Michael Watterson wrote 2011-04-06 21:24:
> On 06/04/2011 17:43, John van der Putte wrote:
>> The display i have is:

>> 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
> library does the CS for two halves
>
> You often need a -VE supply for contrast pot. Some modules have on board
> VEE generator (ICL7660 or similar).
>
> Without at least slightly negative volts you don't even see the pixels
> at power on.
>
> I did also library in JAL for scalable analogue clock face, X Y graphs,
> different size fonts, arbitrary lines, circles, rectangles, "buttons"
> 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.

I've seen a few KS0107 displays where the R/W line wasn't
out in the connector. So "write-only", in other words.

B.t.w, seems to be this LCD module :
"http://www.voti.nl/shop/catalog.html?LCD-19"
Double controller modell with R/W on the connector.
--=20
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