Please note that User Registration has been temporarily disabled due to a recent increase in automated registrations. If anyone needs an account, please request one here: RequestAccount. Thanks for your patience!--Wmat (talk)
Please email User:Wmat if you experience any issues with the Request Account form.

Difference between revisions of "Interfacing with I2C Devices"

From eLinux.org
Jump to: navigation, search
m
Line 1: Line 1:
This page is meant to provide some basic information about how to interface with [http://en.wikipedia.org/wiki/I%C2%B2C I²C] devices through the /dev/i2c interface.  The I²C bus is commonly used to connect relatively low-speed sensors and other peripherals to equipment varying in complexity from a simple microcontroller to a full-on motherboard.  I²C is extremely popular due to its ease-of-use and ability to control multiple peripherals while utilizing only two pins on the host controller.   
+
This page is meant to provide some basic information about how to interface with [http://en.wikipedia.org/wiki/I%C2%B2C I²C] devices through the /dev/i2c interface.  The I²C bus is commonly used to connect relatively low-speed sensors and other peripherals to equipment varying in complexity from a simple microcontroller to a full-on motherboard.  I²C is extremely popular due to its ease-of-use and ability to control multiple peripherals while utilizing only two pins on the host controller.  Although I2C has a variety of modes, this page will deal purely with communication between a Linux-based master and a slave peripheral for the time being.
  
 
= Code =
 
= Code =
Line 15: Line 15:
  
 
[http://en.wikipedia.org/wiki/I%C2%B2C Wikipedia I²C Page]
 
[http://en.wikipedia.org/wiki/I%C2%B2C Wikipedia I²C Page]
 +
[http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=blob;f=Documentation/i2c/dev-interface Linux Kernel I2C Documentation]
  
 
[[Category:Robotics]]
 
[[Category:Robotics]]

Revision as of 18:19, 27 April 2010

This page is meant to provide some basic information about how to interface with I²C devices through the /dev/i2c interface. The I²C bus is commonly used to connect relatively low-speed sensors and other peripherals to equipment varying in complexity from a simple microcontroller to a full-on motherboard. I²C is extremely popular due to its ease-of-use and ability to control multiple peripherals while utilizing only two pins on the host controller. Although I2C has a variety of modes, this page will deal purely with communication between a Linux-based master and a slave peripheral for the time being.

Code

Note: Examples shown on this page were developed based on a Texas Instruments BeagleBoard and some changes will be required depending on the system being utilized.

Tested Devices

External Links

Wikipedia I²C Page Linux Kernel I2C Documentation