I should have said in my original post- the final system needs to run on
Windows; a project contstraint i'm afraid.

I'd have used RT Linux at the drop of a hat, if I could. A great os.

-----Original Message-----
From: Mike Singer [mailto:msinger@POLUOSTROV.NET]
Sent: 13 August 2003 19:00
To: PICLIST@MITVMA.MIT.EDU
Subject: Re: [PIC] Real time operation?


Wouter van Ooijen wrote:
> > My question to you is whether the PIC is suitable for this
> > Real-time operation? Am I likely to be able to get a PIC
> > to sample at 50Hz with a 1% error margin of frequency? Or
> > should I be looking elsewhere for solutions?
>
> A PIC or any other microcontroller should be fine at such
> speeds. With a crystal you should be able to get a timing that
> is much more accurate than 1%. The PIC can just send its data
> to the PC, make sure the PCB has some buffering on the serial
> port.

Jon Hulatt's wrote:

"The main problem they're having is the way windows
works. It's not a Real Time Operating system..."

and:

"I had considered that a solution to the problem might be to
use a PIC."

Why PIC, why not "Real Time Operating system" such as Linux,
Win CE, Win Embedded. Was not it Wouter who asked about Linux
on SBC?

To make your choice between Linux and embedded Windows you
can read (beware, funded by MS):
"Total Cost of Development. A comprehensive cost estimation
framework for evaluating embedded development platforms."
By Jerry Krasner, Ph.D., MBA, July 2003.

Just randomly chosen phrase:
+++++++++++++++++++++++++++++++++++++
The average Total Cost of Development for embedded Linux designs is
substantially greater (3.17 times) than for Windows Embedded operating
systems, resulting from the fact that OEMs using Windows Embedded have
both a faster time to market (8.1 month average for Windows Embedded and
14.3 months for embedded Linux) and smaller average software engineering
teams (7.9 software engineers on average for OEMs using Windows Embedded
and 14.2 software developers for embedded Linux).
+++++++++++++++++++++++++++++++++++++

Mike.

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