8 Dec
8 Dec
11:19 p.m.
Does such a thing exist? I know, I'm a masochist.
I would wonder if the bus could handle the bandwidth needed.
--
------------------------------------ personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com
-- Light is faster than sound. Some folks look bright until you hear them speak.
11:38 p.m.
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Cameron Kaiser
Sent: December 8, 2009 10:20 PM
To: cctalk at classiccmp.org
Subject: Re: isa usb card
Does such a thing exist? I know, I'm a masochist.
I would wonder if the bus could handle the bandwidth needed.
I've heard they exist, but I tried to find one for my 486 for a couple of
years without success.
If you find one... try to find a second and I'm in. :)
Jim
11:47 p.m.
Here is an ISA USB card...
http://www.simtec.co.uk/products/EB1161ISA/
Curt
Jim MacKenzie wrote:
-----Original Message-----
From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org]
On Behalf Of Cameron Kaiser
Sent: December 8, 2009 10:20 PM
To: cctalk at classiccmp.org
Subject: Re: isa usb card
Does such a thing exist? I know, I'm a
masochist.
I would wonder if the bus could handle the bandwidth needed.
I've heard they exist, but I tried to find one for my 486 for a couple of
years without success.
If you find one... try to find a second and I'm in. :)
Jim
9 Dec
9 Dec
12:29 a.m.
On 8 Dec 2009 at 23:46, Curt @ Atari Museum wrote:
There is a USB interface for the Atari 8bit computers,
so no reason a
lowly PC couldn't have one too ;-)
USB 1.1 of course...
My thought was to look around for a PC104-interface card if an ISA
one couldn't be found. One could conceivably build a card with its
own microcontroller and UHCI and local RAM. Then even USB 2.0
wouldn't be a problem on a PC XT, assuming that you could find the
appropriate drivers.
--Chuck
3:48 a.m.
Chuck Guzis wrote:
On 8 Dec 2009 at 23:46, Curt @ Atari Museum wrote:
My thought was to look around for a PC104-interface card if an ISA
one couldn't be found. One could conceivably build a card with its
own microcontroller and UHCI and local RAM. Then even USB 2.0
wouldn't be a problem on a PC XT, assuming that you could find the
appropriate drivers.
The FTDI vinculum would be suitable for this, that's what the DataCentre
for the BBC micro uses, to allow it to read disk image files off a USB
stick.
The good thing about the Vinculum, and some of FTDI's other USB
interface chips, is that to the host computer they just present an 8 bit
interface, so talking to them is essentialy a matter of an address
decoder and writing the apropreate drivers.
Cheers,
Phill.
9:49 a.m.
Cameron Kaiser wrote:
I know for a fact that there once was made a USB interface for
non-Cardbus PCMCIA, because I have one. I would assume this card would
Just Work(tm) in an ISA->PCMCIA adapter.
Peace... Sridhar
Does such a
thing exist? I know, I'm a masochist.
I would wonder if the bus could handle the bandwidth needed.
10:56 a.m.
Does such a thing exist? I know, I'm a masochist.
I would wonder if the bus could handle the bandwidth needed. 
11:02 a.m.
On Wed, Dec 9, 2009 at 6:49 AM, Sridhar Ayengar <ploopster at gmail.com> wrote:
Cameron Kaiser wrote:
I know for a fact that there once was made a USB interface for non-Cardbus
PCMCIA, because I have one. ?I would assume this card would Just Work(tm) in
an ISA->PCMCIA adapter.
Peace... ?Sridhar
Standard UHCI, OHCI, or EHCI host controllers can not be placed
directly on an ISA or PCMCIA bus as by definition they are PCI
busmaster devices. Several years ago I talked to one company that was
going to try to put an OHCI host controller in a PCMCIA card by
attaching it to some interface glue logic and local RAM to operate
with for it's busmaster activity. From a software point of view the
result would be different enough from the standard PCI based OHCI
interface that the standard Windows OHCI driver could never support it
and I don't think they ever produced a real product. Such a product
would require non-standard device specific drivers, which you have
have to find for whatever OS you were trying to use with the
controller.
It would be easier to interface an embedded device type of USB host
controller such as the ISP1161 to an ISA or PCMCIA bus, but then you
would still have to find device specific drivers for whatever OS you
were trying to use with the controller. That link for the EB1161ISA
ISP1161 ISA board says "This is a legacy product that has not been
manufactured for an extended period of time."
Does such a thing exist? ?I know, I'm a masochist.
I would wonder if the bus could handle the bandwidth needed. 
11:08 p.m.
Cypress makes an embedded host:
http://www.cypress.com/?mpn=SL811HST-AXC
They used to supply it in a 28pin PLCC package, but I think that one has
been discontinued... But it is still in production, it is a 3.3V part, but
it is 5V compatible. So this chip, in combination with a USB power switch
(Maxim and TI sell them - amongst others) allows a single USB 1.1 port on
the machine. But nothing is there to prevent you to put multiple chips on
the board, or a USB hub... (but 1.1 chips are getting harder and harder to
obtain)
NXP used to have ISP1362 and ISP1761 - they sold them to ST-Ericsson
http://www.ebv.com/en/products/categories/details/product/isp1362.html
But I don't think there is really an ISA usb card available... But then
designing an isa card is not too hard...
Maurice
It would be easier to interface an embedded device type of USB host
controller such as the ISP1161 to an ISA or PCMCIA
bus, but then you
would still have to find device specific drivers for whatever OS you
were trying to use with the controller. That link for the EB1161ISA
ISP1161 ISA board says "This is a legacy product that has not been
manufactured for an extended period of time."
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-
afra＠aurigae.demon.co.uk -
brianlanning＠gmail.com -
cclist＠sydex.com -
curt＠atarimuseum.com -
glen.slick＠gmail.com -
jim＠photojim.ca -
maurice.smulders＠gmail.com -
ploopster＠gmail.com -
spectre＠floodgap.com