Re: PC Vector-generator card

Clay Cowgill wrote:
>
>
> Hmmmm. Well, I can put off the decision for a while. I want to just be
> able to generate vectors on my o'scope first. ;-)
>
> -Clay

A while back, I hooked up my sound card to my scope, and wrote a WIN32
program to output vector data in packaged in sound data buffers. It was
actually wildly successful. The program drew a 3D rotating cube.

I never got around to hooking up a second sound card for Z axis control,
but it would have worked well, I'm sure.

One problem I had was that sound cards are built to filter the DC
component out of the signal, so I was unable to just draw a dot in some
random location. I had to make sure the signal had a large AC component
for things to look correct.

Anyway, it was just a fun experiment.

Joel-
Received on Tue Dec 9 12:43:07 1997