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1  Using Arduino / Storage / Re: FAT16 vs FAT32 on: October 24, 2012, 11:08:07 pm
And when was the last time you saw an SD card as small as 2GB?
2  Using Arduino / Storage / FAT16 vs FAT32 on: October 24, 2012, 01:20:09 pm
http://arduino.cc/en/Reference/SDCardNotes
Says:
"The library supports the FAT16 and FAT32 filesystems, but use FAT16 when possible."

What is the reason for this? Is there some problem with using FAT32?

3  Using Arduino / Programming Questions / Re: Reading or writing all pins of a port in one instruction? on: July 16, 2011, 10:35:17 am
Thanks, that looks like what I wanted.
4  Using Arduino / Programming Questions / Reading or writing all pins of a port in one instruction? on: July 16, 2011, 09:44:40 am
The Arduino IDE emphasizes reading or writing individual pins, but I'd like to read all of the pins on a port at the same time. I know the chip can do this, but I don't know how to do it from C. Also, is there a handy way to set up all the pins on a port as inputs or outputs rather than using Pinmode on each pin? (Again, from C-- I know it can be done in assembler).

I'm using the Atmega43u4 breakout board from Adafruit, using the slightly modified version of Arduino 21 on this page:
http://ladyada.net/products/atmega32u4breakout/

I want to read data from ports D and F, and then write it to the USB port. (I know two bits of port F are not available on this chip, but that's OK).

It seems like this would be an obvious question, but I haven't seen it discussed anywhere.
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