Attach heat sink with thermal adhesive.
I am using Artic Alumina.
The 2 sided thermal tape did not work for me.

http://www.parallella.org/docs/parallella_manual.pdf
  * Please look at the board layout on page 10.
  * The quick start guide is also here starting at page 13.

https://www.parallella.org/quick-start/

  * 5V DC power supply with 5.5mm OD / 2.1mm ID center positive polarity plug.
  * A micro HDMI to HDMI cable.
  * A USB male Micro-B to female Standard-A cable.
  * An ethernet cable
  * Micro SD Card
==== Parallella UART Connection ====
  * https://www.rs-online.com/designspark/day-one-with-parallella
  * https://parallella.org/forums/viewtopic.php?f=12&t=1211
==== Parallella Example walk through with Yocto ====
  * https://github.com/peteasa/parallella/wiki/Getting-started
    * I have tried the adapteva way, but built their own build environment which they don't have the resources to maintain. Once out of date, it is best avoided. It is an incredible amount of work to bring up to date.
    * the submodule branches I am using
      * <code bash>
for dir in $(find . -type d -name '.git' | sed 's#\/\.git$##'); do (cd $dir; pwd; git branch); done
</code>
      * <file>
/home/tdwebste/src/yocto/parallella/parallella-yoctobuild/meta-parallella
* elink-redesign
  yoctobuild
/home/tdwebste/src/yocto/parallella/parallella-yoctobuild/meta-example
* elink-redesign
/home/tdwebste/src/yocto/parallella/parallella-yoctobuild/poky
* morty
  master
  master-next
/home/tdwebste/src/yocto/parallella/parallella-yoctobuild/meta-epiphany
* elink-redesign
  master
/home/tdwebste/src/yocto/parallella/parallella-yoctobuild/meta-exotic
* elink-redesign
  master
/home/tdwebste/src/yocto/parallella/parallella-yoctobuild
* elink-redesign
/home/tdwebste/src/yocto/parallella/examples
* elink-redesign
/home/tdwebste/src/yocto/parallella/parallella-fpga/oh
* master
/home/tdwebste/src/yocto/parallella/parallella-fpga/device-tree-xlnx
* (HEAD detached at xilinx-v2016.4)
  master
/home/tdwebste/src/yocto/parallella/parallella-fpga
* elink-redesign
/home/tdwebste/src/yocto/parallella
  elink-redesign
* parallella-elink-redesign
</file>
      * https://www.yoctoproject.org/downloads selected latest stable yocto
    * building linux
      * cd parallella/parallella-yoctobuild/meta-example
      * source prepareexampleyoctobuild.sh
      * bitbake --help
      * bitbake hdmi-image-example #compile
      * bitbake -c listtasks hdmi-image-example  #list tasks
        * tasks are are in the form do_**task** eg do_clean or do_cleanall
        * bitback -c cleanall hdmi-image-example # equivalent to make clean
        * unfortunately epiphany-elf-gcc is hard configured to use and old version of autoconf 2.64
          * choice one download ftp://ftp.gnu.org/gnu/autoconf/ autoconf 2.64
            * wget http://ftp.gnu.org/gnu/autoconf/autoconf-2.64.tar.bz2
            * configure
            * make
              * make -n install
              * check to make sure you will not overwrite your main autoconf
              * make install
            * which -a autoconf 
          *  upgrade configure.ac to autoconf 2.69
          * I choose the install autoconf 2.64
          * config.log shows that conftest.c is missing from epiphany-elf/libgcc build
            * conftest.c is generated
            *
          * 
        
==== Parallella Open Hardware Accelerator ====
  * https://www.parallella.org/2016/01/21/creating-an-fpga-accelerator-in-15-minutes/
  * edit setenv.sh
    * export PATH=$PATH:/opt/Xilinx/Vivado/2015.1/bin #2016.4 causes CRITICAL syntax errors.
  * . setenv.sh
  * ./run.sh accelerator
  * apt-get install iverilog gtkwave
  * gtkwave waveform.vcd # view waveform

  * gvim src/accelerator/hdl/accelerator.v # "put code here"
  * cd src/accelerator/fpga
  * ./build.sh |tee build.log # build bitstream
    * check the log file for errors
    *