{NOW SUPPORTED} - Hardware Request (NETGEAR WNR2000 v2)

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darth_tater
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PostPosted: Mon May 17, 2010 23:43    Post subject: Reply with quote
hahah... sorry about the quality of the pictures.

i love my 8900 to death, but it cant do *everything*.

i'll try to get some better quality pictures eventually.

Also, i ordered that cable Smile should be here any day now.


Btw, LOM. Thank you so much for sticking with me through this. It really is nice to come to a forum where the senior members don't shy away from helping the ignorant who are willing to learn. Thank you.
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darth_tater
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PostPosted: Tue May 18, 2010 4:09    Post subject: Reply with quote
Also, something else just occurred to me.

the 10 solder pads here:

http://img33.imageshack.us/img33/4065/img00010201005161100.th.jpg

(remove the th in the URL for full size)

could those be a JTAG port?

if so, how can i tell/test?

I have a (very ghetto) jtag cable that ive used to work with my wrt45g-TM

i'm sure i can get your nvram and cfe dump if i can get this hooked up to jtag.
LOM
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Joined: 28 Dec 2008
Posts: 7212

PostPosted: Tue May 18, 2010 4:38    Post subject: Reply with quote
Those 10 pads are likely the jtag port but it looks like a non-standard pinout so will be of no use for you, will be almost impossible to find out which pin is which.

Normally, odd numbered pins are jtag signals and even numbered pins are ground (except for some cases when one of the even numbered is an additional jtag signal pin).

I thought for once that the pcb screen print had got mirrored but there is as far as I can see one pad without a trace on the even numbered side so it still doesn't fit any known jtag pinout.

Stick to the serial connection, it is much better.
Jtag is completely worthless when it comes to giving you information of what happens in your router, what happens during boot.
Everyone should consider serial connection for debricking his router long before thinking about jtag..

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darth_tater
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PostPosted: Tue May 18, 2010 5:15    Post subject: Reply with quote
what do you mean about serial vs jtag?

Ive got a router (wrt45g-TM) that hasnt worked in some time. one of the pins on the jtag port has shorted out.

as far as i remember (its been bricked for quite a while) the device does not respond to pings and all the lights remain on.


I think there is a working serial port on the device. Once my cable comes, ill try to take a look.

EDIT:

the wrt45g-TM powers up, but all the LAN lights are lit and the power LED blinks. ASAIK, that means that the device is bricked and i will *need* jtag to fix it.

problem is that the jtag port is a bit destroyed since thats where the short occurred.

I take it that the device isn't recoverable via serial?
darth_tater
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PostPosted: Mon May 24, 2010 21:30    Post subject: Reply with quote
Wooo Hooo!

Data cable came in the mail today!

I'll hook it up and give it a test later this evening.

In the mean time, can you give me some instructions on how i can back up the NVRAM and CFE via serial?


i thought that was jtag only.
darth_tater
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PostPosted: Mon May 24, 2010 23:28    Post subject: Pins and stuff Reply with quote
Ok, so i opened it back up... this time with better pics and a multimeter.

the cross pad is GROUND.

here is the clearest pic, with the voltages of each pin.





I have overlayed the voltages from each pin on the images.

--

So, which is which, do you think?
ReadtheAnnouncements!
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Posts: 1362

PostPosted: Mon May 24, 2010 23:40    Post subject: Reply with quote
I would take an educated GUESS that the left pin is vcc, and the other two with power are tx and rx. WAIT FOR SOMEONE ELSE TO POST before trying.

See where the trace from each goes too.

That pict is way too small to be useful.

_________________
If I've said it once, I've must have said it a thousand times! READ the announcements at the start of the broadcom forum!
THESE:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=54889
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=54845
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=52043
(We'll wait....!) Wink
darth_tater
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PostPosted: Mon May 24, 2010 23:57    Post subject: Reply with quote
Thats what i was thinking as well.

I switched a few settings on my camera around; these should be much clearer.

Im thinking that the outter most are the 3.3 and GND.

the pin closest to the outermost 3.3V is going to be the TX.
the pin closest to the ground is the RX.

But why is the RX powered as well as the TX?


darth_tater
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PostPosted: Mon May 24, 2010 23:58    Post subject: Reply with quote
Also, you need to remove the ".th" from the image URL.

once you remove that, the images should be plenty big Smile
ReadtheAnnouncements!
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PostPosted: Tue May 25, 2010 0:03    Post subject: Reply with quote
darth_tater wrote:
But why is the RX powered as well as the TX?


I think when I was monkeying with my serial a day or two ago, both tx and rx had power. But I still suggest you WAIT for Barryware, LOM, or Redhawk to pipe in.

Having vcc at one end and neutral at the other is common, however.

Those pict are still postage stamp size for me.

_________________
If I've said it once, I've must have said it a thousand times! READ the announcements at the start of the broadcom forum!
THESE:
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=54889
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=51486
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=54845
http://www.dd-wrt.com/phpBB2/viewtopic.php?t=52043
(We'll wait....!) Wink
darth_tater
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Joined: 11 Nov 2007
Posts: 55

PostPosted: Tue May 25, 2010 0:05    Post subject: Reply with quote
try these:

http://img85.imageshack.us/img85/3104/fronty.png

http://img526.imageshack.us/img526/5600/rearz.png

and of course the two i posted *just* above. of course, remove the .th from the URL to *not* get a thumbnail.
darth_tater
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Joined: 11 Nov 2007
Posts: 55

PostPosted: Tue May 25, 2010 1:39    Post subject: Reply with quote
WooHoo. My initial guess was right. Rx is right next to the ground pin. TX is the pin next to VCC.



Also, this is the log:

Captured with PUTTY on com 4 (115200 8n1)
this is for:

Firmware Version V1.0.0.34_29.0.45NA
GUI Language Version V1.0.0.34_0.5.0.0


---------------
Code:
=~=~=~=~=~=~=~=~=~=~=~= PuTTY log 2010.05.24 18:34:26 =~=~=~=~=~=~=~=~=~=~=~=
  Decompressing..........done
Decompressing..........done


CFE for WNR2000v2 version: v1.0.18
Build Date: Wed Sep  9 14:33:22 CST 2009
Init Arena
Init Devs.
Boot partition size = 262144(0x40000)
Found a 4MB ST compatible serial flash
et0: Broadcom BCM47XX 10/100/1000 Mbps Ethernet Controller 5.10.56.28
CPU type 0x19749: 300MHz
Tot mem: 32768 KBytes

Device eth0:  hwaddr C0-3F-0E-94-7C-5A, ipaddr 192.168.1.1, mask 255.255.255.0
        gateway not set, nameserver not set
CPU ProcId is: 0x00019749, options: 0x000021cd

Primary instruction cache 32kb, linesize 32 bytes (4 ways)

Primary data cache 32kb, linesize 32 bytes (4 ways)

Linux version 2.4.20 (zacker@svn) (gcc version 3.2.3 with Broadcom modifications) #201 Wed Sep 9 14:41:23 CST 2009

Found a 4MB ST compatible serial flash

Determined physical RAM map:

 memory: 02000000 @ 00000000 (usable)

On node 0 totalpages: 8192

zone(0): 8192 pages.

zone(1): 0 pages.

zone(2): 0 pages.

Kernel command line: root=/dev/mtdblock2 noinitrd console=ttyS0,115200

CPU: BCMb83a rev 0 at 300 MHz

Calibrating delay loop... 149.91 BogoMIPS

Memory: 30480k/32768k available (1440k kernel code, 2288k reserved, 112k data, 60k init, 0k highmem)

Dentry cache hash table entries: 4096 (order: 3, 32768 bytes)

Inode cache hash table entries: 2048 (order: 2, 16384 bytes)

Mount-cache hash table entries: 512 (order: 0, 4096 bytes)

Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)

Page-cache hash table entries: 8192 (order: 3, 32768 bytes)

Checking for 'wait' instruction...  unavailable.

POSIX conformance testing by UNIFIX

PCI: no core

PCI: Fixing up bus 0

Linux NET4.0 for Linux 2.4

Based upon Swansea University Computer Society NET3.039

Initializing RT netlink socket

Starting kswapd

devfs: v1.12c (20020818) Richard Gooch (rgooch@atnf.csiro.au)

devfs: boot_options: 0x1

Squashfs 2.2-r2 (released 2005/09/08) (C) 2002-2005 Phillip Lougher

Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI enabled

ttyS00 at 0xb8000300 (irq = 8) is a 16550A

PPP generic driver version 2.4.2

pflash: found no supported devices

sflash: squashfs filesystem found at block 771

Creating 10 MTD partitions on "sflash":

0x00000000-0x00040000 : "boot"

0x00040000-0x00390000 : "linux"

0x000c0e78-0x00390000 : "rootfs"

0x00390000-0x003a0000 : "ML1"

0x003a0000-0x003b0000 : "ML2"

0x003b0000-0x003c0000 : "T_Meter1"

0x003c0000-0x003d0000 : "T_Meter2"

0x003d0000-0x003e0000 : "POT"

0x003e0000-0x003f0000 : "board_data"

0x003f0000-0x00400000 : "nvram"

NET4: Linux TCP/IP 1.0 for NET4.0

IP Protocols: ICMP, UDP, TCP, IGMP

IP: routing cache hash table of 512 buckets, 4Kbytes

TCP: Hash tables configured (established 2048 bind 4096)

Linux IP multicast router 0.06 plus PIM-SM

NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.

NET4: Ethernet Bridge 008 for NET4.0

802.1Q VLAN Support v1.7 Ben Greear <greearb@candelatech.com>

All bugs added by David S. Miller <davem@redhat.com>

VFS: Mounted root (squashfs filesystem) readonly.

Mounted devfs on /dev

Freeing unused kernel memory: 60k freed

Reading board data...
WSC UUID: 0x399a5ebf55e1b4f334d17b8584f95aee
convert_wlan_params_for_bssid: configure BSSID 2
convert_wlan_params_for_bssid: configure BSSID 3
convert_wlan_params_for_bssid: configure BSSID 4
Algorithmics/MIPS FPU Emulator v1.5

Using /lib/modules/2.4.20/kernel/drivers/net/emf/emf.o
Using /lib/modules/2.4.20/kernel/drivers/net/igs/igs.o
Using /lib/modules/2.4.20/kernel/drivers/net/et/et.o
Using /lib/modules/2.4.20/kernel/drivers/net/wl/wl.o
Hit enter to continue...WARNING: console log level set to 1
killall: upnp: no process killed
killall: wps_monitor: no process killed
killall: wps_ap: no process killed
killall: wps_enr: no process killed
Reading board data...
WSC UUID: 0x399a5ebf55e1b4f334d17b8584f95aee
Using /lib/modules/2.4.20/kernel/net/ipv4/acos_nat/acos_nat.o
info, udhcp server (v0.9.8) started
error, unable to parse 'option wins '
error, unable to parse 'option domain '
the file size is 4294967295
POT integrity check OK.
POT time is up.
IOCTL_AG_REGION_SET: English

add route eth0 0.0.0.0 mask 0.0.0.0 gw 209.125.235.1 metric 0
agApi_natAddConnTblEntryadd Conn : [100007F:280A -->100007F:4]
agApi_natAddConnTblEntryadd Conn : [1501A8C0:BEE2 -->101A8C0:8813]
agApi_natAddConnTblEntryadd Conn : [100007F:4 -->100007F:280A]

NAT Enabled

Info: No FWPT default policies.
Using /lib/modules/2.4.20/kernel/net/ipv4/l7_filter/l7_filter.o
Hit enter to continue...agnat QOS enable!

Using /lib/modules/2.4.20/kernel/net/ipv4/multissidcontrol/MultiSsidControl.o
darth_tater
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Joined: 11 Nov 2007
Posts: 55

PostPosted: Tue May 25, 2010 2:11    Post subject: Reply with quote
At this point, the router has booted up and is working perfectly.

if you hit enter, you can enter a shell, the output of which will be posted in just a second.

Seriously.. I have a terminal with root access.

What commands do you need me to execute?

What information do you need in order to get DDWRT working on this thing?
Eko
DD-WRT Developer/Maintainer


Joined: 07 Jun 2006
Posts: 5772

PostPosted: Tue May 25, 2010 4:09    Post subject: Reply with quote
If you press TAB twice, it will list you all commands. See if there is command like "outputimage" or something like that (backupimage, backupflash..., I can't remember now...) - then set tftpd client/server on your pc and use this command to get image of flash. You should get file of exactly 4MB.

If you can get it and send it to me, I will have support really soon.

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darth_tater
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Posts: 55

PostPosted: Tue May 25, 2010 4:54    Post subject: Wow! Reply with quote
ok. you don't even want to know how hard i tried to get that image.

i tired everything i could think of.

Oh well, Eko. check your PM inbox.

Image and a serial log of the damn thing booting up are attached.

And thanks =D
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