Nuttx Esp32 Enviroment

Repository with environment to build nuttx for esp32 in windows using WSL2 (Also work in Ubuntu not tested in other linux distro)

Build the container

sudo env UID=$(id -u) GID=$(id -g) docker compose build

Execute o container

sudo env UID=$(id -u) GID=$(id -g) docker compose run sindri

Build nuttx

Setup enviroment

To configure the enviroment use the script setup_build, to use the setup script first define the board to be used.

./setup_build.sh -a apolo

Optionally you can run the simulation

./setup_build.sh -a sim

Is also possible to use the -b option to copy the CustomApp folder to Apps folder to add to the build enviroment your custom apps

./setup_build.sh -b -a apolo

Build File

make  
make -j flash ESPTOOL_BINDIR=./ ESPTOOL_PORT=/dev/ttyUSB0

Using nuttx

Connectiong to board

To connect to the board the build enviroment comes with picocom, to connect to the board use the command:

picocom -b 115200 /dev/ttyUSB0 

To exit picocom use CRTL+A , CTRL + X

Run simulation

After building with "make" run

./nuttx
login: admin
password: Administrator

To stop simulation

nsh> poweroff

Configuring Wifi

ifup wlan0
wapi mode wlan0 2
wapi psk wlan0 <PSK_KEY_WIFI> 3
wapi essid wlan0 <SSID_WIFI> 1
renew wlan0

Configuring Nuttx

Create manual config file

./tools/configure.sh -l esp32s3-devkit:wifi

To list available configs type

./tools/configure.sh -L | grep esp32  

Export defconfig after make menuconfig customization

To export the defconfig file after a manual customization, for exempla to add to acustom borad in the config file use the commando below:

make savedefconfig

After this comando a filde called defconfig will be saved in the root of nuttx directory

Using USB with WSL2

Installing

First install usbipd-win

https://github.com/dorssel/usbipd-win/releases

Second in the wsl run the following commands:

sudo apt install linux-tools-5.4.0-77-generic hwdata
sudo update-alternatives --install /usr/local/bin/usbip usbip /usr/lib/linux-tools/5.4.0-77-generic/usbip 20

Attaching a device

First ensure a WSL command prompt is open. This will keep the WSL 2 lightweight VM active.

From an administrator command prompt on Windows, run this command. It will list all the USB devices connected to Windows.

usbipd wsl list

Select the bus ID of the device you’d like to attach to WSL and run this command. You’ll be prompted by WSL for a password to run a sudo command.

usbipd wsl attach --busid <busid>

Example:

usbipd wsl attach --busid 2-3

To check for usb connection in WAL2 use lsusb command

After using detach usb using:

usbipd wsl detach --busid=<busid>

Reference for usb install in WSL:

https://devblogs.microsoft.com/commandline/connecting-usb-devices-to-wsl/