Re[1]: hardware driver

["Terry L. Ridder" <terrylr-at-blauedonau.com>]

hello;

i am not sure i totally understand what you are
asking.

1. take eric's code and integrate it into emc?
2. take eric's code, dac code, and encoder code, and integrate
   them?
3. take eric's code, dac code, and encoder code, and integrate
   into emc?
4. none of the above.

On Tue, 28 Nov 2000, Jon Elson wrote:

jon> 
jon> Hello, all,
jon> 
jon> I have essentially given up on Eric getting any more done on the
jon> driver for the new parallel port motion control hardware.  I wish
jon> he had the decency to just tell me he couldn't do any more.  I
jon> can understand that.  He did, however, do a great job of getting
jon> me a bunch of routines that replace the STG routines and would
jon> compile under a standard makefile for testing these components
jon> as user-mode code.  I had to take it from there, and now have
jon> it pretty well running using the diag program as was used with the
jon> STG driver.
jon> 
jon> If somebody could give me some help in making the transition
jon> from here to actually integrating the DAC and encoder sections
jon> with EMC, and faking out the digital I/O which doesn't exist yet,
jon> I'd be very greatful.  I think there is more hacking needed in
jon> makefiles than in the actual code at this point.
jon> 
jon> I had a few quirks that showed up when I put the encoder and DAC
jon> boards together on the PPMC motherboard, but I have understod
jon> the source of the trouble, and quick patches verify this.  The first
jon> motherboards will need some hackery to make things work
jon> properly, but there's plenty of room for a few wires.
jon> I made a quick and dirty little program that simulates the EMC
jon> servo control loop by reading and displaying the encoder count
jon> on 4 channels, and sending the least significant 16 bits of that to the
jon> respective DAC channel.
jon> 
jon> Jon
jon> 

-- 
Terry L. Ridder
Blue Danube Software (Blaue Donau Software)
"We do not write software, we compose it."

digging deep, i feel my conscience burn
i need to know who and what i am
this hunger jolts me from complacency
rocks me, makes me meet myself
----kendall payne---closer to myself---