the backlight doesn't turn on no matter what I do
I assume backlight pins on LCD are Vled-/Vled+
First I connected it directly to the ground/5v, then tried 3.3 v, then PIN6/PWM0 (BKL) pin of the LCD interface.
It does not turn on
I even tried to connect a simple led to the PWM0 pin, and it does not turn on either.
Though the display is working great when I connect it to another board (SSD1963 controller).
Some doubts: What is the purpose of PWRE, L/R, U/D pins ? I didn't connected them.
Another not-matched pin, named "DISP" is on LCD, datasheet says it's "Display On/Off" input pin. No other info is provided, so I assumed to pull it up to 3.3v line.
But still the display is dark.
What I may doing wrong?
PS: Just curious, how the board knows the resolution and timings of the connected display if I don't initialize it anywhere?