Re: Slack Install

[Paul <paul.corner-at-tesco.net>]

Hi Pete

Any of the *.run files will work - It very much depends on which module is 
defined in the EMCMOT section.
steppermod.o is for plain old steppers. The output may be a little regged at 
certain velocities.
freqmod.o gives a smoother pulse than steppermod, but requires quite a bit 
more processor speed to get good performance.
smdromod.o uses the same core as freqmod, but uses a DRO card for positional 
feedback.
stgmod.o (and variants) are specifically for the Servo To Go cards interfaced 
to servos and encoders.
emcmotsim.o is a simulation module not intended to connect to the outside 
world.

the last one to mention is the ppmcmod.o which is for Jon Elson's parallel 
port interface cards.

As you can see, there are a number of alternative modules that can be loaded 
at run time, so by having different ini files, you can choose which one to 
use. Unless you intend to modify the source code, you should not need to 
recompile any of the modules.


Regards, Paul.

On Thursday 07 February 2002 4:48 pm, Pete Cook wrote:

> Several Questions -
> Which ???.run do I need to work with steppers?
> Has EMC been written so that the actual output code can be written in an
> installable module?
>     what I am thinking of is this - can I install EMC and then just change
> a single module at run time to run with servo or stepper without having to
> recompile the whole of EMC? This would make it easy and faster to work with
> different hardware.