Re: opto22 AC5 IO card

[Paul <paul-at-bdiemc.fslife.co.uk>]

Hi Fred

IO_Exercise.tcl can be used for ANY IO address, not just the parallel port. 
IO_Show.tcl is about the only tcl/tk script that has port addresses hard 
coded in - But this would be fairly easy to change if you needed something 
different.

Modifying bridgeportio is a simple case of writing a basic set of IO routines 
to take advantage of the features of your particular card - Have a look at 
src/drivers/parport.c as a basic example. Once the IO functions have been 
coded, a small change to the Makefile in emcio so that your code is linked to 
bridgeportio is all that is needed.

When I need a sustained output from freqmod, I set the min and max limits to 
an extreme value - +/-1000000 is a typical value I use. Without being 
connected to real iron, EMC can be driven for miles without hitting the 
limits.

Regards, Paul.


On Saturday 15 March 2003 12:50 am, Fred Kehler wrote:
> Next step is the io section, I have a opto22 ISA
> card (AC5) that I would like to use for the io.  Is there any tcl code
> around for exercising this board?
> failing that I guess modifying tkio would be my next best option?
>
> also what is the simplest way to turn on the maximum step freq to study
> it for jitter etc...  i currently just send mdi commands but that only
> works for a few seconds at a time?

-- 

"To err is human...to really f*** things up requires the root password."
>From a collection of quotes at http://www.indigo.org/quotes.html