Re: Using alternative hardware (for servos).

[Dave Engvall <dengvall-at-charter.net>]

Hi Paul;
Thanks for the guidance. Will give it try sometime down the road. Am up to
my ears in alligators on the Mazak. It should be fun when I get it running
though. All of it takes time. I just got one of the resolvers swapped out
for an encoder. Only two more to go. Not much room to play with; I'm going
to try a modular encoder for the next one.

If someone is going to do a PCI replacement for the Dan's board they might
socket it for a 4 channel  DAC: then someone has the option of populating it
later on. 

Dave


On 12/19/02 12:38 PM, "Paul" <paul.corner-at-tesco.net> wrote:

> 
> 
> Hi Dave
> 
> Take the extstgmot.c source code, and using it as an example, add extDAC**
> functions to extsmdromot.c - Include the extAio** functions as well, but
> these can just be stubs that "return 0;".
> In the emcmot/Makefile, I'd suggest using stgmod.o for this as it is the
> first one in the list - Replace the reference to stg.o with dro.o and do a
> "make PLAT=$RTPLAT".
> 
> This will give you the basic analog outputs and encoder inputs and digital IO
> via the parallel port. The parport base address will be hard coded to 278 as
> defined in parport.h.
> 
> Some of this is documented in the source notes in emc/documents, and also in
> a pdf doc to be found at http://www.linuxcnc.org/BDI/index.html
> 
> 
> Regards, Paul.
> 
> 
> 
> On Thursday 19 Dec 2002 5:24 pm, Dave Engvall wrote:
>> The
>> code for the D/A is only a few lines but I didn't know enough to link it to
>> emc.
>