Kinetis Design Studio 3.2 Could not connect to target (Kwikstik K40)

[mahendranmanoha]

Hi,

I am using Kinetis Design Studio 3.2 with KSDK 1.3 to work on Kwikstik K40 Rev 5.0.

If I create a new KSDK1.3 project, Use MQX_RTOS, Generate Code and Debug, I can Debug the project for the first time. If I try to Debug for the second time and later on I get the error as below. 

"WARNING: CPU could not be halted
ERROR: Could not connect to target.
Target connection failed. GDBServer will be closed...Restoring target state and closing J-Link connection...
Shutting down..."

I could build the project without any issues. I have attached the screenshot for reference.

I am stuck with this issue for more than 2 weeks. Your help would enable me to move forward.

best regards,

Mahendran

[Alice_Yang]

Hello Mahendran,

- Please first check the Device name :

-Please delete the .metadata folder under workspace , the re-open KDS to have  a try.

- If still can not work well , please create a simple bareboard project to check whether it can work well.

Hope it helps

Alice

[mahendranmanoha]

Dear Alice,

I changed the device name. 

I tried the following options with same result as I was getting before.

1. Deleted .metadata and tried Debugging.

2. Created Bare Metal project without MQX_KSDK and tried Debugging.

One silly clue I have, that is when I turn ON the laptop first time on a day, KDS debug successfully. Later, even if I restart the laptop on the same day, no success.

What could be the one that I am missing in the process?

I am so much waiting to move forward.

best regards,

Mahendran.

[Alice_Yang]

Hello Mahendran,

Sorry I don't know the mainly reason, while I recommend you re-install KDS to have  a try .

BR

Alice

[mahendranmanoha]

Hi Alice,

I created SDK for MK40DX256xxx10 with KSDK 2.0 separately with MCUXpresso and crreated a new project in KDS 3.2 referring to the folder.

I could successfully Build, Debug and Run the project from KDS 3.2 on Kwikstik K40. 

I reckon KSDK 2.0 does not support MQX. Is there a way I can develop MQX projects with KSDK 2.0 or I should use only KSDK 1.3?

Best regards,

Mahendran.

[Alice_Yang · Accepted solution]

Hello Mahendran,

Yes, KSDK 2.0 doesn't support MQX, and the new version KSDK in the futures also don't support MQX.

While it support FreeRTOS, maybe you take it into account .

BR

Alice