Joined: 06 Jun 2006 Posts: 7492 Location: Dresden, Germany
Posted: Wed Oct 28, 2009 23:59 Post subject:
could someone post the fcc id or high resolution pcb pictures? i have a WRT54G2 with atheros chipset but 4 mb flash and 16 mb ram. i can also port a 2 mb flash device if it has 16 mb ram. _________________ "So you tried to use the computer and it started smoking? Sounds like a Mac to me.." - Louis Rossmann https://www.youtube.com/watch?v=eL_5YDRWqGE&t=60s
Joined: 26 Jan 2008 Posts: 13049 Location: Behind The Reset Button
Posted: Thu Oct 29, 2009 0:09 Post subject:
BrainSlayer wrote:
could someone post the fcc id or high resolution pcb pictures? i have a WRT54G2 with atheros chipset but 4 mb flash and 16 mb ram. i can also port a 2 mb flash device if it has 16 mb ram.
Looks like a serial flash chip like the 320. Can't make out the chip numbers from the fcc pics. A 1.5 owner needs to take some better pics. _________________ [Moderator Deleted]
I cracked open a V1.5 unit and the contents are:
Atheros AR7240-AH1E E47132 1B 0910 Taiwan
Winbond W9412G61H-5 0924H 69103P50001
There are two header traces one:
J8 14 pins and a square (presumably pin 1)
J5 is just below J8 5 pins again with a Square trace
around a via (presumably pin1) this goes to the Atheros chip according to the traces that I can see.
Hope this info helps the effort. I took some pics too. I will try to upload those shortly. :D
If someone can direct me on the Jtag connections (if it is one) I will be happy to get a dump or whatnot.
I have a parallel jtag cable that I cobbled together that worked for the older 54g units.
Joined: 13 Nov 2009 Posts: 3 Location: Planet Earth
Posted: Fri Nov 13, 2009 20:09 Post subject: JTAG on a WRT54G2 V1 unit
tester272001 wrote:
If someone can direct me on the Jtag connections (if it is one) I will be happy to get a dump or whatnot.
I have a parallel jtag cable that I cobbled together that worked for the older 54g units.
This page might be of help in finding the JTAG port. Looks like a little soldering is required; only the pads (no header) are on the logic board as it ships from the factory. While the photo is of a rev 1 Broadcom logic board, it’ll give you an idea of what to look for, and may still be in about the same place on the rev 1.5 logic board.
[Note: the JTAG connector is on the edge of the board; the 5-pin connector to its left is a serial port.]
Joined: 26 Jan 2008 Posts: 13049 Location: Behind The Reset Button
Posted: Fri Nov 13, 2009 20:27 Post subject:
tester272001 wrote:
If someone can direct me on the Jtag connections (if it is one) I will be happy to get a dump or whatnot.
I have a parallel jtag cable that I cobbled together that worked for the older 54g units.
Still would like some good pics of the board showing the numbers of the flash chip (serial)
the jtag header is the 14 pin header (2 x 7) left hand side of the board, near the middle, not the edge. The serial connection is the 5 pin header under that. _________________ [Moderator Deleted]
Joined: 13 Nov 2009 Posts: 3 Location: Planet Earth
Posted: Sat Nov 14, 2009 0:59 Post subject:
I have a rev 1, so unable to provide any high res photos of the chips; others will have to do that.
tester272001 wrote:
If someone can direct me on the Jtag connections (if it is one) I will be happy to get a dump or whatnot.
I have a parallel jtag cable that I cobbled together that worked for the older 54g units.
They moved the JTAG & Serial port pads on this rev., as barryware notes. Here is a v1.5 logic board photo showing the JTAG & Serial port pads:
WRT54G2 v1.5 logic board.jpeg
Description:
V1.5 logic board with JTAG & Serial Port pads highlighted; some assembly required!
First off, Brainslayer, you're awesome. Second, I picked up a v1.5 router for Christmas and snapped a bunch of hi-res pics of the board and WiFi. This seems to be the most dominant reversion board selling at major retail chains, atm. From what I can ascertain, the chips are idenified as follows:
Atheros AR7240-AH1E 400Mhz cpu
Atheros AR9285-AL1E WiFi controller
16MB Winbond W9412G6IH-5H DDR ram
2MB Winbond 25Q16BVSIG flash (next to JTAG)
Let me know if you need any more/better pics of this board, it would be really nice to have DD-WRT on it. I also have a JTAG cable (DLC5) if you need a dump of anything, just need to know what the pinouts are on the board.
Brainslayer has said that there will not be any dd-wrt for the v1.5 - he needs at least 4MB flash memory for an Atheros build. _________________ Kernel panic: Aiee, killing interrupt handler!
could someone post the fcc id or high resolution pcb pictures? i have a WRT54G2 with atheros chipset but 4 mb flash and 16 mb ram. i can also port a 2 mb flash device if it has 16 mb ram.
Maybe he can, don't know about it.
I've got a WRT54G2 v1.5 too, but haven't a good camera (yet).
-- Europe (German) version here.
Greetings