You can find the HD44870 version I use here:
http://www.ubasics.com/adam/electronics/lcd/

The actual file is here:
http://www.ubasics.com/adam/electronics/lcd/cc5xlcd.c

It was made for a 16f8xx micro, and compiled with BKnudsen's CC5x (free)
compiler (http://www.bknd.com/ ), but the major portions should port over with
few, if any, problems.

At the very least you can see one way of doing things.

It is, however, a 4-bit interface, which may not meet your needs, but it is run
on a 4MHz micro.

-Adam

Tim S wrote:
>
> Greetings..
>
> I am a PIC newbie trying to get "Hello World" on an LCD display. The display
> is a Z4172 LCD from Dick Smith's in Australia, which uses a samsung KS0066
> controller.
>
> The KS0066 is an exact replica of the functionality of the Hitachi HD44780
> controller, which I think most of you would know of.
>
> I have scoured the net and encountered a huge mass of LCD projects, but I am
> yet to encounter a Hi-Tech C implementation of LCD interface subroutines for
> my setup, which works.
>
> My setup is a PIC16F84, with 4 Mhz crystal oscillator.
>
> I have also written two complete attempts at a basic set of driver routines,
> using the datasheet for the KS0066 as a guide, and paying special attention to
> the timing of the commands.
>
> If there is anybody with a functional 16F84, 4MHz, solution (preferably for
> the KS0066 controller, otherwise HD447840), could they please post a link?
>
> Otherwise, I suspect there is no fast solution.... If anybody is willing to
> look over the source and the KS0066 datasheet, I'd be grateful to email it to
> them.
>
> This thing has been a brick wall in my face for the past two weeks, any help
> would be greatly appreciated.
>
> Regards, Tim Sheahan
>
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