We wrote a small program to test 2 displays.
GLCD KS0108 and ST7920 parallel.
The first does not start, the second starts but works very slowly.
Both simulations work without problems, but they don't work on a circuit board.
The controller is 18F4620, we tried different clock speed configurations but to no avail.
If anyone can give you advice, what should be done to make the displays work on a real board.
thanks.
