I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Tue, 25 Jun 2019 08:36:35 GMT

I think you are very busy, but What's about J-link ?
As I have uploaded the hard copy at last week,
I couldn't success to install J-link.
When I've ran Jlink.exe , the following error message has appeared.
"Connecting to J-Link via USB...FAILED: Cannot connect to J-Link via USB."

Is it concerned with the problem I cannot get the log ?
the reason why I cannot get the log is not captured by Nordic master or Nordic slave ?
My firmware is ver.2 .

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Tue, 25 Jun 2019 08:35:20 GMT

I appreciate for your quick response !!

>it also seems like you are not using a Nordic device as either master or slave.

May I ask that I can capture only when I use a Nordic device ?
Is it necessary to use Nordic master or Nordic slave ?

I think that I can capture the log without Nordic master and without Nordic slave with this sniffer .
Is it misunderstand ?

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

Sigurd — Tue, 25 Jun 2019 07:52:58 GMT

Hi,

There is nothing wrong with the sniffer log itself. The Slave is sending some MTU request, but the master never responds to that. Later the master sends a package with unknown opcode 0x8E, and I didn't find any mention of that opcode in the Bluetooth spec.

Again, there is nothing wrong with the sniffer log itself now, and it also seems like you are not using a Nordic device as either master or slave. The slave device is from Lapis semiconductor, and the master is from Qualcomm.

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Tue, 25 Jun 2019 02:26:58 GMT

How Is the Investigation Status After That?

1 Week ago, I've uploaded log file.
Is there any troubles or shortages about log file ?
If I take mistakes to save or upload log file, I'll save and upload the log file again.
I'm worried about my log file is too wrong for you to investigation.

As your response was very quickly,
so I felt suddenly your response got stopped.

In addition, As I have changed the QA status to "Answered" due to my mistakes once,
I'm worried about this my question have not been already in your list.

In last week,
I have searched other QAs, websites
and I have tried setting up with 4 PCs,
but now I cannot resolve this problem.
I hope your any responses.

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Wed, 19 Jun 2019 02:06:08 GMT

devzone.nordicsemi.com/.../Page5_5F00_2_2D00_2_5F00_Install_2D00_firmware_2D00_with_2D00_segger_2D00_J_2D00_link.pdf

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Wed, 19 Jun 2019 02:02:08 GMT

By the way, I have one problem that I've not be able to install.
It is according to the document(nRF_Sniffer_UG_v2.2.pdf).
It is about Jlink which is written in Page5.
(2-2 Install firmware with segger Jlink)

When I've ran Jlink.exe , the following error message has appeared.
"Connecting to J-Link via USB...FAILED: Cannot connect to J-Link via USB."
Please refer to the attatchment(I've got the hard copies) about detail.

The firmware of my sniffer(nrf51822) is "ver2".
Is it concerned with the problem
that I cannot get expected (2) ～（6） logs？

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Tue, 18 Jun 2019 03:14:35 GMT

devzone.nordicsemi.com/.../8400.20190607_5F00_ReadRequest.zip

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Tue, 18 Jun 2019 03:13:45 GMT

I've uploaded the WireShark Log just now.
sorry too late.

The uploaded logs have been captured
when I got the BLE data from BLE device with the tablet.

> (1) Master Read Request ← only this log can be seen.
The uploaded logs include "Master Request Read".
(It is line-No 20 in WireShark Log)

If there are any shortages about the uploaded log, please don't hesitate to ask me.
Then I'll capture and upload logs.

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Tue, 18 Jun 2019 03:09:04 GMT

devzone.nordicsemi.com/.../20190607_5F00_ReadRequest.zip

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Mon, 17 Jun 2019 08:22:02 GMT

I'm really appreciate for your very quick response !! Thank you so much.
From now on, I'll prepare logs and upload.
Wait a moment, please.

I'd like to upload as soon as possible,
but it might be long time for me to upload
because I'm not used to Wireshark and this QA system.

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

Sigurd — Mon, 17 Jun 2019 08:04:16 GMT

Could you save the sniffer log file, and then upload the sniffer log here ? See this post on how to upload attachment.

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

kawamoto — Mon, 17 Jun 2019 07:54:57 GMT

Thank you for your quick reply.
I'm so sorry that my English is too difficult for you to understand.
Can I add information about Question No 1 ?

About Question No1, what I'd like to say is "Why Can't I get following (1)～(6）Logs ?".
As the Tablet can get BLE data from BLE device, I think following (1)～(6）Logs should be seen.

>Only (1) Log can be seen, there are no another (No2 ～No6) logs.
>(1) Master Read Request ← only this log can be seen.
>(2) Slave Read Response
>(3) Master Write Request
>(4) Slave Write Response
>(5) Master Indicate Request
>(6) Slave Indicate Response

I doubt that I cannnot get above (2)～(6）Logs because of my setting failtures.
I'd like to get above (2)～(6）Logs.

RE: I'm in trouble because I can't get my expected Logs in WireShark with nRF51822.

Sigurd — Thu, 13 Jun 2019 16:01:32 GMT

Hi,

[quote userid="80594" url="~/f/nordic-q-a/48548/i-m-in-trouble-because-i-can-t-get-my-expected-logs-in-wireshark-with-nrf51822"](1) Why can't I get the Log ?[/quote]

What do you mean? You are showing parts of the log in the <WireShark Log> snippet, so you are getting the log ?

[quote userid="80594" url="~/f/nordic-q-a/48548/i-m-in-trouble-because-i-can-t-get-my-expected-logs-in-wireshark-with-nrf51822"](2) In fact, I have one more trouble related with this log problem.[/quote]

You start to get bad MIC after the link is encrypted (LL_START_ENC_REQ). The sniffer need to be present when the peers are bonded the first time. From the sniffer user guide, "The Sniffer needs to have sniffed the pairing procedure if the devices are already paired. ". Delete the pairing bonds on both the devices, and then start the sniffer before you pair/bond again.