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'[OT]sort-of Re: Rs232 Monitor Programs and port se'
1999\09\13@145923 by Graeme Smith

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Recently, in my work with a local charity, I got access to an old eprom
programmer aimed at the 2700 series chips. Since I have literally hundreds
of these in storage, it seemed the right choice, to see if I could get it
working... Alas, although, it seems to do its internal workings correctly,
I can't seem to talk to it.....

The circuit is  the SPR 2700 ELEPHANT EPROM PROGRAMMER which was made
locally, and there is an indication that it was made by Pembina
Automation, which might or might not be a subsidiary of Pyramid
electronics.

(I also heard it might be a subsidiary of Sherrex electronics, which is
either a sister company, or a competitor, to pyramid according to their
www pages.)

In any case, while it will program an eprom, and test to see if it is
valid for any of the 12v Eproms, it doesn't seem to want to talk to my
PC.

Ideally, I would like some sort of software that would alow me to sense
the nature of the communications it is trying to send, so I can
reciprocate and read the data, or the actual original driver/software so
that I can read/write to it.

I get the feeling that the circuit is not presently being supported by
its parent company.... which is not surprising at all, little that gets
trashed, is.

So if anyone is familiar with this circuit, or knows someone who used to
work with it, and might have the software to drive it, please let me know.
I figure it is the minimal system I need, to be able to impliment a
parrallel version of my greylogic device for evaluation. Having a number
of old 27XXX devices, I would like to experiment with them before getting
more expensive devices such as flash eproms.

                               GREY
GRAEME SMITH                         email: spam_OUTgrysmithTakeThisOuTspamfreenet.edmonton.ab.ca
YMCA Edmonton

Address has changed with little warning!
(I moved across the hall! :) )

Email will remain constant... at least for now.

1999\09\13@191246 by William K. Borsum

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At 12:54 PM 9/13/99 -0600, you wrote:

In response to my prior inquiry, MANY THANKS to all who responded....
Unfortunately, I had to pick one to use, and the best so far in terms of
watching what is going on with minimum hardware, learning curve, etc. is

COMLITE32 from <http://www.rtcomm.com>.

Free, runs under windows, and monitors port activity on the same
computer--so you can be running your application code, and watching the
data going in and out of one or two comm ports on the same machine, in hex.

Many of the others ran a very close second, but this one gets my vote.

Caveat:  It is a beta release, but seems to work fine--so far.

kelly


William K. Borsum, P.E. -- OEM Dataloggers and Instrumentation Systems
<.....borsumKILLspamspam@spam@dascor.com> & <http://www.dascor.com>

1999\09\13@192522 by Andy Kunz

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Kelly,

I recall you saying the a PC won't handle 115200 well.  I'm using it in my
current app between a PC running DOS (I wrote the ISR) and a Win95 230 MHz
laptop.  No problems.

Andy

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1999\09\14@015135 by William K. Borsum

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Andy:

Actually, I've got it running too--between to Win98 systems running 133 and
200 MHz.  Was remembering an old system (286-33 mHz days) running DOS.  Had
to do a custom ISR for that as well.  Was for downloading real time heart
sounds from an electronic stethoscope from the Space station/shuttles.
VERY interesting project ten years ago.

K.


At 07:24 PM 9/13/99 -0400, you wrote:
{Quote hidden}

William K. Borsum, P.E. -- OEM Dataloggers and Instrumentation Systems
<@spam@borsumKILLspamspamdascor.com> & <http://www.dascor.com>

1999\09\14@121755 by Andy Kunz

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My DOS machine is a 486SX/100.

The ISR isn't anything fancy - it's all in C.

Andy

At 10:50 PM 9/13/99 -0700, you wrote:
{Quote hidden}

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1999\09\15@135154 by paulb

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Graeme Smith wrote:

> In any case, while it will program an eprom, and test to see if it is
> valid for any of the 12v Eproms, it doesn't seem to want to talk to my
> PC.

 It's probably got the Borland speed bug.  Try a slow computer or
*someone* will find you the link to try the software patch.
--
 Cheers,
       Paul B.

1999\09\16@022815 by Graeme Smith

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Borland Speed Bug?

I am using a 486dx66 from Compaq
and an actual IBM 350-P133

would the speed bug be in my computer, or in the software I am using to
read the port?

I tried both procomm for windows, and an early datamon evaluator with no
success.

I have a freind that claims to have developed a frequency counter for his
C64, would it make it easier to figure out if I could sense the Baud Rate?

                               Grey

GRAEME SMITH                         email: grysmithEraseMEspam.....freenet.edmonton.ab.ca
YMCA Edmonton

Address has changed with little warning!
(I moved across the hall! :) )

Email will remain constant... at least for now.


On Tue, 14 Sep 1999, Paul B. Webster VK2BZC wrote:

{Quote hidden}

1999\09\16@144110 by Nigel Goodwin

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In message <EraseMEPine.A41.3.95.990916002023.45294B-100000spamfn2.freenet.edmonto> n.ab.ca>, Graeme Smith <RemoveMEgrysmithEraseMEspamEraseMEFREENET.EDMONTON.AB.CA> writes
>Borland Speed Bug?
>
>I am using a 486dx66 from Compaq
>and an actual IBM 350-P133
>
>would the speed bug be in my computer, or in the software I am using to
>read the port?

The bug is in the DOS Borland compilers, when used on a very fast
machine (400MHz PII upwards?) the counter used in the delay() procedure
initialization overflows to more than 16 bits. This would be fine, as
the register used is 32 bits wide, but the routine copies the resulting
value to a 16 bit register - this causes the 'error 200', which actually
means 'divide by zero error'.

Your two machines are much too slow to have the problem, AFAIK it only
happens with Pentium II and III machines, and not on the slower Pentium
II machines either.

There is a patch available for programs written using Turbo Pascal 7,
it's available from my website, I presume there are similar patches
available for use with Turbo C programs?.
--

Nigel.

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