Re: Boot Loader for 3P+S on IMSAI

2017-01-11 Thread dwight 
Most of these BASICs required a delay on a return.

To make it more fun, it got longer the larger the program.

Dwight



From: cctech <cctech-boun...@classiccmp.org> on behalf of Win Heagy 
<whe...@gmail.com>
Sent: Wednesday, January 11, 2017 10:28:06 AM
To: cct...@classiccmp.org
Subject: Re: Boot Loader for 3P+S on IMSAI

Yes, I was able to run the echo characters test from the solivant site
as well as a couple other small upload tests, so I'm thinking it's a
delay issue or a configuration problem with the 3P+S and MITS BASIC.
Digging back into this on my IMSAI, I'm now remembering the
peculiarities of loading MITS BASIC when I was doing it on the Altair.
That picture will help.  I think I've already spotted something
without even having my actual card in front of me.
Thanks...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

Re: Boot Loader for 3P+S on IMSAI

2017-01-11 Thread Win Heagy 
Yes, I was able to run the echo characters test from the solivant site
as well as a couple other small upload tests, so I'm thinking it's a
delay issue or a configuration problem with the 3P+S and MITS BASIC.
Digging back into this on my IMSAI, I'm now remembering the
peculiarities of loading MITS BASIC when I was doing it on the Altair.
That picture will help.  I think I've already spotted something
without even having my actual card in front of me.
Thanks...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

Re: Boot Loader for 3P+S on IMSAI

2017-01-10 Thread william degnan 
On Tue, Jan 10, 2017 at 1:30 PM, william degnan 
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

Re: Boot Loader for 3P+S on IMSAI

2017-01-10 Thread william degnan 
On Tue, Jan 10, 2017 at 1:12 PM, Win Heagy  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

Re: Boot Loader for 3P+S on IMSAI

2017-01-10 Thread Win Heagy 
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"  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=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.

Re: Boot Loader for 3P+S on IMSAI

2017-01-10 Thread william degnan 
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

Re: Boot Loader for 3P+S on IMSAI

2017-01-06 Thread william degnan 
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"  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=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.
>
> Thanks, Win
> whe...@gmail.com
>