andy@lasspvax.UUCP (Andy Pfiffer) (08/08/85)
[non-line]
I'm considering building a home-brew special-purpose graphics box. I used to
be an active hardware hobbiest, and I'd like to get back into it. I want
my box to have reasonable resolution, and must have at least NTSC video
output. While not in any way devoted to it, the NEC 7220 has come to my
attention. If anyone has info, pointers, experience, etc, on the following,
I'd really appreciate it. E-Mail or US Mail preferred.
1. Does NEC publish an application note for it? If they do, what is their
address and what do I ask for? I already have a spec sheet and pinout.
2. How hard is it to build a video shift register and output circuit for
this thing? Its "advertised" to generate 1K x 1K pixels...overkill for
NTSC. Can I get analog RGB out of it?
3. What other "off-the-shelf" graphics controllers are out there? Simplicity
is key. I don't have massive resources at my desposal.
Thanks in advance.
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