Forum Post: RE: I2C on the TMDXEVM3358 - AM335x Evaluation Module

Hi,

You can use expansion connectors to connect your device to one of the I2C ports. The description of these connectors are shown here: 

http://processors.wiki.ti.com/index.php/AM335x_General_Purpose_EVM_HW_User_Guide#Expansion_Connectors

For easy startup you may use I2C1 port on Expansion Connector - EXP0, pins 23, 24. They have primary function of SPI0, but one of the secondary functions that can be pinmuxed there is I2C1 line SCL and SDA and also the EVM includes the pull up resistors on these lines for I2C functionality.

Please see also the EVM schematics sheets from here:

http://processors.wiki.ti.com/index.php/AM335x_General_Purpose_EVM_Board_Design_Files

See Baseboard files for expansion connectors.

In turns of software you can choose either using bare metal Starterware examples or to use linux SDK.

For starterware start here: http://processors.wiki.ti.com/index.php/StarterWare

http://processors.wiki.ti.com/index.php/StarterWare_HSI2C

For linux SDK start here: http://processors.wiki.ti.com/index.php/Sitara_SDK_6.00.00_Release_Notes

Also please download the latest AM335x TRM Rev.I and Datasheet Rev.F.

You can search Sitara wiki for info http://processors.wiki.ti.com/index.php/Sitara and also this forum.

Hope this helps,

BR,

Vidin