Need jtag cable to unbrick f5d7230-4 v1444

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rung
DD-WRT Novice


Joined: 30 Jan 2007
Posts: 7
Location: Lisbon, Portugal

PostPosted: Thu Feb 01, 2007 10:34    Post subject: Need jtag cable to unbrick f5d7230-4 v1444 Reply with quote
Hi,

I'm looking for instructions on how to build a jtag cable for my f5d7230-4 v1444. I have already searched this forum and google, but I could find a guide that fits my model/version.

Thanks

_________________
Buffalo WHR-G54S
DD-WRT v23 SP2 (09/13/06) vpn-special
----------------------&--------------------------
Belkin F5D7230-4 v1444
DD-WRT v23 SP3 (02/01/07) micro
Sponsor
Eko
DD-WRT Developer/Maintainer


Joined: 07 Jun 2006
Posts: 5772

PostPosted: Thu Feb 01, 2007 13:45    Post subject: Reply with quote
JTAG pinout for the Belkin F5D7230 v1444 is:

3 TDO
5 TDI
7 TCK
9 TMS
rung
DD-WRT Novice


Joined: 30 Jan 2007
Posts: 7
Location: Lisbon, Portugal

PostPosted: Thu Feb 01, 2007 14:39    Post subject: Reply with quote
Eko,

thank you for the info, but I can't find the pins on my board. I hope the following images can help you to point me the correct pins, please?

Thanks



IMG_0088.JPG
 Description:
F5D7230-4 v1444 Front
 Filesize:  3.51 MB
 Viewed:  8310 Time(s)

IMG_0088.JPG



IMG_0089.JPG
 Description:
F5D7230-4 v1444 Front
 Filesize:  3.49 MB
 Viewed:  8310 Time(s)

IMG_0089.JPG



_________________
Buffalo WHR-G54S
DD-WRT v23 SP2 (09/13/06) vpn-special
----------------------&--------------------------
Belkin F5D7230-4 v1444
DD-WRT v23 SP3 (02/01/07) micro
Eko
DD-WRT Developer/Maintainer


Joined: 07 Jun 2006
Posts: 5772

PostPosted: Thu Feb 01, 2007 16:29    Post subject: Reply with quote
It's J7 (pins 1and 2 labeled) - GND is on pins 4,6,8,10
(first picture - bottom right)

so:

Code:
?   2  1  ?
gnd 4  3 tdo
gnd 6  5 tdi
gnd 8  7 tck
gnd 10 9 tms
rung
DD-WRT Novice


Joined: 30 Jan 2007
Posts: 7
Location: Lisbon, Portugal

PostPosted: Sat Feb 03, 2007 0:22    Post subject: Reply with quote
Great!!!! I've built a JTAG cable and could manage to get it back to live.

I noticed that all my mac addresses have changed. Is this a problem?

Regards

_________________
Buffalo WHR-G54S
DD-WRT v23 SP2 (09/13/06) vpn-special
----------------------&--------------------------
Belkin F5D7230-4 v1444
DD-WRT v23 SP3 (02/01/07) micro
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