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PICList Thread
'pip02 and pentium II'
1997\07\25@225654 by Lee McLaren

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Has anyone had problems with pip02 (and its device drivers) and a
Pentium II processor?
It used to work great with my dt001 but now since I have upgraded my
mother board the device drivers and pip02 both come up with "Runtime
error 200 at 0070:0029." It appears that the compiler used with the
programs my not like my configuration.
I know with a pent II I don't expect to get much simpathy.

Regards
Lee McLaren
ph 018 138682

1997\07\27@013808 by Lee McLaren

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Has anyone had problems with pip02 (and its device drivers) and a
Pentium II processor?
It used to work great with my dt001 but now since I have upgraded my
mother board the device drivers and pip02 both come up with "Runtime
error 200 at 0070:0029." It appears that the compiler used with the
programs my not like my configuration.
Can anyone recommend some good software to drive the dt001 to program
73's etc. that may work?
I know with a pent II I don't expect to get much sympathy.

Regards
Lee McLaren
ph 018 138682

1997\07\27@064900 by Antonio Vilches

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Try slowing your pentium down - there is a freeware routine available for
this - runs in the background.

Antonio

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1997\07\27@125204 by Glenn Johansson

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No, this was only the solution for getting Pentium's or faster to work on
versions previous to 1.14. PIP-02 version 1.14 and 1.18 works fine, even on
a Pentium II I would guess. Anyway, a timing problem would hardly cause a
"runtime error" on the PC.

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From:   Antonio Vilches[SMTP:antoniospamKILLspamVILCHES.IDISCOVER.CO.UK]
Sent:    den 27 juli 1997 12:35
To:     .....PICLISTKILLspamspam.....MITVMA.MIT.EDU
Subject:        Re: pip02 and pentium II

Try slowing your pentium down - there is a freeware routine available for
this - runs in the background.

Antonio

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1997\07\28@090243 by tefan Ranguelov

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Hi Lee !


Lee McLaren wrote:
>
> Has anyone had problems with pip02 (and its device drivers) and a
> Pentium II processor?
> It used to work great with my dt001 but now since I have upgraded my
> mother board the device drivers and pip02 both come up with "Runtime
> error 200 at 0070:0029." It appears that the compiler used with the
> programs my not like my configuration.



On Page 232 in the Juli c't (a big german magazine
for Computer Technic) thy report a BUG in the
Run Time Library of Programs, compiled with
Borland Pascal 7.0

At Start up, they calibrate a delay loop between
two timer interrupts. The Value is 16 bit and the
counter causes an overflow for > 196 MHz.

Maybe it is the same Problem.

They shoul'd have some Programms to solve
the Problem on  WEB-Server

http://www.heise.de/

- a modificates CRT.ASM
- a new .TPL
- Deleaytst : Analysis Programm

They also have described a method for patching an EXE file,
but changing the conter Value also changes the time generated
by the delay procedure.


Since i don't have a Pentium II, i can't try or verify
it.

St.



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1997\07\28@103641 by John Payson

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> No, this was only the solution for getting Pentium's or faster to work on
> versions previous to 1.14. PIP-02 version 1.14 and 1.18 works fine, even on
> a Pentium II I would guess. Anyway, a timing problem would hardly cause a
> "runtime error" on the PC.

Some programs time how many 1/18sec timer ticks are required to run a loop
for, e.g, 100,000 reps.  If it takes, e.g, 4/18 seconds to run 100,000
reps of the loop, then the loop should take 18000/4 reps per millisecond.
Unfortunately, such delay designs work very badly on newer machines:

[1] If the machine is too fast, it may take 0/18 seconds to run the loops.
   If this is not checked for in the software, the result will be a divide
   by zero [perhaps what you're seeing]

[2] Because of caching effects, the performance of the loop when delays are
   "needed" may differ substantially from its performance when the delay
   was measured.

[3] Under operating systems such as Windows, programs get bits and pieces
   of CPU time; thus, the apparent CPU speed may be highly variable.

> Try slowing your pentium down - there is a freeware routine available for
> this - runs in the background.

Most such routines that I've seen hog the CPU for a certain amount of time
each timer tick.  Unfortunately, this may have the effect of skewing the
program's timings severely.  From my experience, hitting a 16C622, 12C508,
or (probably) any PIC other than the 16x84 with an overly-long programming
pulse will often cause damage, eventually leading to failure; on my prog-
rammer, the excessive-length pulses were probably only a few ms.  Adding
a routine to "slow" the CPU by "50%" would add random 25ms delays to a
program that was running; this would increase substantially the risk of
slagged parts.

1997\07\29@062725 by Lee McLaren

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Thanks Stefan,
I found an english version of the files below at
www.mi.uni-erlangen.de/~heckenb/programs.htm#WWin
and it seems to apply to my problem, I now need to work out how to apply
the fix.
Thankyou all that  replied.

Lee McLaren.


Stefan Ranguelov wrote:

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