Jinx wrote:

>>Can an interrupt that occurs while waiting for write completion
>>attempt to read from EEPROM or read/write program memory?
>>
>>
>
>AFAIK no manual or EEPROM d/s specifically says you can't
>read EE whilst a write is occuring. As the actual write on a micro
>is done in h/w on a single byte by a timer/charge pump and doesn't
>rely on or affect s/w, maybe you can read other locations during the
>~4ms that the write takes. I've never tried that and unfortunately not
>able to at the moment
>

AFAIK, changing EEADR during a write is not good!
IIRC, this one caught me last year. The code I posted
yesterday definately does work correctly and we have
hundreds of units out there working hard all the time.
David...

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David Duffy        Audio Visual Devices P/L
U8, 9-11 Trade St, Cleveland 4163 Australia
Ph: +61 7 38210362   Fax: +61 7 38210281
New Web: www.audiovisualdevices.com.au
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