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Author Topic: Easier Way To Wire Jtag?  (Read 74 times)

TBAYJ

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Easier Way To Wire Jtag?
« on: January 12, 2010, 01:35:00 PM »
I just jtag'd my second falcon , and decided to go a diferrent route ..not sure if its been posted before but this was a lot easier and neater/cleaner

since on the falcon soldering to db1f1 is damn hard with no pad on that spot on a falcon i had to use the alt spot ft1ut on bottom and j2d2.2 has to go to bottom of board anyway also ..i thought lets just keep it all on the bottom , that what i did here



(IMG:http://i266.photobucket.com/albums/ii263/JFROMDABAY/CIMG0109.jpg)


nothing on top to of board to be concerned with and just put some extra thermal pads on the dioded to protect them ( btw the 330 ohm resistor @ j2d2.4 to j2d2.7  was neccasary or this falcon wouldnt boot  ) ..whatcha think ?
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Ranger72

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Easier Way To Wire Jtag?
« Reply #1 on: January 12, 2010, 01:48:00 PM »
I was thinking of doing that myself. Good idea you got there.  dry.gif
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Choochoo

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Easier Way To Wire Jtag?
« Reply #2 on: January 12, 2010, 04:16:00 PM »
QUOTE(TBAYJ @ Jan 12 2010, 09:35 PM) *

I just jtag'd my second falcon , and decided to go a diferrent route ..not sure if its been posted before but this was a lot easier and neater/cleaner

since on the falcon soldering to db1f1 is damn hard with no pad on that spot on a falcon i had to use the alt spot ft1ut on bottom and j2d2.2 has to go to bottom of board anyway also ..i thought lets just keep it all on the bottom , that what i did here
(IMG:http://i266.photobucket.com/albums/ii263/JFROMDABAY/CIMG0109.jpg)
nothing on top to of board to be concerned with and just put some extra thermal pads on the dioded to protect them ( btw the 330 ohm resistor @ j2d2.4 to j2d2.7  was neccasary or this falcon wouldnt boot  ) ..whatcha think ?



Nice! I like that, if you posted more zoomed in pictures I'd definetly do that, it looks way more out of the way and professional.
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TBAYJ

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Easier Way To Wire Jtag?
« Reply #3 on: January 12, 2010, 05:06:00 PM »
will do all i had was my camera phone while it is 5 mp the lighting sucked
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ian_hard

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Easier Way To Wire Jtag?
« Reply #4 on: January 12, 2010, 05:19:00 PM »
nice work just remember to insulate all your joint
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Ranger72

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Easier Way To Wire Jtag?
« Reply #5 on: January 12, 2010, 07:01:00 PM »
Since it is a good idea to be under the board anyway to remove the efuse resister may as well go ahead and do the jtag under there as well.
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TBAYJ

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Easier Way To Wire Jtag?
« Reply #6 on: January 12, 2010, 08:39:00 PM »
efuse resistor ? what that do ..stop possible updates ? something i may need to know
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Downcastnut

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Easier Way To Wire Jtag?
« Reply #7 on: January 12, 2010, 09:29:00 PM »
if you remove R6T3 on the bottom of the board it disables the efuses from updating.
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jeffrey92

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Easier Way To Wire Jtag?
« Reply #8 on: January 13, 2010, 03:03:00 PM »
Its funny to see this being posted. I accidentally messed up a pad or 2 on the top side of my Xenon board, but seeing as how the 3 required traces were on the bottom anyways I decided to do all the connections under the board.

Doing this helps the top be less messy and make more room. The only thing you have to be careful about is if any parts of the wires are somewhat exposed you should put electrical tape around it so when you put it back into the case it doesn't short or come into contact with other points on the board.
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norm360

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Easier Way To Wire Jtag?
« Reply #9 on: January 13, 2010, 06:23:00 PM »
How easy is it soldering the diodes to the board?

Would it be safer to solder a small wire first and connect the diode to that?
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craz3d

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Easier Way To Wire Jtag?
« Reply #10 on: January 13, 2010, 08:06:00 PM »
I had no problem soldering directly to the board, but as long as you can solder well, there should be no problems with using a smaller gauge wire instead of directly to the board.  Just keep it short and clip the leads of the diode to keep everything neat smile.gif
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Guy Montag

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Easier Way To Wire Jtag?
« Reply #11 on: January 14, 2010, 08:39:00 AM »
I had a hard time soldering the diode directly to the mobo so I did a wire from the point and soldered that to the diode.
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red_ring_of_box

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Easier Way To Wire Jtag?
« Reply #12 on: January 14, 2010, 05:10:00 PM »
nice one dude I also decided to solder my jtag point there too instead of the IR pcb as my wire would always snap when I closed my case and just give me and E79. I was thinking of posting it here when I found out it worked but was too lazy tongue.gif

 oh well good job just one suggestion, you may want to insulate your bare wires so you don't short it out on any of the boards other solder points or on the case of the board itself. Super glue maybe?
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TBAYJ

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Easier Way To Wire Jtag?
« Reply #13 on: January 14, 2010, 05:37:00 PM »
yeah if u seen in my first post i mentioned that i used thermal pads to protect the exposed wire , and keep the diodes from getinng crushed if possible
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DARKFiB3R

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Easier Way To Wire Jtag?
« Reply #14 on: January 19, 2010, 08:17:00 PM »
Nice one TBAYJ, I used this method today. Made diagram and took a few pics too.

IPB Image

More pics
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