mini12864 + marlin

Hi, How is it possible to get following combination to work?
BTT MINI 12864 V1.0 display with SD + MKS GEN L 2.1 + marlin 1.1.9.1

Cables are turned 180deg on MKS GEN L and REPRAP_DISCOUNT_SMART_CONTROLLER / LCD 2004 works fine.

Only two leds and maybe lcd backlight turns on in MINI 12864 when REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER is enabled.

That screen seems to be a clone of a FYSETC_MINI_12864_2_1

so try enabling #define FYSETC_MINI_12864_2_1

Manual confirms it [github.com] (but they lost all the _ in the name)
also you shouldn't need to set NEOPIXEL_LED as marlin does this for you.

NB this board has software controlled contrast
Often on first setup you cant see anything use gcode M250 [C] and save with M500 then you can see the lcd, and use it to set contrast

managed to find one solution here:
[wiki.fysetc.com]

I enabled #define MINIPANEL and followed steps 1, 2 (V2.1 option) and 4

display and sd works!

Edited 1 time(s). Last edit at 06/05/2021 02:45AM by Hexentric.