MF RC522视频模块的电路原理图如下:
MF RC522单片机源程序如下:
- /**********************RC522实验开发板例程************************
- * CPU:STC89C52RC
- * 晶振:11.0592MHZ
- ******************************************************************/
- //实验目的:
- /*-----------------------------------------------
- 名称:MF RC522
- 内容:通过标准程序静态显示字符
- 引脚定义如下:
- sbit MF522_NSS = P1^7; //SDA
- sbit MF522_SCK = P1^6;
- sbit MF522_SI = P1^5;
- sbit MF522_SO = P1^4;
- sbit MF522_RST = P1^3;
- //蜂鸣器OR指示灯
- sbit LED_GREEN = P2^3;
- ------------------------------------------------*/
- #include "lpcreg.h"
- #include "main.h"
- #include "mfrc522.h"
- #include <STDIO.H>
- #include <string.h>
- unsigned char code data1[16] = {0x12,0x34,0x56,0x78,0xED,0xCB,0xA9,0x87,0x12,0x34,0x56,0x78,0x01,0xFE,0x01,0xFE};
- //M1卡的某一块写为如下格式,则该块为钱包,可接收扣款和充值命令
- //4字节金额(低字节在前)+4字节金额取反+4字节金额+1字节块地址+1字节块地址取反+1字节块地址+1字节块地址取反
- unsigned char code data2[4] = {0,0,0,0x01};
- unsigned char code DefaultKey[6] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
- unsigned char g_ucTempbuf[20];
- void delay1(unsigned int z)
- {
- unsigned int x,y;
- for(x=z;x>0;x--)
- for(y=110;y>0;y--);
- }
- void main( )
- {
- unsigned char status,i;
- unsigned int temp;
- InitializeSystem( );
- PcdReset();
- PcdAntennaOff();
- PcdAntennaOn();
- while ( 1 )
- {
- status = PcdRequest(PICC_REQALL, g_ucTempbuf);//寻卡
- if (status != MI_OK)
- {
- InitializeSystem( );
- PcdReset();
- PcdAntennaOff();
- PcdAntennaOn();
- continue;
- }
-
- printf("卡的类型:");
- for(i=0;i<2;i++)
- {
- temp=g_ucTempbuf[i];
- printf("%X",temp);
-
- }
-
- status = PcdAnticoll(g_ucTempbuf);//防冲撞
- if (status != MI_OK)
- { continue; }
-
- ////////以下为超级终端打印出的内容////////////////////////
-
- printf("卡序列号:"); //超级终端显示,
- for(i=0;i<4;i++)
- {
- temp=g_ucTempbuf[i];
- printf("%X",temp);
-
- }
- ///////////////////////////////////////////////////////////
- status = PcdSelect(g_ucTempbuf);//选定卡片
- if (status != MI_OK)
- { continue; }
-
- status = PcdAuthState(PICC_AUTHENT1A, 1, DefaultKey, g_ucTempbuf);//验证卡片密码
- if (status != MI_OK)
- { continue; }
-
- status = PcdWrite(1, data1);//写块
- if (status != MI_OK)
- { continue; }
- while(1)
- {
- status = PcdRequest(PICC_REQALL, g_ucTempbuf);//寻卡
- if (status != MI_OK)
- {
- InitializeSystem( );
- PcdReset();
- PcdAntennaOff();
- PcdAntennaOn();
- continue;
- }
- status = PcdAnticoll(g_ucTempbuf);//防冲撞
- if (status != MI_OK)
- { continue; }
- status = PcdSelect(g_ucTempbuf);//选定卡片
- if (status != MI_OK)
- { continue; }
-
- status = PcdAuthState(PICC_AUTHENT1A, 1, DefaultKey, g_ucTempbuf);//验证卡片密码
- if (status != MI_OK)
- { continue; }
- status = PcdValue(PICC_DECREMENT,1,data2);//扣款
- if (status != MI_OK)
- { continue; }
-
- status = PcdBakValue(1, 2);//块备份
- if (status != MI_OK)
- { continue; }
-
- status = PcdRead(2, g_ucTempbuf);//读块
- if (status != MI_OK)
- { continue; }
- printf("卡读块:"); //超级终端显示,
- for(i=0;i<16;i++)
- {
- temp=g_ucTempbuf[i];
- printf("%X",temp);
-
- }
- printf("\n");
- LED_GREEN = 0;
- delay1(100);
- LED_GREEN = 1;
- delay1(100);
- LED_GREEN = 0;
- delay1(200);
- LED_GREEN = 1;
- PcdHalt();
- }
- }
- }
- /////////////////////////////////////////////////////////////////////
- //系统初始化
- /////////////////////////////////////////////////////////////////////
- void InitializeSystem()
- {
- P0M1 = 0x0; P0M2 = 0x0;
- P1M1 = 0x0; P1M2 = 0x0;
- P3M1 = 0x0; P3M2 = 0xFF;
- P0 = 0xFF; P1 = 0xFF; P3 = 0xFF;P2 = 0xFF;
- TMOD=0x21; //设T0为方式1,GATE=1;
- ……………………
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