Re: Flash memory?
How often is "continuously"?
Writing to FLASH is pretty quick, but erasing isn't (relatively speaking).
And furthermore, you need to erase an entire sector (maybe 4 KB) if
you are going to change even just one bit in it.
Using FLASH is never simple because it takes careful consideration of so
many things that can go wrong - e.g. what happens to your data if there is
a brown-out in the middle of a erase/write cycle? Was the data saved or not?
And so on...
It all depends on your specific application so I cannot give you an easy answer, sorry.
/Rambo