Sam Grove / Mbed 2 deprecated IAP_testing

example LPC1768 uuid from serial

Dependencies:   IAP mbed

main.cpp@2:60427d02ca93, 2015-03-10 (annotated)

Committer:
sam_grove
Date:
Tue Mar 10 16:32:46 2015 +0000
Revision:
2:60427d02ca93
Parent:
1:28e9d3ed6106 
Update library to maintainers URL

Who changed what in which revision?

UserRevisionLine numberNew contents of line
sam_grove 0:f82a1ca216d4 1 #include "mbed.h"
sam_grove 0:f82a1ca216d4 2 #include "IAP.h"
sam_grove 0:f82a1ca216d4 3
sam_grove 0:f82a1ca216d4 4 DigitalOut led(LED1);
sam_grove 0:f82a1ca216d4 5
sam_grove 0:f82a1ca216d4 6 char *readUUID(void)
sam_grove 0:f82a1ca216d4 7 {
sam_grove 0:f82a1ca216d4 8 static char buf[64] = {0};
sam_grove 0:f82a1ca216d4 9 IAP iap;
sam_grove 0:f82a1ca216d4 10 int32_t *block = iap.read_serial();
sam_grove 0:f82a1ca216d4 11 uint32_t serial_number[5] = {0};
sam_grove 0:f82a1ca216d4 12
sam_grove 0:f82a1ca216d4 13 memset(buf, 0, sizeof(buf));
sam_grove 0:f82a1ca216d4 14 serial_number[0] = *(block);
sam_grove 0:f82a1ca216d4 15 serial_number[1] = *(block+1);
sam_grove 0:f82a1ca216d4 16 // we only want bottom 16 bits of word1 (MAC bits 32-47)
sam_grove 0:f82a1ca216d4 17 // and bit 9 forced to 1, bit 8 forced to 0
sam_grove 0:f82a1ca216d4 18 // Locally administered MAC, reduced conflicts
sam_grove 0:f82a1ca216d4 19 // http://en.wikipedia.org/wiki/MAC_address
sam_grove 1:28e9d3ed6106 20 serial_number[0] |= 0x00000002;
sam_grove 1:28e9d3ed6106 21 serial_number[0] &= 0x0000FFFE;
sam_grove 0:f82a1ca216d4 22
sam_grove 0:f82a1ca216d4 23 snprintf(buf, 16, "%4X%08X", serial_number[0], serial_number[1]);
sam_grove 0:f82a1ca216d4 24
sam_grove 0:f82a1ca216d4 25 return buf;
sam_grove 0:f82a1ca216d4 26 }
sam_grove 0:f82a1ca216d4 27
sam_grove 0:f82a1ca216d4 28 int main(void)
sam_grove 0:f82a1ca216d4 29 {
sam_grove 0:f82a1ca216d4 30 printf("%s\n", readUUID());
sam_grove 0:f82a1ca216d4 31
sam_grove 0:f82a1ca216d4 32 while(1) {
sam_grove 0:f82a1ca216d4 33 led = !led;
sam_grove 0:f82a1ca216d4 34 wait(0.5f);
sam_grove 0:f82a1ca216d4 35 }
sam_grove 0:f82a1ca216d4 36 }