AS608 指紋識別模塊主要是指采用了杭州晟元芯片技術有限公司(Synochip)的 AS608 指紋識別芯片 而做成的指紋模塊,模塊廠商只是基于該芯片設計外圍電路,集成一個可供2次開發的指紋模塊;所以,只要是基于AS608芯片的指紋模塊,其控制電路及控制協議幾乎是一樣的,只是廠家和性能不同而已。
制作出來的實物圖如下:
1.png (544.35 KB, 下載次數: 61)
下載附件
2020-6-17 22:52 上傳
單片機源程序如下:
- #include<reg52.h>
- #include<intrins.h>
- #define MAIN_Fosc 11059200//宏定義主時鐘頻率
- #define LINE1 0x80 //1602屏地址定義 第一行地址
- #define LINE2 0xc0 //1602屏地址定義 第二行地址
- #define DataPort P0 //LCD1602操作位定義
- typedef unsigned char INT8U;
- typedef unsigned char uchar;
- typedef unsigned int INT16U;
- typedef unsigned int uint;
- sbit EN = P3^4; //讀寫數據使能 0:停止 1:啟動
- sbit RS = P3^5; //寄存器選擇 0:指令寄存器 1:數據寄存器
- sbit RW = P3^6; //讀寫控制 0:寫 1:讀
- sbit KEY_DOWN=P2^4;
- sbit KEY_OK=P2^2;
- sbit KEY_CANCEL=P2^0;
- sbit beep=P2^6;
- uchar flag=0;
- extern char local_date=0; //全局變量,當前箭頭位置
- extern unsigned int finger_id = 0;
- //uart 函數
- void Uart_Init(void)
- {
- SCON=0x50; //UART方式1:8位UART; REN=1:允許接收
- PCON=0x00; //SMOD=0:波特率不加倍
- TMOD=0x20; //T1方式2,用于UART波特率
- TH1=0xFD;
- TL1=0xFD; //UART波特率設置:FDFD,9600;FFFF,57600
- TR1=1; //允許T1計數
- EA=1; //開總中斷
- }
- void Uart_Send_Byte(unsigned char c)//UART Send a byte
- {
- SBUF = c;
- while(!TI); //發送完為1
- TI = 0;
- }
- unsigned char Uart_Receive_Byte()//UART Receive a byteg
- {
- unsigned char dat;
- while(!RI); //接收完為1
- RI = 0;
- dat = SBUF;
- return (dat);
- }
- //延時函數
- void Delay_us(int i)
- {
- while(--i);
- }
- void Delay_ms(INT16U ms)
- {
- INT16U i;
- do{
- i = MAIN_Fosc / 96000;
- while(--i); //96T per loop
- }while(--ms);
- }
- //蜂鳴器函數
- void Beep_Times(unsigned char times)
- {
- unsigned char i=0;
- for(i=0;i<times;i++)
- {
- beep=0;
- Delay_ms(200);
- beep=1;
- Delay_ms(200);
- }
- }
- //按鍵操作函數
- void Key_Init(void)
- {
- //定義按鍵輸入端口
- KEY_DOWN=1; // 下一項
- KEY_OK=1; // 確認
- KEY_CANCEL=1; // 取消
- }
- // 1602液晶函數
- //寫指令
- void LCD1602_WriteCMD(unsigned char cmd)
- {
- EN=0;
- RS=0;
- RW=0;
- Delay_us(10);
- EN=1;
- Delay_us(10);
- DataPort=cmd;
- Delay_us(10);
- EN=0;
- }
- //寫數據
- void LCD1602_WriteDAT(unsigned char dat)
- {
- EN=0;
- RS=1;
- RW=0;
- Delay_us(10);
- EN=1;
- Delay_us(10);
- DataPort=dat;
- Delay_us(10);
- EN=0;
- }
- //液晶繁忙檢測
- void LCD1602_CheckBusy(void)
- {
-
- uchar busy;
- DataPort=0xff;
- RS=0;
- RW=1;
- do
- {
- EN=1;
- busy=DataPort;
- EN=0;
- }while(busy&0x80);
-
- }
- //液晶初始化函數
- void LCD1602_Init(void)
- {
- Delay_ms(15); //上電延時15ms
- LCD1602_WriteCMD(0x38); //寫顯示指令(不檢測忙信號)
- Delay_ms(5);
- LCD1602_CheckBusy();
- LCD1602_WriteCMD(0x38); //寫顯示指令
- LCD1602_CheckBusy();
- LCD1602_WriteCMD(0x01); //清屏
- LCD1602_CheckBusy();
- LCD1602_WriteCMD(0x06); //顯示光標移動設置
- LCD1602_CheckBusy();
- LCD1602_WriteCMD(0x0c); //顯示開及光標設置
- }
- //液晶顯示函數 入口參數:addr起始地址,pointer指針地址,index下標,num個數
- void LCD1602_Display(unsigned char addr,unsigned char* pointer,unsigned char index,unsigned char num)
- {
- unsigned char i;
- LCD1602_CheckBusy(); //判斷忙信號
- LCD1602_WriteCMD(addr); //寫入地址
- for(i=0;i<num;i++) //寫入數據
- {
- LCD1602_CheckBusy(); //判斷忙信號
- LCD1602_WriteDAT(pointer[index+i]);//寫入數據
- }
- }
- //AS608指紋模塊
- volatile unsigned char AS608_RECEICE_BUFFER[32]; //volatile:系統總是重新從它所在的內存讀取數據,即使它前面的指令剛剛從該處讀取過數據
- //FINGERPRINT通信協議定義
- code unsigned char AS608_Get_Device[10] ={0x01,0x00,0x07,0x13,0x00,0x00,0x00,0x00,0x00,0x1b};//口令驗證
- code unsigned char AS608_Pack_Head[6] = {0xEF,0x01,0xFF,0xFF,0xFF,0xFF}; //協議包頭
- code unsigned char AS608_Get_Img[6] = {0x01,0x00,0x03,0x01,0x00,0x05}; //獲得指紋圖像
- code unsigned char AS608_Get_Templete_Count[6] ={0x01,0x00,0x03,0x1D,0x00,0x21 }; //獲得模版總數
- code unsigned char AS608_Search[11]={0x01,0x00,0x08,0x04,0x01,0x00,0x00,0x03,0xE7,0x00,0xF8}; //搜索指紋搜索范圍0 - 999,使用BUFFER1中的特征碼搜索
- code unsigned char AS608_Search_0_9[11]={0x01,0x00,0x08,0x04,0x01,0x00,0x00,0x00,0x13,0x00,0x21}; //搜索0-9號指紋
- code unsigned char AS608_Img_To_Buffer1[7]={0x01,0x00,0x04,0x02,0x01,0x00,0x08}; //將圖像放入到BUFFER1
- code unsigned char AS608_Img_To_Buffer2[7]={0x01,0x00,0x04,0x02,0x02,0x00,0x09}; //將圖像放入到BUFFER2
- code unsigned char AS608_Reg_Model[6]={0x01,0x00,0x03,0x05,0x00,0x09}; //將BUFFER1跟BUFFER2合成特征模版
- code unsigned char AS608_Delete_All_Model[6]={0x01,0x00,0x03,0x0d,0x00,0x11};//刪除指紋模塊里所有的模版
- volatile unsigned char AS608_Save_Finger[9]={0x01,0x00,0x06,0x06,0x01,0x00,0x0B,0x00,0x19};//將BUFFER1中的特征碼存放到指定的位置
- //code unsigned char AS608_num_of_finger_in_lib1[7]={0x01,0x00,0x04,0x1F,0x00,0x00,0x24};//查看指紋庫的命令
- //code unsigned char AS608_num_of_finger_in_lib2[7]={0x01,0x00,0x04,0x1F,0x01,0x00,0x25};
- //code unsigned char AS608_num_of_finger_in_lib3[7]={0x01,0x00,0x04,0x1F,0x02,0x00,0x26};
- //code unsigned char AS608_num_of_finger_in_lib4[7]={0x01,0x00,0x04,0x1F,0x03,0x00,0x27};
- //發送包頭
- void AS608_Cmd_Send_Pack_Head(void)
- {
- int i;
- for(i=0;i<6;i++) //包頭
- {
- Uart_Send_Byte(AS608_Pack_Head[i]);
- }
- }
- //發送指令
- void AS608_Cmd_Check(void)
- {
- int i=0;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<10;i++)
- {
- Uart_Send_Byte(AS608_Get_Device[i]);
- }
- }
- //接收反饋數據緩沖
- void AS608_Receive_Data(unsigned char ucLength)
- {
- unsigned char i;
- for (i=0;i<ucLength;i++)
- AS608_RECEICE_BUFFER[i] = Uart_Receive_Byte();
- }
- //FINGERPRINT_獲得指紋圖像命令
- void AS608_Cmd_Get_Img(void)
- {
- unsigned char i;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<6;i++) //發送命令 0x1d
- {
- Uart_Send_Byte(AS608_Get_Img[i]);
- }
- }
- //將圖像轉換成特征碼存放在Buffer1中
- void FINGERPRINT_Cmd_Img_To_Buffer1(void)
- {
- unsigned char i;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<7;i++) //發送命令 將圖像轉換成 特征碼 存放在 CHAR_buffer1
- {
- Uart_Send_Byte(AS608_Img_To_Buffer1[i]);
- }
- }
- //將圖像轉換成特征碼存放在Buffer2中
- void FINGERPRINT_Cmd_Img_To_Buffer2(void)
- {
- unsigned char i;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<7;i++) //發送命令 將圖像轉換成 特征碼 存放在 CHAR_buffer1
- {
- Uart_Send_Byte(AS608_Img_To_Buffer2[i]);
- }
- }
- //搜索全部用戶999枚
- void AS608_Cmd_Search_Finger(void)
- {
- unsigned char i;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<11;i++)
- {
- Uart_Send_Byte(AS608_Search[i]);
- }
- }
- //轉換成特征碼
- void AS608_Cmd_Reg_Model(void)
- {
- unsigned char i;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<6;i++)
- {
- Uart_Send_Byte(AS608_Reg_Model[i]);
- }
- }
- //刪除指紋模塊里的所有指紋模版
- void FINGERPRINT_Cmd_Delete_All_Model(void)
- {
- unsigned char i;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<6;i++) //命令刪除指紋模版
- {
- Uart_Send_Byte(AS608_Delete_All_Model[i]);
- }
- }
- //保存指紋
- void AS608_Cmd_Save_Finger( unsigned int storeID )
- {
- unsigned long temp = 0;
- unsigned char i;
- AS608_Save_Finger[5] =(storeID&0xFF00)>>8;
- AS608_Save_Finger[6] = (storeID&0x00FF);
- for(i=0;i<7;i++) //計算校驗和
- temp = temp + AS608_Save_Finger[i];
- AS608_Save_Finger[7]=(temp & 0x00FF00) >> 8; //存放校驗數據
- AS608_Save_Finger[8]= temp & 0x0000FF;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<9;i++)
- Uart_Send_Byte(AS608_Save_Finger[i]); //發送命令 將圖像轉換成 特征碼 存放在 CHAR_buffer1
- }
- //查看當前指紋庫中指紋模板數
- int AS608_number_of_fingers()
- {
- int num=1;//默認模板庫中有一個模板
- uchar i=0;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<6;i++)
- {
- Uart_Send_Byte(AS608_Get_Templete_Count[i]);
- }
- AS608_RECEICE_BUFFER[9]=1;//方便后續判斷是否接收成功
- AS608_Receive_Data(14);//接收數據
- if(AS608_RECEICE_BUFFER[9]==0) //接收成功
- {
- num=AS608_RECEICE_BUFFER[10]*256+AS608_RECEICE_BUFFER[11];//拼接模板總個數
- }
- return num;
- }
- //另一種方法查看指紋庫中是否有模板 //本來應該查看所有1000個模板位置是否存在模板,但一般只用得到前256個,故從簡
- /*
- uchar AS608_notEmpty()
- {
- uchar exist=0;
- char i=0;
- AS608_Cmd_Send_Pack_Head(); //發送通信協議包頭
- for(i=0;i<7;i++)
- {
- Uart_Send_Byte(AS608_num_of_finger_in_lib1[i]);
- }
- AS608_Receive_Data(10);//接收前10byte數據,除第10字節的確認碼外,其余全部丟棄
- if(AS608_RECEICE_BUFFER[9]==0) //接收成功
- {
- AS608_Receive_Data(32);//接收后續32byte數據,此即0~255個模板為是否存在指紋模板的數據
- for(i=0;i<32;i++)//查看這32byte數據,任何一個位置存在模板則返回值為真,否則為假
- {
- if(AS608_RECEICE_BUFFER[i])
- exist=1;
- }
- return exist;
- }
- }
- */
- //添加指紋
- void AS608_Add_Fingerprint()
- {
- unsigned char id_show[]={0,0,0};
- LCD1602_WriteCMD(0x01); //清屏
- while(1)
- {
- LCD1602_Display(0x80," Add finger ",0,16);
- LCD1602_Display(0xc0," ID is ",0,16);
- //按返回鍵直接回到主菜單
- if(KEY_CANCEL == 0)
- {
- Delay_ms(5);
- if(KEY_CANCEL == 0)
- {
- while(KEY_CANCEL==0);
- break;
- }
- }
- //按切換鍵指紋iD值加1
- if(KEY_DOWN == 0)
- {
- Delay_ms(5);
- if(KEY_DOWN == 0)
- {
- while(KEY_DOWN==0);
- if(finger_id == 1000)
- {
- finger_id = 1;
- }
- else
- finger_id = finger_id + 1;
- }
- }
- //指紋iD值顯示處理
- LCD1602_WriteCMD(0xc0+10);
- LCD1602_WriteDAT(finger_id/100+48);
- LCD1602_WriteDAT(finger_id%100/10+48);
- LCD1602_WriteDAT(finger_id%100%10+48);
- //按確認鍵開始錄入指紋信息
- if(KEY_OK == 0)
- {
- Delay_ms(5);
- if(KEY_OK == 0)
- {
- while(KEY_OK==0);
- LCD1602_Display(0x80," Please finger ",0,16);
- LCD1602_Display(0xc0," ",0,16);
- while(KEY_CANCEL == 1)
- {
- //按下返回鍵退出錄入返回fingerID調整狀態
- if(KEY_CANCEL == 0)
- {
- Delay_ms(5);
- if(KEY_CANCEL == 0)
- {
- while(KEY_CANCEL==0);
- break;
- }
-
- }
- AS608_Cmd_Get_Img(); //獲得指紋圖像
- AS608_Receive_Data(12);
- //判斷接收到的確認碼,等于0指紋獲取成功
- if(AS608_RECEICE_BUFFER[9]==0)
- {
- Delay_ms(100);
- FINGERPRINT_Cmd_Img_To_Buffer1();
- AS608_Receive_Data(12);
- LCD1602_Display(0x80,"Successful entry",0,16);
- Beep_Times(1);
- Delay_ms(1000);
- LCD1602_Display(0x80," Please finger ",0,16);
- LCD1602_Display(0xc0," ",0,16);
- while(1)
- {
- if(KEY_CANCEL == 0)
- {
- Delay_ms(5);
- if(KEY_CANCEL == 0)
- {
- while(KEY_CANCEL==0);
- break;
- }
- }
- AS608_Cmd_Get_Img(); //獲得指紋圖像
- AS608_Receive_Data(12);
- //判斷接收到的確認碼,等于0指紋獲取成功
- if(AS608_RECEICE_BUFFER[9]==0)
- {
- Delay_ms(200);
- LCD1602_Display(0x80,"Successful entry",0,16);
- LCD1602_Display(0xc0," ID is ",0,16);
- //指紋iD值顯示處理
- LCD1602_WriteCMD(0xc0+10);
- LCD1602_WriteDAT(finger_id/100+48);
- LCD1602_WriteDAT(finger_id%100/10+48);
- LCD1602_WriteDAT(finger_id%100%10+48);
- FINGERPRINT_Cmd_Img_To_Buffer2();
- AS608_Receive_Data(12);
- AS608_Cmd_Reg_Model();//轉換成特征碼
- AS608_Receive_Data(12);
- AS608_Cmd_Save_Finger(finger_id);
- AS608_Receive_Data(12);
- Beep_Times(1);
- Delay_ms(1000);
- finger_id=finger_id+1;
- break;
- }
- }
- break;
- }
- }
- }
- }
- }
- }
- //搜索指紋
- void AS608_Find_Fingerprint()
- {
- unsigned int find_fingerid = 0;
- unsigned char id_show[]={0,0,0};
- do
- {
- LCD1602_Display(0x80," Please finger ",0,16);
- LCD1602_Display(0xc0," ",0,16);
- AS608_Cmd_Get_Img(); //獲得指紋圖像
- AS608_Receive_Data(12);
- //判斷接收到的確認碼,等于0指紋獲取成功
- if(AS608_RECEICE_BUFFER[9]==0)
- {
- Delay_ms(100);
- FINGERPRINT_Cmd_Img_To_Buffer1();
- AS608_Receive_Data(12);
- AS608_Cmd_Search_Finger();
- AS608_Receive_Data(16);
- if(AS608_RECEICE_BUFFER[9] == 0) //搜索到
- {
- //解鎖成功//
-
- LCD1602_Display(0x80," Search success ",0,16);
- LCD1602_Display(0xc0," ID is ",0,16);
- Beep_Times(1);
- //拼接指紋ID數
- find_fingerid = AS608_RECEICE_BUFFER[10]*256 + AS608_RECEICE_BUFFER[11];
- //指紋iD值顯示處理
- LCD1602_WriteCMD(0xc0+10);
- LCD1602_WriteDAT(find_fingerid/100+48);
- LCD1602_WriteDAT(find_fingerid%100/10+48);
- LCD1602_WriteDAT(find_fingerid%100%10+48);
- //配置IO口,執行開鎖操作
- if(flag)
- {
- P1=0xfe;
- Delay_ms(3800);
- P1=0xff; //電動機停止轉動
- Delay_ms(1000);
- P1=0xfd; //電動機反轉復位
- Delay_ms(3600);//電機正轉阻力遠大于反轉,旋轉相同角度時,正轉需要更多時間
- P1=0xff; //電動機停止轉動
- }
- flag=1; //允許后續相關操作:添加或刪除指紋模板
- break;
- }
- else //沒有找到
- {
- LCD1602_Display(0x80," Search failed ",0,16);
- LCD1602_Display(0xc0," ",0,16);
- Beep_Times(3);
- }
- }
- }while(KEY_CANCEL == 1);
- }
- //刪除所有存貯的指紋庫
- void AS608_Delete_All_Fingerprint()
- {
- unsigned char i=0;
- LCD1602_Display(0x80," empty all ",0,16);
- LCD1602_Display(0xc0," Yes or no ? ",0,16);
- do
- {
- if(KEY_OK==0)
- {
- Delay_ms(5);
- if(KEY_OK==0)
- {
- while(KEY_OK==0);
- LCD1602_Display(0x80," emptying ",0,16);
- LCD1602_Display(0xc0," ",0,16);
- Delay_ms(300);
- LCD1602_WriteCMD(0xc0);
- for(i=0;i<16;i++)
- {
- LCD1602_WriteDAT(42);// 即'*'
- Delay_ms(100);
- }
- FINGERPRINT_Cmd_Delete_All_Model();
- AS608_Receive_Data(12);
- LCD1602_Display(0x80," All empty ",0,16);
- LCD1602_Display(0xc0," ",0,16);
- Beep_Times(3);
- break;
- }
- }
- }while(KEY_CANCEL==1);
- }
- void Device_Check(void)
- {
- unsigned char i=0;
- AS608_RECEICE_BUFFER[9]=1; //串口數組第九位可判斷是否通信正常
- LCD1602_Display(0xc0,"Loading",0,7); //設備加載中界面
- for(i=0;i<8;i++) //進度條式更新,看起來美觀
- {
- LCD1602_WriteDAT(42); //42對應ASIC碼的 *
- Delay_ms(20); //控制進度條速度
- }
- LCD1602_Display(0xc0,"Docking failure",0,16); //液晶先顯示對接失敗,如果指紋模塊插對的話會將其覆蓋
- AS608_Cmd_Check(); //單片機向指紋模塊發送校對命令
- AS608_Receive_Data(12); //將串口接收到的數據轉存
- if(AS608_RECEICE_BUFFER[9] == 0) //判斷數據低第9位是否接收到0
- {
- LCD1602_Display(0xc0,"Docking success",0,16); //符合成功條件則顯示對接成功
- }
- }
- //主函數
- void main()
- {
- finger_id=0;
- LCD1602_Init(); //初始化液晶
- LCD1602_Display(0x80,"Fingerprint Test",0,16); //液晶開機顯示界面
- Uart_Init(); //初始化串口
- Key_Init(); //初始化按鍵
- Delay_ms(200); //延時500MS,等待指紋模塊復位
- Device_Check(); //校對指紋模塊是否接入正確,液晶做出相應的提示
- Delay_ms(1000); //對接成功界面停留一定時間
- while(1)
- {
-
- /**************進入主功能界面****************/
- LCD1602_Display(0x80," search finger ",0,16); //第一排顯示搜索指紋
- LCD1602_Display(0xc0," Add delete",0,16); //添加和刪除指紋
- if(local_date==0)
- {
- LCD1602_Display(0x80, " *",0,2);
- LCD1602_Display(0xc0, " ",0,2);
- LCD1602_Display(0xc0+8," ",0,2);
- }
- else if(local_date==1)
- {
- LCD1602_Display(0x80, " ",0,2);
- LCD1602_Display(0xc0, " *",0,2);
- LCD1602_Display(0xc0+8," ",0,2);
- }
- else if(local_date==2)
- {
- LCD1602_Display(0x80, " ",0,2);
- LCD1602_Display(0xc0, " ",0,2);
- LCD1602_Display(0xc0+8," *",0,2);
- }
- //確認鍵
- if(KEY_OK == 0)
- {
- Delay_ms(5);
- if(KEY_OK == 0)
- {
- while(KEY_OK == 0);//等待松開按鍵
- switch(local_date)
- {
- case 0: //搜索指紋
- flag=1;
- AS608_Find_Fingerprint();
- break;
-
- case 1: //添加指紋
- flag=1; //flag=1,若指紋庫為空,則可以直接添加指紋
- if(AS608_number_of_fingers())
- {
- flag=0;//flag置0由兩重作用:
- //1、指紋庫中已有指紋,則需要搜索匹配成功,由AS608_Find_Fingerprint()將flag置1,才能添加指紋
- //2、flag=0,則在搜索指紋成功后不執行開鎖操作
- AS608_Find_Fingerprint();
- }
- if(flag)
- {
- AS608_Add_Fingerprint();
- }
- break;
-
- case 2: //清空指紋
- flag=0; //1、在搜索指紋成功后不執行開鎖操作;2、若搜索不成功,不執行清空操作
- AS608_Find_Fingerprint();//搜索匹配成功后,函數內部將flag置1,才能清空指紋庫
- if(flag)
- {
- AS608_Delete_All_Fingerprint();
- }
- break;
- }
- }
- }
- //切換鍵
- if(KEY_DOWN == 0)
- {
- Delay_ms(5);
- if(KEY_DOWN == 0)
- {
- while(KEY_DOWN == 0); //等待松開按鍵
- if(local_date<=2)
- {
- local_date++;
- if(local_date==3) local_date=0;
- }
- }
- }
- Delay_ms(100); //延時判斷100MS檢測一次
- }
- }
復制代碼
|