HDTenEightyP/NetNews huggingface dataset:
From: bo24+@andrew.cmu.edu (Berend Ozceri)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Info on Par port writes?
Date: 16 Oct 92 11:47:57 GMT
Article-I.D.: andrew.UerllhG00awV41TmIO
Organization: Carnegie Mellon, Pittsburgh, PA


Here is some info on the functioning o fthe parallel port:

The functions of the two pins _STROBE and _ACK are swapped depending on
whether the parallel port is in the input mode or the output mode. In
hardware terms, the _STROBE pin is directly connected to the 8520 CIA.
The CIA pulls this pin down a certain time(I am not sure about the exact
time. I don't have the Hardware Reference Manual with me) after an
access (read or write) to the parallel port data register (0x00bfe101)
What this means it, if you read a value from the port, the _STROBE is
pulled down after you have read the value from 0xbfe101. Similarly, if
you write to 0xbfe101, the _STROBE pin is pulled down after your write
access. What this comes down to is that the _STROBE pulse depends only
on your access to the parallel port data register at 0xbfe101.

_ACK works a little differently. Whenever _ACK is pulled down by an
external source, an interrupt occurs in the Amiga. Your application
program can detect this interrupt and do whatever is necessary. Assuming
your program reads from the port, it waits for the _ACK interrupt, and
when the interrupt occurs, it reads the data. Reading the data
automatically pulses _STROBE, sending the handshake signal out of the
Amiga to the external device. Assuming your program is writing to the
port, it puts the data to the register which in turn pulses _STROBE. The
program then starts for waiting for the _ACK interrupt. The external
device detects the _STROBE signal and reads the data and sends a pulse
to the _ACK line. This causes the interrupt and your program then can
send the next byte and repeat the cycle again.

If you use the DOS routines, you do not have to care about the
interrupts and the pulses. All you need to know is this:

INPUT MODE:	_STROBE	Acknowledges the external device the data was received
			_ACK		Tells the Amiga to read the data on the port


OUTPUT MODE:	_STROBE	Tells the external device to read the data on the port
			_ACK		Tells the Amiga that the data was received.


I hope this helps. There documentation on the parallel port in many
books, but the one that I use the most is the Hardware Reference Manual.
If you have any other questions, feel free to E-Mail me.

Berend.
Newsgroups: comp.sys.amiga.hardware
From: rsc@hao.ucar.edu (Bob Campbell)
Subject: Re: Photo-CD on Amiga/CDTV
Reply-To: rsc@hao.ucar.edu (Bob Campbell)
Organization: High Altitude Observatory/NCAR, Boulder CO
Date: Wed, 7 Oct 1992 20:21:27 GMT

Well, I just some mail from a person who is "in the know" about the Photo-CD
system.  He does not want to be identified or quoted, so I will sum up.
I had my ires crossed about what Photo-CD was.  He informed me that Photo-CD
is a system where you take phtographs with a normal 35mm camera, but when 
you bring in your film to be developed, you ask for them to be put on Photo-CD.
Your images are then pessed onto CD.  What I thought was Photo-CD was a camera
that uses WORM CD's to store images, and then you can view them on your TV.
Selling THAT kind of camera with CDTV would be to me, and ideal package.  I know
I've seen an ad for a camera like this, but I can't remember where, or who the
manufacturer is/was.
My apologies for *assuming* that Kodak was the manufacturer.
-- 
#######################################################################
# Bob Campbell                 #  Yes! Well, thats just the sort of   #
# rcampbell@cudnvr.denver.     #  blinkard, philistine, pig-ignorance #
#           colorado.edu       #  I've come to expect from you        #
# rsc@hao.ucar.edu             #  *non-creative* garbage!       -MPFC # 
#######################################################################
DISCLAIMER: "My views are not necessarily those of my employer."
From: vidynath@function.mps.ohio-state.edu (Vidhyarath K Rao)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: New Amiga(s) Expansion/Future
Date: 14 Oct 1992 18:30:19 -0400
Organization: Department of Mathematics, The Ohio State University
Distribution: world
NNTP-Posting-Host: function.mps.ohio-state.edu

In article <bruce.0b8d@zuhause.MN.ORG> bruce@zuhause.MN.ORG (Bruce Albrecht) writes:
>The PCMCIA peripheral market is starting to ramp up, because most of the
>PC laptops now use it.  I can't say that all PC PCMCIA cards will be usable
>on the A600, but if they are, the A600 users will have a lot to choose from.

In some article I read several months back in some PC magazine, there was
a complaint that the PCMCIA cards can be used only one at a time. If that
is the case with the A600 also, I don't see A600 as a a good replacement
for the 500.

I use the 500 with 2M fast ram, and two floppies. It is very easy to add
a hard disk if need be. I have asked several times on the net, but no
one has said categorically that I can add fast ram *and* other stuff
to the 600 via the PCMCIA at the *same* time. Till I see such a statement
made by some one from CBM, 600 is not a replacement for a 500.



-- 
Vidhyanath Rao			It is the man, not the method, that solves
nathrao+@osu.edu		the problem. - Henri Poincare
(614)-366-9341			[as paraphrased by E. T. Bell]
Newsgroups: comp.sys.amiga.hardware
From: barrett@iastate.edu (Marc N Barrett)
Subject: Re: Avoid the Amiga 4000
Organization: Iowa State University, Ames, IA
Date: Fri, 16 Oct 1992 04:14:35 GMT

In article <1992Oct15.232637.25858@mpifr-bonn.mpg.de> mlelstv@specklec.mpifr-bonn.mpg.de (Michael van Elst) writes:
>In <Bw57Lz.8D4@news.iastate.edu> barrett@iastate.edu (Marc N Barrett) writes:
>>   What is the name of the card, and what are the exact specs?  And
>>where could I get one?
>
>There are 2 boards at that price. One is called Domino sold by X-Pert, the other
>one is a board from ArMax.
>>   BTW, where could I get one for $200?
>
>I know at least 3 German dealers that sell it at DM 298,-, one advertised at DM 249,-
>
>Wether you are able to buy something in Germany is beyond my imagination.

   That is the problem in both cases.  I refuse to buy anything from overseas,
because of the risks involved.  So until the products become available here,
they might as well not exist for me.

>Michael van Elst
>UUCP:     universe!local-cluster!milky-way!sol!earth!uunet!unido!mpirbn!p554mve
>Internet: p554mve@mpirbn.mpifr-bonn.mpg.de
>                                "A potential Snark may lurk in every tree."

---
| Marc Barrett -MB-  |  email: barrett@iastate.edu
--------------------------------------------------
From: grr@cbmvax.commodore.com (George Robbins)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Can I swap A1000 peripherial connectors?
Date: 14 Oct 92 18:40:48 GMT
Reply-To: grr@cbmvax.commodore.com (George Robbins)
Organization: Commodore, West Chester, PA

In article <9210140547.AA15982@teetot.acusd.edu> gs@teetot.acusd.edu (Greg Simon) writes:
> **SORRY IF THIS IS POSTED TWICE**
> Would simply desoldering and swapping the parallel/serial connector
> solve the problem?  Or do I have have to re-wire some pins?

I seem to recall that the footprint for the male and female have
the pins coming out in the opposite order - beyond that, the
parallel port would still not conform the the IBM/PC standard.

Best to deal with custom cables or adapters.

-- 
George Robbins - now working for,     work:   to be avoided at all costs...
but no way officially representing:   uucp:   {uunet|pyramid|rutgers}!cbmvax!grr
Commodore, Engineering Department     domain: grr@cbmvax.commodore.com
From: rich@ut-emx.uucp (Rich G. Kummer)
Newsgroups: comp.sys.amiga.hardware
Subject: 3000T/Monitor Questions
Date: 15 Oct 92 03:09:22 GMT
Distribution: usa
Organization: The University of Texas at Austin

Hi

I have two questions.  Any answers would be appreciated.

1.)   I have an Amiga 3000T and am suffering with an old 
      1084s.  I initially bought a Sony CPD-1304, but I returned
      it because of problems with Overscan and Productivity.
      Since the Sony doesn't scan down to 15.75MHz, does
      this affect games?  Is it worth it to plunk down the
      extra money for a multi-sync, or should I just get a
      SVGA monitor?  What are the (dis)advantages of this?
      

2.)   Since my system only came with 1 floppy drive and
      Commodore was back-ordered on A3010's, I bought a
      3000 A.I.R. drive.  The tech guy at the local Amiga
      retailer tried to install it, but couldn't.  He said
      the drive was a bit too tall to fit in the 2nd floppy
      bay.  Is this really true?  Is there a different floppy
      for the 3000T?  Since mine was an early system and
      possibly one of the first Towers he had worked on, I am 
      wondering if he maybe just didn't know what he was
      doing.  Any similar experiences?

Thanks for any and all responses.


--------------------------------------------------
Rich G. Kummer              rich@emx.cc.utexas.edu
Computation Center          CCML Operations  
The University of Texas at Austin      
--------------------------------------------------
disclaimer:  i am speaking for my own self.
From: batman@amigans.gen.nz (Kerry Emerson)
Newsgroups: comp.sys.amiga.hardware
Subject: DCTV... value for money?
Date: Sun, 11 Oct 92 18:20:45 GMT+1
Organization: Wanganui Amigans, Wanganui, New Zealand

Hi.
 
Is the DCTV value for money or just any overpriced genlock?
Any ideas?

--
     Kerry Emerson.  User: `Darknight Si'  UUCP: Batman@amigans.gen.nz
      Co-SysOp of Silent Imperium: +64 06 3471763 2400bps (8pm-8am).
     Home:  19B Somerset Road, Wanganui, New Zealand. +64 06 3446499.
                        **** Quote of the Week ****
       "If only ibms could be more like Amigas, then, and only then,
          could they be any good to mankind" - [John von Newman]
From: Roger_Nordin@atb.bbs.bad.se (Roger Nordin)
Newsgroups: comp.sys.amiga.hardware
Subject: Avoid the Amiga 4000
Date: 15 Oct 92 06:59:50 GMT
Reply-To: Roger_Nordin@atb.bbs.bad.se (Roger Nordin)
Organization: ANet Test Bench, Karlstad, Sweden
OD-Comment-To: Internet_Gateway

> Except there's a difference:  The deinterlaced modes on the 3000
> weren't actual screen modes.

Yes, and that was the great thing. It works transparent to all software, no
need for patches or upgrades. All in all, the A4000 can hardly use a VGA
monitor as it is now.

> You had to flip a switch, didn't you?

I have never flipped that switch, I have simply never found a need to do it.
For me, this is moot. Amber works great, there's no need for me to turn it off.

> So technically, they DID add resolutions.

Double-PAL/NTSC can be run on ECS chips too. All they did was add drivers for 
it, there's nothing magic about that. They added colours -- just like all the 
other modes. This *still* doesn't change the fact that the no-lace resolution 
available on the A3000 is higher than the one found (if at all :)) on A4000 
systems, which was what the posting your replied to stated.

                        _       .    __
    Roger Nordin     _ //      /!Net /est Bench
 2:203/602.0@fidonet \X/  Internet: Roger_Nordin@bad.se

---
From: mks@cbmvax.commodore.com (Michael Sinz)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: A4000 anim speed?
Date: 8 Oct 92 12:43:21 GMT
Reply-To: mks@cbmvax.commodore.com (Michael Sinz)
Organization: Commodore, West Chester, PA

G.Coulter@Daresbury.ac.uk writes:
>Hi Everyone
>
>Well the A4000 is a last here, 25mhz 68040 processor
>2Mb of chip RAM, 4Mb of fast RAM and the AGA chip set.
>
>But .. does anyone know how fast this machine is I
>have  a  quote  here  from a  UK  magazine " Amiga
>Computing" that says at the unveiling of the A4000
>at  the  recent world of Commodore Amiga  show  in
>Pasadena CA a Commodore  employee demonstrated the
>following. A HAM8 Raytraced animation that updated
>at 60 frames per second in  640x400 resolution. He
>also stated  that the A4000 could handle 60 frames
>per second animation  in any resolution  and color
>depth.

Yes, the system calls in Release 3 that do double
buffering can do it basically the same speed in all
of the video modes.  Well over 2000fps...

>From  what I have heard a lot of people or  saying
>that the  A4000 is slow  at animation play  backs,
>but  this  does not  seem to be the case here,  or
>are  Commodore  using low  delta  frames  to  show
>off more speed.

The A4000 can do animations *very* quickly.  In fact,
the new function calls in Release 3 can do animation
at well over 2000 frames per second *not counting*
the time it takes to render the frame.  Now, the
actual displays I have seen can run at such high
frame rates that the animation software usually
spends most of its time waiting for the next video
frame to be displayed.  (After all, if you are doing
NTSC or PAL interlaced video, anything over 30 or 25
frames per second is useless as that is all the frames
that the display actually does.  In non-interlaced
you can not do over 60 or 50 fps as that is all the
frames the display every shows...  Also note that
*movies* are only 24fps...)

/----------------------------------------------------------------------\
|      /// Michael Sinz  -  Senior Amiga Systems Engineer              |
|     ///                   Operating System Development Group         |
|    ///   BIX:  msinz      UUNET:  mks@cbmvax.commodore.com           |
|\\\///                     When people are free to do as they         |
| \XX/                      please, they usually imitate each other.   |
\----------------------------------------------------------------------/
From: f92bw@efd.lth.se (Bjoern Wesen)
Subject: Re: CIA chip burned out
Organization: Lund Institute of Technology, Sweden
Date: Thu, 8 Oct 1992 11:36:30 GMT

In article <SCHOUTEN.92Oct7161438@sp95.csrd.uiuc.edu> schouten@sp95.csrd.uiuc.edu (Dale Schouten) writes:
>I believe one of my CIA chips might be bad (serial port is screwed
>up).  I noticed there are 2, one labeled even and one labeled odd.
>Are the chips identical?  Are they interchangeable?  Can anyone give
>me a good idea what each affects?  (I noticed that at least one is
>involved with lights, mouse and joystick control, and at least one
>has something to do with the serial port).
>Am I way off base assuming that it is the CIA chip just cuz my serial
>port doesn't seem to work?
>
>Any suggestions would be helpful.
>email is always welcome.
>
>Thanks!
>
>     ///
>    ///		Dale Schouten
>\\\///		schouten@uiuc.edu	(and Nothing else . . .)
> \XX/

Actually the CIA chip that "has something to do with the serial port" 
only manages the RS232 control signals and not the actual data signals. 
If your serial port is screwed up, it could be the CIA but it could also
be the 1488 or 1489 linedrivers connected between the serial port and the
rest of the machine. They seem to break all to often for me at least! The
chip that is most expensive that has something to do with the serial port
is the Paula chip, which handles the data signals Tx and Rx.

Conclusion: You COULD try changing the CIA chips. If the one controlling the
serial port is broken, your parallel port will die... If it's NOT the CIA's 
it's most probable that it's the linedrivers, and they are NOT socketed. If
you can replace them yourself put the new ones in sockets! Otherwise your
beloved Amiga may have to go to a repair center... $$$$$ !

Bjorn Wesen        f92bw@efd.lth.se
From: diku0350@diku.dk (Sam Hepworth)
Newsgroups: comp.sys.amiga.hardware
Subject: CDTV inside?
Summary: Which chips are used in the CDTV?
Date: 12 Oct 92 20:03:36 GMT
Organization: Department of Computer Science, U of Copenhagen

What chips has Commodore used inside the CDTV? My guess is the A500+ and A2091
chips and some stuff to handle the CD-ROM and memory-cards?

Sam Hepworth
Newsgroups: comp.sys.amiga.hardware
Subject: Re: Amiga 1084 monitor
From: alanb@sdl.mdcbbs.com (Alan Braggins)
Date: 16 Oct 92 15:46:49 GMT
Organization: Shape Data (Division of EDS), Cambridge UK
In-reply-to: kervel@cs.utwente.nl's message of Thu, 15 Oct 1992 21:06:01 GMT

>>>>> On Thu, 15 Oct 1992 21:06:01 GMT, kervel@cs.utwente.nl (Rinie Kervel) said:
> Does anyone out there know whether there is a possibility to 'upgrade'
> my 1084 monitor to a (s)VGA Monitor. Perhaps it is already a VGA mon.
> in disguise?
Given the number of times I have seen "Do not feed VGA to your 1084, it
won't like it", I doubt it.

> (Or just a color tv without a tuner)
Yep, works fine for that. (I've used it as a monitor with a VCR and camcorder,
might buy a small tuner sometime too).


--
     Alan Braggins, alanb@sdl.mdcbbs.com, abraggins@cix.compulink.co.uk
Shape Data - A division of EDS-Scicon Limited.   Cambridge, UK +44-223-316673
   "Any technology distinguishable from magic is insufficiently advanced."
 "My employer does not necessarily share my views - but I'm working on it."
From: 890530m@dragon.acadiau.ca (Darren MacKenzie)
Newsgroups: comp.sys.amiga.hardware
Subject: Somebody PLEASE PLEASE HELP!!!
Summary: ADIDE & ATonce
Date: 16 Oct 92 02:48:41 GMT
Organization: Acadia University

This is my fourth time posting this...and hopefully SOMEBODY in the world
must know the answer.  I currently have an ATonce IBM card from Vortex
Systems Ltd. for my Amiga 500.  I want to buy the ADIDE44 (2.5" internal HD),
and I'm wondering if I'll get bus errors, or will it totally work, or will
I fry everything, or what???  SOMEBODY PLEASE HELP!!!...before I do hundreds
of dollars (possibly) of damage!!      
-Doc
From: jerry@marin.uucp (Jerry C. Hudgins)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: XT Bridgeboard Memory
Date: 10 Oct 92 01:36:22 GMT
Organization: Private UUCP Node
X-NewsSoftware: GRn 1.16e (7/4/92) by Mike Schwartz & Michael B. Smith

In article <1b3gsmINNd0k@grapevine.EBay.Sun.COM> smckinty@sunicnc.France.Sun.COM (Steve McKinty - Sun ICNC) writes:
> In article <1992Oct8.170023.27628@javelin.sim.es.com>, dingebre@imp.sim.es.com (David Ingebretsen) writes:
> > I use an A2088D Bridgeboard to do my taxes. Chip Soft (software publisher)
> > has announced that this year their software will require 640K on machines
> > not running Windows. The A2088 has only 512K.
> > 
> > What are my options to up my 512K bridgeboard to 640K?
> 
> 
> Find a PC card with at least 128K & plug it into a spare PC slot in
> your Amiga. :-)
> 
> Seriously, that should be enough. In the early PC days when RAM was still
> expensive there were companies (Quadram comes to mind) who made
> multi-function boards with 256K RAM, a couple of serial lines, gameport
> etc. Something like that should work, and second-hand ones must be pretty
> cheap, if not in the 'throwaway' category by now.

The AST SixPak Plus was very frequently used with the A2088.  Look for one.

-- 
----------------------------------------------------------------------------
Jerry C. Hudgins                   Internet: jerry%marin.uucp@seq.uncwil.edu
125 Cherokee Trail                 UUCP    : uunet!marin!jerry
Wilmington, NC 28409-3407 (USA)    Voice   : (919) 392-2358
From: 5marte_f@spcvxb.spc.edu
Newsgroups: comp.sys.amiga.hardware
Subject: 386 & 486 Bridgeboards
Date: 10 Oct 92 03:27:31 GMT
Followup-To: comp.sys.amiga.hardware,comp.sys.amiga.emulations
X-From: 5marte_f@spcvxb.spc.edu
X-Newsgroups: comp.sys.amiga.emulations
X-Date: 9 Oct 92 23:26:38 EDT
X-Organization: St. Peter's College, US

Hello out there


	Has anyone out ther got the 486 Bridgeboard offered by Elite 
Microcomputers? If so how is it ? Any problems? I know it's based on CBM's 386 
Bridgeboard,but with SERIOUS modifications (or at least that's what Elite told 
me). Also I was wondering if anyone knows whether or not the 386 Birdgeboard 
(or the 486BB) will work with the A4000. I am looking for CBM engineers will 
reply. 

		
		Thanx in Advance
		Felix Marte

		Email replies to :
			5Marte_F@spcvxa.spc.edu
Newsgroups: comp.sys.amiga.hardware
From: schuncke@cwis.unomaha.edu (John Schuncke)
Subject: Northgate Omnikey Keyboard and Keymaps!
Keywords: Omnikey, Northgate, keyboard, keymap
Organization: University of Nebraska at Omaha
Date: Thu, 8 Oct 1992 01:01:47 GMT

I've just ordered (hopefully about to receive) a Northgate Omnikey Ultra for
my A2000 (and soon the A3000).  I have a couple of questions:

A) Where can I get a keymap that will take advantage of all those extra keys?
   A review of the Omnikey Ultra that was posted some time ago in comp.sys.
   amiga.reviews said that Greg Cunningham had written a keymap and keymap
   editor for the Ultra, but no info was given on how to get a copy of
   these.  Filename and anonymous FTP site would be appreciated.  No,
   it's not at wuarchive, either.  I just looked.

B) I understand from the aforementioned review that there can be problems
   using the Northgate with the A3000.  It mentions a small software patch
   that can fix it.  Can anyone here point me at the patch program?  (Once
   again, filename and anonymous FTP site if possible.)

Thanks!
			>JS<
--
+-------------------------------------------------------------------------+
|    John L. Schuncke, Jr.  schuncke@cwis.unomaha.edu                     |
|  Standard Meaningless Disclaimer:  Stop taking this so seriously.       |
+------------I Have Seen the FUN!!!--Zippy the Programmer-----------------+
From: Rod_Rombauer@neonate.amiga.atl.ga.us (Rod Rombauer)
Newsgroups: comp.sys.amiga.hardware
Subject: Re: need help with my harddrive
Date: 14 Oct 92 16:06:43 GMT
Organization: The Village BBS

It could possibly be the power supply. The ones that came with the 500 were
pretty sorry. I have a SupraRam and a Dataflyer hard drive controller and
segate hard drive, and when thay are all hooked up, it wont boot properly
either... Its the power supply. You can either buy something like a Bigfoot
power supply, or go to an IBM cheapo-parts store and get a good 150 or so
watt power supply and splice the wires onto the amigas power supply
connector.. thats only abut $30 or so...

-- Via DLG Pro v0.992
Newsgroups: comp.sys.amiga.hardware
From: stefanb@hathi.informatik.rwth-aachen.de (Stefan Becker)
Subject: Two A4000 questions
Organization: Rechnerbetrieb Informatik  /  RWTH Aachen
Date:  7 Oct 92 11:51:28 GMT

Hi!
Just 2 questions:

1) The A3000 supported static column RAM chips. Does the A4000 Ramsey chip
   support this type too?

2) The C= Ethernet board (A205?) is a Zorro-II board. Does it use DMA to
   transfer its data? If it does, can it still be used in the A4000?

	Stefan

-- 
Mail    : Stefan Becker, Holsteinstrasse 9, D-5100 Aachen ///    Only
Phone   : +49-241-505705                      Germany    ///  Amiga makes
InterNet: stefanb@pool.informatik.rwth-aachen.de     \\\///  it possible..
                                              ECG148  \XX/  -->A3000/25<--