Short answer - yes.
Long answer - yes, but. The flash appears as a perfectly normal filesystem
with files and directories you can read and write. However flash memory has a
limited life, and it's hard to get a straight answer as to EXACTLY how often it
can be written. Each block has a life of around 100,000 to 1,000,000 cycles
depending on manufacturer. In addition the file system used does 'wear
levelling' - repeated writes to the same logical block are directed to
different physical blocks to avoid wearing out of hot spots. If you are
writing data once a day, no problem. If you are saving data once a minute,
that's about 2 months unless the wear levelling helps. Wear levelling is less
effective on a nearly full filesystem as it has less free blocks to use as
write targets.
I am sure you will gets lots of other advice if you ask around.
--- In "B" <> wrote:
>
> This is going to sound elementary, but I need to verify. Can the flash be
> written to in an application to save collected data in case of a power
> failure?
> thanks.
>
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