LCD遥控密码锁的设计与制作 毕业论文.doc

0 mechanical sbit scl=p24; sbit fuwei=p36; sbit kai=p10; sbit lcden=p27; sbit lcdrs=p26; sbit w1=p20; sbit w2=p21; sbit w3=p22; sbit w4=p23; uchar num,n=0,temp,count4,flag,date,r;/r记录错误次数 uchar mima4; uchar yuanmima4; uchar tab_key4; bit mimaflag; /密码正确与否的标志 bit xiugaiflag; /修改密码标志 bit enter1flag; /确认密码修改 unsigned char keyvalue; void delay() ; void key_scan(); void key_scan1(); void delay(uint delay) uint h; for(;delay0;delay-) for(h=0;h110;h+) ; void msgbox(unsigned char mode,unsigned char data)/选择写数据 or命令 0为命令 1 为数据 p0=data; if(0=mode) lcdrs=0;/写命令 else lcdrs=1;/写数据 delay(5); lcden=1; delay(5); lcden=0; void lcdchar(unsigned char add,unsigned char ch) if(0!=add) msgbox(0,add); msgbox(1,ch); void lcdstring(unsigned char add,unsigned char *str) int i; msgbox(0,add); for(i=0;*(str+i)!=0i+) msgbox(1,*(str+i); delay(2); void initlcd() lcden=0; msgbox(0,0x38); /显示模式设置 16*2 5*7 8 位 msgbox(0,0x0c); /开关光标显示设置 msgbox(0,0x06);/指针自动+1 msgbox(0,0x01);/清屏 msgbox(0,0x80);/0x80+0x10 /* void start() /开始信号 sda=1; delay(); scl=1; delay(); sda=0; delay(); void stop() /停止 sda=0; delay(); scl=1; delay(); sda=1; delay(); void respons() /应答 uchar i; scl=1; delay(); while(sda=1) scl=0; delay(); void init() /shu shi sda=1; delay(); scl=1; delay(); void write_byte(uchar date) /写到 24c02 uchar i,temp; temp=date; for(i=0;i8;i+) temp=temp1; scl=0; delay(); sda=cy; delay(); scl=1; delay(); scl=0; delay(); sda=1; delay(); uchar read_byte() uchar i,k; scl=0; delay(); sda=1; delay(); for(i=0;i8;i+) scl=1; delay(); k=(k1)|sda; scl=0; delay(); return k; void write_add(uchar address,uchar date) /从单元写 start(); write_byte(0xa0); respons(); write_byte(address); respons(); write_byte(date); respons(); stop(); uchar read_add(uchar address) /从单元读 start(); write_byte(0xa0); respons(); write_byte(address); respons(); start(); write_byte(0xa1); respons(); date=read_byte(); stop(); return date; void mimacmp() uchar i0,i1,i2,i3; i0=i1=i2=i3=0; if(mima0=tab_key0) i0=1; if(mima1=tab_key1) i1=1; if(mima2=tab_key2) i2=1; if(mima3=tab_key3) i3=1; flag=i0*i1*i2*i3; /全为 1密码正确 void key_manage1() tab_keyn=0; n+; if(xiugaiflag=1) mimacount4=0; count4+; void key_manage2() tab_keyn=1; n+; if(xiugaiflag=1) mimacount4=1; count4+; void key_manage3() tab_keyn=2; n+; if(xiugaiflag=1) mimacount4=2; count4+; void key_manage4() tab_keyn=3; n+; if(xiugaiflag=1) mimacount4=3; count4+; void key_manage5() xiugaiflag=1; n=0; void c02int()/24c02初始化 init(); write_add(1,0); delay(100); /init(); write_add(10,0); delay(100); / init(); write_add(20,0); delay(100); / init(); write_add(30,0); delay(100); void key_manage6() /确认件 if(enter1flag=1) c02int(); init(); write_add(1,mima0); delay(100); / init(); write_add(10,mima1); delay(100); / init(); write_add(20,mima2); delay(100); / init(); write_add(30,mima3); delay(100); yuanmima0=mima0=read_add(1); delay(100); yuanmima1=mima1=read_add(10); delay(100); yuanmima2=mima2=read_add(20); delay(100); yuanmima3=mima3=read_add(30); delay(100); enter1flag=xiugaiflag=0; delay(1000); kai=0; lcdstring(0x80,“ password renew “); delay(1000); lcdstring(0x80,“input the pass“); lcdstring(0x80+0x40,“ wode: _ “); void readmima() delay(100); yuanmima0=mima0=read_add(1); delay(100); yuanmima1=mima1=read_add(10); delay(100); yuanmima2=mima2=read_add(20); delay(100); yuanmima3=mima3=read_add(30); delay(100); void intmima() /初始化密码 3333 delay(100); write_add(1,3); delay(100); write_add(10,3); delay(100); write_add(20,3); delay(100); write_add(30,3); delay(100); void gaimimacmp() uchar i0,i1,i2,i3; i0=i1=i2=i3=0; if(mima0=yuanmima0) i0=1; if(mima1=yuanmima1) i1=1; if(mima2=yuanmima2) i2=1; if(mima3=yuanmima3) i3=1; flag=i0*i1*i2*i3;/比较结果 1为正确 void main() w1=w2=w3=w4=0; n=flag=r=kai=0; readmima(); delay(30); initlcd(); lcdstring(0x80,“input the pass “);/开始显示输入密码 lcdstring(0x80+0x40,“ wode: _ “); while(p3=0xff while(1) key_scan1(); key_scan(); if(xiugaiflag=1) if(count4=1) lcdchar(0x80+0x48,*); while(p3=0xff if(count4=2|count4=3) lcdchar(0,*); while(p3=0xff if(count4=4) lcdchar(0,*); delay(10); msgbox(0,0x01);/清屏 flag=0; gaimimacmp(); n=count4=0; if(flag=1) enter1flag=1; flag=n=0; lcdstring(0x80,“change password “); else if(enter1flag=1) lcdstring(0x80,“press the enter“); else flag=n=0;/不正确事件 lcdstring(0x80,“ wrong possword “); delay(1000); xiugaiflag=0; lcdstring(0x80,“input the pass“); lcdstring(0x80+0x40,“ wode: _ “); /修改密码键没按下 if(xiugaiflag=0) if(n=1) lcdchar(0x80+0x48,*);/星号显示 while(p3=0xff if(n=2|n=3) lcdchar(0,*); while(p3=0xff if(n=4) lcdchar(0,*); msgbox(0,0x01);/清屏 mimacmp(); n=0; if(flag=1) lcdstring(0x80,“password is right“); delay(1000); lcdstring(0x80,“input the pass“); lcdstring(0x80+0x40,“ wode: _ “); kai=!kai; r=0; flag=n=0; else lcdstring(0x80,“wrong possword“); r=r+1; /错误次数记录 delay(1000);/显示到重新输入 if(r=3) /判断 3次 while(1) msgbox(0,0x01); lcdstring(0x80,“ three errors “); while(1); lcdstring(0x80,“input the pass“); lcdstring(0x80+0x40,“ wode: _ “); void key_scan() if(p3!=0xff) temp=p3; while(p3!=0xff) switch(temp) case 0xfe: key_manage1(); break; case 0xfd: key_manage2(); break; case 0xfb: key_manage3(); break; case 0xf7: key_manage4(); break; case 0xe