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BeagleBone: Creative Projects for Hobbyists by Richard Grimmett, Rodolfo Giometti, Charles Hamilton

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Chapter 6. Run Faster, Run Real Time

In this chapter, we will cover the following recipes:

  • Installing a test tool
  • Modifying the kernel using RT-PREEMPT
  • Modifying the kernel using Xenomai
  • Programmable real-time units – an introduction
  • A simple PRU test with an assembler
  • Running an ultrasonic range sensor with the PRUs
  • Using Python with the PRUs

Introduction

Things are getting interesting: no more blinky LEDs from sysfs. It's real time...time to learn about how to make your BeagleBone Black perform real-time tricks.

This is not to say that the BeagleBone Black is pokey. The challenge is that, nowadays, innovators, developers, product designers, and engineers always demand faster, more predictable results, especially in scenarios where small latencies can ...

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