【《基于单片机的电子密码锁设计（附图）》10000字（论文）】

#include<reg52.h>#include<stdio.h>#include"i2c.h"#include"1602.h"#include"delay.h"#include"keyboard.h"sbitRELAY1=P3^0;sbitLED=P3^1;sbitSPK=P3^2;unsignedcharcodepassword[]={1,2,3,4,5,6,7,8};unsignedcharfrq;//报警声voidbeeb(){unsignedinti;while(1){for(i=0;i<200;i++){DelayUs2x(200); SPK=!SPK; } SPK=0;for(i=0;i<200;i++){DelayMs(1); }}}/*主程序*/main(){unsignedcharnum,i,j;unsignedcharpasswordtemp[16];unsignedcharinputtimes;unsignedcharpasswordlength,PLEN;bitFlag;PLEN=sizeof(password)/sizeof(password[0]);LCD_Init();DelayMs(10);LCD_Clear();LCD_Write_String(0,0,"Welcome!");LCD_Write_String(0,1,"Inputpassword!");while(1){num=KeyPro();if(num!=0xff){if(i==0) LCD_Write_String(0,1,""); if(i<16) {passwordtemp[i]=num;LCD_Write_Char(i,1,'*'); i++;//输入数值累加 if((15==num)||(i==16)) {passwordlength=i-1; i=0;//计数器复位 if(passwordlength==PLEN) { Flag=1; for(j=0;j<PLEN;j++) Flag=Flag&&(passwordtemp[j]==password[j]);}if(Flag) { LCD_Write_String(0,1,"");LCD_Write_String(0,1,"RightOpen!>>>>"); RELAY1=0; LED=0;inputtimes=0;Flag=0; } else { LCD_Write_String(0,1,"");//清除该行 LCD_Write_String(0,1,"Wrong!Retry!");//密码错误，显示屏提示重新输入 inputtimes++;//连续输入错误，则次数累加 if(inputtimes==3) { LCD_Write_String(0,1,""); LCD_Write_String(0,1,"Wrong3times!"); beeb(); while(1); } } }} }}延时程序#include"delay.h"voidDelayUs2x(unsignedchart){while(--t);}voidDelayMs(unsignedchart){while(t--){DelayUs2x(245); DelayUs2x(245);}}1602液晶显示程序#include"1602.h"#include"delay.h"#defineCHECK_BUSYsbitRS=P2^4;//定义端口sbitRW=P2^5;sbitEN=P2^6;#defineRS_CLRRS=0#defineRS_SETRS=1#defineRW_CLRRW=0#defineRW_SETRW=1#defineEN_CLREN=0#defineEN_SETEN=1#defineDataPortP0/*判忙函数*/bitLCD_Check_Busy(void){#ifdefCHECK_BUSYDataPort=0xFF;RS_CLR;RW_SET;EN_CLR;_nop_();EN_SET;return(bit)(DataPort&0x80);#elsereturn0;#endif}/*写入命令函数*/voidLCD_Write_Com(unsignedcharcom){//while(LCD_Check_Busy());//忙则等待DelayMs(5);RS_CLR;RW_CLR;EN_SET;DataPort=com;_nop_();EN_CLR;}/*写入数据函数*/voidLCD_Write_Data(unsignedcharData){//while(LCD_Check_Busy());//忙则等待DelayMs(5);RS_SET;RW_CLR;EN_SET;DataPort=Data;_nop_();EN_CLR;}/*清屏函数*/voidLCD_Clear(void){LCD_Write_Com(0x01);DelayMs(5);}/*写入字符串函数*/voidLCD_Write_String(unsignedcharx,unsignedchary,unsignedchar*s){while(*s) {LCD_Write_Char(x,y,*s);s++;x++; }}/*写入字符函数*/voidLCD_Write_Char(unsignedcharx,unsignedchary,unsignedcharData){if(y==0) { LCD_Write_Com(0x80+x); }else { LCD_Write_Com(0xC0+x); }LCD_Write_Data(Data);}/*初始化函数*/voidLCD_Init(void){LCD_Write_Com(0x38);/*显示模式设置*/DelayMs(5);LCD_Write_Com(0x38);DelayMs(5);LCD_Write_Com(0x38);DelayMs(5);LCD_Write_Com(0x38);LCD_Write_Com(0x08);/*显示关闭*/LCD_Write_Com(0x01);/*显示清屏*/LCD_Write_Com(0x06);/*显示光标移动设置*/DelayMs(5);LCD_Write_Com(0x0C);/*显示开及光标设置*/}矩阵键盘程序#include<reg52.h>#include"keyboard.h"#include"delay.h"#defineKeyPortP1/*按键扫描函数，返回扫描键值*/unsignedcharKeyScan(void)//采用常见的扫描法{unsignedcharcord_h,cord_l;//行列值中间变量KeyPort=0x0f;//行线输出为0cord_h=KeyPort&0x0f;//读入列线值if(cord_h!=0x0f)//先检测有无按键按下{DelayMs(10);//去抖if((KeyPort&0x0f)!=0x0f){cord_h=KeyPort&0x0f;//读入列线值KeyPort=cord_h|0xf0;//输出当前列线值cord_l=KeyPort&0xf0;//读入行线值while((KeyPort&0xf0)!=0xf0);//待按键松开并输出值return(cord_h+cord_l);//键盘最后确定值}}return(0xff);//返回该值}/*按键值处理函数，返回扫键值*/unsignedcharKeyPro(void){switch(KeyScan()){case0x7e:return1;break;//1对应的数字键case0x7d:return2;break;//2case0x7b:return3;break;//3case0xbe:return4;break;//4case0xbd:return5;