>At 15:34 16/05/97 -0400, Francesco Cembrola wrote:
>>I am a little confused on the purpuse of having the Data EEPROM.
>>Can someone explain the use of it?
>
>let's say you have some data that you still want to have when the pic is
>powered up the next time: how'd you do that? since it's some kind of
>"online" data, you can't put it in the code prom (you don't know it when
>programming it), and if you put it into ram, it's gone after power down. so
>you put it into eeprom, and bingo -- you have a non volatile read- and
>writeable memory.
>
>>Also can I have an exsample of how to write a value to the first location in
>>the above memory and then read it back again?

Which 'book' are you refering to below? And where might I find a copy of
this book?

>

http://ic.mankato.mn.us/~douglas

>Page 11-31 ff. of the 96/97 data book shows how to do it, they even have a
>code example there. (All theory, I'll have to check it by myself since I'm
>going to use it, but only in a couple of days.)
>
>I thought of writing some sample code here, but it's really all there --
>provided it works as written. For the first location you put 0 in EEADR and
>your data in EEDATA, and then do as they say.
>
>