Hi Wayne,
> Do you mean here that the elapsed time as measured in the receiver is not one
>millisecond
> and that the sum of the deviation from the expected 1 MS period accumulates to a
>positive
> sum of errors when RTAI is the receiver and accumulates a negative sum of errors
>when rtl
> is the receiver (respondent)? Or does the receiver initially have no error and after
>a
> while start having a consistent error?
I never do any sum of errors. Initially there's no error. In fact, before starting
measuring,
I do some kind of synchronization between the two PCs, to make them start at the same
time.
That's why the receiver's first wakeup is quite similar to the sender's first sending
(difference about 5 us). But after a while, the difference between the sending time
and the
receiving time increases.
Victor advised me to switch the two PCs, what I actually did. Unfortunately, the
results
remain the same. So what I have to do is to use CLOCK_GPOS.
Sebastien
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