On Tuesday 11 March 2008, Jeff Epler wrote:
>On Mon, Mar 10, 2008 at 10:05:12PM -0400, Gene Heskett wrote:
>> This is something that I configured the last time I ran stepconf, so
>> theoretically, all I should have to do is hook it up and go unless theres
>> a bug in stepconf or I have some duff hardware. These are pins that have
>> not been previously utilized.
>
>It looks like this is a bug in stepconf. An incorrect value is written
>for pwmgen.0.offset. When the sample calibration values shown in
>stepconf are used unaltered, it's necessary to enter an RPM number of
>around S156000 to get PWM output.
>
There are 2 buglets then, Jeff. The other is that stepcpnf doesn't give you a
choice of mode/type for pwmgen. I had to hand edit that into the top of
my .hal file also. I guess it assumes most are running induction motor
driven spindles which aren't reverseable, but most of the VSR stuff is.
>For the time being, you can fix this by hand-calculating (or finding by
>trial-and-error) the right value and placing it in a custom.hal file.
>
We did this on IRC tonight, and a line in custom.hal seems to have fixed that
right up.
>I intend to fix this for the next bugfix release of emc2. In that case,
>you'll be able to correct your .hal file simply by re-running stepconf.
>
>Jeff
Thanks Jeff.
--
Cheers, Gene
"There are four boxes to be used in defense of liberty:
soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
It is wise to keep in mind that neither success nor failure is ever final.
-- Roger Babson
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