Personally I do not see any reason why you could not use a decent graphics card as arbitrary wave form generator

Apr 29, 2012 22 Replies

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Jan Panteltje 14 years ago

On a sunny day (30 Apr 2012 07:42:48 GMT) it happened Jasen Betts wrote in :

card as arbitrary wave form generator.

and 8

I think there are 2 separate issues here. If you write a driver for a video card, and you write it with in mind the idea that it will be used to drive a monitor, then very likely, already in that driver, you will limit the minimum H and V pulse width that user space can set.

The next level up is then the user space program, I use xvidtune myself in X.

So one should really look at the driver code first for any range checks etc, before concluding 'the card cannot do it'.

In the DVB-T case he probably did not need zero sync width? Not sure.

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Jan Panteltje 14 years ago

On a sunny day (Sun, 29 Apr 2012 19:00:41 GMT) it happened snipped-for-privacy@eskimo.com (Mark Zenier) wrote in :

Oh yes, I remember Markus. He used to post to sci.crypt and I have some of his 'eavesdropping' papers. I remember discussing PMT tail lag correction in flying spot scanners with him.

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josephkk 14 years ago

graphics card as arbitrary wave form generator.

modulation

the TV directly.

Chinese s*it equipment,

you are in the category

Really. Gosh not having to be locked to a very short list of common = video frequencies seems like a good start. How about how do you get rid of the various sync times? Who knows what other limitations are hard coded into the raster hardware?

?-)

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