Aaron Ardiri wrote:
>
> i have a specific application to write that required 4bit grayscale
> (16 levels) - does anyone know of a good starting point to find
> information on this?
>
> has anyone coded any graphics libraries (like win2)? just asking
> before i end up doing it myself..
http://www.mot-sps.com/products/microprocessors/32_bit/mc68ez328.html
is as good a starting place as any. The data sheet (book) says
that only 2-bit grayscale is possible but some of the values that
can be set indicate that 4-bit grayscale is possible (as we all
know). Specifically, see section 12-LCD Controller and p.150 for
info on the LCD panel interface configuration (LPICF) register.
Of course, always check that you're working with an EZ328
before doing anything. (Has a reliable method of detecting
the EZ ever been posted?)
Bobby Kolev indicated that they are creating a grayscale
library, but I don't know if anything ever came of this and
if it'll support 4-bit grayscale. (Thread is "Best way to
Double-buffer a Screen?")
Regards,
Daniel.
