LCDOUT custom commands - how to?

[flotulopex]

Looking at your photos it looks as if Pin37 of the LCD R/W is connected via a blue/green wire to pin 13 of the PIC RB7. There also seems to be an additional brown wire flying off somewhere from this pin. Where does the other end of that connect to ?

It is the DATA wire (brown) coming from ICSP programmer (AN589). I've attached a "full view". Green LED on programmer is for power presence and yellow one (between both black relays) is for connection/disconnection of MCLR-DATA-CLOCK.

Wires:
black = GND (Vss)
red = +5V (Vdd)
yellow = MCLR
orange = Clock
brown = Data

One other point... I suggested putting LEDs on the PIC and observing it counting up to ensure that the count operated correctly. You said that you tested the pins with a logic probe, presumabley one pin at a time just to observe the two different states.

You're right. The LED you are talking about is there and as you suggest, I use it as an optical check. Do you mean I should connect more LEDs just to make sure it works fine?

Do you have access to a "normal" HD44780 display of any size just to test that your PIC is correctly configured. From what I have seen so far there shouldt be any real problems getting this display to work as it is 44780 compatible. If you try with a normal display and it still doesnt work then something isnt right with the PIC. Once you have that working it should just be a matter of swapping the displays.

Yes. As mentionned earlier, I made this check too and with my other displays (have lots of them), no problem!!