Alan Condit <[EMAIL PROTECTED]> writes:

After reading the documentation, I believe that I had mis-interpreted the
meaning of dirsetup and dirhold.
I tried these parameters for my drives:
steplen =               25000
stepspace =             25000
dirsetup =              2000
dirhold =               2000

I was using 50000 base period in my working configs and 150000 in the stepconf
configs. I discovered that the it didn't matter what values I put in. Emc2
changed them to the base period. When I did the halcmd save all, the values were
the same as before, the only thing that changed them was changing the base
period.  That doesn't seem to agree with the documentation.

The documentation says:
• (F L O A T) stepgen.<chan>.steplen – Length of a step pulse (step type 0 and
1) or minimum time in a given state (step types 2-14), in nano-seconds.
• (F L O A T) stepgen.<chan>.stepspace – Minimum spacing between two step pulses
(step types 0 and 1 only), in nano-seconds.
• (F L O A T) stepgen.<chan>.dirsetup – Minimum time from a direction change to
the beginning of the next step pulse (step type 0 only), in nanoseconds.
• (F L O A T) stepgen.<chan>.dirhold – Minmum time from the end of a step pulse
to a direction change (step type 0 only), in nanoseconds.

So are you supposed to be able to vary the values of these parameter to suit
particular drives or not?

Alan


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