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Apparent N+ and N+2 I2C differences

I2C NFC

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#1 MarkNic

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Posted 10 May 2013 - 04:42 PM

Over in the Netduino/N2 forum several of us have been trying to get an Adafruit NFC shield working with Netduino using I2C.  After a lot of iterations it looks like there was success getting it working on a N+ board.  I, however, have a N+2 and cannot get the same source code to work (after changes made to reference the appropriate Netduino base assembly).

 

The other thread is @: http://forums.netdui...uit-nfc-shield/

 

We're hoping someone can provide some insight as to why the I2C code will work on the N+ board but not on the N+2.

 

Any help would be appreciated,

 

Mark



#2 Nevyn

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Posted 10 May 2013 - 04:52 PM

Over in the Netduino/N2 forum several of us have been trying to get an Adafruit NFC shield working with Netduino using I2C.  After a lot of iterations it looks like there was success getting it working on a N+ board.  I, however, have a N+2 and cannot get the same source code to work (after changes made to reference the appropriate Netduino base assembly).

 

The other thread is @: http://forums.netdui...uit-nfc-shield/

 

We're hoping someone can provide some insight as to why the I2C code will work on the N+ board but not on the N+2.

 

Any help would be appreciated,

 

Mark

Does your board have the latest firmware deployed to it?  There were some issues with the earlier firmware.  You can find out how to deploy the latest firmware by following the instructions in one of the threads pinned to the top of the N+2 forums.

 

Hope this helps,

Mark


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#3 yogotie

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Posted 16 May 2013 - 04:17 PM

I'm not familiar with the Adafruit NFC sheild however I have been able to verify that the firmware, 4.2.2.2, does not properly handle the I2C errata for this part.

 

You can look at my thread and my solution to this particular I2C issue with this board and see if this is of any use to you.

 

http://forums.netdui...c-lockup-issue/







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