Commit 0ed4a54d authored by Martin Ling's avatar Martin Ling Committed by Martin Ling
Browse files

Randomly generate MAC address if not set.

parent fdd88b2c
......@@ -7,6 +7,7 @@
#include "ble_api.h"
#include "hci_vs.h"
#include "att_api.h"
#include "trng.h"
#include "FreeRTOS.h"
#include "timers.h"
......@@ -92,8 +93,20 @@ static void setAddress(void)
uint8_t bdAddr[6] = { 0x02, 0x02, 0x44, 0x8B, 0x05, 0x00 };
char buf[32];
fs_read_text_file("mac.txt", buf, sizeof(buf));
APP_TRACE_INFO1("mac file contents: %s", buf);
int result = fs_read_text_file("mac.txt", buf, sizeof(buf));
if (result == -1) {
APP_TRACE_INFO0("mac.txt not found, generating random MAC");
TRNG_Read(MXC_TRNG, bdAddr, sizeof(bdAddr));
sprintf(buf, "%02x:%02x:%02x:%02x:%02x:%02x\n",
bdAddr[0], bdAddr[1], bdAddr[2],
bdAddr[3], bdAddr[4], bdAddr[5]);
fs_write_file("mac.txt", buf, strlen(buf));
} else {
APP_TRACE_INFO1("mac file contents: %s", buf);
int a, b, c, d, e, f;
if (sscanf(buf, "%x:%x:%x:%x:%x:%x", &a, &b, &c, &d, &e, &f) == 6) {
bdAddr[0] = f;
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