Use SD/MMC slot on Ethernet Shield for logging FAT

Forum 2005-2010 (read only) Hardware Interfacing
1

I want to write to log files in FAT filesystem using the official arduino ethernet shield.

With the modified library SDcard i can already read/write single bytes on an MMC card.

I tried also modifying the SDlog library (GPS datalogging shield for Arduino) but I'm stuck at card.open_filesys() with the message: "Can't open filesys".
Maybe it's just my card (32MB Nokia MMC) or the formatting.

The modified libraries are here: http://www.mediafire.com/file/wezd51nnoqf/SDcardSDlog.zip

The code I'm using to test SDlog is here: http://www.ladyada.net/make/gpsshield/GPSLogger_v3.pde
Remove the "!" in the following line: if (card.init_card()) {

2

The problem was the MMC card i tried first. With another one it is working.

SDLog example is now also included:
http://www.mediafire.com/file/mozyzgm5tjh/SDcardSDlog.zip

The hardware I'm using is the original ethernet shield without modifications.

3

hello, excuse me, I want to work with an sd card in the ethernet shield of arduino but your file was deleted by mediafire, please can you post again or send to me?

thank you.

4

It would be nice to get hands on that sd code.

:slight_smile:

5

There is another thread with SD code in it

6

here:
http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1257662425

7

here again my libraries:
http://www.mediafire.com/file/himqzny2nuz/SDcardSDlog.zip

maybe anyone can host is somewere permanently...

8

I'm not allowed to post a link on my first message, so...

9

Done :slight_smile:
http://iardsoft.com/SDcardSDlog.zip