I want to build an small data logger based around ATMEL's 8535 (or one of the AVR Mega). I need to log around 300MBytes of data. USB memory sticks are cost effective storage mediums. Is there a simple way to interface a USB memory stick with an ATMEL microcotroller?
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The advantage of the USB memory stick is that many people have one and they are easy to connect to just about any PC. The SD/MMC is easier to connect to the AVR but will require a memory reader on most PCs.
There is someone which has a ready application for SD connection and sells the source code etc. for about $130 I think they use a mega128.
A part with external bus might be good if you want to use Compactflash.