Hi, all.
I used sd_ble_gap_addr_get() function to get a MAC address in the different example and the result was different.
I tested this example in SDK v14.2 and v15.0 but I just got the same symptoms in both SDK.
1. /examples/ble_peripheral/ble_app_beacon
You can modify main() function. Red colored is additional code to test.
int main(void)
{
static ble_gap_addr_t mac_addr;
uint32_t err_code;
// Initialize.
log_init();
timers_init();
leds_init();
power_management_init();
ble_stack_init();
advertising_init();
// Start execution.
NRF_LOG_INFO("Beacon example started.");
advertising_start();
err_code = sd_ble_gap_addr_get(&mac_addr);
NRF_LOG_INFO("MAC_ADDR: %x:%x:%x:%x:%x:%x\r\n", mac_addr.addr[5], mac_addr.addr[4], mac_addr.addr[3], mac_addr.addr[2], mac_addr.addr[1], mac_addr.addr[0]);
// Enter main loop.
for (;; )
{
idle_state_handle();
}
}
With my PCA10040 board, it shows C4:EA:D2:82:33:xx in UART log window. (I hid last bytes)
2. /examples/iot/coap/ipv6/client
You can modify main() function. Red colored is additional code to test.
int main(void)
{
uint32_t err_code;
static ble_gap_addr_t mac_addr;
....
....
....
// Start execution
connectable_mode_enter();
err_code = sd_ble_gap_addr_get(&mac_addr);
APPL_LOG("MAC_ADDR: %x:%x:%x:%x:%x:%x\r\n", mac_addr.addr[5], mac_addr.addr[4], mac_addr.addr[3], mac_addr.addr[2], mac_addr.addr[1], mac_addr.addr[0]);
// Enter main loop
for (;;)
{
app_sched_execute();
if (NRF_LOG_PROCESS() == false)
{
// Sleep waiting for an application event.
err_code = sd_app_evt_wait();
APP_ERROR_CHECK(err_code);
}
}
}
With my PCA10040 board, it shows 0:EA:D2:82:33:xx in UART log window. (I hid last bytes)
As you know, the first byte value is different.
Which is a right MAC address ? I am very confused.
If you know any other good function to get a MAC address, let me know it.
Thanks.
