I downloaded the Trial version of Visual Micro and having problems using the Debug hardware option with a Segger J-Link. The J-Link works fine with the Arduino IDE and Visual Studio Code PlatformIO.

I tried following the web site instructions for Debugging Using Custom Hardware but can’t get it working.  I get a few errors, see attached image and compile log.

The  GIGA.Debug.debugger_launch.json file attached in my reply to this message.

Thank you in advance for any help in resolving this issue.
Sheldon

Thanks for the report and detail.

Could you attach the output from the Arduino IDE when debugging so we can compare the setup in use.  If you have a launch.json for either Arduino IDE or PlatformIO please also send this over.

I suspect the Arduino IDE configuration is the default OpenOCD route (not using the Segger software at all), in which case selecting the vMicro > Debugger > Debug: Arduino option should use the same configuration.

Thanks for the update, if you change the launch.json in Visual Micro to use the same exe and command arguments as PlatformIO does this help at all?

Apologies, I meant just replacing the two entries in the file you had previously, like the attached.

OK thats good progress, does adding the additional flags below to the debugServerArgs improve this further?
-endian little -noir -LocalhostOnly -nologtofile

There is more logging in Visual Studio which can be enabled to show exactly why GDB is failing, which is enabled from View > Other Windows > Command Window, and then typing "Debug.MIDebugLog /OutputWindow /On" and pressing enter.

Quote:

It will be visible in the Output Window > Debug, however if it fails too soon this may not appear.

The error you are seeing "Debug server process failed to initialize" means Visual Studio doesn't think the JLink software has started correctly, so it isn't then firing off GDB to connect to it.

Ill get a similar setup running here to work out what is missing and get back to you tomorrow realistically.

I get the following error

Thanks for confirming, just for the avoidance of doubt and to help anyone else trying to achieve the same task, can you attach the final launch.json that works?