Re: Poll preliminary results...

>What kind of displays would you all want in a vector monitor tester?
>Crosshatch only? Maybe a "plus" sign for convergence? It might be
>do-able for not too much money with a PIC and a little dual-serial DAC
>or something.

Only if you switch the voltage on a capacitor or something (similar to the
Cinematronics design), if you try to draw the lines one step at a time you run
into the same speed issues that have been discussed earlier.

I did figure out at one time that you could do a 1024 x 1024 vector generator
using one of the 50mhz scenix(sp?) PIC clones if you used external counters and
parallel DACs. I think you had something like 15 instructions to do the main
draw loop.

Since the Cine->WG board would basically be a full vector generator, a nice way
to come up with a vector tester would be simply to drive the digital inputs of
this board with a PIC processor.

>Think it needs three outputs for color? (or just one that
>you could switch from gun-to-gun? hard to do convergence that way
>though).

Or three switches that allowed you to control each gun separately...

-Zonn

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Received on Fri Aug 21 17:15:48 1998