Are the PIC EEPROM endurance ratings based on the number of 1->0->1
cycles or on the number of writes to a word?

I modified the Linux picprg programmer by Brian Lane to skip locations
that are to be programmed to 0x3ff.  This greatly improved the speed
since it did not have to negotiate to program every location.  The speed
increase is of course even greater on UV-EPROM variants.  It did read
from the locations though, which I felt may have been superfluous.

But if endurance is based on number of writes to a word, then I have
substantially changed the pattern by not programming locations near the
end of code memory.

--
James Cameron    mailto:quozl@us.netrek.org     http://quozl.netrek.org/

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