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Re: Trying to run SD for EII on a New MacBook Pro 17" 2.4 ghz

2010-03-23 by Dana Fiorucci

I had at one time a Stealth G-Port adapter running from a dual 1.25  
but was unable to get it to work but that was in OS 9.22
In theory it may work in OS 8.6.
Too bad someone can't make a USB to RS-422 adapter that would be  
compatible.

Visit Dana's Synth Site
http://members.cox.net/synths/


> I realize this is an old message, but I felt it was necessary to  
> provide some info here for archival purposes.
>
> I remember trying to get that Keyspan USA-28 adapter to work with a  
> MOTU MIDI Express for Macintosh, on a Blue & White G3, running Mac  
> OS 8.6. It would not work because the adapter could not provide as  
> high as a 1MHz signal to the MIDI interface. It did, however, work  
> with a 56K modem that needed a lot less than 1Mhz.
>
> According to what I've read in the RS-422 spec PDF provided on this  
> board, the Emulator needs a 500kBaud signal from the Mac. If my  
> understanding is correct, this is above what the Keyspan USA-28 can  
> provide, and thus it will not work for Emulator II to Mac purposes.
>
> For the record, in my case, what did work for the MIDI Express was  
> a special Geoport adapter that could be installed in the Internal  
> Modem slot on the Blue & White G3. The "Yosemite" Blue & White G3,  
> and the "Yikes" G4 are the only two machines that accept this  
> adapter, and thus are the two most modern Macs that I am aware of  
> that in theory can communicate directly with the Emulator II.
>
> I will test this to confirm.
>
> --- In emulatorII-list@yahoogroups.com, "djfiorucci"  
> <dfiorucci@...> wrote:
> >
> > Leave it to me to get a brand new computer and try to make it work
> > with one of the oldest pieces of gear in my studio.
> >
> > Anyway here is the little project I'm working on at this point.
> >
> > I've setup Basilisk II on my new MacBook Pro with OS 7.1.
> > For those of you who don't know Basilisk II is a old mac emulator.
> > Yep I'm booting the same image that I have on a Mac SE/30 and a  
> Mac LCIII.
> >
> > I've added a Keyspan Twin Serial adapter in hopes to communicate  
> with
> > the Emulator II thru Basilisk II window.
> >
> > Okay here is where I think I'm not getting communication.
> > Since the driver for the Keyspan is running in OSX I don't think the
> > OS 7.1 system sees it.
> > (By the way other than not seeing the connection port SD for EII is
> > running great inside Basilisk II.)
> > Does anyone know what OS will still run SD for EII but also address
> > USB ports?
> > 8.0 to 8.6?
> >
> > I can setup Basilisk to run all the way up to OS 8.6 I think.
> >
> > Another thought if there was a driver that could be added to 7.1
> > system folder to enable it to use the USB ports via the Keyspan  
> adapter.
> >
> > This would be so cool to be able to run SD for EII from my new  
> MacBook
> > Pro.
> >

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