stm32F407主控芯片

RFID模块

矩阵按键模块

AS608指纹模块

SG90舵机模块

OLED显示屏模块

一、系统设计框架图

二、模块设计

RFID

寻卡

//功能描述寻卡读取卡类型号
//输入参数reqMode--寻卡方式
//                    TagType--返回卡片类型
//                    0x4400 = Mifare_UltraLight
//                    0x0400 = Mifare_One(S50)
//                    0x0200 = Mifare_One(S70)
//                    0x0800 = Mifare_Pro(X)
//                    0x4403 = Mifare_DESFire
//返 回 值成功返回MI_OK
u8 MFRC522_Request(u8 reqMode, u8 *TagType)
{  u8  status;    u16 backBits;   //接收到的数据位数//   Write_MFRC522(BitFramingReg, 0x07);  //TxLastBists = BitFramingReg[2..0]   TagType[0] = reqMode;  status = MFRC522_ToCard(PCD_TRANSCEIVE, TagType, 1, TagType, &backBits); // if ((status != MI_OK) || (backBits != 0x10))  {       status = MI_ERR;}//  return status;
}

读取卡序列号

//功能描述防冲突检测读取选中卡片的卡序列号
//输入参数serNum--返回4字节卡序列号,第5字节为校验字节
//返 回 值成功返回MI_OK
u8 MFRC522_Anticoll(u8 *serNum)
{     u8  status;     u8  i;     u8  serNumCheck=0;     u16 unLen;//           ClearBitMask(Status2Reg, 0x08);              //TempSensclear     ClearBitMask(CollReg,0x80);                   //ValuesAfterColl  Write_MFRC522(BitFramingReg, 0x00);      //TxLastBists = BitFramingReg[2..0]serNum[0] = PICC_ANTICOLL1;     serNum[1] = 0x20;     status = MFRC522_ToCard(PCD_TRANSCEIVE, serNum, 2, serNum, &unLen);//      if (status == MI_OK){   //校验卡序列号   for(i=0;i<4;i++)   serNumCheck^=serNum[i];//if(serNumCheck!=serNum[i])        status=MI_ERR;}SetBitMask(CollReg,0x80);  //ValuesAfterColl=1//      return status;
}

匹配卡号

u8 check_ID(u8 *a, u8 *b)
{int i;for(i=0;i<4;i++){if( a[i] == b[i])continue;else return 1;    }return 0;
}

保存卡

//保存卡号
void save_id(u8 *card_numberbuf)
{char Wbuf[32];int i;printf("count:%d\n",count);w25q128_sector_erase(0x001000+0x001000*count);//擦除第count+1个扇区delay_ms(500);w25q128_read_data(0x001000+0x001000*count,Wbuf,20);//读取for(i=0;i<10;i++)printf("[%#x]  ",Wbuf[i]);printf("\r\n");//sprintf(Wbuf,"%x%x%x%x\0",);w25q128_write_data(0x001000+0x001000*count,(char *)card_numberbuf,4);w25q128_read_data(0x001000+0x001000*count,Wbuf,20);for(i=0;i<10;i++)printf("[%#x]  ",Wbuf[i]);printf("\r\n");memset(Wbuf,0,sizeof(Wbuf));count++;
}

删除卡

//删除卡号
void del_id(u8 *card_numberbuf)
{int i,j;u8 flag;char NextID[32];for(i=0;i<count;i++){w25q128_read_data(0x001000+0x001000*i,NextID,4);printf("card_id[%d]",i);printf("now_card_id:");      flag = check_ID((u8 *)NextID,card_numberbuf);printf("比较第%d张卡\n",i+1);if(flag == 0)  //遍历成功找到{printf("卡号存在！");printf("为第%d张卡\n",i+1);break;}}for(j = i;j<count;j++){w25q128_sector_erase(0x001000+0x001000*j);w25q128_read_data(0x001000+0x001000*(j+1),NextID,4);w25q128_write_data(0x001000+0x001000*j,NextID,4);memset(NextID,0,sizeof(NextID));}count--;}

矩阵按键

按行按列读取，获取按键值

char get_keyboard()
{int x,y;//设置PA0~PA3为输出，PB0~PB3为输入GPIO_SET_MODE(GPIO_Mode_OUT,1);//读取电平x = get_num(GPIO_Mode_OUT);//设置PB0~PB3为输出模式，清零GPIO_SET_MODE(GPIO_Mode_OUT,0);//设置PB0~PB3为输出模式，PA0~PA3为输入模式GPIO_SET_MODE(GPIO_Mode_IN,1);//读取电平y = get_num(GPIO_Mode_IN);//清零GPIO_SET_MODE(GPIO_Mode_IN,0);//printf("x=%d\n",x);//printf("x=%d\n",x);return arr[x][y];
}

指纹

检测是否有手指按下图像

//录入图像 PS_GetImage
//功能:探测手指，探测到后录入指纹图像存于ImageBuffer。
//模块返回确认字
u8 PS_GetImage(void)
{u16 temp;u8  ensure;u8  *data;SendHead();SendAddr();SendFlag(0x01);//命令包标识SendLength(0x03);Sendcmd(0x01);temp =  0x01+0x03+0x01;SendCheck(temp);data=JudgeStr(2000);if(data)ensure=data[9];elseensure=0xff;return ensure;
}

刷指纹

void press_FR(void)
{SearchResult seach;u8 ensure;ensure=PS_GetImage();delay_ms(3000);if(ensure==0x00)//获取图像成功 {    printf("获取图像成功！");PFout(10) = 0;ensure=PS_GenChar(CharBuffer1);if(ensure==0x00) //生成特征成功{printf("生成特征成功！");    PFout(10) = 1;ensure=PS_HighSpeedSearch(CharBuffer1,0,AS608Para.PS_max,&seach);if(ensure==0x00)//搜索成功{printf("搜索成功！");printf("刷指纹成功,此人ID：%d  匹配得分:%d\r\n",seach.pageID,seach.mathscore);opendoor();}else {printf("指纹不存在，匹配失败！");       ShowErrMessage(ensure);}}else{printf("指纹识别失败\r\n");ShowErrMessage(ensure);}//PFout(10) = 1;delay_ms(2000);}AS608_flag = 0;
}

录入指纹

void Add_FR(void)
{u8 i,ensure ,processnum=0;u16 ID;while(AS608_flag == 1){switch (processnum){case 0:i++;printf("请按下指纹...\r\n");OLED_Clear();OLED_ShowCHinese(0,2,48);//请OLED_ShowCHinese(18,2,49);//按OLED_ShowCHinese(36,2,50);//下OLED_ShowCHinese(54,2,40);//指OLED_ShowCHinese(72,2,41);//纹delay_xms(2000);ensure=PS_GetImage();if(ensure==0x00) {PFout(9) = 0;ensure=PS_GenChar(CharBuffer1);//生成特征PFout(9) = 1;if(ensure==0x00){printf("指纹正常\r\n");i=0;processnum=1;//跳到第二步                        }else ShowErrMessage(ensure);                }else ShowErrMessage(ensure);                        break;case 1:i++;printf("请再按一次指纹...\r\n");OLED_Clear();OLED_ShowCHinese(0,2,48);//请OLED_ShowCHinese(18,2,51);//再OLED_ShowCHinese(36,2,49);//按OLED_ShowCHinese(54,2,50);//下OLED_ShowCHinese(72,2,40);//指OLED_ShowCHinese(90,2,41);//纹ensure=PS_GetImage();if(ensure==0x00) {PFout(9) = 0;ensure=PS_GenChar(CharBuffer2);//生成特征PFout(9) = 1;if(ensure==0x00){printf("指纹正常\r\n");i=0;processnum=2;//跳到第三步}else ShowErrMessage(ensure);    }else ShowErrMessage(ensure);        break;case 2:printf("对比两次指纹...\r\n");ensure=PS_Match();if(ensure==0x00) {printf("对比成功,两次指纹一样\r\n");processnum=3;//跳到第四步}else {printf("对比失败，请重新录入指纹\r\n");ShowErrMessage(ensure);i=0;processnum=0;//跳回第一步        }delay_ms(1200);break;case 3:printf("生成指纹模板...\r\n");ensure=PS_RegModel();if(ensure==0x00) {printf("生成指纹模板成功\r\n");processnum=4;//跳到第五步}else {processnum=0;ShowErrMessage(ensure);}delay_ms(1200);break;case 4:ID = ID_input();//输入存储用的ID号ensure=PS_StoreChar(CharBuffer2,ID);//储存模板if(ensure==0x00) {    printf("录入指纹成功\r\n");//录入失败OLED_ShowCHinese(0,2,40);//指OLED_ShowCHinese(18,2,41);//纹OLED_ShowCHinese(36,2,53);//录OLED_ShowCHinese(54,2,54);//入OLED_ShowCHinese(72,2,26);//成OLED_ShowCHinese(90,2,27);//功AS608_flag = 0;PS_ValidTempleteNum(&ValidN);//读库指纹个数printf("剩余指纹容量为%d\r\n",AS608Para.PS_max-ValidN);return ;}else {processnum=0;ShowErrMessage(ensure);}                    break;                }delay_xms(2000);if(i==5)//超过5次没有按手指则退出{printf("--------超过5次没有按手指则退出--------\r\n");//录入失败OLED_ShowCHinese(0,2,40);//指OLED_ShowCHinese(18,2,41);//纹OLED_ShowCHinese(36,2,53);//录OLED_ShowCHinese(54,2,54);//入OLED_ShowCHinese(72,2,28);//失OLED_ShowCHinese(90,2,29);//败AS608_flag = 0;break;    }}}

删除指纹

void Del_FR(void)
{u8  ensure;u16 num;printf("删除指纹，请输入指纹ID\r\n");OLED_Clear();OLED_ShowCHinese(0,2,55);//输OLED_ShowCHinese(18,2,56);//入OLED_ShowCHinese(36,2,40);//指OLED_ShowCHinese(54,2,41);//纹OLED_ShowCHinese(72,2,57);//编OLED_ShowCHinese(90,2,58);//号delay_ms(50);num = ID_input();//输入删除用的ID号if(num==0xFFFF)goto MENU ; //返回主页面else if(num==0xFF00)ensure=PS_Empty();//清空指纹库else ensure=PS_DeletChar(num,1);//删除单个指纹if(ensure==0){printf("删除指纹成功\r\n");OLED_Clear();OLED_ShowCHinese(0,2,40);//指OLED_ShowCHinese(18,2,41);//纹OLED_ShowCHinese(36,2,32);//删OLED_ShowCHinese(54,2,33);//除OLED_ShowCHinese(72,2,26);//成OLED_ShowCHinese(90,2,27);//功 }elseShowErrMessage(ensure);    delay_ms(750);PS_ValidTempleteNum(&ValidN);//读库指纹个数printf("剩余指纹个数：%d\r\n",AS608Para.PS_max-ValidN);AS608_flag = 0;MENU:    printf("返回主程序\r\n");
}