main.cpp

00001 
00002 
00003 #include "mbed.h"
00004 #include "MFRC522.h"
00005 #include <string>
00006 
00007 using namespace std;
00008 // Nucleo Pin for MFRC522 reset (pick another D pin if you need D8)
00009 DigitalOut LedGreen(LED1);
00010 
00011 //Serial connection to PC for output
00012 Serial pc(SERIAL_TX, SERIAL_RX);
00013 
00014 MFRC522    mfrc522   (PA_7, PA_6, PA_5, PD_14, PD_15);
00015 
00016 void getHexa(char checkSum, char *str)
00017 {
00018     char strtemp[3];
00019     memset(strtemp, 0x00, sizeof(strtemp));
00020     sprintf(strtemp, "%02X", checkSum);
00021     memcpy(str, strtemp, 2);
00022     return;
00023 }
00024 
00025 int  main(void)
00026 {
00027     pc.printf("starting...\n");
00028     mfrc522.PCD_Init();
00029     MFRC522::MIFARE_Key key;
00030    
00031     bool New_Card=false,Read_Card=false;
00032      uint8_t rettype;
00033     char buffer[34]="exultsoft";
00034     uint8_t block;
00035     uint8_t status;
00036     uint8_t len;
00037     uint8_t data[34]={0};
00038     
00039     for (uint8_t i = 0; i < 6; i++) key.keyByte[i] = 0xFF;
00040     LedGreen = 1;
00041     // Look for new cards
00042     if (  mfrc522.PICC_IsNewCardPresent()) {
00043         wait_ms(50);
00044         New_Card=true;
00045         //continue;
00046     }
00047     // Select one of the cards
00048     if (  mfrc522.PICC_ReadCardSerial()) {
00049         // pc.printf("Rien");
00050         wait_ms(50);
00051         Read_Card=true;
00052     }
00053     LedGreen = 0;
00054     if(Read_Card==true && New_Card==true) {
00055         char CARD_UID[9]= {'\0'};
00056         char str1[3],str2[3],str3[3],str4[3];
00057         getHexa(mfrc522.uid.uidByte[0], str1);
00058         getHexa(mfrc522.uid.uidByte[1], str2);
00059         getHexa(mfrc522.uid.uidByte[2], str3);
00060         getHexa(mfrc522.uid.uidByte[3], str4);
00061 
00062         CARD_UID[0]=str1[0];
00063         CARD_UID[1]=str1[1];
00064         CARD_UID[2]=str2[0];
00065         CARD_UID[3]=str2[1];
00066         CARD_UID[4]=str3[0];
00067         CARD_UID[5]=str3[1];
00068         CARD_UID[6]=str4[0];
00069         CARD_UID[7]=str4[1];
00070         CARD_UID[8]='\0';
00071         printf("CARD_UID  New :   %s\r\n",CARD_UID);
00072         Read_Card=false;
00073         New_Card=false;
00074     }
00075 
00076 
00077 
00078     printf(" PICC type: ");   // Dump PICC type
00079     rettype = mfrc522.PICC_GetType(mfrc522.uid.sak);
00080     printf("%s\r\n",mfrc522.PICC_GetTypeName(rettype));
00081     
00082    
00083     for (int index=0; index<34;index++)
00084     {
00085         data[index]=(uint8_t)buffer[index];
00086     }
00087     
00088     block = 9;
00089     printf("Authenticating using key A...");
00090     status = mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_A, block, &key, &(mfrc522.uid));
00091     if (status != MFRC522::STATUS_OK) {
00092         printf("PCD_Authenticate() failed:\r\n ");
00093         printf("%s\r\n",mfrc522.GetStatusCodeName(status));
00094         return;
00095     } else printf("PCD_Authenticate() success\r\n ");
00096 
00097 
00098     // Write block
00099     status = mfrc522.MIFARE_Write(block, data, 16);
00100     if (status != MFRC522::STATUS_OK) {
00101         printf("MIFARE_Write() failed: ");
00102         printf("%s",mfrc522.GetStatusCodeName(status));
00103         return;
00104     }
00105     else printf("MIFARE_Write() success\r\n ");
00106     
00107     
00108     
00109   uint8_t buffer1[18];
00110 
00111   block = 9;
00112   len = 18;
00113  
00114   status = mfrc522.PCD_Authenticate(MFRC522::PICC_CMD_MF_AUTH_KEY_A, 4, &key, &(mfrc522.uid)); //line 834 of MFRC522.cpp file
00115   if (status != MFRC522::STATUS_OK) {
00116      printf("Authentication failed: ");
00117     printf("%s\r\n",mfrc522.GetStatusCodeName(status));
00118     return;
00119   }
00120 
00121   status = mfrc522.MIFARE_Read(block, buffer1, &len);
00122   if (status != MFRC522::STATUS_OK) {
00123     printf("Reading failed: ");
00124    printf("%s",mfrc522.GetStatusCodeName(status));
00125     return;
00126   }
00127 
00128   //PRINT FIRST NAME
00129   for (uint8_t i = 0; i < 16; i++)
00130   {
00131     if (buffer1[i] != 32)
00132     {
00133      printf("%c",buffer1[i]);
00134     }
00135   }
00136    printf("\r\n");
00137 
00138 }