(unsigned char m); void in_keys(unsigned char x); void check_keys(); void del_keys(); void change_keys(); TMOD=0x01; TH0=(65536-4000) / 256; TL0=(65536-4000) % 256; TR0=1; ET0=1; EA=1; for ( k=4;;k++) { keys=read_keys(k); if ((keys>=0) && (keys<10)) { if(keycount<6) in_keys(keys); else keyoverflag=1; } else if (keys==14) check_keys(); else if (keys==12) { if (keycount>0) del_keys(); else keyoverflag=1; } else if (keys==13) { if (rightflag==1) change_keys(); } else if (keys==10) { rightflag=0; errorflag=0; keycount=0; } else if (keys==11) { alarmflag=0; errorflag=0; rightflag=0; } if (k==7) k=3; } } void t0(void) interrupt 1 using 0 { TR0=0; TH0=(65536-4000) / 256; TL0=(65536-4000) % 256; if (rightflag==1) P1_7=1; else P1_7=0; if (errorflag==1) P0_7=~P0_7; else P0_7=0; if (alarmflag==1) { P1_6=~P1_6; } else P1_6=0; if (keycount==0) { P1=P1 | 0x3f; P2=dispcode[0]; P1=P1 & dispbitcode[0]; } else { P1=P1 |0X3f; P2=dispcode[8]; P1=P1 & dispbitcode[flashcount]; flashcount++; if (flashcount>=keycount) flashcount=0; } TR0=1; } unsigned char read_keys(unsigned char m) { unsigned char temp,i,j,key; P3=dispbitcode[m]; temp=P3; temp=temp & 0x0f; if (temp!=0x0f) { for(i=50;i>0;i--) for(j=200;j>0;j--); temp=P3; temp=temp & 0x0f; if (temp!=0x0f) { temp=P3; P1_6=~P1_6; temp=temp & 0x0f; switch(temp) { case 0x0e: if (m==4) key=7; if (m==5) key=4; if (m==6) key=1; if (m==7) key=15; break; case 0x0d: if (m==4) key=8; if (m==5) key=5; if (m==6) key=2; if (m==7) key=0; break; case 0x0b: if (m==4) key=9; if (m==5) key=6; if (m==6) key=3; if (m==7) key=14; break; case 0x07: if (m==4) key=10; if (m==5) key=11; if (m==6) key=12; if (m==7) key=13; break; } while(temp!=0x0f) { temp=P3; temp=temp & 0x0f; } } } else key=16; return key; } void in_keys(unsigned char x) { get_num[keycount]=x; keycount++; } void check_keys() { unsigned char i=0; while (i<keycount) { if (get_num[i]==init_num[i]) i++; else break; } if (i==num_bit) { rightflag=1; errorflag=0; } else { errorflag=1; rightflag=0; errorcount++; } if (errorcount==3) { alarmflag=1; errorcount=0; } keycount=0; } void del_keys() { keycount--; } void change_keys() { unsigned char num; for ( num=0;num<keycount;num++) init_num[num]=get_num[num]; num_bit=keycount; keycount=0; }