These instructions have not been tested with recent builds of PX4. We hope to provide fully tested instructions with the supported toolchain in the near future.
The build requires Python 2.7.5. Therefore as of this writing Centos 7 should be used. (For earlier Centos releases a side-by-side install of python v2.7.5 may be done. But it is not recommended because it can break yum.)
The EPEL repositories are required for openocd libftdi-devel libftdi-python
wget https://dl.fedoraproject.org/pub/epel/7/x86_64/e/epel-release-7-5.noarch.rpm sudo yum install epel-release-7-5.noarch.rpm yum update yum groupinstall “Development Tools” yum install python-setuptools python-numpy easy_install pyserial easy_install pexpect easy_install toml easy_install pyyaml easy_install cerberus yum install openocd libftdi-devel libftdi-python python-argparse flex bison-devel ncurses-devel ncurses-libs autoconf texinfo libtool zlib-devel cmake
You may want to also install python-pip and screen
Execute the script below to install GCC 7-2017-q4:
pushd . cd ~ wget https://armkeil.blob.core.windows.net/developer/Files/downloads/gnu-rm/7-2017q4/gcc-arm-none-eabi-7-2017-q4-major-linux.tar.bz2 tar -jxf gcc-arm-none-eabi-7-2017-q4-major-linux.tar.bz2 exportline="export PATH=$HOME/gcc-arm-none-eabi-7-2017-q4-major/bin:\$PATH" if grep -Fxq "$exportline" ~/.profile; then echo nothing to do ; else echo $exportline >> ~/.profile; fi popd
Now restart your machine.
Check the version by entering the following command:
The output should be something similar to:
arm-none-eabi-gcc (GNU Tools for Arm Embedded Processors 7-2017-q4-major) 7.2.1 20170904 (release) [ARM/embedded-7-branch revision 255204] Copyright (C) 2017 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Ninja is a faster build system than Make and the PX4 CMake generators support it.
On Ubuntu Linux you can install this automatically from normal repos.
sudo apt-get install ninja-build -y
Other systems may not include Ninja in the package manager. In this case an alternative is to download the binary and add it to your path:
mkdir -p $HOME/ninja cd $HOME/ninja wget https://github.com/martine/ninja/releases/download/v1.6.0/ninja-linux.zip unzip ninja-linux.zip rm ninja-linux.zip exportline="export PATH=$HOME/ninja:\$PATH" if grep -Fxq "$exportline" ~/.profile; then echo nothing to do ; else echo $exportline >> ~/.profile; fi . ~/.profile