[Elecraft] Device data retention times

[n6hz]

Hi Len, 

That certainly used to be a problem with older windowed EPROMS.  I know that
it's possible for FLASH cells to flip from cosmic radiation, and cells can
go bad from repeated writing, but the bootroms we employ are loaded into
write protected memory and are usually never re-written.   

There is typically no way to re-flash the bootrom without a suitable
programmer (hardware).   In-field write protection of the bootrom is
critical for a robustness.  

Kindly, 

Paul




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