S32KのトピックRecoverin JTAG lines to default state

Recoverin JTAG lines to default state

jaikumar81 — Tue, 27 Oct 2020 07:47:18 GMT

Dear Team

We noticed there was some problem in port initialization(of Autosar configuration) due to which controller (S32k148-100 pin) is resetting.

To analyze the same and zero down further we have started deactivating few ports(probably deactivated even JTAG lines too).

Due to the above reason, now we are unable to flash the image using S32kDesign studio using PnE debugger. I have attached snapshot of the same.

Kindly share the inputs, how JTAG lines could be recovered to its default state.

Best Regards,

Jayakumar Appari.

Re: Recoverin JTAG lines to default state

Robin_Shen — Tue, 27 Oct 2020 08:24:54 GMT

Hi jaikumar81,

Please try to use the P&E Recovery Utility described in "Bricking and Recovering FRDM-KL25Z Boards: Reset, SWD Clock and Low Power".

Best Regards,
Robin
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Re: Recoverin JTAG lines to default state

jaikumar81 — Tue, 27 Oct 2020 11:54:59 GMT

Hello Robin,

thanks for sharing the supporting link.

I have tried couple of retries(S32k148-100, custom board) with Kinetis_Recovery_Utility , and has following error "could not place the controller in halt state", when connected to the target with PnE debugher (using USB Multi Link)

To verify whether Kinetis_Recovery_Utility is actually testable on S32K, I have tried with S32k148-144(eval board) in openSD mode.

However with eval board too, I have same error "could not place the controller in halt state".

I am expecting this(Kinetis_Recovery_Utility) should have worked atleast on eval board.

There are no issues in connecting to eval board(in OpenSd mode) and also with PnE debuger, I could connect other custom board (S32k!48-100)too.

Kindly let me know, if there is any other means to change the default state of JTAG lines.

Best regards,

Jayakumar Appari.

Re: Recoverin JTAG lines to default state

Robin_Shen — Wed, 28 Oct 2020 09:11:50 GMT

When I use the old version of Kinetis_Recovery_Utility, it was able to halt it.(on board OpenSDA of S32K148EVB and external P&E Multilink RevB )
But when use the latest version Kinetis_Recovery_Utility, it does not work.
I have attached the old version of Kinetis_Recovery_Utility.

Re: Recoverin JTAG lines to default state

jaikumar81 — Sun, 01 Nov 2020 05:33:20 GMT

Hello Robin

thanks for sharing the software.

I have tried with the shared software, it too did not work for me.

Thinking to cross check the hardware setup I have for the custom board, will diagnoses and reply back.

Best Regards,

Jayakumar Appari.