Re: a USB for the Apple II smoke test

[Jeff Blakeney <CUTjblakeney@sympatico.ca>]

On Thu, 28 Jul 2005 20:23:17 GMT, "Sean Fahey" <a2fan@hotmail.com>
wrote:

>"Michael J. Mahon" <mjmahon@aol.com> wrote in message
>K_SdnZmLEtPVgnTfRVn-og@comcast.com">news:K_SdnZmLEtPVgnTfRVn-og@comcast.com...
>
>> The fact that it delivered power without burning anything
>> out is miracle enough.  That it pulsed a data line randomly
>> to produce the illusion of data is just luck.
>
>Exactly. I'm not aware of any serial mouse support in GS/OS either but, then
>again, I'm not an expert on it's innermost, undocumented workings.

I think the big thing everyone is missing is that USB is way too fast
for a SSC.  The reason the computer hung when a USB mouse was hooked
up could have been due to interrupts being enabled on the SSC and so
the SSC kept sending interrupts to the processor so fast that nothing
else could happen.

Then there is the fact that the SSC ROM has nothing in it to make it
act like any of the mouse interfaces that exist so there would be no
driver support in GS/OS for a mouse hooked up to a SSC.  The bitMouse
card that was mentioned, even though it uses serial mice from the PC,
makes itself look like an Apple mouse interface so that software for
both the 8 bit and 16 bit Apple II's could use it without needing
special versions or drivers written to support it.

-- 
 Jeff Blakeney - Dean of the Apple II University in the
                 Apple II Community on Syndicomm.com
 CUT the obvious from my address if you want to e-mail me