[deleted by poster]
yes, it was my mistake.. there's no need for a clock generator at this point.Originally Posted by wtzm
I still think that a RLC circuit is needed...
we need to filter the signal... the router is a very noisy environement...
[ WL-500G | fw: 1.9.2.7-7f ]
[deleted by poster]
Last edited by gwl; 30-11-2005 at 23:27.
[ WL-500G | fw: 1.9.2.7-7f ]
wtzm, could you please correct the image a bit?Originally Posted by wtzm
I believe that USB2 pins should be interchanged ==>
In addition two 15 ohm serial resistors should be used. Then you can enjoy using the second USB port...Code:----- ____ USB1_N --I I--|GND \_ USB1_P --I I--| --- USB2_P --I I--| / USB2_N --I I--|_/ ----- RN28
....
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
usb-ohci.c: USB OHCI at membase 0xb8004000, IRQ 2
usb-ohci.c: usb-00:04.0, PCI device 14e4:4715
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
hub.c: new USB device 00:04.0-1, assigned address 2
hub.c: USB hub found
hub.c: 4 ports detected
lp0: using parport0 (polling).
usb.c: registered new driver usblp
printer.c: v0.13: USB Printer Device Class driver
Linux video capture interface: v1.00
hub.c: new USB device 00:04.0-2, assigned address 3
usb.c: USB device 3 (vend/prod 0xd7d/0x100) is not claimed by any active driver.
SCSI subsystem driver Revision: 1.00
Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage
scsi0 : SCSI emulation for USB Mass Storage devices
Vendor: Model: USB DISK Rev: 4.08
Type: Direct-Access ANSI SCSI revision: 02
Attached scsi removable disk sda at scsi0, channel 0, id 0, lun 0
SCSI device sda: 243712 512-byte hdwr sectors (125 MB)
sda: Write Protect is on
Partition check:
/dev/scsi/host0/bus0/target0/lun0: p1 p2
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 3
USB Mass Storage support registered.
[admin@(none) root]$
Gratulations, Technik!
I will try this and come back later with my results.
Well, it just works.
I relied on the series resistance of bad solder joints, so the 15 Ohm Resistors weren't necessary *g*. (BTW: I assume these are just there as a safeguard measure in case somebody connects a defective device)
My dmesg looks quite similar:
usb.c: registered new driver usbdevfs
usb.c: registered new driver hub
PCI: Setting latency timer of device 00:04.0 to 64
usb-ohci.c: USB OHCI at membase 0xb8004000, IRQ 2
usb-ohci.c: usb-00:04.0, PCI device 14e4:4715
usb.c: new USB bus registered, assigned bus number 1
hub.c: USB hub found
hub.c: 2 ports detected
usb.c: registered new driver speedtch
hub.c: new USB device 00:04.0-1, assigned address 2
hub.c: new USB device 00:04.0-2, assigned address 3
hub.c: USB hub found
hub.c: 4 ports detected
hub.c: new USB device 00:04.0-2.3, assigned address 4
usb.c: USB device 4 (vend/prod 0x1019/0xc55) is not claimed by any active driver.
SCSI subsystem driver Revision: 1.00
Initializing USB Mass Storage driver...
usb.c: registered new driver usb-storage
scsi0 : SCSI emulation for USB Mass Storage devices
Vendor: IC Model: USB Storage-CFC Rev: 301b
Type: Direct-Access ANSI SCSI revision: 02
WARNING: USB Mass Storage data integrity not assured
USB Mass Storage device found at 4
USB Mass Storage support registered.
I used the opportunity to measure the total current consumption in this configuration (speedtouch usb + bus powered hub + cardreader; wireless disabled): ~1.3A.
The maximum current consumption during startup, without any USB devices, all ethernet ports disconnected: 780mA and 715mA after startup (idle). The same configuration with one of the LAN ports connected: 835mA and 770mA.
The only thing missing at the moment is a way to (physically) mount another USB connector at the case; Maybe on the front, just above (left) of the PWR Led?
nice post Technik!
I've been so busy that I haven't has the time to check this out...
I remembered to check the forum today, and was glad to find that someone has a solution.
[Technik], please confirm that this is the correct shematic:
(usb pinout: http://www.interfacebus.com/Design_Connector_USB.html#b )Code:___ ____ o-|N1 |--|GND \_ USB2 R1 o-|P1 |--| __ pin3 --/\/\/--|P2 |--| / pin2 --/\/\/--|N2 |--|__/ R2 --- RN28 pin 1 -- +5v pin 4 -- gnd) (R1=R2=15ohm)
Also, did you use external 15ohm resistors, or did you "reuse" the free RN2 15 Ohm resistances on the board?
where did you get the +5v from? (which part of the pcb?)
I guess a capacitor next to the +5v input of pin1 would be a nice addon, don't you think?
regards,
Last edited by gwl; 01-12-2005 at 00:16.
[ WL-500G | fw: 1.9.2.7-7f ]
You can get power from the pins labeled CE2 (this capacitor is at least on my pcb not populated) next to the onboard USB connector.
Thanks!Originally Posted by gwl
I can confirm that your schematic diagram is OK.
As soldering on small onboard SMD parts is a bit difficult, I prefer using external resistors.
I am getting 5V from the input connector as marked, not directly but through additional reversible 0.7A fuse (PolySwitch).
In case you need a high power for external HDD, I would use some additional serial coils on both 5V and GND (taken from the power input connector) and ~1.2A fuse.
Hi.
I've been out for some time and only today I've had the time to check this fantastic discover .
As I have two USB disk's and with a USB hub I can't put them to work as I want this is the perfect soluction for my case but unfortunately I'm not a expert in electronics so, can someone post some more detailed info about this, with photos and all that so that I can also put a second USB port on my router?
Thanks,
Miguel
Please don't try to do it if the info above is not sufficient for you. Onboard parts that you need to solder on are quite small and without some experiences you may permanently damage the router. Also warranty is void as soon as you remove the warranty label covering one screw...Originally Posted by roque69
Thanks for the advice.Originally Posted by Technik
In fact I don't understand the info posted here maybe if it was in portuguese ... Now the solder and warranty are not a problem as I have a friend with solder experience and warranty was gone long time ago.
Miguel
OK then... So this is a (perhaps) more clear "how to".
Router board version needs to be 2.xx as older boards have a different layout.
Good luck!
Thanks for the answer. Yes this is a more clear "how to" .Originally Posted by Technik
Just one last question. In the resistors you mention 15 Ohm, the fuse of 1 amp but what about the coil (ferrite slug) resistance ?
Thanks,
Miguel
You can use almost any coil type, it's not a critical part - the reason is to eliminate interference. D.C. resistance of the coil should be max. 0.1 Ohm.Originally Posted by roque69
hi guys,
this is very cool, but, why not just plug an USB hub to the existent port??
it works perfectly.