指纹识别模块程序及原理图

程序：

#include

#include

#define uchar unsigned char

#define uint unsigned int

#define Dbus P0

#define buffer1ID 0x01

#define buffer2ID 0x02

#define queren 0x88

#define tuichu 0x84

#define shanchu 0x82

sbit B0=B^0;

sbit B7=B^7;

sbit jidianqi=P3^6;

sbit RS=P2^2;

sbit RW=P2^1;

sbit E1=P2^0;

sbit LEDK=P3^4; //控制背光

sbit SCLK=P2^3;

sbit IO=P2^5;

sbit RST=P2^4;

uchar code ta[8]={0x00,0x51,0x09,0x10,0x05,0x02,0x11,0xbe}; uchar data a[7]; // 秒分时日月星期年

uchar dz[4]; //存键输入值

uchar mima[7];

uchar mimaID[6]={1,2,3,4,5,6};

uchar data K;

uchar data Key;

uint PageID;

uchar data querenma;

uchar sum[2];

int summaf,summas;

uchar code nian[]={"年"};

uchar code yue[]={"月"};

uchar code ri[]={"日"};

uchar code xinqi[]={"星期"};

uchar code mao=0x3a;

unsigned char code text1[]={" 请按指纹"};

unsigned char code text2[]={" 请再次按指纹"};

unsigned char code text3[]={" 指纹采集成功"};

unsigned char code text4[]={"请按任意键继续"};

unsigned char code text5[]={" 指纹采集失败"};

unsigned char code text6[]={"输入删去的指纹号"};

unsigned char code text7[]={" 删指纹号成功"};

unsigned char code text8[]={"按键一：增加指纹"};

unsigned char code text9[]={"按键二：删去指纹"};

unsigned char code text10[]={" 请重新按指纹"};

unsigned char code text11[]={"清空指纹库成功"};

unsigned char code text12[]={" 没搜索到指纹"};

unsigned char code text13[]={"请先按键再刷指纹"};

unsigned char code text14[]={" 请重新操作"};

unsigned char code text15[]={" 删去失败"};

unsigned char code text16[]={" 接收包出错"};

unsigned char code text17[]={" 编号为："};

unsigned char code text18[]={"指纹已找到请进"};

unsigned char code text19[]={" 该指纹已存储"};

unsigned char code text20[]={" 请输入密码"};

unsigned char code text21[]={" 密码错误"};

unsigned char code text22[]={"按键三：更新密码"}; // @@@ unsigned char code text23[]={"请再次输入密码"};

unsigned char code text24[]={"两次输入的密码不"};

unsigned char code text25[]={"一致，请重新操作"};

unsigned char code text26[]={" 密码更新成功"};

另外：

void delay(uint tt)

{ uchar i;

while(tt--)

{

for(i=0;i<125;i++);

}

}

void initialize51()

{

SCON= 0x50; //串口方式1 //REN=1; 允许接收

PCON=0x80; //SMOD=1

TMOD= 0x20; //定时器1定时方式2

TH1= 0xff; //11.0592MHz 模块默认波特率为57600bps TL1= 0xff;

TR1= 1; //启动定时器

}

unsigned char Keycan(void) //按键扫描程序P1.0--P1.3为行线P1.4--P1.7为列线{

unsigned char rcode, ccode;

P1 = 0xF0; // 发全0行扫描码，列线输入

if((P1&0xF0) != 0xF0) // 若有键按下

{

delay(1);// 延时去抖动

if((P1&0xF0) != 0xF0)

{ rcode = 0xFE; // 逐行扫描初值

while((rcode&0x10) != 0)

{

P1 = rcode; // 输出行扫描码

if((P1&0xF0) != 0xF0) // 本行有键按下

{

ccode = (P1&0xF0)|0x0F;

//do{;}

while((P1&0xF0) != 0xF0); //等待键释放

return ((~rcode) + (~ccode)); // 返回键编码

}

else

rcode = (rcode<<1)|0x01; // 行扫描码左移一位

}

}

}

return 0; // 无键按下，返回值为0

}

void KeyDeal(unsigned char Key)

{ //unsigned char n;

if(Key!=0)

{

switch(Key)

{

case 0x11: K=1; break;

case 0x21: K=2; break;