RGH Problem: Looking for USB interface device

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mechgamer123

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Sep 11, 2011
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Hi, I've done 12 Jtags in the past and this is my 15th RGH console. I have used these wires for 6 or 7 consoles, and when I try to read the nand, I get "looking for USB interface, can not continue"
I have taken a multimeter to all the points as described in this thread: http://forums.team-xecuter.com/showthread.php?t=77908
And points 1-5 show okay, but I do not have a multimeter strong enough to read point 6. I have also tried installing the QSBs on the top of the console, and I still get the same error. Also, if it makes any difference, I used the nand-x to program a coolrunner right before soldering, and everything completed successfully, so I doubt it's the nand x itself. The nand cable was plugged in slightly sideways, but I took the nand x case off and all the points on the nand x have continuity.

Edit: I also connected the wires and QSB to another console, and I got the same error.
Any Ideas? Also, here's some pictures of my soldering:

 
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Krafter

Krafter

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Apr 17, 2011
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Silly question. Do you have the PSU plugged in to the board? nvm, you wouldn't get this error if this was the case.

Also, do you see the nand-x in device manager?
 
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mechgamer123

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Sep 11, 2011
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Krafter said:
Silly question. Do you have the PSU plugged in to the board? nvm, you wouldn't get this error if this was the case.

Also, do you see the nand-x in device manager?
Click to expand...
Yes, I can still program the coolrunner.

Sent from my DROID3 using Tapatalk
 
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mechgamer123

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Sep 11, 2011
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Krafter said:
Silly question. Do you have the PSU plugged in to the board? nvm, you wouldn't get this error if this was the case.

Also, do you see the nand-x in device manager?
Click to expand...
Yup I am able to program coolrunners still.

Sent from my DROID3 using Tapatalk
 
Krafter

Krafter

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Apr 17, 2011
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How about some pics of the QSB install. Maybe something is shorting there and crowbaring the nand-x.
 
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mechgamer123

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Sep 11, 2011
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Krafter said:
How about some pics of the QSB install. Maybe something is shorting there and crowbaring the nand-x.
Click to expand...
Crowbaring? I'll wire up the QSB again since I already took it off the board. I thought it was wired fine, but I may not have wired up the GND properly and that's what is causing it to not work. Hope that's the case, then I just have to get new wires instead of a new nand x.
EDIT: I just checked the continuity of the nand x wire install cable, and the it's still good.
 
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Martin C

Martin C

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Ok- go back to my NAND-x thread and I want you to report back line for line what your values are. You say they're 'good' but I want to see what you get:

J1D2.1
J1D2.2
J1D2.3
J1D2.4

J2B1.5
J2B1.6
 
Krafter

Krafter

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Apr 17, 2011
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mechgamer123 said:
Crowbaring? I'll wire up the QSB again since I already took it off the board. I thought it was wired fine, but I may not have wired up the GND properly and that's what is causing it to not work. Hope that's the case, then I just have to get new wires instead of a new nand x.
EDIT: I just checked the continuity of the nand x wire install cable, and the it's still good.
Click to expand...
Crowbarring is a term used when an electronic device draws to much power (maybe becasue of a short) and it shuts down.
 
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mechgamer123

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Sep 11, 2011
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Martin C said:
Ok- go back to my NAND-x thread and I want you to report back line for line what your values are. You say they're 'good' but I want to see what you get:

J1D2.1
J1D2.2
J1D2.3
J1D2.4

J2B1.5
J2B1.6
Click to expand...
J1D2.1: 1.2v
J1D2.2: 2.8v
J1D2.3: 1.3v
J1D2.4: 40 ohms

J2B1.5: 3 v
J2B1.6: I don't have a Multimeter strong enough to measure this point...
 
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mechgamer123

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Sep 11, 2011
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Martin C said:
J1D2.2 should be 3v on the nose. Can you recheck?

Your multimeter doesn't support 6kOhm?
Click to expand...
I checked again, and it is only 2.8v.
My multimeter only goes up to 1k...
My friend has one that he says goes up to 20k, and said he would let me borrow it, but he has to find it... :facepalm:

EDIT: I hooked up the nand-x to my friend's zephyr jtag and got the same "can not detect" message. Here are the pictures:


Checked the voltage on these points, and it was the same as the other console, except for point 2, which read about 2.4 volts
 
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