AVR-Chat

At 01:16 PM 3/26/2006 -0600, erikc wrote:
>If anybody knows:
>
>[1] Where can I find a datasheet for this part.

Not much help there.

>[2] Something about creating graphics for print (as opposed to
>graphics for display).

It's unlikely you will have any sort of upper level graphics support 
available on the printer.  If you are lucky you will have access to dot 
level output rather than having to build up out of character output.

If you are familiar with low level bitmap graphics (not higher level 
support such as MS Windows) then it's fairly straightforward.  If your 
graphics are reasonably complex the usual method is banding where the 
graphics is regenerated for each band of memory/print output.
To determine the size of the bands you make a time space tradeoff.

For simple data plot graphs some shortcuts are possible but hey are 
basically variations on the above.

I've done this before for impact dot matrix printers.

Robert

" 'Freedom' has no meaning of itself.  There are always restrictions,   be 
they legal, genetic, or physical.  If you don't believe me, try to chew a 
radio signal. "  -- Kelvin Throop, III
http://www.aeolusdevelopment.com/