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  VS Arduino › Visual Micro › Hardware Debugging (GDB, GDB WiFi, GDB Stub) › (MKRWifi1010) Re: Unable to start debugging. Unable to establish a connection to GDB
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Hot Topic (More than 8 Replies) (MKRWifi1010) Re: Unable to start debugging. Unable to establish a connection to GDB (Read 3097 times)
PavlosA
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(MKRWifi1010) Re: Unable to start debugging. Unable to establish a connection to GDB
Jan 18th, 2023 at 11:11pm
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Hi,

Same problem, different processor.

I'm using a SAMD21G18A with an Atmel-ICE.

I can upload using the ICE, but can't debug.

I receive the "Unable to establish a connection to gdb" message.

I'd also like to note that Microchip Studio works fine for both uploading / debugging using the exact same hardware.

Thanks in advance.

Screen Shot:

https://1drv.ms/u/s!AkoVqK8Kx0wfjOMI6Rg5vSbEs_d-YQe=LBJL7H

Attached is the OpenOCD log file.

Paul

« Last Edit: Jan 19th, 2023 at 9:47am by Simon@Visual Micro »  
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PavlosA
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(MKRWifi1010) Re: Unable to start debugging. Unable to establish a connection to GDB
Reply #1 - Jan 18th, 2023 at 11:30pm
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Sorry, I'm having trouble with attachments.

Here's the Build Output file.
« Last Edit: Jan 19th, 2023 at 9:45am by Simon@Visual Micro »  
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Simon@Visual Micro
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #2 - Jan 19th, 2023 at 9:56am
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Thanks for the report and the information.

Can you enable the verbose and show build properties options as shown at the top of the page, and attach the full build output after building again?
  
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PavlosA
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #3 - Jan 19th, 2023 at 6:00pm
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Attached.

Weird, all those options were already on.

thanks!
  
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #4 - Jan 20th, 2023 at 12:03pm
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Thanks for the logs, could you also attach the log from the below location (after trying Debug > Attach to Process)?
Code
Select All
ketch2.ino_DebugOpenOCD.log


I can see some differences between the upload and debug commands which may require changing, but the above log will show where OpenOCD is falling over hopefully.
  
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #5 - Jan 20th, 2023 at 4:39pm
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Here it is, Thanks!
  
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #6 - Jan 26th, 2023 at 2:47am
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Hi - I was just wondering if anyone had any comment on this, it appears to be some kind of configuration issue.

Thanks
  
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #7 - Jan 26th, 2023 at 1:34pm
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Sorry for the delay. We are reduced staff this week. Simon will continue this thread next week.
  
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #8 - Jan 30th, 2023 at 5:45pm
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If you add a local board.txt to your project (vMicro > Add Code > Add Local board.txt), and paste in the below line this should work as expected:
tools.atmelICE.vmserver.scriptPath=-s "{path}/scripts/"
  
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #9 - Jan 30th, 2023 at 7:15pm
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Thank you Simon, but this doesn't seem to work, acting precisely the same way as before:  upload works, but attach to process warns: "Unable to establish a connection to gdb"

I've attached the board.txt file that I got working by adding two lines.  I doubt it's the "correct" fix but it is working for me at the moment.

Thanks!
« Last Edit: Jan 30th, 2023 at 7:38pm by PavlosA »  
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #10 - Jan 31st, 2023 at 9:17am
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Thanks for the update and the detail on the solution.

Does it work with just the first line of your board.txt? 
(I only ask as the config file from the board package issues the other commands so it should just be a case of it finding the scripts folder to then locate the interface/target scripts)
  
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #11 - Feb 3rd, 2023 at 6:04pm
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Hi Simon,

I can verify that this does NOT work if I remove the second line.

It has the same issue with gdb "unable to establish a connection".

thanks
Paul
  
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Re: (MKRWifi1010) Unable to start debugging. Unable to establish a connection to GDB
Reply #12 - Feb 3rd, 2023 at 7:44pm
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Thanks for confirming, we will review the lines provided and amend as needed.

We will update this thread when the fix is available.
  
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