diy vga signal from ram

[mike]

ok, here i go, perhaps i little clearer this time;

i have looked at vga timing specs and at max graphics mode res.
(640*480*256), i think the data sourcing (from ram), and subsequent signal
generation suitable for standard vga compliant monitor is possible with
cheap of the shelf components. i don't want to go down the road of pic or
fpga. i don't want to try to implement any hardware acceleration, just
output contants of ram to monitor. not tv.

replies already received suggest it is an acheivable goal, and continuing
research on the net has unearthed another similar and successful project.

it's just something i want to do for fun and i wonder if anybody has any
relevant experience they wouldn't mind sharing.

re. the article by enoch hwang in circuit cellar, i don't suppose anyone
could post a copy, i've paid my $1.50 online but the password popup didn't
appear to function.

thanks for any info received. apologies to anyone who finds my presence a
nuisance.

mike


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[Ian Stirling]

mike <mike@thing.com> wrote:

ok, here i go, perhaps i little clearer this time;

i have looked at vga timing specs and at max graphics mode res.
(640*480*256), i think the data sourcing (from ram), and subsequent signal
generation suitable for standard vga compliant monitor is possible with
cheap of the shelf components. i don't want to go down the road of pic or
fpga. i don't want to try to implement any hardware acceleration, just

How do you intend to fill the RAM?