err....wat is that cable?JTAG?

do not attempt this if u are rookie.

This post has been edited by soul2soul: May 18 2006, 01:35 AM

Just bought today WRT54G ver 5 from lowyat.net i hope the stable version DD-WRT for this version will come out soon. The router for my sister office

Well, my story was another case. My WRT54G v3.1 was striked by lightning and was sent for RMA. Now they replaced it with a v5. Sigh. Will the v5 need the JTAG cable forever ?

Flash Your Version 5 WRT54G
From WRT Wiki

As of April 3, 2006, there is a "Micro" version of DD-WRT that fits onto a version 5 of the WRT54G or WRT54GS. The process to get the firmware onto the version 5 is complicated, however. Mainly, it involves using a JTAG cable (http://en.wikipedia.org/wiki/JTAG). This linkmay (http://forums.hardwarezone.com/showthread.php?p=18118180#post18118180) provide some other helpful guidance on performing the procedure below.

The Micro version also works on routers with more than 2MB of flash space. It lacks some functionality of the Mini version (which also lacks some functionality of the full version.). Specifically it leaves out the following: chillispot, nocat, rflow, kaid, samba client, SNMP, IPv6, MMC/SD Card Support, SSH, PPTP/PPTP Client, UPnP and ? (please edit!)

Note: WRT54 v5 routers are officially supported by DD-WRT since v23 SP1 final. Flashing them is still not for the faint of heart, it is recommended that you get a router with more memory.

(Expanded directions based on instructions from Piotr Gozdur)

1. If you don't have both a JTAG cable and the most recent version (4.5) of the HairyDairyMaid's debricker tool (http://downloads.openwrt.org/utils/), STOP HERE!
2. Download the generic micro version of DD-WRT firmware (dd-wrt.v23_micro_generic.bin) from DD-WRT SP1 Beta Page (http://www.dd-wrt.com/dd-wrtv2/index.php?link=downloads). You should choose the most recent build.
3. Download the cfe.bin file from this directory (http://www.dd-wrt.com/dd-wrtv2/downloads/index.php?path=wrt54gv5+flashing/). If you are on linux rename CFE.bin to CFE.BIN.
4. Prepare your JTAG flashing environment.
Best practices:
1. unplug router between commands.
2. If you're using Linux, you'll probably need to be root to have rights to the parallel port.
3. Version 4.5 of HDM's debricker tool will auto-sense the flashchip. Explicit chip parameters like '/fc:01' are usually not necessary. If it does not auto-sense, triple-check the jtag connections before trying to force it!
4. If the debricker freezes at any point then exit the executable (ctrl-C), power cycle your router, and try again. If the debricker refuses to go past the "Enabling Memory Writes" then you may need to use the /noemw option.
5. Make a backup of your flash via JTAG with command 'wrt54g -backup:wholeflash'. This will take about 10 minutes.
6. Erase the flash (you did backup your :wholeflash, right?) with 'wrt54g -erase:wholeflash'. This will only take a minute.
7. Now your canvas is blank. From here on, you will need to append '/noreset' to your commands. It's time to flash the CFE.BIN you downloaded earlier (It's originally from a wap54g v3). Use the command 'wrt54g -flash:cfe /noreset'. This will also take about 10 minutes. Note that it is possible to flash the entire firmware to the flash using the debricker tool, but this will take a very long time (like 90 minutes). For this reason it is recommended to use the CFE.BIN then just tftp the whole image over after.
8. Ping 192.168.1.245 to make sure it's responding. If you have troubles you may need to force 10mb/half duplex connection. Either remember the location of the firmware, or copy it to 'c:\code.bin' for ease of use.
9. Upload example micro version of DD-WRT firmware via tftp using command. For example, under Windows use:
tftp -i 192.168.1.245 PUT {path to firmware file; example: c:\code.bin}
10. After uploading via TFTP, just WAIT! Keep waiting. After a few minutes it'll come around on its own if you've done it right. The lights will stop blinking and it'll respond to pings on 192.168.1.1.
11. If your newly flashed v5 router is working properly, you may want to correctly set your MAC addresses. Using a command line, enter 'nvram set et0macaddr=xx:xx:xx:xx:xx:xx' where xx is the MAC address printed on the bottom of your router. Follow that with the commands 'nvram commit' and 'reboot'.

WRT54GS user, reporting in!

So it is gonna need a JTAG cable to flash it even in the future ?

thats for WRT54G V5 only

Sigh. I guess I'm stucked with it already.

i changed to the SP1 final std

and i notice there is excessive? amount of error on wireless transmits while zero errors on receive.



is this normal?

anyone tried to flash the router for v5?
how much do u think the cable cost?

Malaysia...Im not too sure ,

JTAG Cable , check eBay...If anyone knows where to find this cable in Malaysia , please let us know

check Jalan Pasar then... heaven of electronic parts

Hmm.so no one manage to flash yet...i am wondering lowyat sold this type of cable.
My WRT54G hang most of the time when i downloang file using bit torrent

Finally I get to use back DD-WRT ! Just bought a WRT54GS today !

i heard that WRT54GS wouldn't work if u dont have Gigabit NIC
isit true?
i meant the SpeedBooster features...

The speedbooster requires you to have a wireless LAN card with SpeedBooster feature then only it will work.

if you have WRT54G ,[with DD-WRT] you can turn on SpeedBooster

On my iBook [with Apple Airport Extreme] card , speedbooster works very well..You could get around 64Mbps......You just need to turn on AfterBurner , thats it

for ver 5.x user who wanted to purchase JTAG please contact:

Kevin Quek (kq@testech-elect.com)
Malaysia Office (Puchong)
Call: 012-2036552

or u can make ur own JTAG here:
http://forums.hardwarezone.com/showthread.php?t=1265089

cheers!

but there's lotsa JTAG cable available... dunno which one to pick
http://wiki.openwrt.org/OpenWrtDocs/Troubl...3c0c4ea93ffbadd
http://wiki.openwrt.org/JTAG_Cables

as for the interested JTAG buyer, please let Mr. Kevin know by e-mail what type of JTAG u r using
thanks!