Backlight draws too much current? By the way, I could not track this message thread back to anything without "Re:" before it - but what I am replying to looks like the original message, not a reply. Cheerful regards, Bob On Fri, 06 Aug 2010 09:09:30 -0400, "Carl Denk" said: > I am driving a 44780 LCD display 4 bit data mode with an 18F1320 with in= =20 > the common way, the 4 data signals are driven by RB4 - RB7. Using a=20 > PICKIT2 to program and debug the board. RB7 and RB6 are dual function=20 > also as PGC and PGD. I get an error when trying to program or debug with= =20 > this setup. The error goes away if I unplug the display ribbon cable. --=20 http://www.fastmail.fm - Choose from over 50 domains or use your own --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .