JTAG_MOD

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JTAG_MOD

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neusch
Contributor II

Hello,

i selected JTAG_MOD = 0 in Hardware to debug i.MX6:

pastedImage_0.png

To check the placement, a boundary scan IEEEE1149.1 will be needed.

It is not possible to populate or unpopulate the pull-down resistor at the pin JTAG_MOD.

Is it possible to select SJC only in Register or otherwise?

Is SW debug and boundary scan possible with the same Hardware?

pastedImage_4.png

thanks for your Information,

Mathias

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igorpadykov
NXP TechSupport
NXP TechSupport

this is unfortunately not possible. Also one can refer

to i.MX6 System Development User’s Guide

http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf

1.jpg

if you have special questions for boundary scan expert

suggest to elevate that using local fae channel

Best regards

igor

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1,113 Views
neusch
Contributor II

Is a boundary scan test possible, when the state of JTAG Controller JTAG_MOD = 0 ?

I think a question for a boundary scan expert.

Thank you Igor

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1,114 Views
igorpadykov
NXP TechSupport
NXP TechSupport

this is unfortunately not possible. Also one can refer

to i.MX6 System Development User’s Guide

http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf

1.jpg

if you have special questions for boundary scan expert

suggest to elevate that using local fae channel

Best regards

igor

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1,113 Views
igorpadykov
NXP TechSupport
NXP TechSupport

Hi Mathias

unfortunately JTAG_MOD state can not be changed from software,

so seems sw debug and boundary scan can not be possible with

the same hardware.

Best regards

igor

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