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[b32b]

QUOTE(Chemodile @ Dec 15 2009, 03:51 AM)

The RJ45 couplers I ordered from Hong Kong finally came in the other day so I was able to finish this. I love the idea of hiding a nand IO jack under the hard drive, so I added a nand write protect switch to the design as well. (IMG:style_emoticons/default/smile.gif)

Here are some pics:
(IMG:http://i195.photobucket.com/albums/z162/unplughal/JasperSPI/spi_nwp-internalS.jpg)
(IMG:http://i195.photobucket.com/albums/z162/unplughal/JasperSPI/spi_nwp-sideS.jpg)
(IMG:http://i195.photobucket.com/albums/z162/unplughal/JasperSPI/spi_nwp-caseS.jpg)
(IMG:http://i195.photobucket.com/albums/z162/unplughal/JasperSPI/spi_swp-cableS.jpg)

If anyone else wants to do this, the switch I used is Radioshack part number 275-0009. Be careful not to get hot glue on the button portion of the switch or you won't be able to push it. If you get some on it by accident you should be able to remove it with a cotton swab and some acetone-based nail polish remover.

What is the wire on the chip and the switch it's connected to for?

This post has been edited by b32b: Dec 25 2009, 02:34 AM

[hcaa]

QUOTE(b32b @ Dec 24 2009, 05:32 PM)

What is the wire on the chip and the switch it's connected to for?

Read the pictures. It's for enabling the write protect mode for the NAND.

[b32b]

.

This post has been edited by b32b: Dec 25 2009, 05:37 AM

[kbennett]

Props for this great tutorial. I am almost finished with building my cable, but I've come onto a snag when I connect both sides of the cables to my RJ-45 coupler/extender... That my setup is not working for me... I've dismantled my project twice to make sure that there wasn't no cold solder points on any on the cables (on the motherboard and on the cable that has the LPT adaptor)...

Here's the deal:

I though that the coupler wasn't working before I removed all the cables the first time...  So I've made sure that every cable was very securely soldered the second time round (with better quality) cat 5 cables ...
And the coupler seems to work fine when I use it to extend any of my network cables.


This time I left the whole length of cable directly connected to the LPT adapter and I can access my NAND.
But when I cut the cables, put RJ-45 plugs on each end and connect it to the RJ-45 coupler/extender....
No dice!!!  (IMG:style_emoticons/default/grr.gif)

Reconnecting each strand to its corresponding color validates that I didn't loosen any cables this time round either ... I just want to finish this setup and close up my box.  This time I believe I must ask for help. I suspect that is has to do with the order I've arranged for the cables in each RJ-45 plug that goes into the coupler.

I've connected the cables to the RJ-45 plugs in the following color order (and inversed the order when that didn't work):

White-orange / Orange / White-Green / Blue / White-Blue / Green / White-Brown / Brown

Sorry for the lengthy post, but don't know what else to do.... There's people that managed to get their cable working this way, so it really works. I am just stuck here. Deeply appreciate your help/comments. What order you've arranged your cables on the plugs? Or am I missing something else? Could it be the 8th wire that is not used? Because I put it on the plugs also. Thanks for you help.

Sincerely yours

-- Keith Bennett --

This post has been edited by kbennett: Dec 28 2009, 08:43 AM

[Whatssup]

Same problem here...I think this is an excellent design concept, it just doesn't work for me when connected through cat5, I keep getting "no flash controller detected", but when I wire directly dumps perfect each time! Currently dumping third time as I write and no errors yet! So to all who are having the "no flash controller detected" error, I recommend taking off the cat5 male ends and wire directly!

P.S. Cat5 cable is a belkin orange cable, all other parts (db25, resistors, diodes, female to female cat5 extender) were all from radio shack if that helps any!

This post has been edited by Whatssup: Dec 28 2009, 11:08 PM

[kbennett]

I guess I'll leave it then with the single cable solution, it also gets the job done  
Now I will backup my NAND  and proceed with the patching/flashing procedure.
Thanks for the reply buddy... See you around and take care.


-- Keith Bennett --

[b32b]

I heard that you can update XBR by just plugging a usb drive in and using Xell, so is there any use in permanently having the nand dumping wires installed like this?

[shyUK]

Guys, if you are using an already constructed CAT5 cable then make sure it is not a crossover cable, this will cause it not to work through the coupler when following the colours, as 2 of your wires will be crossed.

[Whatssup]

Wasn't my case here...I used a patch cable! I found that the actual problem lied in the female to female cat5 extender! Not sure if was just the one I got (Radioshack) or what, but I disassembled it, and found that it was actually reversing the wires! (i.e if it was 1-7 on one side, you would have to wire 7-1 on the other side for it be correct :-/) Oh, well might wire up again myself with couplers, but at least know I know where the problem layed!

[shyUK]

Wasn't aimed at anyone in particular, just some advice in general, many routers come with what you think is a free patch cable and they are actually crosswired, don't know why, but they are.  It's worth just double checking if you are not having any success, rather than de-solder, re-solder etc.

[Whatssup]

Oh I wasnt taking it personally...sorry if you thought I was! I was trying to descrtibe my situation a little more! And I know what you mean about being crosswired, because just as I was saying those female to female cat5 extenders I had were...talk about hours of headache...ahh, anyways I'm just trying help people check their setups as you are too!! But thanks for the info as even though I didn't use one of this I will know watch to make sure all my cables I use patch and not crossovers, as I did't realise crossovers were reversed like that!

This post has been edited by Whatssup: Yesterday, 02:15 AM

[shyUK]

No worries, I didn't think you'd taken it personally, I just thought that I would clarify that I wasn't saying this was the answer to any post in particular on here, just something to keep in mind.
Having a crossover cable is actually handy, as you can connect 2 pcs directly or pc direct to satellite box and all modern routers will autosense a crossover cable so they can be used normally to connect to routers, but in the case of this jtag setup they can be a complete pain.
As for a reverse wired coupler that is correct, the RJ45 plugs face each other, so if pin 1 was on the left, then on the other side pin 1 would be on the left so they must be reverse wired, they can't be wired straight through, that would give pin 1 to 8, 2 to 7, 3 to 6 etc. they can only be wired straight through if 1 RJ45 male is inserted flipped.

[Martinchris23]

QUOTE(shyUK @ Dec 30 2009, 09:50 AM)

No worries, I didn't think you'd taken it personally, I just thought that I would clarify that I wasn't saying this was the answer to any post in particular on here, just something to keep in mind.
Having a crossover cable is actually handy, as you can connect 2 pcs directly or pc direct to satellite box and all modern routers will autosense a crossover cable so they can be used normally to connect to routers, but in the case of this jtag setup they can be a complete pain.
As for a reverse wired coupler that is correct, the RJ45 plugs face each other, so if pin 1 was on the left, then on the other side pin 1 would be on the left so they must be reverse wired, they can't be wired straight through, that would give pin 1 to 8, 2 to 7, 3 to 6 etc. they can only be wired straight through if 1 RJ45 male is inserted flipped.

MDI/MDI-X auto-switching is also present in the majority of new Ethernet cards, so the need for having crossover cables is becoming less and less. Just an FYI

[Whatssup]

Yeah that actually was my problem. I wired straight through, and I think a lot of people are doing the same! I read a lot threads on the net when troubleshooting mine, and there were a lot of people having the exact same issues as I was, with almost the exact same setups! I think people aren't realizing that you have to reverse it on one side in order for it to be wired correctly for this! Maybe someone could edit the first page to reflect this! I dunno just a suggestion!

[sabbath_dude]

QUOTE(Whatssup @ Dec 30 2009, 02:55 PM)

Yeah that actually was my problem. I wired straight through, and I think a lot of people are doing the same! I read a lot threads on the net when troubleshooting mine, and there were a lot of people having the exact same issues as I was, with almost the exact same setups! I think people aren't realizing that you have to reverse it on one side in order for it to be wired correctly for this! Maybe someone could edit the first page to reflect this! I dunno just a suggestion!

I overlooked that potentially causing confusion. I just assumed most would know the difference. I've now added an extra note in the parts list along with a link detailing the difference between the two types of cable   .