Re: What is preferable for storing parameters FLASH or on-chip EEPROM ?

Atmel's AT89C51ED2 cannot be operative when programming the code
which is in Flash, but when programming byte or page as part of data
the software waits 10msec meaning that no other code can be executed.
No need to run a patch from RAM.

EEPROM has an advantage over Flash in that you can write
the byte to EEPROM and continue to execute the code(the next write
will have to check the BUSY flag and if busy to wait until
programming is done).

Nothing critical in my system if for writing log parameter from time
to time the system will be disabled for 10 msec. Not so nice,
but tolerable.
Still I think the Flash has advantage over EEPROM to hold data.

Yossi

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