Diff: main.cpp

Revision:

0:f82a1ca216d4

Child:

1:28e9d3ed6106

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Sep 29 23:04:18 2014 +0000
@@ -0,0 +1,36 @@
+#include "mbed.h"
+#include "IAP.h"
+
+DigitalOut led(LED1);
+
+char *readUUID(void)
+{
+    static char buf[64] = {0};
+    IAP iap;
+    int32_t *block = iap.read_serial();
+    uint32_t serial_number[5] = {0};
+    
+    memset(buf, 0, sizeof(buf));
+    serial_number[0] = *(block);
+    serial_number[1] = *(block+1);
+    // we only want bottom 16 bits of word1 (MAC bits 32-47)
+    // and bit 9 forced to 1, bit 8 forced to 0
+    // Locally administered MAC, reduced conflicts
+    // http://en.wikipedia.org/wiki/MAC_address
+    serial_number[0] |= 0x00000200;
+    serial_number[0] &= 0x0000FEFF;
+ 
+    snprintf(buf, 16, "%4X%08X", serial_number[0], serial_number[1]);
+    
+    return buf;
+}    
+
+int main(void)
+{
+    printf("%s\n", readUUID());
+    
+    while(1) {
+        led = !led;
+        wait(0.5f);
+    }
+}