Re: Signal generation on parallel port

From: Rich Walker (rw_at_shadow.org.uk)
Date: 11/19/04 

Date: Fri, 19 Nov 2004 16:38:07 +0000

"Norm Dresner" <ndrez@att.net> writes:

> <HLHL> wrote in message
> news:419ddcda$0$12900$afc38c87@news.optusnet.com.au...
>> I want to create square wave signal on parallel port with prorammable
>> frequency between 10-100Hz.
>>
>> Can one of the Linux guru guide me what is the best way of generation of
>> squeare wave with highest possible frequency stability regardless of the
>> process load on the computer?
>
> You might look into Real-Time Linux.

Alternatively, look at www.rtai.org.

RTAI will (just about) let you do this from user space.

It's a really nice piece of kit.

cheers, Rich. 

-- 
rich walker         |  Shadow Robot Company | rw@shadow.org.uk
technical director     251 Liverpool Road   |
need a Hand?           London  N1 1LX       | +UK 20 7700 2487
www.shadow.org.uk/products/newhand.shtml

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