J-Link not working. Please help

[thanhduong]

Hi,

I am trying to program a MKL25Z128xxx4 using a J-Link but I ran into a problem. The error states:

     Plug-in ilg.gnuarmeclipse.debug.gdbjtag.jlink was unable to load class      ilg.gnuarmeclipse.debug.gdbjtag.jlink.dsf.LaunchConfigurationDelegate.

     ilg/gnuarmeclipse/debug/gdbjtag/dsf/AbstractGnuArmLaunchConfigurationDelegate

I'm not sure what this issue is. For the project in KDS, I have set the project to create a flash image in Project Properties-> C/C++ Build ->Settings -> Toolchains.

Could someone provide some insight on this issue? Please let me know if I need more information as I don't know what the cause of this problem is.

Thank you in advance.

[Alice_Yang]

Hello Thanh,

- Please be sure the hardware is  connected well , be sure the PC have detect the J-link .

-In the Debug Configurations , please select the J-link debugging :

- Please first create one simple project to have a try  .

If still can not work ,please take a screenshot about the steps you do , especially the debug configurations ,

the "Main" and "Debugger":

Hope it helps

Have a great day,
Alice

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[mahendranmanoha]

Hi Alice, 

I also ran in to same problem as Thanh. I am using KDS 3.0.0 with KSDK 1.3. My target board is Kwikstik K40 V5.0. I created KSDK 1.3 project using the Wizard with MQX Lite OS and Processor Exerpt. 

I have attached the screen shot of Debug Window as you requested Thanh. I just want to know what needs to be done to Debug the project with Kwikstik K40.

best regards,

Mahendran

[BlackNight]

Does it work for other project and is it just this project which fails? Can you try with other projects (created by the wizard)?

Otherwise I think you have updated your GNU ARM Eclipse plugins and corrupted them somewhow. I recommend that you get KDS V3.2.0 installed (you can install it side-by-side, so no need to uninstall your current 3.0.0).

I hope this helps,

Erich

[mahendranmanoha]

Hi Erich,

Thanks for your suggestion. Error related to the toolchain is resolved with updated KDS 3.2.0.

Now, I have couple of new issues.

1. I stopped the debug session with red square in Debug mode and try connecting again for one of the projects. I got an error saying "Could not connect to the running target".

2. I exited eclipse, disconnected the Kwikstik K40 board from Laptop and then retried debugging Kwikstik K40 (with USB connection to Laptop) from Eclipse Luna SR2 (4.4.2). I got an error saying that "could not connect to target. please check if target is powered and if ribbon cable is plugged properly."

[BlackNight]

Hi Mahendran,

It could be that the GDB server somehow is hanging on your side. You might check the tips and tricks listed here: https://mcuoneclipse.com/2014/11/03/debugging-failure-check-list-and-hints/ 

I hope this helps,

Erich

[mahendranmanoha]

Hi Erich,

If I restart the Laptop, I am not getting that issue. Will that be an issue with the RAM and/or processing power of the Laptop.

After restarting, when I tried to Debug, I was presented the error "No source available for "__isr_vector() at 0x0"". Not sure what the issue is. Could you please help me with this.

best regards,

Mahendran

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