> Harold M Hallikainen <.....PICLISTKILLspam@spam@mitvma.mit.edu> wrote:
>
> > Anyone done any interface between a PIC and Smart Media?
>
> Harold:
>
> Do you need to be compatible with the SmartMedia Standard file
> format?  In other words, will your PIC write to SmarttMedia cards
> which will subsequently be read by other devices like cameras, PC
> SmartMedia readers, MP3 players, etc.?
>
> If so, I would STRONGLY recommend against attempting this with a
> PIC;
> the RAM requirements (16K for a logical-to-physical lookup table,
> plus another 2K or so for buffer/variable storage) will make it
> sorta
> difficult.
>
> If you have another processor (or a PC) doing all the thinking, or
> if
> you don't need to comply with the SmartMedia Standard, you COULD use
> the PIC as the electrical interface to the card.  You'd still need
> to
> buffer 512 bytes of data somewhere, though.
>
> If it were me, I'd use a different processor in any case.  If I had
> to comply with the SmartMedia Standard and I cared about throughput,
> I'd use either a VERY different processor (like a 100MHz+ ARM or
> equivalent) or dedicated hardware for certain functions (like ECC
> calculation and checking).
>
> -Andy
>
> === Andrew Warren -- aiwKILLspamcypress.com
> === Principal Design Engineer
> === Cypress Semiconductor Corporation
> ===
> === Opinions expressed above do not
> === necessarily represent those of
> === Cypress Semiconductor Corporation
>
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>