I am not using video drivers, just vesa, and it does the same with
external PCIe VGA which I use now :-), OK, I thought it might be
something with stepgen - I looked at the source and there are some
initialization values which do not matter at runtime - so I think
perharps something re-initialised the stepgen module or something
else. I did enough MCU programming, so that is my guess. In the
stepgen, I use 3x TYPE 2 (quadrature) stepgen outputs.
piece from stepgen.c:
/* periodns will be set to the proper value when 'make_pulses()' runs for
the first time. We load a default value here to avoid glitches at
startup, but all these 'constants' are recomputed inside
'update_freq()' using the real period. */
old_periodns = periodns = 50000;
old_dtns = 1000000;
BTW, I plan to find some help to write more faster stepgen modules...
to make more microsteps per second.. like up to milion or so.
On 12/24/06, Chris Radek <[EMAIL PROTECTED]> wrote:
> On Sun, Dec 24, 2006 at 05:17:36PM +0100, Mario. wrote:
> >
> > It is almost instant with the slower CPU configuration, you jut move
> > the slider 5% up or down and he message pops.
>
> I suspect your video. If you are using onboard video, plug in
> a card. If you are using the nvidia or ati binary drivers, try
> the vesa driver. See here for more information:
>
> http://wiki.linuxcnc.org/cgi-bin/emcinfo.pl?TroubleShooting#Unexpected_realtime_delay_check_dmesg_for_details
>
> Chris
>
>
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