custom target board serial data plotting

RE: custom target board serial data plotting

awneil — Wed, 18 Nov 2020 22:40:24 GMT

That's all Segger's stuff - so Segger really are the people to ask about it!

RE: custom target board serial data plotting

Pepam — Wed, 18 Nov 2020 16:46:49 GMT

Yes, I mean J-scope on the link you have mentioned. I know that it is not Nordic´s, but Nordic DKs use J-link in order to be able to debug (looking at many questions on Devzone common used IDE for Nordic product development is also Segger embedded studio), so i am assuming that i should get some help here. Please, how to setup the parameters? Thanks!

RE: custom target board serial data plotting

awneil — Wed, 18 Nov 2020 10:36:05 GMT

[quote userid="82470" url="~/f/nordic-q-a/68402/custom-target-board-serial-data-plotting/280466#280466"] J-Scope[/quote]

This: https://www.segger.com/products/debug-probes/j-link/tools/j-scope/ ?

[quote userid="82470" url="~/f/nordic-q-a/68402/custom-target-board-serial-data-plotting/280466#280466"] Is this a good solution?[/quote]

Depends what the problem is!

[quote userid="82470" url="~/f/nordic-q-a/68402/custom-target-board-serial-data-plotting/280466#280466"] I have read that it is necessary to include path to .elf program[/quote]

Yes, that's what the above page says - it's a debug tool, which directly accesses your variables by name.

It will need the ELF file in order to translate the variable name to actual RAM address.

But it's a Segger product - nothing to do with Nordic - so you need to contact Segger for more information or support:

https://forum.segger.com/

https://www.segger.com/support/technical-support/

RE: custom target board serial data plotting

Pepam — Tue, 17 Nov 2020 19:03:57 GMT

In Segger tools I have found J-Scope. Is this a good solution? I have read that it is necessary to include path to .elf program sketch. Is it sufficient to include .elf file which Segger embedded studio generates within project folder ? Thanks!

RE: custom target board serial data plotting

awneil — Tue, 17 Nov 2020 13:32:04 GMT

[quote userid="14926" url="~/f/nordic-q-a/68402/custom-target-board-serial-data-plotting/280347#280347"]data plotting tools in Python[/quote]

Indeed. I think probably Python is the go-to language for such things - with matplotlib, numpy, etc?

https://www.google.com/search?q=python+data+plotting

https://learn.sparkfun.com/tutorials/graph-sensor-data-with-python-and-matplotlib

RE: custom target board serial data plotting

Jørgen Holmefjord — Tue, 17 Nov 2020 12:29:34 GMT

Hi,

One alternative could be to use pynrfjprog together with some data plotting tools in Python.

You can find examples of reading/writing data over RTT from a Python application in this post.

Best regards,
Jørgen

RE: custom target board serial data plotting

awneil — Mon, 16 Nov 2020 16:56:54 GMT

yes, that would be entirely possible.

I think Keil & Segger both have such facilities.

To be more general, it might be easier to use the UART ...