• https://www.rs-online.com/designspark/day-one-with-parallella
• https://parallella.org/forums/viewtopic.php?f=12&t=1211

• 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 Once out of date, it is best avoided.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

• 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