JTAG_MOD

cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 

JTAG_MOD

Jump to solution
2,218 Views
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

Labels (1)
0 Kudos
1 Solution
1,706 Views
igorpadykov
NXP Employee
NXP Employee

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

View solution in original post

0 Kudos
3 Replies
1,706 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

0 Kudos
1,707 Views
igorpadykov
NXP Employee
NXP Employee

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

0 Kudos
1,706 Views
igorpadykov
NXP Employee
NXP Employee

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

-----------------------------------------------------------------------------------------------------------------------

Note: If this post answers your question, please click the Correct Answer button. Thank you!

-----------------------------------------------------------------------------------------------------------------------

0 Kudos