i.MX ProcessorsのトピックRe: IDE with support Secure JTAG

IDE with support Secure JTAG

zlobniy — Fri, 31 Jul 2015 13:41:41 GMT

The document AN4686 is an example to work with Lauterbach Trace32, there are still some IDE with support Secure JTAG?

Is J-Link support Secure JTAG?

Re: IDE with support Secure JTAG

igorpadykov — Sat, 01 Aug 2015 15:35:17 GMT

HI Andrey

according to segger forum

http://forum.segger.com/index.php?page=Thread&threadID=1846

FAQ

"In general, you can write an application with the J-Link SDK which implements

this "authentication" via the SJTAG unit and once this is done,

you should be able to perform operations via the regular debug interface via J-Link"

Also one can implement this using sdk

https://www.segger.com/jlink-sdk.html

Seems such solution can be used with any ide supporting cortex a9.

Best regards

igor

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Re: IDE with support Secure JTAG

zlobniy — Thu, 06 Aug 2015 07:17:15 GMT

Hi Igor

Thanks for your reply.

Is there document that describes the procedure SJTAG?

Re: IDE with support Secure JTAG

skxo — Sat, 22 Oct 2016 12:11:57 GMT

Dear Igor,

I would like to try to use j-link to connect imx6 using secure JTAG, but I have some concerns.

Presently, I am able to write scripts to set the attachment to the imx6 core 0 and the others, using jlinkGDBserver. It works fine.

But concerning Freescale Secure JTAG, Seeger did not give any example of scripts and the different commands to send to the SJC are not described into the AN4686.pdf.

If you look Into the lauterbach scripts which perform the secure jtag, the script imx_attach_secured.cmm is encrypted.

So you cannot use the lauterbach script to adapt on segger probe.

Do you think it is possible to obtain the complete sequence of commands to correctly get the challenge and send the response during this secure jtag authentication?

Do you have any idea how to implement this challenge response mechanism?

Thanks by advance for your help.

Francois

Re: IDE with support Secure JTAG

joanvicient — Thu, 03 Nov 2016 07:59:36 GMT

Hi Francois,

Did you get your Secure JTAG working?

Igor, AN4686.pdf does not specify anything about times. The response key can be sent anytime?

I'm trying to connect an iMX6 Solo with Segger JTAG Plus. I cannot show unique ID. I've tried wjd and wjc commands (JLinkExe) without success.

If I programmed all 32 bits of OCOTP_HSJC_RESP1, high bits just does not matter or can it be a problem?

Thanks in advance for your help.

Re: IDE with support Secure JTAG

igorpadykov — Thu, 03 Nov 2016 09:21:38 GMT

ARM added support to this (AN4686) in DS-5 around version 5.15.

Best regards
igor

Re: IDE with support Secure JTAG

skxo — Wed, 25 Jan 2017 18:28:44 GMT

Hi,

sorry about the delay. I just get a lauterbach probe and fix this job.

Re: IDE with support Secure JTAG

michael_galda — Fri, 08 Mar 2019 12:24:28 GMT

Hi Joan, Francois,

I have just found this thread.

Have you been able to make the Secure JTAG Challenge-Response sequence working with Segger J-Link or anything else?

I have to do the same. But I am bit lost, because it is really not documented!

Many thanks for your possible hints!

Kind regards,

Michael

Re: IDE with support Secure JTAG

michael_galda — Fri, 08 Mar 2019 12:25:30 GMT

Hi Francois,

I have just found this thread.

Have you been able to make the Secure JTAG Challenge-Response sequence working with Segger J-Link or anything else?

I have to do the same. But I am bit lost, because it is really not documented!

Many thanks for your possible hints!

Kind regards,

Michael