From: Dave H. <dhy...@gm...> - 2008-08-31 02:02:23
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Hi solarwind, On Sat, Aug 30, 2008 at 3:31 PM, solarwind <x.s...@gm...> wrote: > So how does the HD44780 controller work? So basically I have 8 bits that I > have to set, then pulse the clock when I have set the desired bits and the > character gets written? It's that simple? The HD44780 has both commands and data. The RS line is used to select between commands and data. The lcd-api.c file knows about the commands and the lcd-hal-avr.c file knows how to send the stuff to the robostix. You can create an lcd-hal-gumstix.c that manipulates the appropriate gpio lines. -- Dave Hylands Vancouver, BC, Canada http://www.DaveHylands.com/ |