320x240x8 bits =76.8KB. About 18 images on a floppy. Is that enough for
your application?

Why not use one of the new 'flash' memory cards used for the
digital camera? 2,4,8 16 MB readily available and non-volatile.
Readers for PC's are readily available.
You'll spend a LOT less time getting that to
work than building a FD controller, and debugging the logic.
A FD is a DUMB device. YOU have to step tracks, format the data,
etc. If you add an external FD control chip, the task becomes easier,
but you still have to do a fair bit to get the data into the FDC
at the rates it requires. And you still have to worry about
formatting the data into a form the OS will read (directories, FATs,
etc.)

And don't use BMP fomat. It's horridly inefficient. You can probably
do some basic RLL encoding or other compression with the PIC before
storing the data.

Lea wrote:
>
>         Hi All, I'm doing a project that captures video to an still image
> and I need some place to store it (BW image, 320x240 bmp), And due to high
> price (EEPROM) and power problem (RAM) I was thinking to store data on a
> floppy drive, that also makes no necessary interfase to share info on a PC!!!
>
> but how to control it??? , anybody has some info, did it before?
> need I some SLDC transceiver to control head's?, how to position in the
> right track?, I have no Idea, if you have a sheet or if someone knows some
> place on the web that talks about it would be great!.
>
> thanks in advance.
>    Leandro J. Laporta (LU2AOQ)     mail: lu2aoq@yahoo.com
>  wrk: Arg. Assoc. for Space Tech.   ham: TCP/IP high speed group HSG
>

--
Robert.Rolf-AT-UAlberta.ca