BLE link quality statistics on NRF52840 with Nordic SD S140 BLE stack

Hello Nordic support team,

We are now creating a BLE central device which is part of a medical equipment.

The BLE communication works fine, but we want to add a BLE link quality statistics feature(like frame transmit counter, frame retransmission counter, frame deliver timeout and etc.) to the firmware to for performance evaluation at BLE Link Layer level.

I have gone through the APIs for SoftDevice S140 Soft Device seems there is no direct statistics information I can get through API call. Do you have any suggestion or reference for us to achieve such feature? Thanks!

We are using nRF52840 with NRF5 SDK 16.0 + SoftDevice S140. Please let me know if there is any further information required.

Best Regards,

Jimmy Wang

0 user20690 over 4 years ago

Hi.

Seems like that should be achievable. I'll check what kind of data is available through the API or if there is another way of going at this.

What would you like to do with the data? Just print logs with the statistics, broadcast the data or something else?

Br,
Joakim
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0 user114292 over 4 years ago in reply to user20690

Hello Joakim,

Thanks so much for your reply. We'd like to export such information through USB to the connected host PC.

So if we can access the statistics info in C code, the left steps can be handled on our own, thanks!

Best Regards,

Jimmy
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0 user114292 over 4 years ago in reply to user20690

Hello Joakim,

Did you find anything useful on this topic that we can discuss?

Best Regards,

Jimmy
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0 user114292 over 4 years ago in reply to user20690

Hello Joakim,

Do you have any update on this question? Thanks so much for your kindly support!

Best Regards,

Jimmy
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0 user20690 over 4 years ago in reply to user114292

Hi!

Apologize for the long delay in response here.

We don't have any statistics like this directly available from any API on the link layer unfortunately. Nothing other than RSSI as far as I know.

I made a request to our development team if there are any way to access any data like this, but I haven't heard back. I'll request this again and get back to you asap!

Br,
Joakim
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