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GVP A530 has a Zorro slot???

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Jan Ullrich Bister

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May 9, 1999, 3:00:00 AM5/9/99
to

I've been eyeing that expansion port inside my GVP A530 (right next to
where it's plugged into my Amiga 500) for a long time...but just finally
got curious enough to count how many pins it had. It has 100! ONE HUNDRED!
That makes me wonder...since Zorro-II slots have 100 pins....could it
be...is it possible....? Has really no one before me thought of this?

Is it indeed possible to stick either a graphics card or an i/o board in
there? To put that poor lone expansion port to better use than the 286 AT
bridgeboard GVP once made for it? (Shame they didn't do more than that...)

So....What do y'all think?

Jan


Mikdom99

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May 9, 1999, 3:00:00 AM5/9/99
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->
-> I've been eyeing that expansion port inside my GVP A530 (right next to
-> where it's plugged into my Amiga 500) for a long time...but just finally
-> got curious enough to count how many pins it had. It has 100! ONE HUNDRED!
-> That makes me wonder...since Zorro-II slots have 100 pins....could it
-> be...is it possible....? Has really no one before me thought of this?
->
-> Is it indeed possible to stick either a graphics card or an i/o board in
-> there? To put that poor lone expansion port to better use than the 286 AT
-> bridgeboard GVP once made for it? (Shame they didn't do more than that...)
->
-> So....What do y'all think?
->
-> Jan

Hi Jan,

I don't know but look at

www.nationalamiga.com/technical.shtml "Amiga Technical References"

or

www.amigaworld.freeserve.co.uk "The Big Book of Amiga Hardware"

Thay should be able to help.

regards

mikdom

6 year old Commodore OS 3.1 A1200

Blizzard 060/MMU/FPU & 32 Meg Fast RAM

1 Gig Internal Hard Drive (tight fit)

Squirrel SCSI PCMCIA to CD ROM & ZIP

Running almost as many patches as Windoze (but much better at it)

-> .

Darren Banfi

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May 9, 1999, 3:00:00 AM5/9/99
to

Jan Ullrich Bister wrote:

> I've been eyeing that expansion port inside my GVP A530 (right next to

> where it's plugged into my Amiga 500) for a long time...but just finally

> got curious enough to count how many pins it had. It has 100! ONE HUNDRED!

> That makes me wonder...since Zorro-II slots have 100 pins....could it

> be...is it possible....? Has really no one before me thought of this?
>

> Is it indeed possible to stick either a graphics card or an i/o board in

> there? To put that poor lone expansion port to better use than the 286 AT

> bridgeboard GVP once made for it? (Shame they didn't do more than that...)
>

> So....What do y'all think?
>

> Jan

I read in an Amiga Magazine (CU Amiga) that somebody had infact pluged in a
Zorro Graphics card in this port by changing the pins output ... Like a
bridgeboard thing..

Jan Ullrich Bister

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May 9, 1999, 3:00:00 AM5/9/99
to
Darren Banfi (ba...@cableinet.co.uk) wrote:
> Jan Ullrich Bister wrote:
> > I've been eyeing that expansion port inside my GVP A530 (right next to
> > where it's plugged into my Amiga 500) for a long time...but just finally
> > got curious enough to count how many pins it had. It has 100! ONE HUNDRED!
> > That makes me wonder...since Zorro-II slots have 100 pins....could it
> > be...is it possible....? Has really no one before me thought of this?
>
> I read in an Amiga Magazine (CU Amiga) that somebody had infact pluged in a
> Zorro Graphics card in this port by changing the pins output ... Like a
> bridgeboard thing..

Good. Very good. :) Now, if you could possibly come up with which issue of
CU Amiga this was in...or whether you know anything else about that...
I need all the info I can get..I want to pursue this.

Jan


amigabill

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May 10, 1999, 3:00:00 AM5/10/99
to

> -> I've been eyeing that expansion port inside my GVP A530 (right next to
> -> where it's plugged into my Amiga 500) for a long time...but just finally
> -> got curious enough to count how many pins it had. It has 100! ONE HUNDRED!
> -> That makes me wonder...since Zorro-II slots have 100 pins....could it
> -> be...is it possible....? Has really no one before me thought of this?

It's not a true Zorro2 slot, but close. It's a lot like the A500 Zorro2 slot
hacks on aminet. There's no Buster that I know of (I have an ICD Trifecta
which has a GVP slot compatible thing) so you might not get DMA or some other
things. I actually tried popping an OLD OLD SCSI card in there once, some C
Ltd thing I found in someone's basement but it didn't work. I don't know if
it was dead, got killed then (wasn't any smoke), or if I didn't have the
driver right. It isn't autobooting, it relies on a boot floppy with the SCSI
drivers on it... I haven't messed with it since, but with some better
knowledge of your header pinout compared to the Zorro slot, it should be
possible to put something there. If it was me I'd buy an A2000 buster and
hack your GVP connector to be a true Zorro slot. :) I pan to do this when I
get the time and cash, got a couple A3000 Zorro backplanes, want to do one
for my A500 and one for my A1000. :) I'd love to stick my 030 accelerator and
a gfx card in the 1000 and see what happens...

Bill


--== Sent via Deja.com http://www.deja.com/ ==--
---Share what you know. Learn what you don't.---

Lowry Stiles

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May 10, 1999, 3:00:00 AM5/10/99
to

Jan Ullrich Bister <ull...@gwis.com> wrote in message
news:QhoZ2.1706$Jh3.2...@news1.giganews.com...

> Darren Banfi (ba...@cableinet.co.uk) wrote:
> > Jan Ullrich Bister wrote:
> > > I've been eyeing that expansion port inside my GVP A530 (right next to
> > > where it's plugged into my Amiga 500) for a long time...but just
finally
> > > got curious enough to count how many pins it had. It has 100! ONE
HUNDRED!
> > > That makes me wonder...since Zorro-II slots have 100 pins....could it
> > > be...is it possible....? Has really no one before me thought of this?
> >
> > I read in an Amiga Magazine (CU Amiga) that somebody had infact pluged
in a
> > Zorro Graphics card in this port by changing the pins output ... Like a
> > bridgeboard thing..
>
> Good. Very good. :) Now, if you could possibly come up with which issue of
> CU Amiga this was in...or whether you know anything else about that...
> I need all the info I can get..I want to pursue this.


Take a look in the Hacks section of Aminet. I believe I remember someone
having a similar plan using a Picasso II.

DishDude

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May 10, 1999, 3:00:00 AM5/10/99
to
Jan Ullrich Bister wrote:

> I've been eyeing that expansion port inside my GVP A530 (right next to
> where it's plugged into my Amiga 500) for a long time...but just finally
> got curious enough to count how many pins it had. It has 100! ONE HUNDRED!
> That makes me wonder...since Zorro-II slots have 100 pins....could it
> be...is it possible....? Has really no one before me thought of this?
>

> Is it indeed possible to stick either a graphics card or an i/o board in
> there? To put that poor lone expansion port to better use than the 286 AT
> bridgeboard GVP once made for it? (Shame they didn't do more than that...)
>
> So....What do y'all think?
>
> Jan

If memory serves correctly, the A530's 'slot' was proprietary (not a ZORRO
slot), and was originally intended for
a 80386 processor board GVP was intending to offer. I don't remember if such
a board ever actually made it to market, however.


Adrian

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May 10, 1999, 3:00:00 AM5/10/99
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DishDude wrote in message <37365E4E...@ptdprolog.net>...

>If memory serves correctly, the A530's 'slot' was proprietary (not a ZORRO
>slot), and was originally intended for
>a 80386 processor board GVP was intending to offer. I don't remember if
such
>a board ever actually made it to market, however.

>
I seem to recall that the 286 board for the a530 *did* make it, though.

Adrian

Darren Banfi

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May 10, 1999, 3:00:00 AM5/10/99
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Lowry Stiles wrote:

> Jan Ullrich Bister <ull...@gwis.com> wrote in message
> news:QhoZ2.1706$Jh3.2...@news1.giganews.com...
> > Darren Banfi (ba...@cableinet.co.uk) wrote:

> > > Jan Ullrich Bister wrote:
> > > > I've been eyeing that expansion port inside my GVP A530 (right next to
> > > > where it's plugged into my Amiga 500) for a long time...but just
> finally
> > > > got curious enough to count how many pins it had. It has 100! ONE
> HUNDRED!
> > > > That makes me wonder...since Zorro-II slots have 100 pins....could it
> > > > be...is it possible....? Has really no one before me thought of this?
> > >

> > > I read in an Amiga Magazine (CU Amiga) that somebody had infact pluged
> in a
> > > Zorro Graphics card in this port by changing the pins output ... Like a
> > > bridgeboard thing..
> >
> > Good. Very good. :) Now, if you could possibly come up with which issue of
> > CU Amiga this was in...or whether you know anything else about that...
> > I need all the info I can get..I want to pursue this.
>
> Take a look in the Hacks section of Aminet. I believe I remember someone
> having a similar plan using a Picasso II.

I don't know what mag it was in ; ( Sorry..
All the mag said that it was not worth trying to hack the A500 Expansion Bus to
fit a Zorro II Card.
(It was a SMALL paragraph)

banfi.vcf

Jan Ullrich Bister

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May 11, 1999, 3:00:00 AM5/11/99
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amigabill (amig...@my-dejanews.com) wrote:
> > -> I've been eyeing that expansion port inside my GVP A530 (right next to

> > -> That makes me wonder...since Zorro-II slots have 100 pins....could it
> > -> be...is it possible....? Has really no one before me thought of this?
> It's not a true Zorro2 slot, but close. It's a lot like the A500 Zorro2 slot
> hacks on aminet. There's no Buster that I know of (I have an ICD Trifecta

Ah! You're the first one who seems to really have some knowledge about
this. :-) How is it a lot like the A500 Zorro-II slot hacks, though? And
what role does Buster play in this? (I thought that this was an A3000-only
chip?)

> drivers on it... I haven't messed with it since, but with some better
> knowledge of your header pinout compared to the Zorro slot, it should be
> possible to put something there. If it was me I'd buy an A2000 buster and
> hack your GVP connector to be a true Zorro slot. :) I pan to do this when I

Alright. Tell me how, I'll do it. :-) So, anyway...DMA probably wouldn't
be much of a problem...see, what I really want is a faster serial port
because I am sick of the Amiga's internal serial port bringing my system
to a major slowdown and preventing me from doing SCSI accesses without
instant serial errors. This is no way to browse the WWW, having to cache
stuff in RAM:. :-(

> get the time and cash, got a couple A3000 Zorro backplanes, want to do one
> for my A500 and one for my A1000. :) I'd love to stick my 030 accelerator and
> a gfx card in the 1000 and see what happens...

:) What do you know about A3000 Zorro backplanes? AFAIK there's also the
issue of the A3000 slots being Zorro-III, not II (i.e. 32 bits wide)...
Do you happen to know anything about the A500 busboard made by Micronik
for their Infinitiv towers?

Jan

Bert Bosma

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May 11, 1999, 3:00:00 AM5/11/99
to
> I seem to recall that the 286 board for the a530 *did* make it, though.

It did indeed. I'm the "proud" owner of one of those thingies 8-)).

GVP called the bus a mini-slot and the pin assignments are not
mentioned in any of the user guides (HD of 286) 8-((.

Regards,

Bert
--
---------------------------------------------
L.M. Bosma (l...@telekabel.nl) or ICQ 16102464
Amiga 4000/74Mb PPC604e 233Mhz/68060 50Mhz
Picasso IV Ariadne-II Concierto Fastlane Z3
Dynalink 56k6 1Gb Quantum 2.1Gb Seagate
Essential: Miami, Voyager, NewIcons, AHI, P96
---------------------------------------------


Darren Mackenzie

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May 12, 1999, 3:00:00 AM5/12/99
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Jan Ullrich Bister wrote:
[...]

> Alright. Tell me how, I'll do it. :-) So, anyway...DMA probably wouldn't
> be much of a problem...see, what I really want is a faster serial port
> because I am sick of the Amiga's internal serial port bringing my system
> to a major slowdown and preventing me from doing SCSI accesses without
> instant serial errors. This is no way to browse the WWW, having to cache
> stuff in RAM:. :-(
>

It seems to be that if you just want better throughput with your
serial, you should save your time from making a hack and spend the
money on a decent accelerator.

I have an 060/50 in my A2000, and can do better than 115kbps
null modem transfers without it slowing down the system any
noticable amount. 56kbps downloads/web browsing over the modem
is NO change in CPU activity. This is all on the standard serial
port.

I think someone made an 040 board for the A500...Correct?
I remember it coming out back when I had my first A500, but
they were so ungodly expensive at the time, I passed. I'm sure
one still exists....it would just be a matter of finding someone
to sell you one.

-Darren
dar...@amy.mv.com
My systems are listed here:
http://www.mv.com/ipusers/amy/wolfsden.html

Skull_One

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May 12, 1999, 3:00:00 AM5/12/99
to
Hi, I have a few questions about the Zorro bus.
1. Is it 16 or 32 bit wide?
2. Does it allow DMA?
3. What are its transfer rates?
5. What frequencies does it work at?

Thanks in advance,

Skull_One

--
------------------------------------------------------------------------
Carved upon my stone...
'My body lie, but still I roam'

G. Jones

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May 12, 1999, 3:00:00 AM5/12/99
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Skull_One wrote in <7hccvu$ebm$1...@nnrp1.deja.com> on 12-May-99 17:15:48 :
>Hi, I have a few questions about the Zorro bus.
>1. Is it 16 or 32 bit wide?

Zorro 2 is 16, Zorro 3 is 32 bit by using an address and data phase.

>2. Does it allow DMA?

Yup, but it's a little broken, Buster handles DMA and is bugged.

>3. What are its transfer rates?

dunno, 3-4Meg a sec zorro2, 9+ for zorro3?

>5. What frequencies does it work at?

it is async so it can be anything, but 25Mhz is used due to buster
running at that speed.

---------G. O. Jones---------
g...@cydergoth.freeserve.co.uk
-----------------------------


Jan Ullrich Bister

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May 13, 1999, 3:00:00 AM5/13/99
to

> 1. Is it 16 or 32 bit wide?

Zorro-II is 16 bit wide, Zorro-III is 32-bit wide. The following answers
relate to Zorro-II, as that's all I know anything about...

> 2. Does it allow DMA?

Not sure on that one, but I tend to say no. I thought I heard somewhere
that any two cards installed in Zorro slots (ie an accelerator with RAM
and a SCSI host adapter) cannot transfer data between each other bypassing
the CPU. I could be wrong though.

> 3. What are its transfer rates? > 5. What frequencies does it work at?

3.5 MHz, which is half the clock rate of about 7 MHz (same as the 68000
CPU's speed in unaccelerated Amigas).

Jan

Henrik Mikael Tikanvaara

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May 13, 1999, 3:00:00 AM5/13/99
to
In comp.sys.amiga.networking Jan Ullrich Bister <ull...@gwis.com> wrote:

: be much of a problem...see, what I really want is a faster serial port


: because I am sick of the Amiga's internal serial port bringing my system
: to a major slowdown and preventing me from doing SCSI accesses without
: instant serial errors. This is no way to browse the WWW, having to cache
: stuff in RAM:. :-(


Have you tried 8n1.device or Miami? Both of them handle serial access
wicked fast and I am able to transfer at 115200 bps with little CPU
usage on my 030/50.


amigabill

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May 13, 1999, 3:00:00 AM5/13/99
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> > > -> I've been eyeing that expansion port inside my GVP A530 (right next to
> > > -> That makes me wonder...since Zorro-II slots have 100 pins....could it
> > > -> be...is it possible....? Has really no one before me thought of this?
> > It's not a true Zorro2 slot, but close. It's a lot like the A500 Zorro2 slot
> > hacks on aminet. There's no Buster that I know of (I have an ICD Trifecta
>
> Ah! You're the first one who seems to really have some knowledge about
> this. :-) How is it a lot like the A500 Zorro-II slot hacks, though? And
> what role does Buster play in this? (I thought that this was an A3000-only
> chip?)

The GVP slot is like the Aminet A500 Zorro2 hacks in that they are an
incomplete implementation of Zorro2 that works with quite a few zorro2
boards but not all, and does not support certain Zorro2 features that
need Buster or an equivalent to do properly. Most of the GVP slot hooks
directly to the side slot on the A500, a little bit doesn't but if
I remember hooks to the same type of chip described in the hack
docs from aminet, a hex inverter I think but am not positive after
all these years. I never actually finished my first attempt at the
Buster version for my A500 as I got an A2000 and quit working on it.
It was basically taking the stuff from the A2000 service manual that
wasn't in the A500 service manual and adding it, I was even going to put
in an A2000 accelerator slot. Unfortunately I lost what I had started in
a hard drive head crash a few years ago... I'll look into it again
though, as that is basically what I need to do to make my A3000 backplane
Zorro2 hacks for my A500 and 1000. It'll take a while to get going
again, but I have better PCB software now (Windows unfortunately) that
might be able to output to postscript. (I hope) I'll definitely upload
to aminet when there's something to look at.

The A2000 had the original Zorro2 Buster, the A3000 has a seriously
redesigned and upgraded Buster that runs Zorro3. The A3000 zorro backplane is
basically just zorro and isa slots. I am going to hook it up to an A2000
buster instead of a Zorro3 buster. Though with an 030 accelerator it could be
possible to really hack it all up and create a zorro3 bus with a Zorro3
buster, but that's more work that I'd like to do, and a VERY SERIOUS HACK...
Also, I don't have my Trifecta here with me, it's at my mom's place 500 miles
away, but I'll try to get it here or maybe find something on the web
desccribing the pins for the GVP slot. With a multimeter and the aminet hack
docs you should be able to figure it out with a multimeter and make a direct
adaptor. I've used ISA slots to make 100pin zorro and 86pin A500 side slot
connectors. Take 2 ISA slots, cut them in half, and epoxy the piecces back
together to make one zorro slot. You can probably do an 86pin A500 connector
with one ISA slot this way. Tedious but proven to work, and I have yet to
find a place to order 86 or 100 pin slots from. :/

> > drivers on it... I haven't messed with it since, but with some better
> > knowledge of your header pinout compared to the Zorro slot, it should be
> > possible to put something there. If it was me I'd buy an A2000 buster and
> > hack your GVP connector to be a true Zorro slot. :) I pan to do this when I
>

> Alright. Tell me how, I'll do it. :-) So, anyway...DMA probably wouldn't

> be much of a problem...see, what I really want is a faster serial port
> because I am sick of the Amiga's internal serial port bringing my system
> to a major slowdown and preventing me from doing SCSI accesses without
> instant serial errors. This is no way to browse the WWW, having to cache
> stuff in RAM:. :-(

For just a serial card you probably don't need Buster. I recently got an A500
from an Ebay auction that has my first A3000 backplane already hacked on
like the aminet zorro2 hacks, and runs a Dataflyer SCSI card. This was
my inspiration regarding the A3000 backplane, I plan to add Buster to it
and make it a real Zorro2 bus that any Zorro2 card should work in. Just
adapting the GVP slot pins to the Zorro2 card slot should do what you need
as mentioned. Doing a true Zorro expansion with a GVP SCSI box might mean
quite a bit of rewiring the GVP board, as you'd need to disconnect it from
the A500 side most likely and wire it into the Zorro bus after Buster
and treat it like an actual Zorro2 card, which really shouldn't be hard, just
a lot of work and care.

Sorry, don't know anything about Micronik boards...

If you want, email me and ask to be kept informed of progress. And keep
bugging me, as I tend to let things go for a while when I'm not "in the mood"
to sit down and work on stuff. Plus I work full time doing VLSI chip design
and am working part time myself on a hopefully commercial Zorro3 product, so
there's not much time to go around, easy to get lazy or caught up in one
thing and let another thing sit for a while. :)

Bill

amigabill

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May 14, 1999, 3:00:00 AM5/14/99
to

> I have an 060/50 in my A2000, and can do better than 115kbps
> null modem transfers without it slowing down the system any
> noticable amount. 56kbps downloads/web browsing over the modem
> is NO change in CPU activity. This is all on the standard serial
> port.
>
> I think someone made an 040 board for the A500...Correct?
> I remember it coming out back when I had my first A500, but
> they were so ungodly expensive at the time, I passed. I'm sure
> one still exists....it would just be a matter of finding someone
> to sell you one.

If he can find one, I'd recommend getting one. They were made by
Progressive peripherals and there weren't many of them, as the
company caught fire not long after the board debued and they went
out of business thanks to an unhelpful insurance company, or so
the story I heard goes. I got one, had to fix the thing myself
(with help from college buddy) but ti was worth the money. Only
takes 8MB ram though, and if you get a 4MB board, good luck upgrading
as it takes ZIP RAM chips like the A3000 does, which are also very hard
to find. Man, it's sweet though. :) And then do the Zorro serial card
as well. ;)

Peter Hutchison

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May 14, 1999, 3:00:00 AM5/14/99
to
In response to your last message (Skull_One <skul...@my-dejanews.com>) about Technical questions , I had to say this:

> Hi, I have a few questions about the Zorro bus.

> 1. Is it 16 or 32 bit wide?
Zorro 2 is 16 bit


Zorro 3 is 32 bit

> 2. Does it allow DMA?
Yes. Need latest buster chip for problem free DMA

> 3. What are its transfer rates?

Unknown

> 5. What frequencies does it work at?

Unknown

There is a hardware reference site somewhere that can tell you
more about this. Can't remember the url...?


P.J.Hutchison
http://www.blizzard.u-net.com
** AmigaII. The new standard of computing.

Jan Ullrich Bister

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May 15, 1999, 3:00:00 AM5/15/99
to
Henrik Mikael Tikanvaara (htik...@hut.fi) wrote:
> : because I am sick of the Amiga's internal serial port bringing my system

> : to a major slowdown and preventing me from doing SCSI accesses without

> Have you tried 8n1.device or Miami? Both of them handle serial access


> wicked fast and I am able to transfer at 115200 bps with little CPU
> usage on my 030/50.

You fail to mention which Amiga model you have..I hear that A1200/A4000
users regularly achieve rates that high without trouble..I have an A500,
albeit accelerated (030/40MHz). I used 8n1.device for a long time indeed
before I switched from AmiTCP to Miami (using its internal routines now).
I only use a serial speed of 38,400bps and yet my modem stops transferring
every single time that an SCSI activity takes place because a serial
error occurred. At 57,600bps I once managed to lock up my system
completely where I had no choice but to reboot. While I'm online, I cannot
download straight-to-disk, I cannot cache browser stuff on disk, I cannot
use my CD-player program to listen to music through my CD-ROM drive
because that involves constant updating over the SCSI bus...it's
sickening!

Jan


P.S.: My GVP A530 does give me the option to turn DMA off, but while
that allows for disk and modem activity to take place at the same time, it
hogs my system even more and makes it unsafe to use (lock-up potential)...

Jacob Dahl Pind

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May 15, 1999, 3:00:00 AM5/15/99
to
>P.S.: My GVP A530 does give me the option to turn DMA off, but while
>that allows for disk and modem activity to take place at the same time, it
>hogs my system even more and makes it unsafe to use (lock-up potential)...
Have you triede the patchgvp programme ? it should help durring heavy seriel
port activit and dma from hdcontrollers.

regards Jacob Dahl Pind

--------------------------------------------------
= IF this computer is with us now... =
=...It must have been meant to come live with us.=
= (Belldandy - Goddess First class) =
-------------------------------------------------


A.R.K.

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May 16, 1999, 3:00:00 AM5/16/99
to
>P.S.: My GVP A530 does give me the option to turn DMA off, but while
>that allows for disk and modem activity to take place at the same time, it
>hogs my system even more and makes it unsafe to use (lock-up potential)...


I believe that the GVP HD8 (impact) drives used something called
'hidden DMA' which could cause all sorts of problems with other
add-ons. Whether this is the same as the A530's DMA, I don't know.

If you knew someone with a SupraTurbo accelerator for the A500's,
they have a problem which sorted out this problem, whether it'd work
for you I don't know, but its worth a try..

Anthony

Jan Ullrich Bister

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May 16, 1999, 3:00:00 AM5/16/99
to
> There is a hardware reference site somewhere that can tell you
> more about this. Can't remember the url...?
> P.J.Hutchison

Well, DOH! Try the hell to remember. Please. :) You know that this site
might just be ESSENTIAL for some of us want-a-zorro-slot people. :)

Jan

Jostein Klemmetsrud

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May 17, 1999, 3:00:00 AM5/17/99
to
Hello Jan Ullrich Bister! On 17-May-99 00:19:31, you said:

>> There is a hardware reference site somewhere that can tell you
>> more about this. Can't remember the url...?

>Well, DOH! Try the hell to remember. Please. :) You know that this site


>might just be ESSENTIAL for some of us want-a-zorro-slot people. :)

http://www.rapidnet.com/~wblock/a4000hard/main.html


--
Jostein Klemmetsrud


Le Moullec Yannick

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May 17, 1999, 3:00:00 AM5/17/99
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Zorro info in FRENCH : http://www.multimania.com/synapse/

Mikdom99

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May 17, 1999, 3:00:00 AM5/17/99
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-> Hello Jan Ullrich Bister! On 17-May-99 00:19:31, you said:
->
-> >> There is a hardware reference site somewhere that can tell you
-> >> more about this. Can't remember the url...?
->
-> >Well, DOH! Try the hell to remember. Please. :) You know that this site
-> >might just be ESSENTIAL for some of us want-a-zorro-slot people. :)
->
-> http://www.rapidnet.com/~wblock/a4000hard/main.html
->
->
-> --
-> Jostein Klemmetsrud
Hi,

Try

www.amigaworld.freeserve.co.uk

"The Big Book of Amiga Hardware"

and

www.nationalamiga.com/technical.shtml

"National Amiga Technical References"

mikdom

-> .

Rask Ingemann Lambertsen

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May 17, 1999, 3:00:00 AM5/17/99
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On 17-Maj-99 12:48:45, Jostein Klemmetsrud wrote the following about "Re: Technical questions about Zorro slots":

> Hello Jan Ullrich Bister! On 17-May-99 00:19:31, you said:

>>> There is a hardware reference site somewhere that can tell you

>>> more about this. Can't remember the url...?

>>Well, DOH! Try the hell to remember. Please. :) You know that this site


>>might just be ESSENTIAL for some of us want-a-zorro-slot people. :)

> http://www.rapidnet.com/~wblock/a4000hard/main.html

I can find no such information there. What is the exact URL?

Regards,

/¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯T¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯\
| Rask Ingemann Lambertsen | postm...@rask.nospam.kampsax.k-net.dk |
| Registered Phase5 developer | WWW: http://www.gbar.dtu.dk/~c948374/ |
| A4000, 775 kkeys/s (RC5-64) | "ThrustMe" on XPilot and EFnet IRC |
| If it jams, force it. If it breaks, it needed replacing. |


Rask Ingemann Lambertsen

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May 23, 1999, 3:00:00 AM5/23/99
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Skull_One wrote in <7hccvu$ebm$1...@nnrp1.deja.com> on 12-May-99 17:15:48 :
> Hi, I have a few questions about the Zorro bus.
> 1. Is it 16 or 32 bit wide?

Zorro-2 has 24 address lines and 16 data lines. Zorro-3 has 32 address
lines and 32 data lines (multiplexed).

> 2. Does it allow DMA?

Yes. Note that it requires at least Buster revision 11 to work in
A3000/A4000.

> 3. What are its transfer rates?

3.5 MB/s max for Zorro-2. Zorro-3 can do around 58 MB/s (65 ns to transfer
4 bytes) without multiple transfer cycles (burst) and around 123 MB/s (1980 ns
to transfer 256 bytes) with syncronous multiple transfer cycles.

Note that the Zorro-3 implementation in C='s buster is much slower than
this, so transfers that have to go through the motherboard max out at around
18 MB/s.

> 5. What frequencies does it work at?

Zorro-2 runs syncronously at 7 MHz. Zorro-3 is asyncronous except for bus
master arbitration, which is clocked at 7 MHz.

Regards,

/ŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻTŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻŻ\


| Rask Ingemann Lambertsen | postm...@rask.nospam.kampsax.k-net.dk |
| Registered Phase5 developer | WWW: http://www.gbar.dtu.dk/~c948374/ |
| A4000, 775 kkeys/s (RC5-64) | "ThrustMe" on XPilot and EFnet IRC |

| Machine-independent: Does not run on any existing machine. |


Gl...@canit.se

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May 24, 1999, 3:00:00 AM5/24/99
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> + On 10-Maj-99 08:36:10
+Adrian <adr...@omatic.com> wrote

>>a 80386 processor board GVP was intending to offer. I don't remember if
>such
>>a board ever actually made it to market, however.

>>


>I seem to recall that the 286 board for the a530 *did* make it, though.

It did, I was about to buy a used A530 with an 286 board in it once.


| ___ | Email 姣 Sha...@bay-watch.com |
| / __\ __ | Homepage 姣 http://www.canit.se/~glenn |
| __ / /__ / /__ ____ ____ __ | IRC 姣 XT600 @ IRC-net |
| (__/ /_ // / -_) _ ) _ )__) | 8 Amigas, 6 PC's, 12 8-bit computers. |
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Thomas Weeks

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May 25, 1999, 3:00:00 AM5/25/99
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In article <739.813T73...@canit.se>, Gl...@canit.se says...

>
>> + On 10-Maj-99 08:36:10
> +Adrian <adr...@omatic.com> wrote
>
>>>a 80386 processor board GVP was intending to offer. I don't remember if
>>such
>>>a board ever actually made it to market, however.
>
>>>
>>I seem to recall that the 286 board for the a530 *did* make it, though.
>
>It did, I was about to buy a used A530 with an 286 board in it once.


The expansion connector in the A530 was NOT an ISA slot.. but just a mini
header that broke out the A500 expansion connector ("brainless Zorro").

GVP did off the PC286, but it was actually created by Vortex, the same company that
created the Vortex 286 hardware emulator. It would not surprise me if they also
ported their 386 hardware emulator to this...

Does anyone know more? I run the 286 hardware emul. and would KILL for a 386 in there
so that I could run Linux(x86) or the like!


Does anyone here know what the latest rev of the PC286 software is/was?
They SAID that they were going to eventually support HD flopp drives if/when C= got
around to it... well.. we have HD floppies for the Amy's now.. but the support for the
PC286 dried up before Vortex (or anyone else) ever got around to updating the
software...

Did anyone buy th rights to it or something?

Just curious...

email: twe...@texas.net

Tom D Tek

Robert Pidduck

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May 25, 1999, 3:00:00 AM5/25/99
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Thomas Weeks wrote:
>

>
> Does anyone know more? I run the 286 hardware emul. and would KILL for a 386 in there
> so that I could run Linux(x86) or the like!
>


Have you tried out Minix? That runs on 8088, 286, 386 or upwards. And I
believe Linux was developed from it.

see http://www.cs.vu.nl/~ast/minix.html for more details.

Bye,
Robert.

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