AVR-Chat

Dave Mucha wrote:
>In thinking about how to store vast quantiteis of datalogging data
>AND to port it EASILY to a PC, I was wondering if anyone has used one
>of those USB sticks they call portable hard drives or USB Pen drive
>or whatever.....

Interfacing an avr to any usb device requires the avr to act as usb host.
This again would involve enumerating the usb-bus, which by itself is a
complex task. Then the required drivers for the memory-key must be
implemented.
Even if you suppose that your key allows low-speed mode, this is still
1.5Mbit/s, which means bit-banging at 3Mhz minimum, so your avr would be
100% usb occupied.
IMHO the best option is to use an external usb-if chip - or a uc with
embedded usb, AT43* to stick to avr-based devices...

rgds
Øystein Fallo

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