ESP-IDF
EPS32 development environment.
Previously tested on Raspberry Pi 3 (armv7l / python 3.7.3)
Recently tested on Raspberry Pi 400 (aarch64 / python 3.9.2).
ESP-IDF is truly awful.
Setup
Install various dependencies.
apt update apt full-upgrade apt install build-essential cmake git wget flex bison gperf python3 python3-venv python3-pip python3-setuptools python3-pyparsing ninja-build ccache libffi-dev libssl-dev dfu-util
Debian bullseye has python 3 but on buster python 3 will need to be the default version.
update-alternatives --remove-all python update-alternatives --install /usr/bin/python python /usr/bin/python3 2 update-alternatives --install /usr/bin/python python /usr/bin/python2 1 update-alternatives --config python python -V Python 3.7.3
User
Create a user for the home of the dev kit.
useradd -d /home/esp -m esp
Append paths to .profile
vi ~esp/.profile
IDF_PATH="$HOME/esp-idf" IDF_TOOLS_PATH="$HOME/esp-idf"
Install
Login as user esp
/bin/su - esp
Clone dev kit into home dir.
git clone --recursive https://github.com/espressif/esp-idf
Run installation script.
cd esp-idf sh install.sh
Finalise installation
. ~/esp-idf/export.sh
If it complains about openocd…
/usr/bin/python3 /home/esp/esp-idf/tools/idf_tools.py export --prefer-system
Save the configuration
echo ". ~/esp-idf/export.sh" >> ~/.profile
Logout from user esp
exit
Test
Login as user esp
/bin/su - esp
Enter the hello world example dir
cd ~/esp-idf/examples/get-started/hello_world
Build
idf.py build
