基于单片机+mfrc522 RFID+LCD12864射频门禁系统程序 -

#include "reg52.h"
#include "mfrc522.h"
#include <string.h>
#include <12864.h>
#include <i2c.h>
#include <waishe.h>
#include <key.h>
unsigned char aaddrr,addr;
unsigned char eepromreadnum[4];
char returnkey=1;
void Timer0Init() //定时器0初始化
{
EA=0;//打开总中断
ET0=1;//打开定时器0中断允许
TR0=1;//打开定时器
TMOD|=0X01;//选择为定时器0模式，工作方式1，仅用TR0打开启动。
TH0=0XFC; //给定时器赋初值，定时1ms
TL0=0X18;
}
void main( )
{
int failflag,y,successflag;
int KeyValue=12;
beep=0;
RFID_Init();
LCDInit();
Timer0Init();
if(At24c02Read(255)!=0x65) //eeprom初次上电初始化
{
delay(1000);
ShowQQChar(0x82,"初次上电",4);
ShowQQChar(0x91,"初始化中...",6);
ShowQQChar(0x8a,"请稍等",3);
for(y=0;y<255;y++)
{
At24c02Write(y,0xff); //eeprom区全部清零
delay(1000);
}
At24c02Write(255,0x65);
delay(1000);
At24c02Write(248,0x25);
delay(1000);
At24c02Write(249,0x28);
delay(1000);
At24c02Write(250,0xa5);
delay(1000);
At24c02Write(251,0x51);
delay(1000);
}
while(1)
{
unsigned char status,i,k;
k=0;
LCD_show();
status = PcdRequest(PICC_REQIDL, g_ucTempbuf);//寻天线区内未进入休眠状态的卡
if (status != MI_OK)
{
PcdReset();
PcdAntennaOff();
PcdAntennaOn();
continue;
}
status = PcdAnticoll(g_ucTempbuf); //防冲撞，此时g_ucTempbuf的值为卡号
if(status != MI_OK)
continue;
////////卡号打印////////////////////////
led1=0;
WRCommand(0x01); //清除显示 DDRAM
ShowQQChar(0x90,"卡号：",3);
while(aaddrr<252) //卡号比对程序段
{
k=0;
for(i=0;i<4;i++) //卡号占用四个地址，比对四次
{
eepromreadnum[i]=At24c02Read(aaddrr); //读取EEPROM地址1内的数据保存在 g_ucTempbuf[]中
aaddrr++;
ShowNUMChar(0x93+i,g_ucTempbuf[i]); //显示卡号
if(eepromreadnum[i]==g_ucTempbuf[i]) //卡号开始进行比对
{
k=k+i; //四次比对成功0+1+2+3
delay(1000);
}
else k=0; //比对失败
if(k==6)
{
failflag=0;
aaddrr=252;
}
}
}
aaddrr=0; //地址回到首位，以便下次比较
if(k==6) //卡号对比成功
{
relay=0;
ShowQQChar(0x8a,"请通过\xfd",3);
beep_Init(1);
}
if(k!=6) //卡号对比失败
{
beep_Init(0);
delay(50000);
WRCommand(0x01);
failflag=1; //卡号对比失败标志位
}
if(failflag==1)
{
ShowQQChar(0x91,"是否输入密码",6);
ShowQQChar(0x8a,"添加卡号",4);
delay(500);
while(returnkey)
{
EA=0;
KeyValue=KeyDown();
if(KeyValue==11)
{
WRCommand(0x01);
delay(10000);
successflag=inputmima(); //密码输入函数
delay(10000);
WRCommand(0x01);
delay(1000);
if(successflag==1)
{
for(i=0;i<4;i++) //显示卡号 g_ucTempbuf[] 所刷卡的卡号
{
ShowNUMChar(0x92+i,g_ucTempbuf[i]);
At24c02Write(addr,g_ucTempbuf[i]); //将卡号存入eeprom中，addr为存入地址
addr++;
delay(1000);
}
delay(10000);
WRCommand(0x01);
ShowQQChar(0x92,"存储成功",4);
delay(10000);
}
returnkey=0;
}
else if(KeyValue==10)
returnkey=0;
else
EA=1;
}
}
returnkey=1;
delay(70000); //延时等待
WRCommand(0x01); //清除显示 DDRAM
led1=1;
relay=1;
}
}
void Timer0() interrupt 1
{
static u16 i;
TH0=0XFC; //给定时器赋初值，定时1ms
TL0=0X18;
i++;
if(i==5000)
{
i=0;
returnkey=0;
}
}

复制代码