Date: Tue, 14 Mar 2006 13:52:39 -0800 From: <[EMAIL PROTECTED]> Subject: RE: USB [WAS:Re: [LIB] Libretto 100CT at 300Mhz?!?!?!]
I am not sure, but pin 68 (page 210 of the manual), shows DOCDET - which I interpret as Dock Detect. It should be a simple matter of monitoring what this pin does with and without the Libby connected to the docking station. The other issue Ray and others were concerned with was a special hardware chip inside the docking station that actually provided the proper USB signals. I could not determine if this was true or not from the docking station itself, and no one has been able to produce a schematic for either the Libretto or the docking station. The "Chiba3..." website listed below with its instructions indicates that ff1100V Libretto can have the USB added to it. Based on that, and the signals in the manual, I concluded it was possible the L100 may also be able to have a USB port on it (with the possible requirement of having the "DOCDET" signal forced to the correct level). It should be possible (with younger hands and eyes than I have) to solder wires to the small Port Replicator pins (as opposed to the docking station) and test this out before modifying the Libretto. It will either work or not, then we will know for sure. Dick -----Original Message----- From: Philip Nienhuis [mailto:[EMAIL PROTECTED] Sent: Tuesday, March 14, 2006 3:05 PM To: Libretto Subject: USB [WAS:Re: [LIB] Libretto 100CT at 300Mhz?!?!?!] Date: Tue, 14 Mar 2006 20:02:45 +0100 From: Philip Nienhuis <[EMAIL PROTECTED]> Subject: USB [WAS:Re: [LIB] Libretto 100CT at 300Mhz?!?!?!] [EMAIL PROTECTED] wrote: > Date: Tue, 14 Mar 2006 07:50:34 -0800 > From: <[EMAIL PROTECTED]> > Subject: RE: [LIB] Libretto 100CT at 300Mhz?!?!?! > > Jose, this has been done and well documented. > See this site: > > http://www.fixup.net/tips/l100266.htm > > Also, if you are going to do this, here is something else you may consider: > > I don't know if anyone else saw this link from Vitaly, > http://chiba3.dip.jp/notepc/ss1000.html > But if you look at it you will see instructions for adding a USB port to the Libretto ff1100V computer. Looking very carefully at it and comparing the signals on the Port Replicator connector on the Lib L100 /L110 CT Notebooks, it would appear you could do the same thing to these. From the Libretto manual, page 211, Table C-2 Docking Interface connector pin assignments (140-pin)(3/3), pin 93 is "USBDP", or USB Data positive; and pin 94 is "USBDN", or USB Data Negative. By finding a suitable +5V and Gnd point, these are the 4 signals needed for the USB port. This has been discussed before, by - a.o.- John M, Raybot and me. Problem is how to get the USB controller to work at all. It appears to be switched off if no EPR is attached. I guessed that perhaps some connectors on the port replicator connector might need to be connected, or one of those pins may need to be pulled "up" or "down" to signal the USB controller to initialize. Although I do not use my L110 that much nowadays (it's just a back-up machine now, I got a JVC 741 for on the road) I'd be very interested if only for the fun of trying to get USB to work. Philip
