Hi people,
I'm currently using a 386DX40 DOS box to control a bunch of stepper
motors. The program essentially consists of a routine hooked into the
timer interrupt which communicates with the user interface via global
variables.
Although all this is simple and works fine, I'd like to give RTL a try.
I've been planning to stuff the bowels of the 386 into the 19" cabinet
anyway and use it as an embedded system w/o keyboard & monitor.
RTL would give me the possibility to smoothly integrate this computer into
a TCP/IP network which is what I'd like to do. I need to know, however,
how much overhead RTL has as opposed to my good ol' DOS approach. Will I
still be capable to run my clock at up to 2000 Hz? The 386 doesn't have to
do anything besides negotiating between a simple protocol using TCP/IP and
the real time part of the program. The RT part consists of a routine that
does I/O on 8 ports and counts steps for each motor.
I know that I can get a P133 motherboard for free nowadays. Maybe it's
just mentality, but I'm opposed to that kind of overkill to do such little
a task.
Thanks for any help!
**Daniel
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