On 06/04/2011 17:43, John van der Putte wrote:
> The display i have is: HG1286418C
> As far as I know the display has a S6B0107/S6B0108 (KS0107B/KS0108B)
> controller.
>
There is jalV2 code for that chipset  works at least on 16F and 18F. The=20
library does the CS for two halves

You often need a -VE supply for contrast pot. Some modules have on board=20
VEE generator (ICL7660 or similar).

Without at least slightly negative volts you don't even see the pixels=20
at power on.

I did also library in JAL for scalable analogue clock face, X Y graphs,=20
different size fonts, arbitrary lines, circles, rectangles, "buttons"=20
etc. block & pixel addressing without Shadow RAM

Pixel mode reads a byte, modifies it and re-writes.
The font uses byte at a time writes.

See the google code JAL Libraries.

Here is some out-of-date code (the GLCD libraries of JAL are now a bit=20
different

http://www.techtir.ie/node/1003419

http://www.techtir.ie/software/jal

http://www.techtir.ie/node/1003421


An application
http://www.techtir.ie/node/1003355

Old version of clock. I have a newer one someplace
http://www.techtir.ie/node/1003406

You can easily "translate" this to C or Assembler.

Code tested on 16F877A and 18F4550 with no changes.








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