main.cpp

00001 #include "mbed.h"
00002 #include "IAP.h"
00003 
00004 DigitalOut led(LED1);
00005 
00006 char *readUUID(void)
00007 {
00008     static char buf[64] = {0};
00009     IAP iap;
00010     int32_t *block = iap.read_serial();
00011     uint32_t serial_number[5] = {0};
00012     
00013     memset(buf, 0, sizeof(buf));
00014     serial_number[0] = *(block);
00015     serial_number[1] = *(block+1);
00016     // we only want bottom 16 bits of word1 (MAC bits 32-47)
00017     // and bit 9 forced to 1, bit 8 forced to 0
00018     // Locally administered MAC, reduced conflicts
00019     // http://en.wikipedia.org/wiki/MAC_address
00020     serial_number[0] |= 0x00000002;
00021     serial_number[0] &= 0x0000FFFE;
00022  
00023     snprintf(buf, 16, "%4X%08X", serial_number[0], serial_number[1]);
00024     
00025     return buf;
00026 }    
00027 
00028 int main(void)
00029 {
00030     printf("%s\n", readUUID());
00031     
00032     while(1) {
00033         led = !led;
00034         wait(0.5f);
00035     }
00036 }