Ttelmah
Joined: 11 Mar 2010 Posts: 19375
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Posted: Thu Apr 02, 2015 9:14 am |
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Seriously, think again.
A single page picture needs more RAM than any normal PIC can manage.
Though it is possible to drive screens with more display points than you have memory for in the PIC, you need to remember that for more than the simplest pictures the processor needs to be able to to store at least part of the picture locally while calculations are done, and needs to do a lot of slow I/O if instead everything is done using the displays memory. It's going to be terrifyingly slow, and very limited in abilities.....
The code at:
<https://code.google.com/p/lpc1343codebase/source/browse/trunk/drivers/lcd/tft/hw/st7783.c?r=148>
Will translate to the PIC if required, but be prepared to run out of space if you start actually doing very much with the display. The touchscreen code is also available from the same library.
It's not what PIC's are good at. Seriously if I want more than a very few thousand points on a display, I either add a dedicated display controller, or switch to a processor that it better suited.... |
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