Difference between revisions of "EBC Exercise 05 Getting Exercise Support Materials"

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== Download Reference Manuals ==
 
== Download Reference Manuals ==
 
There are two important hardware reference manuals you need to have, the '''System Reference Manual''' (SRM) and the '''Technical Reference Manual''' (TRM) for the ARM processor. Here's where to find them.
 
There are two important hardware reference manuals you need to have, the '''System Reference Manual''' (SRM) and the '''Technical Reference Manual''' (TRM) for the ARM processor. Here's where to find them.
# [http://circuitco.com CircuitCo] has the [http://circuitco.com/support official reference materials] for the Bone. Click on the link for the Bone Black and then click on the ''Hardware Files'' link. Here you will find a link to a pdf file with the SRM.  Download it.
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# The official SRM is kept [https://github.com/beagleboard/BeagleBone-Black here on github]. Here you will find a pdf file with the SRM.  Download it.
# Finding the TRM is a bit trickier. Open the SRM you found in the previous step and find what processor it is using. (Hint: page 52) You'll find a link to a TI site that has the manual.  Be sure you have the right one, it's some 18M and 4,100+ pages long.
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# Finding the TRM if for the am335x and is on [http://www.ti.com/lit/pdf/spruh73 TI's site].
  
 
Keep both of these in an easy to find place, we'll reference them now and then.
 
Keep both of these in an easy to find place, we'll reference them now and then.
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Many of the following exercises require some extra files on the BeagleBoard.  These files are stored in a '''git''' repository.  We'll learn more about using git later.  Here I'll just show you how to get the files.
 
Many of the following exercises require some extra files on the BeagleBoard.  These files are stored in a '''git''' repository.  We'll learn more about using git later.  Here I'll just show you how to get the files.
  
I suggest you do this for both your host computer and your Beagle. On the Beagle use
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I suggest you do this for both your host computer and your Beagle. git is already installed on your Beagle.
 
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beagle$ '''opkg update'''
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beagle$ '''opkg install git'''
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beagle$ '''opkg install openssh-keygen'''
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The last opkg installs <code>ssh-keygen</code> which is needed to work with github. If <code>opkg</code> can't find it try:
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beagle$ '''wget http://www.rose-hulman.edu/~yoder/Beagle/ssh-keygen'''
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beagle$ '''chmod +x ssh-keygen'''
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On my host computer I had to run
 
On my host computer I had to run
  
 
  host$ '''apt-get install git'''
 
  host$ '''apt-get install git'''
host$ '''ssh-add id_rsa'''
 
  
Now go to [https://help.github.com/articles/set-up-git github] and [https://help.github.com/articles/generating-ssh-keys generating-ssh-keys] and follow the directions for installing and setting up git using the ssh-keys method. Note:  The versions of git installed by opkg (1.7.7) and apt-get (1.7.9.5) aren't new enough to use the credential helper so (you need git 1.7.10 or newer) so you need to use the 2nd link above and use the ssh-keys method.
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Set up your own repository at [https://github.com/ https://github.com/].
 
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No need to set up your own repository right now (unless you want to).
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Once you've followed the instructions on github check your setup with
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beagle$ '''ssh -T git@github.com'''
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Warning: untrusted X11 forwarding setup failed: xauth key data not generated
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Warning: No xauth data; using fake authentication data for X11 forwarding.
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X11 forwarding request failed on channel 0
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Hi MarkAYoder! You've successfully authenticated, but GitHub does not provide shell access.
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Now you are ready to use github.
 
Now you are ready to use github.
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It only takes one command to pull down all the files.
 
It only takes one command to pull down all the files.
  
  beagle$ '''git clone git://github.com/MarkAYoder/BeagleBoard-exercises.git exercises'''
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  beagle$ '''git clone https://github.com/MarkAYoder/BeagleBoard-exercises.git exercises --depth=1'''
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(The whole repo is some 550M.  Using '''--depth=1''' you only get the recent history and it only takes 190M.)
  
 
This will take a while since it's getting all the course files, including pdf files of the course PowerPoint.  You only have to clone once for each computer.  I suggest you do the same on your host computer.
 
This will take a while since it's getting all the course files, including pdf files of the course PowerPoint.  You only have to clone once for each computer.  I suggest you do the same on your host computer.
  
  host$ '''git clone git://github.com/MarkAYoder/BeagleBoard-exercises.git exercises'''
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  host$ '''git clone https://github.com/MarkAYoder/BeagleBoard-exercises.git exercises --depth=1'''
  
 
Now take a look at what you got.
 
Now take a look at what you got.
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  BeagleboneBlackP8HeaderTable.pdf  BeagleboneBlackP9HeaderTable.pdf
 
  BeagleboneBlackP8HeaderTable.pdf  BeagleboneBlackP9HeaderTable.pdf
 
Put these where you can find them again.
 
Put these where you can find them again.
 
== Materials for later ==
 
 
Some later exercises will need the following additional git repositories.  You don't have to load them now, the exercises will tell you when to do it.
 
 
This will load Big Buck Bunny and some other media.
 
beagle$ '''cd ~/exercises/gstreamer'''
 
beagle$ '''git clone git://github.com/MarkAYoder/esc-media.git'''
 
 
This load the things needed for using the DSP.
 
beagle$ '''cd ~/exercises/audioThru/lab06d_audio_c6run'''
 
beagle$ '''git clone git://github.com/MarkAYoder/c6run_build.git'''
 
  
 
{{YoderFoot}}
 
{{YoderFoot}}

Latest revision as of 12:28, 20 July 2016

thumb‎ Embedded Linux Class by Mark A. Yoder


You need to download some reference manuals and set up your Beagle with some extra files. Here's what to do.

Download Reference Manuals

There are two important hardware reference manuals you need to have, the System Reference Manual (SRM) and the Technical Reference Manual (TRM) for the ARM processor. Here's where to find them.

  1. The official SRM is kept here on github. Here you will find a pdf file with the SRM. Download it.
  2. Finding the TRM if for the am335x and is on TI's site.

Keep both of these in an easy to find place, we'll reference them now and then.

Set Up Git

Many of the following exercises require some extra files on the BeagleBoard. These files are stored in a git repository. We'll learn more about using git later. Here I'll just show you how to get the files.

I suggest you do this for both your host computer and your Beagle. git is already installed on your Beagle.

On my host computer I had to run

host$ apt-get install git

Set up your own repository at https://github.com/.

Now you are ready to use github.

Get the Files

It only takes one command to pull down all the files.

beagle$ git clone https://github.com/MarkAYoder/BeagleBoard-exercises.git exercises --depth=1

(The whole repo is some 550M. Using --depth=1 you only get the recent history and it only takes 190M.)

This will take a while since it's getting all the course files, including pdf files of the course PowerPoint. You only have to clone once for each computer. I suggest you do the same on your host computer.

host$ git clone https://github.com/MarkAYoder/BeagleBoard-exercises.git exercises --depth=1

Now take a look at what you got.

beagle$ cd exercises
beagle$ ls
beagle$ cd pptx
beagle$ ls

Later exercises will tell you which files to use from here.

If it's been a while since you did the clone it's a good idea to do a pull. This will make sure all the files are up to date.

beagle$ git pull

P8 and P9 Header Files

The BeagleBone Black has two headers, P8 and P9, that have lots of IO. There are two pdf files that have lots of information about the headers in this git repository. Here's how to get them

host$ git clone git://github.com/derekmolloy/boneDeviceTree.git
host$ cd boneDeviceTree/docs
host$ ls
BeagleboneBlackP8HeaderTable.pdf  BeagleboneBlackP9HeaderTable.pdf

Put these where you can find them again.




thumb‎ Embedded Linux Class by Mark A. Yoder