Quad Jtag Question

[Trapofmind]

I have been using this Jtag for years on dozens of 2700-3900's. I finally jumped into the new era with a few 301s and 510s, and I am being overly cautious. I have a 301 going now, cuz it had a ex sub card.

This Jtag I have is supposed to do the 301 but I am unsure how to set it up. Does anyone have the spex on one of these, or could just tell me how to configure it?

[Trapofmind]

Alrighty, I found a diagram. I guess the 310.13 has the same jtag setup as what I have been using all along (2700-3900).

Still, if anyone has any info on this jtag, it would still be useful.

[Bandit5906]

Why not post the diagram for all to see?

[Trapofmind]

Sure. This pic is not pertaining to my particular device, however it does contain the jtag points for the IRDs with jtag pads.

[dakazman]

WOW
do you have the jumpers for it?
is it buffered ? could not see from pics.
Did some reading and found gunther's guide 1.3 has alot of the info for a 301.13
If it worked on a 2700 it should work on a 301.13 . Is it a single or dual?
Just GRD it good and remember in JKEYS to detect and hit the scrool down tab to the correct TSOP - Single or Dual.

dakazman

[Trapofmind]

I dramatically over thought this whole process (I often do). I found out a few seconds before soldering that both 301's I recently acquired have jtag pads on the bottom just like every IRD I have ever done (except the 510).

After cutting a whole in the case, this thing was as easy as a 2700-3900 to read from using my jtag device. I didn't need to vid mod or ground anything, (the jtag device automatically does this I believe - either way, it works!).

EDIT: Out of the two 301's, one was as mentioned above, the other did need R79 grounded, then it jtaged perfectly.