crashtest-r0ket/firmware/basic/uuid.c

52 lines
1.0 KiB
C

#include "lpc134x.h"
#include "sysdefs.h"
#include "basic.h"
#include "xxtea.h"
#include "core/iap/iap.h"
uint32_t uuid32=0;
uint16_t uuid16=0;
static uint32_t __GetUUID32(void){
IAP_return_t iap_return;
iap_return = iapReadSerialNumber();
if (iap_return.ReturnCode == 0){
uint32_t block[4];
uint32_t k[4] = {0,0,0,0};
int i;
for(i=0; i<4; i++)
block[i] = iap_return.Result[i];
xxtea_encode_words(block, 4, k);
return block[0];
}
return 0;
};
// What OpenBeacon used. Do we want this?
static uint16_t __GetUUID16(void){
IAP_return_t iap_return;
iap_return = iapReadSerialNumber();
return crc16 ((uint8_t *) iap_return.Result, sizeof (iap_return.Result));
};
uint32_t initUUID(void){
uuid32=__GetUUID32();
uuid16=__GetUUID16();
};
uint32_t GetUUID32(void){
if(uuid32==0){
initUUID();
};
return uuid32;
};
uint16_t GetUUID16(void){
if(uuid32==0){
initUUID();
};
return uuid16;
};