DIR-400 and JTAG

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dobrinia
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Joined: 04 Jul 2008
Posts: 4
PostPosted: Fri Jul 04, 2008 12:25    Post subject: DIR-400 and JTAG Reply with quote
Not loaded DIR-400. Connect through the terminal:
Code:
RedBoot(tm) bootstrap and debug environment [ROMRAM]
Non-certified release, version UNKNOWN - built 16:18:06, Aug 21 2007
Copyright (C) 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
Board: ap61
RAM: 0x80000000-0x82000000, [0x8003fb80-0x80fe1000] available
FLASH: 0xbfc00000 - 0xbfff0000, 64 blocks of 0x00010000 bytes each.
No board config data found!
+flash_hwr_init: flash device - id=21
**Warning** FLASH configuration checksum error or invalid key
Use 'fconfig -i' to [re]initialize database
... waiting for BOOTP information
Ethernet eth0: MAC address 00:1c:f0:f6:ed:79
Can't get BOOTP info for device!

CTRL + C gives the same results.
More than any combination of the console did not wish to handle.
Again went smoking forums, concluded that the need JTAG.
JTAG to come unsoldered on the scheme known for a 5-ty resistors.
Dance with diamonds - defined chip:
Code:
D:\jtag>jtag -probeonly
==========================================
 EJTAG Debrick Utility v2.1.4-Tornado-MOD
==========================================
Probing bus ... Done
Instruction Length set to 5
CPU Chip ID: 00000000000000000000000000000001 (00000001)
*** Found a Atheros AR531X/231X CPU chip ***
    - EJTAG IMPCODE ....... : 00000000000000000000000000000000 (00000000)
    - EJTAG Version ....... : 1 or 2.0
    - EJTAG DMA Support ... : Yes
    - EJTAG Implementation flags: R4k MIPS32
Issuing Processor / Peripheral Reset ... Done
Enabling Memory Writes ... Done
Halting Processor ... <Processor did NOT enter Debug Mode!> ... Done
Clearing Watchdog ... DoneDone
Enabling Atheros Flash Read/Write ... Done
Probing Flash at (Flash Window: 0x1fc00000) ... Done
*** Unknown or NO Flash Chip Detected ***
 *** REQUESTED OPERATION IS COMPLETE ***
D:\jtag>

Does not recognize the memory, respectively nemogu fill firmware. At memory written 25p32vbp.
Maybe those who help ...

25P32vbp.jpg
 Description:
25P32vbp
 Filesize:  116.27 KB
 Viewed:  325 Time(s)

25P32vbp.jpg
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L-ZiX
DD-WRT Novice


Joined: 16 Jun 2008
Posts: 31
Location: Kazakhstan
PostPosted: Sat Jul 05, 2008 22:46    Post subject: Reply with quote
Are you know how pins of serial on board dir-400 ?
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dobrinia
DD-WRT Novice


Joined: 04 Jul 2008
Posts: 4
PostPosted: Sun Jul 06, 2008 9:46    Post subject: Reply with quote
L-ZiX wrote:
Are you know how pins of serial on board dir-400 ?


Yes. I use cable with PL-2303:

S1050373.JPG
 Description:
Serial DIR-400
 Filesize:  127.46 KB
 Viewed:  317 Time(s)

S1050373.JPG
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L-ZiX
DD-WRT Novice


Joined: 16 Jun 2008
Posts: 31
Location: Kazakhstan
PostPosted: Sun Jul 06, 2008 20:48    Post subject: Reply with quote
I have 4 units with this error. Please help us!
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dobrinia
DD-WRT Novice


Joined: 04 Jul 2008
Posts: 4
PostPosted: Sun Jul 06, 2008 21:31    Post subject: Reply with quote
If you are able to connect the router via serial port, then put his boot log here.
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tklim
DD-WRT Novice


Joined: 28 Jun 2008
Posts: 12
Location: Zaporozhye, Ukraine
PostPosted: Mon Jul 07, 2008 10:27    Post subject: Re: DIR-400 and JTAG Reply with quote
dobrinia wrote:

Does not recognize the memory, respectively nemogu fill firmware. At memory written 25p32vbp.
Maybe those who help ...

May be, 25P32V6P
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dobrinia
DD-WRT Novice


Joined: 04 Jul 2008
Posts: 4
PostPosted: Mon Jul 07, 2008 12:30    Post subject: Reply with quote
Yes, 25P32V6P Very Happy
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NeMetS_666
DD-WRT Novice


Joined: 12 Apr 2009
Posts: 7
PostPosted: Sun Apr 12, 2009 15:40    Post subject: Reply with quote
My router DIR-400 didn't loaded too.

As I undestend... I need solder 25P32vbp to LPT (http://bemberlanda.net/images/stories/repair/sheme.png)

Or exists another way?
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new_bember
DD-WRT User


Joined: 01 Aug 2008
Posts: 79
PostPosted: Tue Apr 14, 2009 11:18    Post subject: Reply with quote
you can also use serial connection via pl2303 cable, to see inside when router loading, than try to set up BOOTP server and try to flash router via tftp.
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grumbler_eburg
DD-WRT Novice


Joined: 14 Mar 2012
Posts: 14
PostPosted: Sun Oct 28, 2012 21:35    Post subject: JTAG pinouts? Reply with quote
Please specify JTAG pinouts for DIR-400
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