>I want to use FT811 & GT911 with LPC1768.
While I do not have support for LPC1768 (yet) and apparently the only readily available boards
are for 3D-printers which cost way more than I am willing to spend just to play with it for a bit.
And I just checked, at least PlatformIO does not support using the Arduino framework
with any LPC1768 board so I can not just add a board with it to platformio.ini and see it compile.
Regardless, as the Matrix Orbital capacitive touch EVE modules are using GT911 I have support for this in my code library:
https://github.com/RudolphRiedel/FT800-FT813In EVE_commands.c you find an implementation of what needs to done to patch a FT811/FT813 for GT911.
And the whole thing is highly portable, to adapt to LPC1768 a new section in EVE_target.h would be necessary.
Display timings are in EVE_config.h, this us where the EVE_HAS_GT911 define is set.