Re: Should I use Linux to develop driver for specialized ISA card?

From: Fred (fred@arkansaswebs.com)
Date: Tue Sep 04 2001 - 10:26:40 EST


I'm curious, Alan, Why? I'm a hardware developer, and I would have assumed
that linux would have been ideal for real time / embedded projects? (routers
/ controllers / etc.) Is there, for instance, a reason to suspect that linux
would not be able to respond to interrupts at say 8Khz?
of course I know nothing of rtlinux so I'll read.

TIA
Fred

 _________________________________________________
On Tuesday 04 September 2001 10:15 am, Alan Cox wrote:
> > The moving parts of the plotter are controlled by ISA card that generates
> > (and responds to) interrupts on each movement or printing event.
> > The interrupts can be generated quite fast; up to frequency of 4kHz.
>
> Thats fine. The issue you might need to consider is how long you can wait
> between an irq and actually excuting the handler. If that is very tight
> then you may want Victor Yodaiken's rtlinux
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