Re: Apple Hi-Res RGB

[rubywand@aol.com (RUBYWAND)]

In article <4metm8$t0l@newsbf02.news.aol.com>, rubywand@aol.com (RUBYWAND)
writes:

>
>      Some line-grabbing scheme like David's might get the job done at
>much less cost. The hardware input does A/D and stuffs line info into a
>LIFO stack. The hardware output sends an 'off' line and then begins to
>pull line info off the stack, do D/A and send it. After 200 "off" and 200
>displayed lines, the hardware repeats the process except that displayed
>lines appear where 'off' lines were sent on the last pass. You would be
>interlacing two 200-line frames but, at 30Hz, it would look like one
>400-line frame.  

     Correction: if you build one of these use a dual port FIFO stack.
(The timing is tricky enough without starting with the wrong end of the
data stream!)


Rubywand