BBB PRU Clock program

Creates a clock signal using the PRU on the Beaglebone black. By toggling the status of a digital GPIO pin, a consistent clock signal can be made.

The program uses PRU0 and pin P8.12. This can be changed by editing the device tree overlay in device-tree/ and the clock.c #define.

Installation

The following will compile all the code for the PRU and main cpu:

make

Compile the device tree overlay and enable it:

cd device-tree
make enable

Running

./clock