PC-BLE-Driver - Some advertisement lengths faulty/forbidden? [sdk5 v14.0.0]

[Muniek]

Hi,
I have strange problem using pc-ble-driver on nrf52 with heart_rate_monitor example.
When I set advertisement data to be 16 bytes long, two of our testing phones cannont see proper advertisement data (iPhone 6 iOS 10.2.1 and Sony Xperia Z5 Android 7.1.1)
It should me seen as connectable with 11 bytes of manufacturer data, but it's seen as unconnectable and without manufacturer data at all.
When I change manufacturer data to be one byte shorter, then everything is ok, one or two bytes more and it doesn't work, 6 bytes more and it start working again.

This is (not working) my setup:

    data_buffer[index++] = 0x02;
    data_buffer[index++] = BLE_GAP_AD_TYPE_FLAGS; // 0x01
    data_buffer[index++] = BLE_GAP_ADV_FLAG_LE_LIMITED_DISC_MODE | BLE_GAP_ADV_FLAG_BR_EDR_NOT_SUPPORTED;

    data_buffer[index++] = 0x0C;
    data_buffer[index++] = 0xFF;
    data_buffer[index++] = 0x88;
    data_buffer[index++] = 0x44;
    data_buffer[index++] = 0x55;
    data_buffer[index++] = 0x34;
    data_buffer[index++] = 0x03;
    data_buffer[index++] = 0x11;
    data_buffer[index++] = 0x22;
    data_buffer[index++] = 0x33;
    data_buffer[index++] = 0x44;
    data_buffer[index++] = 0x55;
    data_buffer[index++] = 0x66;

    uint8_t sr_data[9];
    sr_data[0] = 0x08;
    sr_data[1] = 0x09;
    sr_data[2] = 0x43;
    sr_data[3] = 0x6F;
    sr_data[4] = 0x6E;
    sr_data[5] = 0x6E;
    sr_data[6] = 0x65;
    sr_data[7] = 0x63;
    sr_data[8] = 0x74;
    error_code = sd_ble_gap_adv_data_set(m_adapter, data_buffer, index, sr_data, 0x09);

Thanks for any help :)

[tesc]

Hi,

From your code excerpt it is impossible to tell how large data_buffer is. Are you sure it is large enough?

You write that you experience problems when testing with two different smartphones. Are those the only devices that you have used for testing? Do you have a second DK or Dongle that you can use with nRF Connect and see what packets you receive there? Or a sniffer log?

What SoftDevice and version are you using?

What version of pc-ble-driver are you using?

Regards,
Terje

[Muniek]

- Are you sure it is large enough?
Yes i'm sure its large enough, because I'm able to make manufacturer data lager and its works.

- Are those the only devices that you have used for testing?
No, we tested it on many phones, about 20.

- What SoftDevice and version are you using?
sdk 14, softdevice 5

- What version of pc-ble-driver are you using?
Sorry I dont know how to check this, I downloaded it from (Monday, 29 October 2018):
https://github.com/NordicSemiconductor/pc-ble-driver

Sniffer:

[ 02 1d 00 ff ff 01 c7 04 68 12 0e f3 cf 80 02 01 05 0c ff 88 44 55 01 03 11 22 33 44 55 66 ] - doesn't work

[ 02 1d 00 ff ff 01 c7 04 68 12 0e f3 cf a0 02 01 05 10 ff 88 44 55 01 03 11 22 33 44 55 66 66 66 66 66 ] - OK

[ 02 1d 00 ff ff 01 c7 04 68 12 0e f3 cf 78 02 01 05 0b ff 88 44 55 01 03 11 22 33 44 55 ] - OK

As you can see one buye less is OK, and even 4 bytes more is also OK.

this is my devices mac address: F3:0E:12:68:04:C7

[Muniek]

Logs:

2019-01-10T14_34_59.487Z-log copy.txt

2019-01-10T14_19_09.503Z-log.txt