> -----Original Message-----
> From: piclist-bounces@mit.edu [mailto:piclist-bounces@mit.edu]On Behalf
> Of James Newton, Host
> Sent: 06 November 2006 19:31
> To: 'Microcontroller discussion list - Public.'
> Subject: [PIC] Interfacing a PIC to a microSD or TransFlash card
> 
> 
> I've been doing some work for a guy who makes data loggers and we are
> looking at a new memory card for the loggers. I found these microSD cards
> and I have to say I'm really impressed:
> 
> - 512MB for $18, 1GB for $30. 2GB for $90. Cost is low because they have
> been made in extreme volumes.
> - Unlikely to go away since they are used in most cell phones as the "sim"
> card or more: the new Chocolate phone uses a 2GB version for 
> internal music
> storage.
> - About the size of your thumbnail.
> - Plugs into a standard SD slot with a mechanical adapter.
> - Same SPI serial or nibble parallel interface as SD cards.
> - Easy USB interface via "expandable" memory sticks.
> - High reliability connectors that hold the entire card down at reasonable
> prices.
> 
> Just seems ideal for large memory applications in the embedded world.
> 
> I'm wondering why I don't find more mentions of them on the net. 
> There don't
> appear to be any hobby projects (or maybe I used the wrong 
> keywords). What I
> have found so far is here:
> http://www.piclist.com/techref/mem/flash/microSD.htm

microchip has example code for talking to standard SD/MMC cards, presumablly it would work with theese as well.




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