| LCDInfo.com http://forum.lcdinfo.com/ |
|
| Interfacing to display sram directly to processor possible http://forum.lcdinfo.com/viewtopic.php?f=9&t=1431 |
Page 1 of 1 |
| Author: | harilcd [ Tue Nov 29, 2005 19:35 ] |
| Post subject: | Interfacing to display sram directly to processor possible |
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 ) |
|
| Page 1 of 1 | All times are UTC + 2 hours |
| Powered by phpBB® Forum Software © phpBB Group http://www.phpbb.com/ |
|