Thanks to Jon, Gene, and Andy for your responses.

I've been using EMC for 3-axis milling, but I've
never had to get involved with HAL. I simply
used the step config wizard to set things up, and
everything worked.

I also set up the PWM spindle control in step config wizard.
Am I correct to assume that the PWM output is different
than the other outputs (like step X, dir X, etc.), in that I
*must* write hal code to get it to work?

Thanks!
Tony

----- Original Message ----- 
From: "Jon Elson" <el...@pico-systems.com>
To: "Enhanced Machine Controller (EMC)" <emc-users@lists.sourceforge.net>
Sent: Wednesday, March 09, 2011 12:23 PM
Subject: Re: [Emc-users] Help with PWM spindle control


> gene heskett wrote:
>>
>> It is my finding that the line sequence counts.
>>
>> IOW:
>>
>> S100
>> M3
>>
>> or
>> S2500
>> m3
>>
>> Always works.  You must set the speed at least a line prior to issuing 
>> the
>> M3 command.
>>
> Huh?  I have NEVER done this, I ALWAYS code it on the same line, either
> in my .ngc program
> or with MDI, and it always works.
>
> I agree, you can't do it in the reverse order, ie. "
> M03
> S1000
>
> That won't work, at least on some systems.
>
>
> Jon
>
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