Primary Services Discovery Fails After 8 Connects

RE: Primary Services Discovery Fails After 8 Connects

EvanJohnson — Tue, 10 Sep 2019 19:38:06 GMT

Hey Kenneth,

Sorry for not replying earlier. The basis of this app is the example experimental\ble_app_interactive on the SDK mentioned previously. The issue was with a seg fault in primary_services_discovery_rsp handler. If you want to look into it for fixing the example you can, but my issue is resolved now.

Thanks for pushing me to get the J-link debugger up and working, it helped.

RE: Primary Services Discovery Fails After 8 Connects

Kenneth — Tue, 10 Sep 2019 19:31:28 GMT

Do I understand it correctly that enabling debugging and fault handler still doesn't catch any issue?

Can you provide a description of how I may recreate your setup here? For instance can I use the \ble_app_multilink_central example in the SDK to recreate the same?

Any change if you modify NRF_SDH_BLE_CENTRAL_LINK_COUNT or NRF_SDH_BLE_TOTAL_LINK_COUNT?

Looking at discovery_start() I can find that the error code from sd_ble_gattc_primary_services_discover() isn't really checked or forwarded in any way, the function will actually always return NRF_SUCCESS. Can you print out the actual err_code when calling sd_ble_gattc_primary_services_discover()?

Thanks,
Kenneth

RE: Primary Services Discovery Fails After 8 Connects

EvanJohnson — Tue, 10 Sep 2019 13:58:00 GMT

Kenneth,

Seems there was a seg fault in NRF_CLI_HISTORY. Let's disregard this, and get back to the issue of the softdevice not returning an event, then fatally errors.

RE: Primary Services Discovery Fails After 8 Connects

EvanJohnson — Mon, 09 Sep 2019 14:32:32 GMT

Kenneth,

For some reason after enabling debugging for the J-link, I'm now very consistently getting errors with the nrf_cli. Here's the call chain:

Any ideas why this would be...?

RE: Primary Services Discovery Fails After 8 Connects

Kenneth — Wed, 28 Aug 2019 08:44:49 GMT

[quote user="EvanJohnson"]I may resort to soldering a header onto the dongle to debug the app over SES. Let me know what you suggest.[/quote]

I think that is the best suggestion.

Kenneth

RE: Primary Services Discovery Fails After 8 Connects

EvanJohnson — Tue, 27 Aug 2019 15:26:40 GMT

Hey Kenneth,

I'm using SDK 15.0.3 with sd140. Hardfault handler is enabled, but doesn't seem to catch the fault when the application quits. I could possibly be missing something.

I may resort to soldering a header onto the dongle to debug the app over SES. Let me know what you suggest.

RE: Primary Services Discovery Fails After 8 Connects

Kenneth — Tue, 27 Aug 2019 08:15:13 GMT

Hi,

Which SDK + SD are you using?

Can you enable debugging and fault handler so you may find the exact file name, line number and error code?

Best regards,
Kenneth