Belkin F5D7230 v1000 JTAG pinout & guide

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Eko
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PostPosted: Thu Sep 28, 2006 14:45    Post subject: Belkin F5D7230 v1000 JTAG pinout & guide Reply with quote
Long story short: some months ago I got bricked Belkin f5d7230 v1000. I tried all possible and "impossible" things - shorthing pins too.

The board is RT210W (it is the same in Siemens SE505 v1, ....)

There is 20 pin header on board - totally undocumented. It is NOT jtag.

As pictures tell 1000 words, here they are: (look for RA11 - under mini-pci card)

To flash use latest wrt54g v4.8, with these parameters: /fc:29 /nocwd /nobreak /noreset

And "my" belkin is happy again... doing some routing.
Code:
C:\Temp\jtag>wrt54g -probeonly /nobreak /fc:29

====================================
WRT54G/GS EJTAG Debrick Utility v4.8
====================================

Probing bus ... Done

Instruction Length set to 5

CPU Chip ID: 00000100011100010000000101111111 (0471017F)
*** Found a Broadcom BCM4702 Rev 1 CPU chip ***

    - EJTAG IMPCODE ....... : 00000000100000000000100100001000 (00800908)
    - EJTAG Version ....... : 1 or 2.0
    - EJTAG DMA Support ... : Yes

Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Done
Halting Processor ... Skipped
Clearing Watchdog ... Done

Manual Flash Selection ... Done

Flash Vendor ID: 00000000000000000000000011000010 (000000C2)
Flash Device ID: 00000000000000000010001010101000 (000022A8)
*** Manually Selected a MX29LV320B 2Mx16 BotB      (4MB) Flash Chip ***

    - Flash Chip Window Start .... : 1fc00000
    - Flash Chip Window Length ... : 00400000
    - Selected Area Start ........ : 00000000
    - Selected Area Length ....... : 00000000



 *** REQUESTED OPERATION IS COMPLETE ***



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Last edited by Eko on Tue Mar 06, 2007 6:20; edited 5 times in total
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Eko
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PostPosted: Thu Sep 28, 2006 14:46    Post subject: Reply with quote
Back side of PCB wired - grey is GND.


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Seth7
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PostPosted: Thu Sep 28, 2006 14:50    Post subject: Reply with quote
Where do these go to on the CPU ???

That is kinda close layout as the wr850GV1 ...

or a pic showing about where they go to ..

_________________
WRT54G,GS v1.1, V2, V3 V4, V5
WR850G V2, V3
Fonera 2100
Eko
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Posts: 5771

PostPosted: Thu Sep 28, 2006 14:54    Post subject: Reply with quote
They go to top-left of CPU. TMS goes to A4 pin - other somewhere inside but close.
See picture 1.
Seth7
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PostPosted: Thu Sep 28, 2006 15:06    Post subject: Reply with quote
What kind of scope where you using?? and do you have a sample wave form ??
_________________
WRT54G,GS v1.1, V2, V3 V4, V5
WR850G V2, V3
Fonera 2100
Eko
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Joined: 07 Jun 2006
Posts: 5771

PostPosted: Thu Sep 28, 2006 15:10    Post subject: Reply with quote
Just multimeter....
I compared known working pinout on my Buffalo WLA-G54, where I can trace TMS to A4, but then took me 6 tries to found other 3 lines.
Seth7
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PostPosted: Thu Sep 28, 2006 15:15    Post subject: Reply with quote
Using continuity testing(ohms) ... or voltage??
_________________
WRT54G,GS v1.1, V2, V3 V4, V5
WR850G V2, V3
Fonera 2100
Eko
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Joined: 07 Jun 2006
Posts: 5771

PostPosted: Thu Sep 28, 2006 15:20    Post subject: Reply with quote
kg m^2 s^-3 A^-2

Last edited by Eko on Thu Sep 28, 2006 15:30; edited 1 time in total
Seth7
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Location: DN17IQ

PostPosted: Thu Sep 28, 2006 15:22    Post subject: Reply with quote
Eko wrote:
kg m^2 s^-3 A^-2



Not sure what that means ..

_________________
WRT54G,GS v1.1, V2, V3 V4, V5
WR850G V2, V3
Fonera 2100
Eko
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Joined: 07 Jun 2006
Posts: 5771

PostPosted: Thu Sep 28, 2006 15:23    Post subject: Reply with quote
Seth7 wrote:
Eko wrote:
kg m^2 s^-3 A^-2



Not sure what that means ..

Learn....


Last edited by Eko on Thu Sep 28, 2006 15:31; edited 1 time in total
Seth7
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PostPosted: Thu Sep 28, 2006 15:28    Post subject: Reply with quote
on a volt/ohm meter .. iv never heard of a term "kg" .. lets start with that...

Im in the usa.. and using us equipment ..

_________________
WRT54G,GS v1.1, V2, V3 V4, V5
WR850G V2, V3
Fonera 2100


Last edited by Seth7 on Thu Sep 28, 2006 15:29; edited 1 time in total
Eko
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Posts: 5771

PostPosted: Thu Sep 28, 2006 15:29    Post subject: Reply with quote
Hint: http://www.alcyone.com/max/reference/physics/units.html
Seth7
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PostPosted: Thu Sep 28, 2006 15:37    Post subject: Reply with quote
newton N kg m/s2 kg m s-2 force
ohm O V/A kg m2 s-3 A-2 resistance <------ this one??
pascal Pa N/m2 kg m-1 s-2 pressure
volt V W/A kg m2 s-3 A-1 voltage <-------or this??

or show me ths settin gon your multimeter .. via a picture ... im sure i cluold figure it from that

_________________
WRT54G,GS v1.1, V2, V3 V4, V5
WR850G V2, V3
Fonera 2100
Eko
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Joined: 07 Jun 2006
Posts: 5771

PostPosted: Thu Sep 28, 2006 15:40    Post subject: Reply with quote
Of course it's OHMs. I put it on beeper - if conducting -> beeeeeeeeep
(Are you really only 7 ?)


Last edited by Eko on Thu Sep 28, 2006 15:41; edited 1 time in total
Seth7
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Joined: 16 Aug 2006
Posts: 670
Location: DN17IQ

PostPosted: Thu Sep 28, 2006 15:40    Post subject: Reply with quote
Seth7 wrote:
newton N kg m/s2 kg m s-2 force
ohm O V/A kg m2 s-3 A-2 resistance <------ this one??
pascal Pa N/m2 kg m-1 s-2 pressure
volt V W/A kg m2 s-3 A-1 voltage <-------or this??

or show me ths settin gon your multimeter .. via a picture ... im sure i cluold figure it from that


Ok .. got it.. testing Ohms .. to ground...

_________________
WRT54G,GS v1.1, V2, V3 V4, V5
WR850G V2, V3
Fonera 2100
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