By Hunyue Yau
The BeagleBone is a microboard desktop that gives the entire probabilities of a bigger notebook in a miniaturized package deal. by means of studying embedded Linux for the BeagleBone, you may get began at the highway to using the ability of the board to accomplish its complete potential.
This ebook covers correct from unboxing, exhibiting you absolutely the fundamentals of utilizing your new BeagleBone to provide you the data you should be a accountable BeagleBone proprietor and to combine the microboard into your initiatives. commence by means of studying in regards to the software program in the back of your buy sooner than relocating directly to your first uncomplicated undertaking on development an LED flasher utilizing the LEDs at the BeagleBone itself.
Get to grips with connecting and controlling your BeagleBone from a cellular gadget, sensible information on hooking up uncomplicated and toys for your BeagleBone, and troubleshooting tips about what to do whilst issues move wrong.
Finally, study the complex themes equivalent to real-time programming with the BeagleBone to get its complete power and attach it to growth forums. via the top of the booklet, you'll comprehend every thing you must get out and play!
Read Online or Download Learning Beaglebone PDF
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The BeagleBone is a microboard desktop that gives all of the chances of a bigger laptop in a miniaturized package deal. by means of studying embedded Linux for the BeagleBone, you will get all started at the street to using the facility of the board to accomplish its complete potential.
This booklet covers correct from unboxing, exhibiting you absolutely the fundamentals of utilizing your new BeagleBone to provide you the information you should be a accountable BeagleBone proprietor and to combine the microboard into your initiatives. commence by way of studying in regards to the software program at the back of your buy sooner than relocating directly to your first easy venture on development an LED flasher utilizing the LEDs at the BeagleBone itself.
Get to grips with connecting and controlling your BeagleBone from a cellular machine, useful assistance on hooking up uncomplicated and toys in your BeagleBone, and troubleshooting tips about what to do whilst issues move wrong.
Finally, study the complicated themes equivalent to real-time programming with the BeagleBone to get its complete power and fix it to growth forums. through the top of the booklet, you'll comprehend every thing you must get out and play!
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Additional resources for Learning Beaglebone
For now, we will turn on the LED to check whether we have control. In the next exercise, we will add the additional code to turn off and blink the LEDs. As the LEDs on the BBW and BBB are of different colors, some versions of software at the time of writing this book might refer to the LEDs on the BBB as green or vice versa. This is a minor cosmetic simplification in the system software, as the internal hardware between the BBB and BBW is very similar. Figuring out the LED controls Since the Linux software for the BeagleBone is constantly being updated, the first step is to determine the name used on your BeagleBone for the LEDs.
We'll get our feet wet with classic introductory exercises but, first, we'll write a Hello, World exercise to familiarize ourselves with the basics and then build our own embedded product—an LED flasher. This will be done in small steps, each introducing a set of skills needed for the LED flasher. In this chapter, we will cover the following topics: • Use a simple editor on the BeagleBone itself • File permissions (what they are and how to determine them numerically) • Set and examine file permissions • Use sysfs to control the LEDs • Read and write files using the shell language • Loop and create delays in the shell language • Debug shell scripts • Flash LEDs Setting up a foundation for the exercises Let's go through a few basics for all the exercises in this book.
In order to do the exercises, you will need to use an editor. For Linux users, they are similar to the editors that are available on the desktop/laptop. [ 42 ] Chapter 3 Most distributions will offer one of the following editors: • vi/vim: This is the classic Linux text editor. It is very versatile, but also one of the most cryptic editors available. For users interested in this editor, you can refer to one of the many books on vi. No other specific mention of this editor will be made in this book.