JLS

Better VGA resolution possibility question ?

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Hi all

 

Is possible make VGA driver for papilio one 500 with better resolution ? like 320x240  monochrome ?

 

How memory is disponible Spartan 3E-500 ?

 

Thanks info about it

 

Kamil

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Better resolution than what? The most common that I've seen used with FPGAs is 640x480 with the Papilio VGA wings capable of up to 4096 colors. While VGA does include a 320x200 resolution, that hasn't been common since the era of DOS games.

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If you want to do monochrome bit-mapped graphics on a -500 part you have 368,640 bits of block RAM, so just enough for 640x480.

 

If you want to do tile-based graphics (e.g. have a choice of 256 x 8x8 tiles, with 8 bit colour per pixel) You could use 16,384 bytes for the tiles, then another 14,400 bytes to hold a 160x90 map of what tiles are in use, giving a 256 colour 1280x720 output.

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