Re: Linux serial port dropping bytes
- From: John Devereux <jdREMOVE@xxxxxxxxxxxxxxxxxx>
- Date: Sun, 06 Apr 2008 21:34:10 +0100
Didi <dp@xxxxxxxxxxx> writes:
Albert van der Horst wrote:
...
I've programmed the delay line software of ESO telescope array in
Paranal Chile. 1000 interrupts per second, with a mirror that had to
be at the correct nanometer at the correct microsecond. (14 nm RMS)
Does that count as experience?
....
The system spent a considerable part of its time (>10%) in the highest
priority ISR.
So the rest of your system has been fine with 100mS latency (10% of 1
second).
Do you call this real time? I certainly do not.
Just because 10% of 1 second is 100ms does not mean that is the
latency! Where did that come from? Why not say 10% of 1 microsecond is
100ns. Then the latency is better :) !
More likely it is something like 10% of 1/1000 seconds, or 100us. But
of course it could be anything without knowing the details.
[...]
--
John Devereux
.
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