Arron McLaughlin wrote:
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I'm making a simple PDA for my science fair. Just has a Hitachi-based LCD and a keypad and a max232. (which ive used before).
I especially want to know how to use the built in flash memory for storage of preferences, very small files etc.


Arran,

LOCK THE DESIGN DOWN QUICK. You haven't time to explore the incredible numbers of variant 8052. You can use Serial memory for storage to get Non-volatile memory fast and cheap.

Have you got the display working yet ?

Get a '52 with ISP preferably. Atmel 89C51RD2 are good, Philips too. But do it quickly.

Steve