Device ID as advertising name

RE: Device ID as advertising name

haakonsh — Mon, 13 Jul 2020 14:33:51 GMT

I suggest you enter into a debug session and read the value of LddGapParams.pDeviceName after you called snprintf(LddGapParams.pDeviceName, "%c%c%c%c%x%x', str_1[0], str_1[1], str_1[2], str_1[3]);.

RE: Device ID as advertising name

Gunjan — Mon, 13 Jul 2020 13:37:20 GMT

we have tried using snprintf but it didn't work. Instead the device didn't show any name while advertising.

unsigned char str_1[10];
str_1[0] = (NRF_FICR->DEVICEADDR[0] & 0xF);
str_1[1] = ((NRF_FICR->DEVICEADDR[0] >> 4) & 0xF);
str_1[2] = ((NRF_FICR->DEVICEADDR[0] >> 8) & 0xF);
str_1[3] = ((NRF_FICR->DEVICEADDR[0] >> 12) & 0xF);

snprintf(LddGapParams.pDeviceName, "%c%c%c%c%x%x', str_1[0], str_1[1], str_1[2], str_1[3]);

err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *)LpGapStruc->pDeviceName, size);

APP_ERROR_CHECK(err_code);

RE: Device ID as advertising name

Karl Ylvisaker — Fri, 10 Jul 2020 11:51:57 GMT

Hello,

[quote user=""]I need the last 4 digits of DEVICEADDR[0] as the advertising name for uniqueness. But I am not able to get it working. Please kindly help with this.[/quote]

What have you done to implement this, and what unexpected behavior are you seeing?
If you could share some code, that would be very helpful to have a look at.

To achieve this you will have to append the digits to the end of your device name c-string, before supplying it as part of the advertising data.
You may append the digits to your device name by for example using snprintf or any other c-string concatication function.

Best regards,
Karl