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PostPosted: Tue Nov 29, 2005 19:35 
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Joined: Mon Nov 28, 2005 11:54
Posts: 6
hai iam new to this forum, and iam glad to see so many good people out there to share their knowledge.

Well i have a lcd module with built in controller(LC7981) +memory
192x128 dot matrix lcd

the microprocessor is taking too much time inorder to dump the display information to the lcd as a result of which the processors performance is degraded.

The increased time cause:
(1)i dont have direct access to sram, i have to access sram only throu' controller after passing suitable command words. (This has to be done for every 8 pixel of information) (192x128)/8 words has to sent. as i also have to take care of control signal i cannot use dma


If not is their any solution to solve this problem

Are there lcd modules available in the market which allows dumping of display information directly to sram rather than throu' controller (assuming sram to be dual ported )


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