Re: Driver help

[Jon Elson <jmelson-at-artsci.wustl.edu>]

Hello,

I'm looking for someone that could offer some of their time to get
my Parallel Port Motion Control boards up and running with EMC
quicker.  I have suddenly been given 2 contracts to manufacture
some gear for serious money, and I will have less time to work on
this over the next couple of months.  I have the hardware completed,
and have been figuring out how EMC does the home search function.
I have made changes to the FPGA to do things so that it is closest to the
Servo-to-Go mode that EMC already uses.

But, I'm getting bogged down in the complexity of the many functions that
the stg.c module provides, and the huge number of procedures that are
mapped through stgmot.c

Is there anyone who would be willing to hack through the code, given
a hardware description of the boards I've designed, and a program that
exercises the boards in DOS/Turbo Pascal?

I still have to figure out how to use the EPP features that allow the
handshaking of the AddrStrobe and DataStrobe signals to work from
Linux (and RTLinux).  I have figured out how to do this in DOS,
by setting the port in the BIOS to ECP, and then using the ECP
standard features to set the port to EPP.  This seems a really roundabout
way to do things, but if it ensures hardware compatibility on most
motherboards, then it is the right way to go.  I have found some
links on the topic for Linux, but just haven't had time to read all this stuff.

I want to go on and design the step and direction frequency generator
chip, that would take the place of the servo system's DAC board for
stepper systems.

Any one want to volunteer?

Thanks,

Jon