-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mike Douglas
via cctalk
Sent: Wednesday, March 04, 2020 10:02 PM
To: cctalk@classiccmp.org
Subject: SWTPC 6800, FLEX and Percom Floppy
Now that I have my SWTPC 6800 loading and saving programs with paper tape,
cassette, and f
Now that I have my SWTPC 6800 loading and saving programs with paper tape,
cassette, and floppy disk (using the Percom LFD-400 controller and their
MiniDOS and MPX “operating systems”), the next logical step is getting FLEX up
and running. Unfortunately, I only have the Percom floppy controller
I have typed in the assembly source for couple of the missing utilities for
which I was looking (there are a few listings in the LFD-400 manual), so I now
have a pretty complete and useful Percom disk system for the SWTPC 6800. I also
wrote FLOP2PC and PC2FLOP utilities to archive a disk to a
> I’m restoring a SWTPC 6800 that includes the Percom LFD-400 floppy
> controller. This controller goes on the SS-50 bus instead of the SS-30 bus
> where the SWTPC controllers installed. The standard Percom MiniDOS PROM is
> installed, and the other two PROM sockets have a third part
weeks ago, for a period of time.I did
not see him at VCF Midwest, due to his health
issues.https://www.corshamtech.com/back-in-business-for-now/
GregChicago==From: Mike Douglas
To: cctalk@classiccmp.org
Subject: SWTPC 6800 and Percom Floppy Controller
I?m restoring a SWTPC 6800 that include
him at VCF Midwest, due to his health issues.
https://www.corshamtech.com/back-in-business-for-now/
Greg
Chicago
==
From: Mike Douglas
To: cctalk@classiccmp.org
Subject: SWTPC 6800 and Percom Floppy Controller
I?m restoring a SWTPC 6800 that includes the Percom LFD-400 floppy controller.
This
t: Tuesday, January 07, 2020 7:45 PM
To: cctalk@classiccmp.org
Subject: SWTPC 6800 and Percom Floppy Controller
I’m restoring a SWTPC 6800 that includes the Percom LFD-400 floppy controller.
This controller goes on the SS-50 bus instead of the SS-30 bus where the SWTPC
controllers installed. Th
I’m restoring a SWTPC 6800 that includes the Percom LFD-400 floppy controller.
This controller goes on the SS-50 bus instead of the SS-30 bus where the SWTPC
controllers installed. The standard Percom MiniDOS PROM is installed, and the
other two PROM sockets have a third party extension called
U and MP-C
or MP-S board). I am going to clean the buss connectors and see if
it helps!
On 1/1/2018 12:32 PM, Nick Allen wrote:
Hey everyone, Happy New Years! I am thankful for an active
community that enjoys helping each other learn, and today I am
coming with an ask for help.
I have a
ctalk
Sent: Monday, January 01, 2018 6:34 PM
To: cctalk@classiccmp.org
Subject: Re: Help diagnosing boot issue SWTPC 6800
cleaning the connector pins with a brass brush solved the issue, thanks
everyone!!
On 1/1/2018 5:03 PM, Nick Allen wrote:
> Thanks for the tips everyone! I can confirm power
MP-S board). I am going to clean the buss connectors and see if it
helps!
On 1/1/2018 12:32 PM, Nick Allen wrote:
Hey everyone, Happy New Years! I am thankful for an active
community that enjoys helping each other learn, and today I am
coming with an ask for help.
I have a SWTPC 6800 and
clean the buss connectors and see if it
helps!
On 1/1/2018 12:32 PM, Nick Allen wrote:
Hey everyone, Happy New Years! I am thankful for an active community
that enjoys helping each other learn, and today I am coming with an
ask for help.
I have a SWTPC 6800 and ADM3A terminal, I can get it to
thankful for an active community
that enjoys helping each other learn, and today I am coming with an
ask for help.
I have a SWTPC 6800 and ADM3A terminal, I can get it to boot, and when
it boots it will continue to boot for several hours. But getting it
to successfully boot takes upwards of 100
You should also verify that you have solid +8V and +/- 12V on the
backplane.
In one of my SWTPC 6800 machines, I found that the white Molex connector
on the power supply filter board had degraded contacts that over time
(a long time!) where heating and actually melted some of the connector
shell
I had that happening on mine.. came down to a bad RAM board.
Sent from my Samsung device
Original message
From: Nick Allen via cctalk
Date: 2018-01-01 10:32 AM (GMT-08:00)
To: cctalk@classiccmp.org
Subject: Help diagnosing boot issue SWTPC 6800
Hey everyone
cult to remove and insert.
Bill S.
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Nick Allen via
cctalk
Sent: Monday, January 01, 2018 1:32 PM
To: cctalk@classiccmp.org
Subject: Help diagnosing boot issue SWTPC 6800
Hey everyone, Happy New Years! I
Hey everyone, Happy New Years! I am thankful for an active community
that enjoys helping each other learn, and today I am coming with an ask
for help.
I have a SWTPC 6800 and ADM3A terminal, I can get it to boot, and when
it boots it will continue to boot for several hours. But getting it
I have a very nice SWTPC 6800 for sale. Please see the ad on the VCF
forums for complete information.
If you have inquiries, please do send them directly to me via e-mail.
Thanks!
Sellam
I have a nice SWTPC 6800 with a color video board and custom sound board
for sale.
The ad is on the VCF forums:
http://www.vcfed.org/forum/showthread.php?56190-SouthWest-Technical-Products-Corporation-(SWTPC)-6800&p=447078#post447078
Please inquire directly to me via e-mail if you have
: "General Discussion: On-Topic and Off-Topic Posts"
Subject: Re: SWTPC 6800 issues again
On Mon, Nov 28, 2016 at 8:22 AM, Brad H wrote:
> Hey guys,
>
>
>
> You might recall a while back I was having issues where I'd have to power
> up/power off multiple times be
On November 28, 2016 1:37:54 PM CST, "Ian S. King" wrote:
>On Mon, Nov 28, 2016 at 8:22 AM, Brad H
>> wrote:
>
>> Hey guys,
>>
>>
>>
>> You might recall a while back I was having issues where I'd have to
>power
>> up/power off multiple times before I'd get the 6800 to start up
>correctly
>> and
On 11/28/16 11:22 AM, Brad H wrote:
Hey guys,
You might recall a while back I was having issues where I'd have to power
up/power off multiple times before I'd get the 6800 to start up correctly
and give me the SWTBUG prompt. What I did was remove an overwrought
modified RAM board and repla
On Mon, Nov 28, 2016 at 8:22 AM, Brad H wrote:
> Hey guys,
>
>
>
> You might recall a while back I was having issues where I'd have to power
> up/power off multiple times before I'd get the 6800 to start up correctly
> and give me the SWTBUG prompt. What I did was remove an overwrought
> modifie
Hey guys,
You might recall a while back I was having issues where I'd have to power
up/power off multiple times before I'd get the 6800 to start up correctly
and give me the SWTBUG prompt. What I did was remove an overwrought
modified RAM board and replaced it with a more basic 4K board set to
Okay, I have it all dialed in now!
With that iffy memory board swapped out, the system works beautifully. I
did have some trouble loading Altair BASIC but after looking at a video of
someone running it I discovered an extra line that appeared to be in the
Altair patch file and also a couple o
On Wednesday (09/07/2016 at 08:04AM -0700), Brad H wrote:
>
> Thanks Chris. I figured it was something like that with my first MP-M. I am
> curious though why simply setting another board to cover 8000-BFFF won't
> allow the system to operate in that board's absence. It bothers me that I'm
>
Ahhh.. okay, maybe I misunderstood. I was reading '4096 words of 8 bit RAM', I
don't know 'words' that well so I put it in a calculator and it was telling me
it was 8K. But docs suggested the original MP-M came with 2k. So setting the
board # jumper to 4, if it was at 2K, would run $4000 to $
-Original Message-
From: Chris Elmquist [mailto:chr...@pobox.com]
Sent: Wednesday, September 7, 2016 6:13 AM
To: General Discussion: On-Topic and Off-Topic Posts ;
Brad H ; 'General Discussion: On-Topic and
Off-Topic Posts'
Subject: RE: SWTPC 6800 weirdness
Both MIKBUG
---Original Message-
>From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of
>william degnan
>Sent: Tuesday, September 6, 2016 2:52 PM
>To: General Discussion: On-Topic and Off-Topic Posts
>
>Subject: Re: SWTPC 6800 weirdness
>
>>
>>
>> >
>>
Okay I think I'm starting to figure this out a bit. Beginning with basics, I
cleaned up the contacts on all the SS50 pins. The system seems to power up
more reliably now. Next, I poked around in the monitor to figure out exactly
which addresses the modified MP-M board was dealing with. Since
I don't have the right caps to try with the MP-M so I'll have to wait. But I
did try again setting my DRC boards to A000. And when the machine is turned
on, it does respond, but it just produces garbage characters on the terminal.
Sometimes, two, sometimes three, or a whole line of them.
I
I did a capacitor check on the modified MP-M board. On the 100uf/16v one down
at the bottom center, the most I get is 430uf and then it starts dropping. I
can't seem to get a proper reading out of the same one on the upper right..
that's the same on both MP-M boards. So I'm wondering if I'd
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of william degnan
Sent: Tuesday, September 6, 2016 2:52 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800 weirdness
>
>
> >
> >
> >Brad,
> >
>
>
> >
> >
> >Brad,
> >You'll need to make electrical measurements, from the system checkout in
> >the manual. You very possibly will have marginal components that need to
> >be replaced, but it's best to try to locate which is bad rather that to
> replace at random.
>
> >A000 is not the same pl
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of william degnan
Sent: Tuesday, September 6, 2016 11:37 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800 weirdness
On Tue, Sep 6, 2016 at 2:25 PM, Brad H
wrote:
> My 6
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Fred Cisin
Sent: Tuesday, September 6, 2016 11:36 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800 weirdness
On Tue, 6 Sep 2016, Brad H wrote:
> My 6800 has been mos
On Tue, Sep 6, 2016 at 2:25 PM, Brad H
wrote:
> My 6800 has been mostly working, but it seems to be occasionally flaking
> out. I don't know why. Sometimes you go to power it up, and there's no
> response on terminal side. The 'fix' is sometimes to wiggle the memory/CPU
> boards and then for s
On Tue, 6 Sep 2016, Brad H wrote:
My 6800 has been mostly working, but it seems to be occasionally flaking
out. I don't know why. Sometimes you go to power it up, and there's no
response on terminal side. The 'fix' is sometimes to wiggle the memory/CPU
boards and then for some reason it's fine
My 6800 has been mostly working, but it seems to be occasionally flaking
out. I don't know why. Sometimes you go to power it up, and there's no
response on terminal side. The 'fix' is sometimes to wiggle the memory/CPU
boards and then for some reason it's fine(ish). There are five cards
install
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mouse
> Sent: 19 August 2016 13:39
> To: cctalk@classiccmp.org
> Subject: Re: SWTPC 6800
>
> > If you have two serial devices on the same line and one is just
> > lis
> If you have two serial devices on the same line and one is just
> listening while you work with the other, *can* that work, or would it
> just confuse things?
It depends on what you mean by "the same line".
For ease of language here, I'm going to assume that the devices are a
computer, C, and t
On Aug 18, 2016 12:08 AM, "Brent Hilpert" wrote:
>
> On 2016-Aug-17, at 8:26 PM, william degnan wrote:
> >>> No doubt you can get it to work, and it can be a useful ability in
some
> >>> situations.
> >>> But monitors and loaders tended to be written with different
objectives.
> >>>
> >>> Monitors
On 2016-Aug-17, at 8:26 PM, william degnan wrote:
>>> No doubt you can get it to work, and it can be a useful ability in some
>>> situations.
>>> But monitors and loaders tended to be written with different objectives.
>>>
>>> Monitors targetted interactive use, not receipt of back-to-back
> chara
> >
> > No doubt you can get it to work, and it can be a useful ability in some
> > situations.
> > But monitors and loaders tended to be written with different objectives.
> >
> > Monitors targetted interactive use, not receipt of back-to-back
characters,
> > which would be why you have to add per
- Original Message -
From: "Brad H"
To: "'General Discussion: On-Topic and Off-Topic Posts'"
Sent: Wednesday, August 17, 2016 7:02 PM
Subject: RE: SWTPC 6800
...
> If you have two serial devices on the same line and one is just listening
> while you
On Wed, 17 Aug 2016, Brad H wrote:
I think I'll have to figure out here how to get my laptop and the CT1024
working in tandem with this 6800. I mean, I could solve all of this by
simply using the PC terminal only, I know that works.. but, it just doesn't
have that vintage 'feel' to it that the C
Wednesday, August 17, 2016 3:27 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800
On 2016-Aug-17, at 11:48 AM, william degnan wrote:
>> Bill's method, of executing an M command from a text file, achieves
>> the same thing: filling memory.
>>
On 2016-Aug-17, at 11:48 AM, william degnan wrote:
>> Bill's method, of executing an M command from a text file, achieves the
>> same thing: filling memory.
>> Something it's missing versus the S-record/loader format method is a
>> checksum or any data check.
>> One may may not be concerned about l
>
>
>
>
> Bill's method, of executing an M command from a text file, achieves the
> same thing: filling memory.
> Something it's missing versus the S-record/loader format method is a
> checksum or any data check.
> One may may not be concerned about line noise over a short RS-232 line,
> but if the
esday, August 16, 2016 9:29 AM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: SWTPC 6800
>
> Yes, the monitor just sees bytes coming at it, it can't distinguish whether
> they're typed or coming from a host/machine, as long as the byte sequence
>
cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brad H
> Sent: 17 August 2016 00:20
> To: 'General Discussion: On-Topic and Off-Topic Posts'
>
> Subject: RE: SWTPC 6800
>
> Okay this is where I was getting a bit confused -- I had gotten the impression
> that
y, August 16, 2016 10:12 AM
> To: General Discussion: On-Topic and Off-Topic Posts <
cctalk@classiccmp.org>
> Subject: Re: SWTPC 6800
>
> Brad,
>
> You don't type in S1 records at the monitor prompt. If anything you'd
want to download a text file that simulates monit
ctalk-boun...@classiccmp.org] On Behalf Of william degnan
Sent: Tuesday, August 16, 2016 10:12 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800
Brad,
You don't type in S1 records at the monitor prompt. If anything you'd want to
download a text file th
On Tue, Aug 16, 2016 at 1:12 PM, william degnan
wrote:
> Brad,
>
> You don't type in S1 records at the monitor prompt. If anything you'd
> want to download a text file that simulates monitor commands to load
> memory, but it's a lot slower.
>
> I haven't been reading all of the posts in this th
pt. I'm
> reading and trying to figure out how to do that.
>
> Many thanks!
>
> Brad
>
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brent
> Hilpert
> Sent: Tuesday, August 16, 2016 9:29 AM
> To: General Discu
t.
Many thanks!
Brad
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brent
Hilpert
Sent: Tuesday, August 16, 2016 9:29 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800
Yes, the monitor just sees bytes coming at it, it ca
Yes, the monitor just sees bytes coming at it, it can't distinguish whether
they're typed or coming from a host/machine,
as long as the byte sequence accords with the Motorola S record format.
You can formulate your own S records and type them at the monitor, too.
On 2016-Aug-16, at 9:09 AM,
Another question if I may -- for a short TXT loader file.. could I manually
enter the information contained therein with my terminal? I'm just thinking
for a quick memory test, etc -- it'd be six of one half a dozen of the other
in terms of time to hook up a PC terminal and send the file..
If I
ith my MSI 6800.. and get it back
to stock config. The homemade monitor it has is useless!
Sent from my Samsung device
Original message
From: Brent Hilpert
Date: 2016-08-12 9:39 PM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts"
Subject: Re
On 2016-Aug-12, at 7:39 PM, Brad H wrote:
> There's no way to have both the MP-C and MP-S cards in the same machine and
> have the computer connected to one at a faster rate of speed is there?
As far the hardware goes, yes, you can have both cards in there operating at
different speeds.
Your pro
al Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Chris
Elmquist
Sent: Friday, August 12, 2016 4:01 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800
On Friday (08/12/2016 at 07:33AM -0700), Brad H wrote:
>
>
> I've a
Many thanks Mike!
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Mike Stein
Sent: Friday, August 12, 2016 6:45 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800
I'm still looking for my AC-30; as soon as I find it
I'm still looking for my AC-30; as soon as I find it it's yours. See ya
off-list...
m
- Original Message -
From: "Brad H"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Friday, August 12, 2016 9:17 PM
Subject: Re: SWTPC 6800
>
>
t
Date: 2016-08-12 4:01 PM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts"
Subject: Re: SWTPC 6800
On Friday (08/12/2016 at 07:33AM -0700), Brad H wrote:
>
>
> I've a question. I've now got my CT1024 working properly with my 6800.. is
: 2016-08-11 11:27 PM (GMT-08:00)
> To: "General Discussion: On-Topic and Off-Topic Posts"
>
> Subject: Re: SWTPC 6800
>
> Very interresting read, thank you Ethan.
>
> /P
>
> On Tue, Aug 09, 2016 at 10:55:54AM -0400, Ethan Dicks wrote:
> > On Fri, Aug 5, 2016
- Original message
From: Pontus Pihlgren
Date: 2016-08-11 11:27 PM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts"
Subject: Re: SWTPC 6800
Very interresting read, thank you Ethan.
/P
On Tue, Aug 09, 2016 at 10:55:54AM -0400, Ethan Dicks wrote:
> On Fri,
Very interresting read, thank you Ethan.
/P
On Tue, Aug 09, 2016 at 10:55:54AM -0400, Ethan Dicks wrote:
> On Fri, Aug 5, 2016 at 2:58 PM, Chris Elmquist wrote:
> > On Friday (08/05/2016 at 06:50PM +), tony duell wrote:
> >>
> >> Am I the only person who rarely, if ever, has RS232 problems?
Ethan Dicks wrote:
> And I am not aware of any USB serial adapters that do 110 bps.
> If anyone knows of any, post brand and model numbers.
Well, I know of a few "vintage" ones, and seeing that this is
"Classic computer talk"...
I use Belkin F5U103 USB serial ports. I got a stack of them at
a ha
to the terminal software.
Sent from my Samsung device
Original message
From: Brent Hilpert
Date: 2016-08-09 9:49 AM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts"
Subject: Re: SWTPC 6800
On 2016-Aug-09, at 6:47 AM, Ethan Dicks wrote:
On Fr
Off-Topic Posts"
Subject: Re: SWTPC 6800
On 2016-Aug-09, at 6:47 AM, Ethan Dicks wrote:
> On Fri, Aug 5, 2016 at 6:55 PM, Chuck Guzis wrote:
>> On 08/05/2016 02:15 PM, Brad H wrote:
>>> I have one more question for you guys -- I have a few CT-1024
>>> terminals and wo
On 2016-Aug-09, at 6:47 AM, Ethan Dicks wrote:
> On Fri, Aug 5, 2016 at 6:55 PM, Chuck Guzis wrote:
>> On 08/05/2016 02:15 PM, Brad H wrote:
>>> I have one more question for you guys -- I have a few CT-1024
>>> terminals and would really like this system to work with one of
>>> those. However, al
On Fri, Aug 5, 2016 at 2:58 PM, Chris Elmquist wrote:
> On Friday (08/05/2016 at 06:50PM +), tony duell wrote:
>>
>> Am I the only person who rarely, if ever, has RS232 problems?
>
> No. ;-)
No, but I used to manufacture sync serial hardware and have deep
knowledge of how async serial in gen
On Fri, Aug 5, 2016 at 6:55 PM, Chuck Guzis wrote:
> On 08/05/2016 02:15 PM, Brad H wrote:
>> I have one more question for you guys -- I have a few CT-1024
>> terminals and would really like this system to work with one of
>> those. However, all of the CTs are quite delicate and are set I
>> thin
no documentation on it at SWTPC.COM.
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brent
Hilpert
Sent: Friday, August 5, 2016 10:47 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800
Do you have some RAM at $A000+ yet?
That
Topic and Off-Topic Posts'
Subject: RE: SWTPC 6800
Gahh! So close!
https://drive.google.com/folderview?id=0B4pq0-BHd2x6WVFiZHdyMHBlNW8&usp=shar
ing
The prompt is totally what should be appearing, at least initially. But it
just keeps repeating itself over and over again and doesn'
Gahh! So close!
https://drive.google.com/folderview?id=0B4pq0-BHd2x6WVFiZHdyMHBlNW8&usp=shar
ing
The prompt is totally what should be appearing, at least initially. But it
just keeps repeating itself over and over again and doesn't stop.
Notes: I tried jumpering the DRC board to A000 properl
Sent: Saturday, August 6, 2016 8:24 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800
If you use a 16K board you'll want to config it to start at $8000, so that
it covers $8000-$BFFF.
If it goes higher than that it may end up in conflict with the ROMS and IO.
ged
> in.
> I suppose if there are bad RAMs on the DR board that'd do it though.
> Brad
>
>
> Sent from my Samsung device
>
> Original message
> From: Chris Elmquist
> Date: 2016-08-06 7:10 AM (GMT-08:00)
> To: "General Discussi
m: Chris Elmquist
Date: 2016-08-06 7:10 AM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts"
Subject: Re: SWTPC 6800
Simplifying the machine configuration can help too. You should only need
MP-A (CPU), MP-S (serial interface) and MP-M at $A000 if you have the
; board is set to.
> > Until I get an oscilloscope.. fooling around is about all I can do here.
> >
> > Sent from my Samsung device
> >
> > Original message
> > From: Chuck Guzis
> > Date: 2016-08-05 3:55 PM (GMT-08:00)
> > To: "General D
around is about all I can do here.
>
> Sent from my Samsung device
>
> Original message
> From: Chuck Guzis
> Date: 2016-08-05 3:55 PM (GMT-08:00)
> To: "General Discussion: On-Topic and Off-Topic Posts"
>
> Subject: Re: SWTPC 6800
>
> On 08/05
an oscilloscope.. fooling around is about all I can do here.
Sent from my Samsung device
Original message
From: Chuck Guzis
Date: 2016-08-05 3:55 PM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts"
Subject: Re: SWTPC 6800
On 08/05/2016 02
On 08/05/2016 02:15 PM, Brad H wrote:
> I think I will have to figure out how to do that. Additionally I
> have one of those PC based oscilloscopes on the way. I don't know
> how to use them 100% but I'm about to learn I guess. :)
>
> I have one more question for you guys -- I have a few CT-1024
C to match
the terminal? Is it necessary?
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Wayne Sudol
Sent: Friday, August 5, 2016 10:35 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: SWTPC 6800
Hi Brad. Troubleshooting baud rate an
Of Dave Wade
> Sent: Friday, August 5, 2016 2:42 AM
> To: 'General Discussion: On-Topic and Off-Topic Posts' <
> cctalk@classiccmp.org>
> Subject: RE: SWTPC 6800
>
> > -Original Message-
> > From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf O
bled.
> I'm certain cabling is an issue here. I get a bit dyslexic with pins and
> understanding how things change on a cable like a null modem.
>
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Fred
> Cisin
> Sent: Friday, August 5, 2016
On Friday (08/05/2016 at 06:50PM +), tony duell wrote:
Am I the only person who rarely, if ever, has RS232 problems?
On Fri, 5 Aug 2016, Chris Elmquist wrote:
No. ;-)
OK, that's TWO.
The rest of us are still struggling with our ignorance.
Your explanation of baud-rate and bit numbere/p
On Friday (08/05/2016 at 07:05PM +), tony duell wrote:
> >
> > > Am I the only person who rarely, if ever, has RS232 problems?
> >
> > No. ;-)
>
> I should have been more specific and added something like
> 'even though I have plenty of classic computers with RS232 ports,
> serial terminals
>
> > Am I the only person who rarely, if ever, has RS232 problems?
>
> No. ;-)
I should have been more specific and added something like
'even though I have plenty of classic computers with RS232 ports,
serial terminals, serial printers, and so on' :-)
-tony
On Friday (08/05/2016 at 06:50PM +), tony duell wrote:
>
> Am I the only person who rarely, if ever, has RS232 problems?
No. ;-)
--
Chris Elmquist
On Fri, 5 Aug 2016, Brad H wrote:
I'm certain cabling is an issue here. I get a bit dyslexic with pins and
understanding how things change on a cable like a null modem.
OK, I don't know what your level of knowledge is on it. Mine is NOT very
high, so please don't be offended if I tell grandm
> > I then tried 7 N 1 (that's how my CT1024 terminal is set up). This time I
> > got more consistent characters. If I hit reset, there is also a response.
>
> If and when you get consistent characters, no matter how wrong, then it's
> time to look at the bit patterns of what you get V what you
C logo on it so I don't think it was a third-party deal.
Chris
> Original message
> From: Brent Hilpert
> Date: 2016-08-05 10:52 AM (GMT-08:00)
> To: "General Discussion: On-Topic and Off-Topic Posts"
>
> Subject: Re: SWTPC 6800
>
&g
-- Original message
From: Fred Cisin
Date: 2016-08-05 11:25 AM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts"
Subject: RE: SWTPC 6800
On Fri, 5 Aug 2016, Brad H wrote:
> I then tried 7 N 1 (that's how my CT1024 terminal is set up). This time I
On Fri, 5 Aug 2016, Brad H wrote:
I then tried 7 N 1 (that's how my CT1024 terminal is set up). This time I
got more consistent characters. If I hit reset, there is also a response.
If and when you get consistent characters, no matter how wrong, then it's
time to look at the bit patterns of
om my Samsung device
Original message
From: Brent Hilpert
Date: 2016-08-05 10:52 AM (GMT-08:00)
To: "General Discussion: On-Topic and Off-Topic Posts"
Subject: Re: SWTPC 6800
On 2016-Aug-05, at 9:55 AM, Brad H wrote:
>
> 3) Ah, this may be part of my problem. I don&#x
On 2016-Aug-05, at 9:55 AM, Brad H wrote:
>
> 3) Ah, this may be part of my problem. I don't quite understand memory
> addressing yet. The instructions said you needed RAM at A000 if the 6810
> chip was disabled (which it appears to be, the correct trace is cut). My
> machine has 4 RAM boards.
Here is a picture/thread about the wiring of the MP-S and cable comparing
Teletype with RS232.
http://vintagecomputer.net/browse_thread.cfm?id=174
Here is a thread I made, plus a special file I created for loading TSC BASIC
http://vintagecomputer.net/browse_thread.cfm?id=416
hope this helps.
So here's a video I made of the terminal connected to my SWTPC. I set
hyperterminal to 8, N, 1. As you can see there's no action with the reset
button, but there is a random character on power up.
https://www.youtube.com/watch?v=dvT_KYyRVWo
I then tried 7 N 1 (that's how my CT1024 terminal is s
n cabling is an issue here. I get a bit dyslexic with pins and
understanding how things change on a cable like a null modem.
-Original Message-
From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Fred Cisin
Sent: Friday, August 5, 2016 8:52 AM
To: General Discussion: On-Topic and
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