Re: [Emc-users] ADC into EMC

[Kirk W. <kwa...@wa...>]

On Sun, 2007-12-30 at 10:11 -0600, John Thornton wrote:
> Kirk (and anyone else), I found this article http://linuxgazette.net/118/chong.html 
> about a simple ADC to parallel port circuit. Do you think that this could be used
> with EMC somehow? Maybe with a second parallel port for the ADC part. 
> 
> Thanks
> John

To get this to work with EMC would be very similar to what I am doing
with my DAC project, except this ADC has eight channels and the data
comes into EMC, rather than out. The challenge for the above ADC would
be in creating a Hal component. If you are familiar with C, the comp
tool makes this fairly easy. The EMC parport driver handles getting
access to the printer ports, so you don't need to worry about that. The
article publishes the C code so you would only need to massage it into
component form. After I get my DAC working, I will probably build a
single channel ADC, then maybe the above eight channel.

-- 
Kirk Wallace (California, USA
http://www.wallacecompany.com/machine_shop/ 
Hardinge HNC lathe,
Bridgeport mill conversion, doing XY now,
Zubal lathe conversion pending)