Enable PWM on BeagleBone Black. via brian code.wordpress
I recently figured out how to enable and set PWM pins on a BlackBone Black rev. C running debian with a test image dated 2014/12/19. I got the image from here. The debain version is 3.8.13-bone68. All instruction are from the command line of a ssh session. I work on a MacBook Pro, so beaglebone.local works with Bonjour, so I don’t need to know the IP address for the board.
I started by updating and installing the universal io device tree overlays, whose source is in the folder /opt/source/beaglebone-universal-io. This folder contains the github source, so I made sure it was up to date by typing,
git pull origin master
, then to install I typed
In my detective work on this subject, there a two parts to setting up a pin,
Set the pin multiplexing for the mode/function (gpio, pwm, I2C …), which the universal IO device tree overlays allow you to do.
Setup the peripheral for the pin function.
Each Tuesday is BeagleBone Black Day here Adafruit! What is the BeagleBone? The BeagleBones are a line of affordable single-board Linux computers (SBCs) created by Texas Instruments. New to the Bone? Grab one of our Adafruit BeagleBone Black Starter Packs and check out our extensive resources available on the Adafruit Learning System including a guide to setting up the Adafruit BeagleBone IO Python Library. We have a number of Bone accessories including add-on shields (called “capes”) and USB devices to help you do even more with your SBC. Need a nice display to go along with your Bone? Check out our fine selection of HDMI displays, we’ve tested all of them with the Beagle Bone Black!