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Altera_Forum
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14 years ago

Raw imagedata on flash to screen, which components do I need

Hello I have a small problem I'm using the 5MP camera and a LCD screen. The captured video is being showed on the screen very well. Now I want to use a kind of overlay for some buttons. Th...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

You'll need to define 2 screen buffers (probably both in SRAM), with the camera writing to one, and writing the overlay to the other.

When the LCD reads memory, you'll need to read both screen buffers and merge the pixel data (eg use the overlay if not some fixed value).

(You might manage to use address comparators to direct the LCD reads to alternate addresses - but that might be more complex.)