i ordered a Newhaven OLED 2x20 Display, it seems it doesnt work on my sammichFM.. it just stays black.
What am i missing ?
The pinout is good.
First did you check with standard 4 bit, without USE_8BIT_LCD_DRIVER option?
The controller is OLED-0010(WS0010) and seems to match HD44780 industrial standard BUT in the command table there's something which differs:
Page 22 of the controller datasheet
Maybe I'm wrong but this specific command is nowhere in the LCD initialisation:
;; notify that no graphical LCD is connected
bcf MIOS_BOX_CFG0, MIOS_BOX_CFG0_USE_GLCD