Debrick advice please

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kudos
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Joined: 20 Jul 2009
Posts: 5

PostPosted: Sat Jul 17, 2010 22:02    Post subject: Debrick advice please Reply with quote
I have a Linksys WAP54G v2 which I foolishly bricked by flashing with Eko's faulty micro 14818 build rather than checking here in this forum for comments...

Hey-ho, this is a new experience for me so sorry if I appear dumb but I have read up on debricking procedures and there is a lot of contradicting stuff out there.

The unit does not respond to pings, even after several 30/30/30 reset attempts so I believe that my only option is JTAG.

From what I can gather, it is simply a case of making a cable from my RS232 serial port to the WAP54G main board.

So I have made one using pin-outs from various guides but when I start a terminal session, I am unable to access a serial console. I know that my cable is fine because if I short TX and RX then I get my characters echoed back at me.

Can anyone offer any advice for what I may be doing wrong - or suggestions for an alternate debricking method? Thanks in advance.
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Dark_Shadow
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Joined: 31 Aug 2009
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Location: Third Rock from the Sun

PostPosted: Sat Jul 17, 2010 22:10    Post subject: Reply with quote
Bad connections at the main board of the router?


Try swapping rx and tx see if that makes a difference.

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kudos
DD-WRT Novice


Joined: 20 Jul 2009
Posts: 5

PostPosted: Sat Jul 17, 2010 22:19    Post subject: Reply with quote
Thanks for that - I should have said that swapping TX and RX was one of the first things that I tried.

I read in one article that I need resistors rather that just cable - is this the case?
Dark_Shadow
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Joined: 31 Aug 2009
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Location: Third Rock from the Sun

PostPosted: Sat Jul 17, 2010 22:36    Post subject: Reply with quote
kudos wrote:
Thanks for that - I should have said that swapping TX and RX was one of the first things that I tried.

I read in one article that I need resistors rather that just cable - is this the case?
You need a TTL module is all I know. I bought a pre-built one off EBay.

Try this thread

http://www.dd-wrt.com/phpBB2/viewtopic.php?t=56739

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kudos
DD-WRT Novice


Joined: 20 Jul 2009
Posts: 5

PostPosted: Sat Jul 17, 2010 23:05    Post subject: Reply with quote
Oh no! I was hoping to debrick my unit now.

Thanks for your help with this.

Do you know of an alternate debricking method?

From what I have just read, what I am doing is not JTAG. How do I do that? Is it serial port also?
Dark_Shadow
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Joined: 31 Aug 2009
Posts: 2448
Location: Third Rock from the Sun

PostPosted: Sat Jul 17, 2010 23:41    Post subject: Reply with quote
http://www.dd-wrt.com/wiki/index.php/JTAG
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kudos
DD-WRT Novice


Joined: 20 Jul 2009
Posts: 5

PostPosted: Sun Jul 18, 2010 2:00    Post subject: Reply with quote
Ah, the parallel port. How did I miss that? Thank you very much indeed.
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