Posted: Tue Jan 19, 2010 8:37 Post subject: IMPULSE DRIVE on my wrt54gs v1 (usb mod)
wrt-54gs v1 (wrt-54g v2) usb mod memo:
-usb pinout: rh19 usb1_dp, rh20 usb1_dn, rh21 usb2_dp, rh22 usb2_dn
(These four "rh" resistors are connected from ground to usb signal lines)
-according to the usb 1.1 specification 15k ohm should be placed between signal lines and ground.
so the orignal "472" resistors( all four of them) should be replaced with 15k ohm resistors.
-ESD protection diode and 22 ohm series resistors should be used(they are optional, but i have used them anyway)
-wrt54gs v1 (wrt54g v2) supports 5v power, I used a high quality 5v 2a one.
so happy right now
Code:
hub.c: new USB device 00:04.0-1, assigned address 6
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 6
SCSI device sdb: 15663104 512-byte hdwr sectors (8020 MB)
sdb: Write Protect is off
/dev/scsi/host1/bus0/target0/lun0: p1
hub.c: new USB device 00:04.0-2, assigned address 7
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 7
SCSI device sda: 15663104 512-byte hdwr sectors (8020 MB)
sda: Write Protect is off
/dev/scsi/host0/bus0/target0/lun0: p1
Code:
root@DD-WRT:~# ls -R /dev/scsi
/dev/scsi:
host0 host1
/dev/scsi/host0:
bus0
/dev/scsi/host0/bus0:
target0
/dev/scsi/host0/bus0/target0:
lun0
/dev/scsi/host0/bus0/target0/lun0:
disc part1
/dev/scsi/host1:
bus0
/dev/scsi/host1/bus0:
target0
/dev/scsi/host1/bus0/target0:
lun0
/dev/scsi/host1/bus0/target0/lun0:
disc part1
------------------------
update:
I only have the info for these ICs:
PBGA package: bcm4702, bcm4704, bcm4712,bcm5350, bcm5352
(bga package with green PCB broader)
and bcm5354
see my replies of this post for more info
Last edited by zerx on Fri Dec 31, 2010 8:20; edited 5 times in total
Is it working flawelessly? And how did you integrate USB Drivers? Through optware?
How much GB can it handle, and will this Mod work with a WRT54GS v1.1 ? I have modded my router with an SD-Card slot, will it go side by side with this USB mod?
THanks in advance.
Ron _________________ WRT54GS v1.1 with TOMTAO & SD-Card Mod
WNDR3700 with stock Netgear FW-V1.0.4.55
it is running
DD-WRT v24-sp2 (11/02/09) mega - build 13064M VINT Eko
which supports usb by default and should not have any size limit
The layout of WRT54GS v1.1 is different, so the usb pinout I post cannot be applied to your router
However, all bcm4712 have an usb ohci controller integrated inside.
So if you can get the correct pinout of this IC, it is still possible to insert a very thin wire between the PCB and the BGA package to carry out the usb signal.
1. gently scratch off the green coating of bcm5352 as showed above
2.get a usb socket and solder the "dp" and "dn" to the pins you've scratched (didn't show which one is which so just guess, and reverse the connection if your router could not find the usb flash drive )
3.use a 5v/(2a or more) power supply for your router, solder the 5v and ground on the usb socket to the power input of you router
4.connect those resistors as I instruct earlier (optional)
Posted: Fri Feb 19, 2010 19:17 Post subject: THANKS!!!
zerx, you must be chinese in order to registrate and get those pics in that forum. I managed to get them and must say its quite incredible after a long waiting.
I wanted to know if there is another resistor to pull up/down in order to activate both USB ports called "USB_CNTRL" or the only thing i need is to solder a USB socket, install necessary modules and that´s all.
Well thanks in advance and let me know if you have BCM5352 KFB the smaller one or BCM5354 USB pinouts. Greetings
Zerx, thanksfor the pics, and I mean BCM5352 which package it the same as BCM5354, a smaller BGA (20x20 pins) that has no green borders, like the one present in WRT54G V6.
Thanks in advance!!!!
You are the man