Date: Mon, 10 Jan 2005 10:34:56 -0600 (GMT+6) From: john <[EMAIL PROTECTED]> Subject: Re: USB, EPRs and IDE (was Re: [LIB] slow)
On Sun, 9 Jan 2005, Raymond wrote:
Date: Mon, 10 Jan 2005 10:13:37 +0800 From: Raymond <[EMAIL PROTECTED]> Subject: USB, EPRs and IDE (was Re: [LIB] slow)
<snip> <snip> : > >>> I got no USB on my Lib (no EPR, no USB card either). > >> > >> On both the 100 and 110 1.1 usb is native. you just need to plug in a > >> connector to the docking port plug. > > > > I got no docking station, just the port replicator :-( > > > you don't need the dock. if you check the 100 maintence manual it shows > the pinout for the usb. you just need to connect to those four pins and > you have it.
Sure, but how? in practice? Wasn't there supposed to be an extra chip in the dock to add the full USB capacity? And isn't there any buffering needed on the EPR/dock connector? I remember some discussion on this in the list a year or so ago.
IIRC there is a USB line driver in the EPR ... just like there are RS-232 signals going across the docking connector but they're not at RS-232 signal levels. There is actually quite a large chip (an entire Southbridge perhaps?) sitting in the EPR. In fact I was quite surprised that there were USB signals going across the docking connector in the first place - perhaps at one point they were thinking of adding USB support to the small (largely passive) docking bar but gave up at the last moment?
hi raymond
there is no buffering so for a complete setup a person would want that but as near as I can tell it works.
And.... all operating systems I've installed on my Lib (with just an EPR) never ever detected any USB. If only a connector would be lacking, I'd think at least some USB components would have been detected.
Ya ... the components ARE there but I'm of the impression that they're turned off when there is no EPR connected (because "normally" there would be no point in turning them on without the EPR). It's also why you don't get USB components (or that second set of PCMCIA ports for that matter - with the EPR you get 4 type I/II slots or 3 type III) detected if the EPR isn't powered (even though the monitor port and, IIRC, serial, parallel and PS/2 ports still work). The only things that the Libretto would detect "naked" would be that which was on the docking bar (and THAT would probably be because the OS isn't supposed to "know" if the docking bar was connected or not).
.....<long snip>
:
> > - max 2 MB video memory and max 64 MB RAM apparently were quite
> > reasonable in 1998, but a stupid 16-bit ISA bus for IDE while PCI was
> > firmly established in 1997 or so, polled IRQ for the PCMCIA slots, buggy
> > ACPI and buggy BIOS int13 extensions are simply technical deficits.
> >
>
> true..however::::)))there once again is the dock. It has a connection on
> the pci buss. Now an ingenous person could do a little rigging and provide
> a pci IDE hard drive port::::::::))))). the ram can be upgraded although
> edo is pretty much finished buthere is still some availible in sticks and
> such. a lot of old equipment still uses it.
That would be a very clever trick...... Time for everyone to try to get a docking station? Although lugging that around is a bit of a hassle....
Would a CardBus IDE card do the trick? Or even a CardBus USB2.0 card connected to a USB2.0 to IDE adapter? Or a CardBus Firewire card connected to a Firewire to IDE adapter? My combo USB2.0/FireWire CardBus card blew up a while ago (I'm expecting a new one in the post soon) but IIRC the speeds I got connecting to my USB2.0/FireWire 3.5" IDE HDD case (using only one interface at a time of course!) were pretty decent (and faster than the internal drive) ...
If a person wanted to add or use up one of the cardbus -- yes. I just thought of the dock because I don't have one and that port is just sitting there waiting to be used!! The cardbus controller supports up to eight slots (according to my software so yes. Basically its a straight connection to the pci aslo so you would the operating system to see the controller and disable the onboard ide controller to use pci. I'm going to do something though because built-in ide is too slow -- max speeds I'm getting are only 4MB/s. I figure if I'm going to crack the case to add dma anyway might as well do it right and go pci.
As for RAM, I think that's been gone through before ... all I can say is ... I wish you luck! :-)
yeah -- funny thing is nobody has reported doing it in spite of the fact it works. I haven't done it because all the edo I've found has been way too expensive -- haven't been able to find anything for under about 300. I'll let the list know once I have it installed.
john
- Raymond
P.S. yes I AM still here, just snowed under somewhat more than usual ... hehe ...
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