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docker_build.md

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Building in Docker

Prerequisities

  • Linux platform
  • Docker
  • Repository clone (refer to README.md)

No need to install ESP-IDF or anything else. All commands should be run in project root folder.

Configure, Build and Flash

Start an interactive IDF environnement

In this interactive shell you can run menuconfig, build, flash and monitor command.

docker run --rm -it -v .:/project -w /project -v /dev:/dev --privileged espressif/idf:v4.3.5

Configure

Then in your docker interactive shell, start by configuring for your platform. More info about the config in README.md.

idf.py menuconfig

Save with <s> and exit with <q>.

Build, flash and monitor:

idf.py build flash monitor

If idf.py can't access to USB devices, try to restart your docker interactive shell in sudo.

Exit

Exit IDF monitor mode: <Ctrl+]>

Exit docker interactive shell: exit

Specific actions

If you want to execute a specific command or to generate a reusable .bin file.

menuconfig

docker run --rm -it -v .:/project -w /project espressif/idf:v4.3.5 idf.py menuconfig

Build

docker run --rm -it -v .:/project -w /project espressif/idf:v4.3.5 idf.py build

Flash

Mapping of serial port to container is not simple in windows but you can merge all generated bin files into single firmware and flash the firmware manually using some windows tool.

Merge bins into single firmware bin file

docker run --rm -it -v .:/project -w /project/build espressif/idf:v4.3.1    //runs terminal in idf container

esptool.py --chip esp32 merge_bin --output firmware.bin @flash_args         // merges all bin files into firmware.bin

Write build/firmware.bin to ESP32 at address 0x0000

More details

docker run
    --rm                            // Removes container after exit
    -it                             // runs interactive terminal
    -v .:/project                   // maps current directory to /project in container
    -w /project                     // sets working directory inside a container to /project
    -v /dev:/dev                    // maps devices directory to acces USB and Serial devices inside docker
    --privileged                    // grants docker rights to acces host devices
    espressif/idf:v4.3.5            // image name + version
    idf.py menuconfig               // run menuconfig