main.cpp

00001 #include "mbed.h"
00002 #include "Adafruit_PN532.h "
00003 
00004 #define SS   PTD0
00005 // PTD1 is also LED_BLUE, it will blink during SPI communication.
00006 #define SCK  PTD1
00007 #define MOSI PTD2
00008 #define MISO PTD3
00009 
00010 Serial id(PTA2, PTA1);
00011 int previous = 0;
00012 
00013 Adafruit_PN532 nfc(SCK, MISO, MOSI, SS);
00014 
00015 void loop(void);
00016 
00017 int main() {
00018   id.baud(9600);
00019   nfc.begin();
00020 
00021   uint32_t versiondata = nfc.getFirmwareVersion();
00022   if (! versiondata) {
00023     while (1); // halt
00024   }
00025 
00026   nfc.SAMConfig();
00027   
00028   while(1) { loop(); }
00029 }
00030 
00031 
00032 void loop(void) {
00033   uint8_t success;
00034   uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };  
00035   uint8_t uidLength;                        
00036   
00037   success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, uid, &uidLength);
00038   
00039   if (success) {
00040     previous = 1;
00041 
00042     if (uidLength == 4)
00043     {
00044         uint8_t tag_1 = 250;
00045         uint8_t tag_2 = 186;
00046         uint8_t tag_3 = 106;
00047         uint8_t tag_4 = 10;
00048         id.printf("%d", uid[0]);
00049     }
00050   } else if (previous == 0){
00051      } else {
00052      previous = 0; 
00053     }
00054 }