Unable to use Ethernet and SD at the same time on DUE, but on UNO it works fine

Hardware Arduino Due
1

I found a set of tutorials including this one at Arduino SD Card Web Server using Ethernet Shield and loaded it straight into a UNO, where it worked fine with a genuine Arduino Ethernet shield. If I load exactly the same code into a DUE, it does not work.

I tried adding some serial strings to help debug, and it looks like it runs the 'setup' routine fine, and starts the 'loop' routine ... but it never detects a client calling into it, so never replies.

Any ideas ?

2

Hello nakedsensor,
UNO and DUE have different micro-controllers (AVR and SAM3X), thus, internally they work also differentlyand use different libraries. Please, look at the following thread.

http://forum.arduino.cc/index.php?PHPSESSID=i72gnopc96nc0rehg2698fphg1&topic=189348.msg1402905#msg1402905

There, in my reply #7 you will find a code that works OK for a DUE and an Ethernet shield. Good luck!
-P

3

Thanks Palliser !

I may stick with the UNO for this project anyway, but at least I understand that it is not my fault !