> He has a lot of Exorciser boards and manuals to scan so I will let him
> step forward when he's ready for that. But I do greatly appreciate
> getting this manual.
Nice! Looking forward to that manual dump when it does happen. I haven't done a
ton with EXORbus due to the lack of documentation...
> Excellent information Jonathan!
Glad to share! I get the impression that people often think I'm on some
ideological soapbox when I tell them not to use $flybynite_pcb but really there
are big differences in quality.
> I generally carry the s100computers and many RetroBrew board
Thank *you* f
And just to close the loop on the original documentation request--
someone has come forward with the exact manual for the M68MM01A2 board
and I very much appreciate that.
He has a lot of Exorciser boards and manuals to scan so I will let him
step forward when he's ready for that. But I do greatly
Excellent information Jonathan!
I generally carry the s100computers and many RetroBrew board and have
ordered over 5000 boards from PCBCart.com
I'm not a board designer but if people have any questions about PCB Cart
and the board ordering process, feel free to contact me privately.
Todd
O
Mike,
We use PCB Cart for boards with hard gold edge contacts, like our DEC
prototyping board, Apple II protoboard, XT-IDE, etc. They are the same Chinese
board house used by s100computers.com and N8VEM/RetroBrew Computers. Results
are pretty good for the price.
Expect to order 25 to make hard
Johnathan,
I saw you will be ordering boards pretty soon.
I need to order some boards for my PDP-8/E but I've never ordered boards
before.
What board house do you use? Have you ever specified gold fingers before?
Any advice would be greatly appreciated.
Thanks,
Mike
Chris,
I'm probably going to order some of these on my next circuit board order (this
week or next), do you want a set of them? Seems they are of course "hacking
required," which is fine by me :P
Thanks,
Jonathan
‐‐‐ Original Message ‐‐‐
On Wednesday, January 19th, 2022 at 10:24, Chri
On Wednesday (01/19/2022 at 03:35PM +0100), Jos Dreesen via cctalk wrote:
> On 19.01.22 13:15, Jonathan Chapman via cctalk wrote:
> > That's a neat board! Where can I/we order one?
>
> With me...
> 20 Eur for the set of 2 + shipping.
>
> If you are in the US it is probably cheaper to order new on
On 19.01.22 13:15, Jonathan Chapman via cctalk wrote:
That's a neat board! Where can I/we order one?
With me...
20 Eur for the set of 2 + shipping.
If you are in the US it is probably cheaper to order new ones locally.
Note that I never completed the documentation or wrote the code for the he
That's a neat board! Where can I/we order one?
Thanks,
Jonathan
‐‐‐ Original Message ‐‐‐
On Wednesday, January 19th, 2022 at 04:08, jos via cctalk
wrote:
> On 19.01.22 01:22, Chris Elmquist via cctalk wrote:
>
> > On Tuesday (01/18/2022 at 11:35PM +), Jonathan Chapman wrote:
> >
>
On 19.01.22 01:22, Chris Elmquist via cctalk wrote:
On Tuesday (01/18/2022 at 11:35PM +), Jonathan Chapman wrote:
How's about a Glitchbus board set that's compatible? I was planning on doing it
anyway.
That would be very cool. Something along those lines was my plan B and
I even dug out a
If you include the 6875 Timer chip, follow the data sheet carefully,
it's a little tricky in its discretes (I don't remember from 40 years
ago what exactly it is).
The biggest disadvantage to the 6850 ACIA and 14411 Baud rate generator
is the baud rate is NOT software selectable.
SWTBUG was
On Tuesday (01/18/2022 at 11:35PM +), Jonathan Chapman wrote:
> How's about a Glitchbus board set that's compatible? I was planning on doing
> it anyway.
That would be very cool. Something along those lines was my plan B and
I even dug out a tube of 6802's for the effort. I think I could wi
How's about a Glitchbus board set that's compatible? I was planning on doing it
anyway.
Thanks,
Jonathan
‐‐‐ Original Message ‐‐‐
On Tuesday, January 18th, 2022 at 16:45, Chris Elmquist via cctalk
wrote:
> On Tuesday (01/18/2022 at 03:37PM -0600), Mike Katz wrote:
>
> > If the softwa
On Tuesday (01/18/2022 at 03:37PM -0600), Mike Katz wrote:
> If the software is using ROM routines then the address doesn't matter for
> the applications. If not, you can create an abstraction layer (set of
> drivers for the ACIA, 6875 Timer and PIA) and if all of the code is written
> to the abst
If the software is using ROM routines then the address doesn't matter
for the applications. If not, you can create an abstraction layer (set
of drivers for the ACIA, 6875 Timer and PIA) and if all of the code is
written to the abstraction layer then all you need to do is link in the
appropriat
On Tuesday (01/18/2022 at 02:01PM -0600), Mike Katz wrote:
> I think it might be easier to modify the 680 prom for the I/O addresses of
> the board rather than modify the board to match the ROM.
Agreed-- except the goal, which I failed to elaborate on, is to come
up with an Altair 680 development
I think it might be easier to modify the 680 prom for the I/O addresses
of the board rather than modify the board to match the ROM.
Especially if the address decoding for the I/O is done in PAL (10L8 for
example).
Some 6800 address decoding was done with 74LS138s. This had the
potential to
On Tuesday (01/18/2022 at 02:09PM -0500), Bill Degnan wrote:
> Not exactly a match but I do have this, if it helps:
> https://www.vintagecomputer.net/motorola/mek6800d2/MEK6800D2.pdf
Thanks Bill. I have that too and in fact a couple D2 boards so
I am set there.
This is a specific detail so that
Not exactly a match but I do have this, if it helps:
https://www.vintagecomputer.net/motorola/mek6800d2/MEK6800D2.pdf
Bill
On Tue, Jan 18, 2022 at 1:54 PM Chris Elmquist via cctalk <
cctalk@classiccmp.org> wrote:
>
> I have quite a few Motorola Microsystems Exorciser boards including this
> 6800
I have quite a few Motorola Microsystems Exorciser boards including this
6800 single board computer for which I am lacking any documentation.
I've seen a brochure in Al's collection on Bitsavers but haven't found
any details that might discuss jumper settings or even better,
a schematic.
Wonder
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