Can an 8052 derivative generate the RF output signal so that a screen is visible on, say, channel 3?
If the video could be generated by a dedicated '52 that would be awfully slick. If not, what kind of external IC would be appropriate to generate the video image?
Hi Craig,
Technically it is possible to generate video signals displayable on TV or VGA monitors. But the practical bottleneck is the speed of 8052 micros. You will need around 10-20MIPS processing for a fair resolution and color depth. 12-cycle derivatives are of no use here maybe 1-cycle cygnal or 2-cycle philips can suffice the need. Here is a link to web-page describing a simillar project & also details the video internals.
http://www.rickard.gunee.com/projects/...c/pong.php

http://www.rickard.gunee.com/projects/.../howto.php

There are no complex things in TV or VGA's in VGA you use 5 main singnals Red, Green, Blue, Hsync, Vsync signals. The color signals are 0-0.7V and defines the color strengths. H sync is a pulse generated for horizontal sync. & v sync for vertical sync. With Standard VGA the refresh rate is 60Hz. Thus you have 60 V-syncs in a second.
Hope it was helpfull.
Regards,
Prahlad Purohit