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.
 +
# 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 if for the am335x and is on [http://www.ti.com/lit/pdf/spruh73 TI's site].
  
# Download the BeagleBone and the BeagleBoard-xM [http://beagleboard.org/ BeagleBoard System Reference Manuals].
+
Keep both of these in an easy to find place, we'll reference them now and then.
# Download the [http://www.ti.com/lit/ug/spruh73f/spruh73f.pdf AM335x Technical Reference Manual].  Be sure you have the right one, it's some 4,300+ pages long.
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# Download the [http://www.ti.com/lit/ds/sprs685d/sprs685d.pdf DM3730 Technical Reference Manual].  It's some 3,600+ pages long.
+
 
+
Keeps these in an easy to find place.
+
  
 
== Set Up Git ==
 
== 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.
+
Many of the following exercises require some extra files on the BeagleBoard which you should have loaded on your host computer eariler.  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.
 
+
Go to [http://help.github.com/set-up-git-redirect github] and follow the directions for installing and setting up git.  No need to set up your own repository right now (unless you want to).
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I suggest you do this for both your host computer and your Beagle.  On the Beagle use
+
 
+
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.
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+
On my host computer I had to run
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host$ '''ssh-add id_rsa'''
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after running <code>ssh-keygen</code> to get <code>ssh -T git@github.com</code> to work.
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+
=== 'opkg update' Doesn't Work ===
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If you're connected to the Internet but the "feeds.angstrom-distribution.org" host doesn't resolve, make this the only line in the "/etc/resolv.conf" file on your Beagle:
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nameserver 208.67.222.222
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This is an [[Wikipedia:OpenDNS|OpenDNS]] nameserver.
+
  
 
== Get the Files ==
 
== Get the Files ==
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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'''
+
  bone$ '''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.
+
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 if you have done so already.
  
  host$ '''git clone git://github.com/MarkAYoder/BeagleBoard-exercises.git exercises'''
+
  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.
  
  beagle$ '''cd exercises'''
+
  bone$ '''cd exercises'''
  beagle$ '''ls'''
+
  bone$ '''ls'''
  beagle$ '''cd pptx'''
+
  bone$ '''cd pptx'''
  beagle$ '''ls'''
+
  bone$ '''ls'''
  
 
Later exercises will tell you which files to use from here.
 
Later exercises will tell you which files to use from here.
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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.
 
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'''
+
  bone$ '''git pull'''
 
+
== 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.
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beagle$ '''cd ~/exercises/gstreamer'''
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beagle$ '''git clone git://github.com/MarkAYoder/esc-media.git'''
+
  
This load the things needed for using the DSP.
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=== P8 and P9 Header Files ===
  beagle$ '''cd ~/exercises/audioThru/lab06d_audio_c6run'''
+
The BeagleBone Black has two headers, P8 and P9, that have lots of IO. There are two [http://derekmolloy.ie/gpios-on-the-beaglebone-black-using-device-tree-overlays/ pdf files] that have lots of information about the headers in this git repositoryHere's how to get them
  beagle$ '''git clone git://github.com/MarkAYoder/c6run_build.git'''
+
  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.
  
 
{{YoderFoot}}
 
{{YoderFoot}}

Latest revision as of 10:17, 7 September 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 which you should have loaded on your host computer eariler. 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.

Get the Files

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

bone$ 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 if you have done so already.

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

Now take a look at what you got.

bone$ cd exercises
bone$ ls
bone$ cd pptx
bone$ 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.

bone$ 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