Re: CE virgin, looking for guidance in finding things

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Hi,

you can download a evaluation copy of platform builder at the microsoft
website. This version is free and works for 3 months. It gives you a idea
about the possibilities of wince as OS. If you find it usefull, you can
contact your local distributor of windows CE (if he hasn't contacted you
already), and see how things can be aranged. You can also ask for the
evaluation copy on CD or DVD, since it is a huge download. (and I am not
referring to a memory model..)

regards,

Luc

"ScottM" <scott@xxxxxxxxx> wrote in message
news:1150805603.082053.174430@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
OK, then, I'm at a bit of a loss. Maybe CE isn't what I'm looking for,
but what is? I've been looking at OS offerings for about six months
now. Here's what I'm looking for:

1. Something that is available at a hobbyist's price range. I don't
mind spending 200-300$ on on an OS *and* tools, including a C++
compiler. $1000+ to open simply is not an option.

2. Something with predictable latency. I need to run 20 times a second
(more often might be better), without noticable jitter. I'm happy to do
this by spinning in a wait loop for the unused time, broken out by an
interrupt setting a flag - that's the DOS way. (I'd be happier if I
could idle the CPU for my unused time). I recognise that ethernet and
serial traffic automatically contributes to jitter, but at my level of
traffic it shouldn't contribute enough to matter. Mostly, I want an OS
that just handles my I/O and lets me run - not something that has
daemons in the background, demanding time. I don't need disk I/O (after
boot, anyway), I don't need video (might be nice for debugging, but can
live without it), I don't need web services. Just sockets, serial, and
access to in and out instructions so I can talk to other hardware.

3. Something that will handle TCP and UDP. I'm happy to call a "pump"
function to keep the TCP state machine moving, as part of my idle time.

4. Something that doesn't get into memory models, a la DOS. I don't
need much memory, but I'd like it to be flat, so I can grow the code
without getting into a fistfight with compilers. I especially don't
want to find out that I need X's library for TCP, but gosh, that only
compiles under Borland, but Y needs Watcom, and...

As far as I can tell; DOS violates (3&4), unix violates (2), and
everyone else violates (1). Any hobbyists out there way to show me the
better way?



.

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