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2013
shabaz

BBB - Audio notes

Posted by shabaz Top Member May 28, 2013
EDIT: See here for details on how to build a DAC:  BBB - Building a DAC   The BBB, unlike the RPi, does not have an in-built analog audio output*. However, there is a USB port for a soundcard, and a HDMI interface. The nice thing about the latter is what it derives the audio from; a hardware I2S interface inside the AM3359, which sends data out to an NXP TDA19988 for conversion to HDMI. So, the possibility exists to obtain I2S directly, theoretically at up to 24bit/192kHz (128fs clo ...
shabaz

BBB - Connecting up an LCD

Posted by shabaz Top Member May 27, 2013
Now that the BBB is becoming useful, it would be good to have some libraries of code and schematics to interwork it to a few popular sized displays. The BBB has a built-in LCD interface, i.e. a parallel high speed bus that can directly write to TFT displays. The LCD interface is connected to a TDA19988 chip on-board, which provides a HDMI output. The LCD interface is also brought out to header P8 so it is also possible to direct the output to an LCD. It would need some driver experience.   ...
shabaz

BBB - HDMI and mouse

Posted by shabaz Top Member May 23, 2013
Out of curiosity I tried plugging in a HDMI cable (£2.29 from e-bay with free postage) into an out-of-the-box BBB (I didn't upgrade the image first) and it seemed to work fine with a several-year old TV. Audio didn't work, but I understand that is a problem with the image.   Setting expectations The BBB has a USB port and HDMI, so the thought may occur by some to be usable as a media PC or general purpose computer for the home. I wouldn't advise that (probably better to buy something d ...
This post is just to list some example initial things to do with the BBB, to prepare it for development. Others may have different suggestions to suit various working methods. The official getting started page is here. Powering up the board for the first time (Instructions here are Windows based, but the official page has instructions for Linux and MAC too; For Linux, no drivers are needed but they suggest using this script): Plug in the USB, let it boot up. Some drivers will not install (CDC S ...
(Disclaimer - this is some experimentation, so the information here may not be the best way of doing things. Also, please read the comments below, which have recent information as people discover things) 17th March 2013 - Anything old is now in purple. Notes have been updated to reflect recent builds.   What is it? The BeagleBone Black's TI chip (XAM3359AZCZ revision 2) contains the main processor (ARM) along with a number of other modules (see this diagram from the AM335x datasheet). ...
I’ve put together a blog that shows how to debug a Linux application running on BeagleBone Black, using the free “Community Edition” of ARM’s DS-5 toolkit.  This uses DS-5 Debugger for debug, and Streamline performance analyzer to profile the entire running system, using the Open Source “Xaos” fractal renderer as an example Linux application: http://blogs.arm.com/embedded/938-playing-with-ds-5-ce-and-beaglebone-black/   ...
Background: I have been enjoying my Beagle Bone Black for a few days now, but have been ready to take the beagle for a walk off the officially supported hardware path.  My mission: could I get the unsupported Camera Cape working despite no official support (so don't bother the developers about support questions) and not all that much to work with?  Succintly, YES!      Black Ops. Plan:  all that follows relates to an unsupported cape and my own attempts to get it ...
Installing Software Connecting to the BeagleBone board is pretty easy, here’s the quick run down of how to do it:   1) Download and install the driver:   32 bit 64 bit   2) Download and install putty:   PuTTY   Connecting Now that you have all of the necessary software installed, you need to figure connect to the board. To do this, open device manager. I always forget where it is, so I think the easiest way to get to it is just to search for it:   Start -& ...
From the Make: Blog,   Using the BeagleBone to Control a Powerful Upper Body Exoskeleton http://blog.makezine.com/2013/05/04/using-the-beaglebone-to-control-a-powerful-upper-body-exoskeleton/ Nick McGill is a senior Mechanical and Electrical Engineering student at the University of Pennsylvania. "My senior design team at the University of Pennsylvania has developed a powered upper body exoskeleton for use in physical therapy and assistive mobility applications. We’ve named the suit ...
Thank you to everyone who entered our fun Beaglebone photo hunt competion which was running across Facebook, Twitter and Google+ pages last week.   We can now confirm that boris was hiding on the the following blogs:   In the Raspberry Pi group: http://www.element14.com/community/groups/raspberry-pi-accessories/blog/2013/04/11/piface-controls-motor-speed-with-pwm The energy harvesting Roadtest area: http://www.element14.com/community/groups/energy-harvesting-solutions/blog/2013/0 ...