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Altera_Forum's avatar
Altera_Forum
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16 years ago

Memory usage

Hello! I am developing a video controller for a graphic, black&white LCD with 320x240 pixels with a minimum of two video memory pages. I was hoping I can use the internal memory bits availab...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

OK, I took your idea and made 9-bit bus. Now it appears I can use the parity bits, but it complicates a lot of things, unfortunatelly...

16-bit CPU writing 9 bit bus will take double time to update the screen.

Also the sequencer from 9 bit read to 4 bit LCD data bus will not be easy.

Is there any simpler way to use the parity bits from Cyclone?