On Tue, 26 Jan 1999, Basham, Richard R wrote:
> I have ported a few real time DOS programs to RT Linux and it is
> fairly easy once you have the RT Linux machine setup. I won't go into
> all of the details of setting up the Linux machine because there are
> many steps involved. However, the instructions are clear. Here is the
> basic outline of converting a real time DOS program. I won't go into
> the details because they a presented quite well in the examples
> provided with RT Linux.
Well, I have one RT Linux box already ;)
>
> 1. I am assuming that you have been using hardware interrupts to get
> 1ms periodic rates for the real time portion of your task. All you
> have to do is put the real time part of your dos code into an RT
> module. Creating an RT module is explained quite clearly in the
> examples provided with RT Linux.
Ok, which is better on your opinion to get an hardware interrupt or to
make a single periodic task ? In which case there will be the shortest
execution time ?
>
> 2. The foreground or non-real-time part of your program runs as a
> separate task in Linux user space. You can send messages between the
> foreground task using fifo's or shared memory.
The next question : when I do the critical job in rt-module and a fifo
handler is executed - what I will have ?
> >
Thanks for reply.
>
Rus
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