Chao: /* Use toolchain */

2017-05-26T18:40:20Z

Use toolchain

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== Breif ==
* esp8266 open source SDK
* Official github page: https://github.com/pfalcon/esp-open-sdk

== Install in Debian/Linux/Lubuntu ==
* Folder instrucion, cd into /opt/ first
make app folder, for example nodemcu, git clone from github, should be /opt/nodemcu-firmware
git clone the esp-open-sdk folder, should be /opt/esp-open-sdk

* Install all tools
sudo apt-get install make unrar-free autoconf automake libtool gcc g++ gperf \
flex bison texinfo gawk ncurses-dev libexpat-dev python-dev python python-serial \
sed git unzip bash help2man wget bzip2
=== Install esp-open-sdk ===
* Clone
cd /opt
git clone --recursive https://github.com/pfalcon/esp-open-sdk.git
* Compile esp-open-sdk, to build the self-contained, standalone toolchain+SDK:
make STANDALONE=y
make
* This took 1-2 hours, and if sucessfully installed you will see
Xtensa toolchain is built, to use it:

export PATH=/opt/nodemcu/esp-open-sdk/xtensa-lx106-elf/bin:$PATH

Espressif ESP8266 SDK is installed, its libraries and headers are merged with the toolchain

===Use toolchain ===
* First always run export line
export PATH=/opt/nodemcu/esp-open-sdk/xtensa-lx106-elf/bin:$PATH
* Try test with source code blinky [https://github.com/esp8266/source-code-examples/tree/master/blinky example here]
* Compile nodemcu code
cd /opt/nodemcu/nodemcu-firmware
make
* Brand new firmware bin file can be found in "bin" folder

=== Trouble shoot ===
Error: configure: error: could not find GNU libtool >= 1.5.26
* Need to install this: sudo apt-get install libtool-bin
You must NOT be root to run crosstool-NG
* add a none root user
user add esp
chown -R esp:esp /opt/nodemcu/
chmod u+rwx /opt/nodemcu/

== Using with Vigrant ==

* Install it via [[vagrant]], get the vagrant git package:
git clone https://github.com/adafruit/esp8266-micropython-vagrant.git
cd esp8266-micropython-vagrant
* provision vagrant box: vagrant up and vagrant ssh
=== Compile SDK ===
cd ~/esp-open-sdk
make STANDALONE=y
This will take ''30-90 mins''' to finish, actual time depends on your machine, not very necessary to do the following step, edit the Vagrantfile
# Bump the memory allocated to the VM up to 1 gigabyte as the compilation of
# the esp-open-sdk tools requires more memory to complete.
v.memory = 1024

and the compiling will be finished like this, SDK is installed now.
<syntaxhighlight lang="python">
...
Xtensa toolchain is built, to use it:

export PATH=/home/vagrant/esp-open-sdk/xtensa-lx106-elf/bin:$PATH

Espressif ESP8266 SDK is installed, its libraries and headers are merged with the toolchain
</syntaxhighlight>
==== Setup the Path of Bin of SDK ====
Run this command to update the .profile file that runs whenever you log into the virtual machine:
echo "PATH=$(pwd)/xtensa-lx106-elf/bin:\$PATH" >> ~/.profile
Logout and login again to process the update:
exit
vagrant ssh
and check the path is correct or not
echo $PATH
the result should be
/home/vagrant/esp-open-sdk/xtensa-lx106-elf/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games
* You can also check the .profile directly by following command
vi ~/.profile
and the result should be like:<br />

[[File:Check the path of bin.png|400px]]
[[Category:ESP8266 Firmware and SDK]]

ESP8266 Open SDK - Revision history

Chao: /* Use toolchain */