109 lines
3.7 KiB
ReStructuredText
109 lines
3.7 KiB
ReStructuredText
*************************************
|
|
Standard Setup of Toolchain for Linux
|
|
*************************************
|
|
|
|
|
|
Install Prerequisites
|
|
=====================
|
|
|
|
To compile with ESP-IDF you need to get the following packages:
|
|
|
|
- CentOS 7::
|
|
|
|
sudo yum install git wget make ncurses-devel flex bison gperf python pyserial
|
|
|
|
- Ubuntu and Debian::
|
|
|
|
sudo apt-get install git wget make libncurses-dev flex bison gperf python python-serial
|
|
|
|
- Arch::
|
|
|
|
sudo pacman -S --needed gcc git make ncurses flex bison gperf python2-pyserial
|
|
|
|
|
|
Toolchain Setup
|
|
===============
|
|
|
|
ESP32 toolchain for Linux is available for download from Espressif website:
|
|
|
|
- for 64-bit Linux:
|
|
|
|
https://dl.espressif.com/dl/xtensa-esp32-elf-linux64-1.22.0-80-g6c4433a-5.2.0.tar.gz
|
|
|
|
- for 32-bit Linux:
|
|
|
|
https://dl.espressif.com/dl/xtensa-esp32-elf-linux32-1.22.0-80-g6c4433a-5.2.0.tar.gz
|
|
|
|
1. Download this file, then extract it in ``~/esp`` directory::
|
|
|
|
mkdir -p ~/esp
|
|
cd ~/esp
|
|
tar -xzf ~/Downloads/xtensa-esp32-elf-linux64-1.22.0-80-g6c4433a-5.2.0.tar.gz
|
|
|
|
.. _setup-linux-toolchain-add-it-to-path:
|
|
|
|
2. The toolchain will be extracted into ``~/esp/xtensa-esp32-elf/`` directory.
|
|
|
|
To use it, you will need to update your ``PATH`` environment variable in ``~/.profile`` file. To make ``xtensa-esp32-elf`` available for all terminal sessions, add the following line to your ``~/.profile`` file::
|
|
|
|
export PATH="$PATH:$HOME/esp/xtensa-esp32-elf/bin"
|
|
|
|
Alternatively, you may create an alias for the above command. This way you can get the toolchain only when you need it. To do this, add different line to your ``~/.profile`` file::
|
|
|
|
alias get_esp32='export PATH="$PATH:$HOME/esp/xtensa-esp32-elf/bin"'
|
|
|
|
Then when you need the toolchain you can type ``get_esp32`` on the command line and the toolchain will be added to your ``PATH``.
|
|
|
|
.. note::
|
|
|
|
If you have ``/bin/bash`` set as login shell, and both ``.bash_profile`` and ``.profile`` exist, then update ``.bash_profile`` instead.
|
|
|
|
3. Log off and log in back to make the ``.profile`` changes effective. Run the following command to verify if ``PATH`` is correctly set::
|
|
|
|
printenv PATH
|
|
|
|
You are looking for similar result containing toolchain's path at the end of displayed string::
|
|
|
|
$ printenv PATH
|
|
/home/user-name/bin:/home/user-name/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/home/user-name/esp/xtensa-esp32-elf/bin
|
|
|
|
Instead of ``/home/user-name`` there should be a home path specific to your installation.
|
|
|
|
|
|
Permission issues /dev/ttyUSB0
|
|
------------------------------
|
|
|
|
With some Linux distributions you may get the ``Failed to open port /dev/ttyUSB0`` error message when flashing the ESP32. :ref:`This can be solved by adding the current user to the dialout group<linux-dialout-group>`.
|
|
|
|
|
|
Arch Linux Users
|
|
----------------
|
|
|
|
To run the precompiled gdb (xtensa-esp32-elf-gdb) in Arch Linux requires ncurses 5, but Arch uses ncurses 6.
|
|
|
|
Backwards compatibility libraries are available in AUR_ for native and lib32 configurations:
|
|
|
|
- https://aur.archlinux.org/packages/ncurses5-compat-libs/
|
|
- https://aur.archlinux.org/packages/lib32-ncurses5-compat-libs/
|
|
|
|
Before installing these packages you might need to add the author's public key to your keyring as described in the "Comments" section at the links above.
|
|
|
|
Alternatively, use crosstool-NG to compile a gdb that links against ncurses 6.
|
|
|
|
|
|
Next Steps
|
|
==========
|
|
|
|
To carry on with development environment setup, proceed to section :ref:`get-started-get-esp-idf`.
|
|
|
|
|
|
Related Documents
|
|
=================
|
|
|
|
.. toctree::
|
|
:maxdepth: 1
|
|
|
|
linux-setup-scratch
|
|
|
|
|
|
.. _AUR: https://wiki.archlinux.org/index.php/Arch_User_Repository
|