Firefly Open Source Community

   Login   |   Register   |
New_Topic
Print Previous Topic Next Topic

I2C interfacing with AIO 3399J

80

Credits

0

Prestige

0

Contribution

registered members

Rank: 2

Credits
80
Posted at 3/5/2018 23:15:49      1#
There is 8 I2C  on the AIO.  Each can control different parts of the circuits. What are you looking to control ? The I2C available to the user (on J47)  on the AIO carrier board is the I2C4.  I2C4 is mosly used for the USB switch, the touch panel some encryption.
Reply

Use props Report

80

Credits

0

Prestige

0

Contribution

registered members

Rank: 2

Credits
80
Posted at 3/9/2018 11:01:27      2#
Yes you could use I2C4 to connect a GPIO expender - I dont know if there is any driver available but you could write your own. Just make sure the IC suport 3.0V i2C signaling (there is very good chance it`s supported)
Reply

Use props Report

You need to log in before you can reply Login | Register

This forum Credits Rules

Quick Reply Back to top Back to list