GUS Daily Digest            Sat, 26 Nov 94  9:37 PST     Volume 16: Issue  26 

Today's Topics:
						 GUS and Magic Carpet
					 GUS MAX Memory upgrade in UK
							GUS MAX output
							GUS SCSI-2 db?
							 Magic Carpet
								mitsmi
						   Mitsumi 2x CDROM
							Mitusumi & GUS

Standard Info:
	- Meta-info about the GUS can be found at the end of the Digest.
	- Before you ask a question, please READ THE FAQ.

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Date: 25 Nov 94 00:00:00 GMT
From: Rincewind@salem.heide.de (Michel Mohrmann)
Subject: GUS and Magic Carpet

Hi,

has anybody gotten "Magic Carpet" to run with the GUS ?!?!?!?
how ?!?!?

 Michel Mohrmann

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Date: Sat, 26 Nov 1994 10:40:54 GMT
From: Mike@sindev.demon.co.uk (Mike Watson)
Subject: GUS MAX Memory upgrade in UK

In message <199411251846.KAA05818@gaia.ucs.orst.edu> GUS Server writes:

> Title says it all - anyone know of a *reasonable* price in the UK, where I
> can upgrade my GUS MAX to the full 1 Meg? Anything under 30 quid sounds
> reasonable to me for 512k...
Try not to pay any dosh at all! I stole my ram from an old trident vga card.
This was on a normal GUS , dunno if the MAX uses the same chips. Worth 
checking out though!

-- 
Mike Watson, Sinister Developments, Edinburgh, Scotland 

"I'm not Calvin. I'm duplicate number two." - Calvin and Hobbes

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Date: Fri, 25 Nov 1994 10:29:21 -0800 (PST)
From: Emory Menefee <em@crl.com>
Subject: GUS MAX output

Most discussion of MAX 16 bit quality has referred to recording.  Is there
a major improvement in output quality when playing MIDI or MOD files (for
example)?  If an answer has been posted before, I apologize for having
missed it. I have been waffling about upgrading, and time is running out. 

Thanks,  Emory Menefee

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Date: Fri, 25 Nov 1994 13:03:51 -0600 (CST)
From: "Mark T. Heintz" <mheintz@csd.uwm.edu>
Subject: GUS SCSI-2 db?

Is there a SCSI or SCSI-2 daughterboard for the Ultrasound?  I'd like to 
connect a CD-ROM drive direct to my Ultrasound, but I don't want to be 
restricted to buying a Panasonic, Sony, or Mitsumi...  I remember at one 
time (quite a while ago) hearing about a SCSI db in development, but I 
could never find updated info...  Can anybody fill me in?  I'd hate to 
take up another slot for a scsi board...

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Date: Fri, 25 Nov 1994 16:28:21 GMT
From: Mike Watson <Mike@sindev.demon.co.uk>
Subject: Magic Carpet

Just got it today and it's ace! 

One problem though....the Gus support that was in the demo seems to have
vanished in the full version. I for one am pissed off.

I am lucky though in that I have an old soundblaster card for emergencies. So
I haven't tested it with SBOS yet.

-- 
Mike Watson, Sinister Developments, Edinburgh, Scotland 

"Nothing helps a bad mood like spreading it around." - Calvin and Hobbes

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Date: Fri, 25 Nov 1994 17:01:52 -0400 (EDT)
From: Harry C Pulley <hpulley@uoguelph.ca>
Subject: Re: mitsmi

 
> > Date: Thu, 24 Nov 1994 13:58:25 +0100 (MET)
> > From: Danny Greefhorst <dgreefho@cs.ruu.nl>
> > Subject: mitsumi
> > 
> > I have a Gravis Ultrasound 3.4 and a Mitsumi FX001D. Now my problem is that
> > I can't get my DS cdrom working at 300 kb/s, it only works at 150 kb/s. I
> > tried a different cdrom drive and it gives the same problem. Anyone knows
> > what to do?
> 
> There's something in the GUS manual about it not being able to support 
> DMA 5 for CDROM access.  DMA 5 is the DMA that the Mitsumi double-spin 
> drives use for their double speed access routines.  For this reason, the 
> GUS will only support the Mitsumi drives in single spin mode (150k data 
> xfer rate :+( ).  So, saddly, you can't do anything.  You'll have to get 
> a seperate interface card, or a Panasonic or Sony drive.

I don't know about a GUS 3.4 with CDROM daughtercard by my Mitsumi
double-spin drive works just fine with my GUS MAX.  I cannot use DMA but I
can use interrupt driven drivers to get 300K/sec. average and up to
1400K/sec. burst rates (with no himem.sys or emm386.exe loaded; with those
loaded the avg. rate stays the same but the burst rate goes down to
850K/sec.).  I actually prefer running my Mitsumi without DMA since I ran
into cycle stealing problems with UAKM and some Windows AVI files; the
sound would break up if the CDROM was on its own interface card using
16-bit DMA while the GUS was also using DMA and there was a lot of video
activity. 

So, it is hogwash that the Mitsumi uses DMA alone to get its double speed 
transfer rate.  It is a double-speed drive.  Even in polled mode I get 
275K/sec. average.

What benchmark is the original poster using to get the 150K/sec. figure?

Harry

<:-{}   hpulley@uoguelph.ca       |This message released|It takes all kinds,
 \      Harry C. Pulley, IV       |to the PUBLIC DOMAIN.|and to each his own.
 ---------------------------------+---------------------|This thought in mind,
Ultra-Violence with Ultrasound    |     Ultraverse      |I walk alone.

------------------------------

Date: Sat, 26 Nov 1994 12:35:10 +0000 (GMT)
From: A.M.Zanker@newcastle.ac.uk
Subject: Re: Mitsumi 2x CDROM

In a previous message, Aaron Cameron wrote:

> > Date: Thu, 24 Nov 1994 13:58:25 +0100 (MET)
> > From: Danny Greefhorst <dgreefho@cs.ruu.nl>
> > Subject: mitsumi
> > 
> > I have a Gravis Ultrasound 3.4 and a Mitsumi FX001D. Now my problem is that
> > I can't get my DS cdrom working at 300 kb/s, it only works at 150 kb/s. I
> > tried a different cdrom drive and it gives the same problem. Anyone knows
> > what to do?

> There's something in the GUS manual about it not being able to support 
> DMA 5 for CDROM access.  DMA 5 is the DMA that the Mitsumi double-spin 
> drives use for their double speed access routines.  For this reason, the 
> GUS will only support the Mitsumi drives in single spin mode (150k data 
> xfer rate :+( ).  So, saddly, you can't do anything.  You'll have to get 
> a seperate interface card, or a Panasonic or Sony drive.

This sounds like complete tosh to me. I'm not using DMA at all with my
Mitsumi FX001D (i.e I have /T:S on my driver line) and I'm getting about
310Kb/s throughput. Also, the OS/2 and Linux drivers do not use DMA 5
(or any other 16-bit DMA channel) and still produce a good 300Kb/s.
Maybe the GUS MAX doesn't work properly with the FX001D but I doubt
that it's anything to do with DMA 5 being needed for double-speed
routines.

Regards,

Mike
-- 
Mike Zanker                              | A.M.Zanker@ncl.ac.uk
Department of Mathematics and Statistics |
University of Newcastle upon Tyne, UK    | PGP public key available

------------------------------

Date: Sat, 26 Nov 1994 15:07:26 -1000 (GMT-10:00)
From: Paul Murgatroyd <s1114@kowande.Bond.edu.au>
Subject: Mitusumi & GUS

To those who were saying that because the GUS does not support DMA for 
the Mitsumi FX001D, that it will run in Single Spin mode only....I do not 
believe this is true. On the Mitsumi driver disk, there is two different 
versions of the driver. One for DMA, and one for Software mode. I am 
using the Software mode driver (mtmcdas.sys), and I appear to be having 
no problems at all. 

===============================================================================
Paul Murgatroyd                          E-Mail : s1114@kowande.Bond.edu.au
Unit 38                     : dreamer@rip.it.Bond.edu.au
Sailfish Cove                        
215 Cottesloe Drive          IRC    : MouseTrap
Mermaid Waters, 4218, AUSTRALIA          Phone  : +61-75-755-673  
 ------------------------------------------------------------------------------ 

------------------------------

Date: Sat, 26 Nov 1994 04:03:51 -0500 (EST)
From: YANI@rclvax.medcor.mcgill.ca



------------------------------

Date: Fri, 25 Nov 94 18:39:29 +0100
From: jpdgreve@vub.ac.be (De Greve Jean-Pierre)

Hi,

I own a logitech three-button mouse. Everything went ok till now, the mouse
seems to 'slow down' in DOS & WINDOWS, it slows down and then it stops working.
I still can use the program with my keyboard, but ...

What went before :

1] On a morning, I started my PC and got a 'CMOS checksum failure'.
   I switched everything off, and tried again, but no result.
   I decided to reconfigure everything from 0.

2] Everything was back ok. I downloaded the latest GUS SDK from garbo.uwasa.fi
   and played around in Turbo Pascal 7.0 with it.
   After that, I started windows, and played a bit with PowerChords.
   Suddenly, in the Rythm Editor, my mouse stopped in the middle of the screen,
   and it locked up. (the program still runned fine, though)
   I restarted my PC and everything got loaded. Started Windows, and then,
   the mouse (after playing around with it over the desktop to check if
   everything was ok) locked up again.

I know, this is not the LogiTech digest, but since the problem just happened
after the SDK & PowerChords, I think some people may have some information ?

Sincerely,

-  Jean-Pierre.

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| When privacy is outlawed, then only outlaws will have privacy.            |
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End of GUS Daily Digest V16 #26
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