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Flashing/debugging TWR-K21F120M

Question asked by martis on Oct 14, 2016
Latest reply on Oct 25, 2016 by Jonathan Iglesias

I am not able to connect to my TWR-K21F120M kit. Previously, I have used it from Kintetis Desing Studio with the built in PNE interface but all of a sudden this does not show pop-up as an option when pressing the Debug Button. 

 

Here, only OpenOCD and Segger are available.

 

Trying to use J-trace also gives me an error message, and when trying to connect with J-Flash I get the error message "Kinetis (connect): Communication error while accessing AHB-AP."

 

How can I connect to my TWR-K21F120M kit again?

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