Diff: main.cpp

Revision:

0:b81d113f3a83

Child:

1:c5b5be0d6c5d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Oct 08 08:58:32 2013 +0000
@@ -0,0 +1,55 @@
+#include "mbed.h"
+#include "PN532.h"
+#include "USBSerial.h"
+
+// PN532(mosi, miso, clk, cs)
+PN532 nfc(P1_22, P1_21, P1_20, P0_2);
+
+DigitalOut myled(LED1);
+
+USBSerial pc;
+
+int main() {
+
+    nfc.begin();
+    uint32_t versiondata = nfc.getFirmwareVersion();
+    if (! versiondata) {
+        pc.printf("Didn't find PN532\r\n");
+        while (1) {
+            myled = !myled;
+            wait(0.1);
+        }
+    } 
+    
+    pc.printf("Found chip PN5%2X\r\n", versiondata >> 24);
+    pc.printf("Firmware V%d.%d\r\n", (versiondata >> 16) & 0xFF, (versiondata >> 8) & 0xFF);
+    
+    nfc.SAMConfig();
+    
+    
+    while(1) {
+        bool success;
+        uint8_t uid[] = { 0, 0, 0, 0, 0, 0, 0 };  // Buffer to store the returned UID
+        uint8_t uidLength;                        // Length of the UID (4 or 7 bytes depending on ISO14443A card type)
+
+        // Wait for an ISO14443A type cards (Mifare, etc.).  When one is found
+        // 'uid' will be populated with the UID, and uidLength will indicate
+        // if the uid is 4 bytes (Mifare Classic) or 7 bytes (Mifare Ultralight)
+        success = nfc.readPassiveTargetID(PN532_MIFARE_ISO14443A, &uid[0], &uidLength);
+        
+        if (success) {
+            myled = 1;
+            pc.printf("Found a card\r\n");
+            pc.printf("UID length: %d\r\nUID Value: ", uidLength);
+            for (uint8_t i=0; i < uidLength; i++) {
+              pc.printf("0x%X ", uid[i]); 
+            }
+            
+            wait(1);
+            myled = 0;
+        } else {
+            pc.printf("Time out\r\n");
+            wait(1);
+        }
+    }
+}