10 Jan
2017
10 Jan
'17
10:12 a.m.
Took a little digging but I found the thread where you were talking
about port 20/21. I was able to configure the 3P+S card and run the
test from the solivant site successfully, but I'm not able to upload
basic. I have a couple more things to try, including setting a small
upload delay as Bill suggests on his page.
http://www.vintagecomputer.net/browse_thread.cfm?id=318
However, I'm thinking that I may still have a configuration issue on
the 3P+S card. But I think I'm getting close.
Win
--
The manual pretty much has the exact config for that
port 20 is all you
have to remember
Bill Degnan
twitter: billdeg
vintagecomputer.net
On Jan 6, 2017 7:41 PM, "Win Heagy" <wheagy at gmail.com> wrote:
I have an IMSAI that I am restoring. The basics
appear to be working
(front panel, CPU and RAM cards). I have a Processor Tech, 3P+S card
that is next on the list for testing. I have the manual, but the card
was not configured for RS-232...not sure what it was configured for
but it doesn't match anything in the manual. I plan to reconfigure it
for RS-232. I'm trying to locate boot loader code for that board to
allow serial uploading of files from a PC to the IMSAI? I have boot
loader code for a 2SIO board on an Altair that I restored awhile back,
and would like to find something similar for the 3P+S. I want to be
able to toggle in a boot loader routine and then initiate an upload
from the PC to IMSAI -- something similar to this
https://www.youtube.com/watch?v=YwC1T9oLK1U&t=212s
(at 1:10s in) but with a 3P+S board on an IMSAI.
Also, a picture of your RS-232 configured card and wiring of the edge
connectors would be helpful to make sure I get things right. Any help
is appreciated.
10 Jan
10 Jan
10:26 a.m.
On Tue, Jan 10, 2017 at 1:12 PM, Win Heagy <wheagy at gmail.com> wrote:
Took a little digging but I found the thread where you
were talking
about port 20/21. I was able to configure the 3P+S card and run the
test from the solivant site successfully, but I'm not able to upload
basic. I have a couple more things to try, including setting a small
upload delay as Bill suggests on his page.
http://www.vintagecomputer.net/browse_thread.cfm?id=318
However, I'm thinking that I may still have a configuration issue on
the 3P+S card. But I think I'm getting close.
Win
--
Did you verify "echo characters" works? There is a test program in the
solivant site that explains this. If so, then you very well may need to
experiment with character delays when you download BASIC. You can watch
the lights and see when the various loaders load, that might help give you
a clue where the failure point is.
The extra pointers I added were things I found useful, but I was using the
2SIO card.
b
10:30 a.m.
I believe this image is set to cause the 3P+S to act like a 2SIO card for
BASIC. NOTE: It's set for a 20 mA current loop Teletype. You're not
using a teletype, so ignore related jumpers (EIA vs. 20mA current
loop)...the rest should be correct for what you're trying to do.
b
10:30 a.m.
On Tue, Jan 10, 2017 at 1:30 PM, william degnan <billdegnan at gmail.com>
wrote:
I believe this image is set to cause the 3P+S to act like a 2SIO card for
BASIC. NOTE: It's set for a 20 mA current loop Teletype. You're not
using a teletype, so ignore related jumpers (EIA vs. 20mA current
loop)...the rest should be correct for what you're trying to do.
b
http://www.vintagecomputer.net/browse_thread.cfm?id=633
1:52 p.m.
When I first got my IMSAI, I had not documents. Many of the jumpers
were missing so I had to improvise. I had to write my own console in
so I chose a bit for the input buffer ready.
Of course, it was a different bit than every one else uses.
I run CP/M on it so my disgrace is berried in the low level code.
I've been meaning to patch it but then I'd have to modify all my
boot disk.
I guess, as long as it continues to work fine, what the heck.
Maybe adding a second jumper on is the trick.
Dwight
________________________________
From: cctech <cctech-bounces at classiccmp.org> on behalf of william degnan
<billdegnan at gmail.com>
Sent: Tuesday, January 10, 2017 10:30:19 AM
To: General Discussion: On-Topic Posts
Subject: Re: Boot Loader for 3P+S on IMSAI
On Tue, Jan 10, 2017 at 1:30 PM, william degnan <billdegnan at gmail.com>
wrote:
I believe this image is set to cause the 3P+S to act like a 2SIO card for
BASIC. NOTE: It's set for a 20 mA current loop Teletype. You're not
using a teletype, so ignore related jumpers (EIA vs. 20mA current
loop)...the rest should be correct for what you're trying to do.
b
http://www.vintagecomputer.net/browse_thread.cfm?id=633
3528
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billdegnan＠gmail.com -
dkelvey＠hotmail.com -
wheagy＠gmail.com