nxp pn532 NFC SPI initiator code, with all functions minimized and made as fast as possible (code for target is also there, you just need to change the functions in the main). Code advises are welcome, i am an electronist not a programmer

Dependencies:   mbed

Revision:
0:f07ca719c12e
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Nov 15 12:58:57 2013 +0000
@@ -0,0 +1,50 @@
+#include "mbed.h"
+#include "PN532.h"
+#include <string>
+
+
+DigitalOut led1(LED1);
+DigitalOut led2 (LED2);
+
+
+PN532 nfc(mosi1, miso1, sclk1, ss1);
+
+int main()
+{
+    printf("\r INITIATOR STARTED\n");
+    nfc.begin();
+
+
+    uint32_t versiondata = nfc.getFirmwareVersion();
+    if (! versiondata) {
+        printf("Didn't find PN532\r\n");
+
+        while (1) {
+            led1 = !led1;
+            wait(0.1);
+        }
+    }
+
+    printf("Found chip PN5%2X\r\n", versiondata >> 24);
+    printf("Firmware V%d.%d\r\n", (versiondata >> 16) & 0xFF, (versiondata >> 8) & 0xFF);
+
+
+    nfc.SAMConfig();
+    wait(1);
+
+    char dataOut[] = "hello target";
+    char dataIn[16];
+   
+    while (1) {
+        if(nfc.configurePeerAsInitiator()==1) {
+            printf("found target");
+            nfc.initiatorTxRx(dataOut, dataIn);
+            printf("\n\r%s", dataIn);
+        } else {
+            printf("no target");
+        }
+        led1=!led1;
+        wait(1);
+    }
+}
+