FlashMemory-PIC-USB-PC????

desertkids · Joined: 30 Nov 2008 Posts: 8

Hi, just one question here. Can I design my PIC like a USB pendrive?
Means I connect a flash memory with my PIC, then connect my PIC to
PC with USB. From PC can see and manage my storage, like copy or
delete a file that store in the flash memory. Thanks for those can give me idea.

ELCouz · Joined: 18 Jul 2007 Posts: 427 Location: Montreal,Quebec

If by flash memory you mean CompactFlash or MMC then yes of course but it will be painfully slow !

If you want to talk to the flash memory chip directly I think you will need a memory controller for that (too many I/O ? )
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Regards,
Laurent

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arunb · Joined: 08 Sep 2003 Posts: 492 Location: India

Better than CompactFlash use a microSD card, this is SPI based and is quite fast, also less number of I/Os are used.

You can find drivers for the microSD/ SD card, RS-MMC cards etc the code section of this forum.

The driver for the SD card in the PICC folder also works very well.

thanks
arunb