using SRAM bus for UTFT ?

Has anyone tried this ? (i'm digging into the internals as it type ..)
just using a single address line & an 8bit bus ?

the reason behind this - i bought a 7" TFT 6 mo. ago & tried to attach it for the first time yesterday
--& find out that 3 of the assigned data lines are dead on my DUE (ya likely killed them with 5v , sigh ... )
so rather than reassign the bits why not use External Memory Bus/Static Memory Controller Parallel library for Due External Memory Bus/Static Memory Controller - Arduino Due - Arduino Forum
should be faster right ??
bit of hacking up henning karlsen code but ....

this turned out to function quite well with single byte transfers on the order of 1/2 us
both reading & writing

it did take a bit of work to find the right parameters esp with this cheapo display
& trying to figure out some of the parameters of the ssd1963 ....

but it works !!

single byte transfers on the order of 1/2 us

Yikes that's slow, or is it determined by the display?


Rob

I have not pushed it
working with 6" ribbon cable & things tended to get messy at 100ns so i backed off
ssd1963 claims to work at 50Mhz or faster (at least this one had a 50mz clock )
... but i doubt i get close with long wires ..

6" ribbon cable & things tended to get messy at 100ns

OK, that explains it.


Rob