Espressif IoT Development Framework. Official development framework for Espressif SoCs. https://docs.espressif.com/projects/esp-idf/en/stable/esp32/index.html
Go to file
2021-02-18 09:39:01 +00:00
.github build system: Also get IDF version from annotated tags only 2020-10-07 13:58:21 +11:00
components fix read multi char failed(GATT_27001) 2021-02-18 09:39:01 +00:00
docs docs: fix uart number naming error 2021-01-20 17:55:07 +08:00
examples Merge branch 'bugfix/cmake_example_sdkconfig_path_v4.2' into 'release/v4.2' 2021-02-17 22:45:21 +00:00
make build system: Also get IDF version from annotated tags only 2020-10-07 13:58:21 +11:00
tools Merge branch 'bugfix/cmake_example_sdkconfig_path_v4.2' into 'release/v4.2' 2021-02-17 22:45:21 +00:00
.editorconfig cmake: Use cmake_lint project, tidy up all CMake source files 2018-04-30 09:59:20 +10:00
.flake8 bugfix: fix flake8 warning for esp-cryptoauthlib submodule 2020-05-21 21:02:33 +05:30
.gitignore Add JTAG related example tests 2020-05-05 11:08:33 +02:00
.gitlab-ci.yml CI: Disable pipelines generated by push on dev branches 2020-12-14 14:01:44 +08:00
.gitmodules secure_element: atecc608_ecdsa example 2020-05-21 13:08:30 +05:30
.readthedocs.yml docs: Remove building of zipped HTML docs from build process and consequently from Downloads as many users don't use that. We are still providing PDF documentation for people who prefer viewing docs off-line. Removal of this build step is expected to save almost 10 minutes of build time and resolve issue of build failures because of hitting 40 min build time limit on Read The Docs. 2019-07-08 13:19:56 +08:00
add_path.sh tools: {install,export}.{bat,sh} tools 2019-07-01 14:51:44 +02:00
CMakeLists.txt cmake: error out on building in IDF_PATH root dir 2020-04-07 20:51:53 +08:00
CONTRIBUTING.rst docs: Fix broken URLs & permanent redirects 2020-03-23 18:11:23 +11:00
export.bat tools: {install,export}.{bat,sh} tools 2019-07-01 14:51:44 +02:00
export.fish tools: export.{sh,fish}: add otatool.py to PATH 2020-04-03 01:15:29 +02:00
export.ps1 scripts: updates export.ps1 to export tools' paths 2020-07-30 13:55:03 +02:00
export.sh tools: export.sh: fix compatibility with dash shell 2020-06-23 16:34:19 +02:00
install.bat tools: install.bat: bail out if idf_tools.py call fails 2019-07-23 06:20:52 +02:00
install.fish tool: fix install.fish 2020-03-27 18:11:01 +08:00
install.ps1 tools: add install.ps1, export.ps1 2019-08-27 13:45:50 +08:00
install.sh tools: {install,export}.{bat,sh} tools 2019-07-01 14:51:44 +02:00
Kconfig Fix missed deprecated Kconfig option caused by tabs in sdkconfig.rename 2020-04-30 18:23:21 +02:00
LICENSE Initial public version 2016-08-17 23:08:22 +08:00
README_CN.md docs: Provide link to ESP32-S2 specific documentation 2020-05-25 02:59:36 +08:00
README.md Fix the setup instructions in the main README 2020-09-08 09:54:46 +02:00
requirements.txt tools: Fix requirements incompatible with Python 2 2020-12-14 10:48:00 +01:00
sdkconfig.rename cmake: Add new compiler optimization levels definitions 2019-09-06 17:37:19 +08:00
SUPPORT_POLICY_CN.md add chinese translation for support period policy 2019-11-11 10:40:30 +08:00
SUPPORT_POLICY.md add chinese translation for support period policy 2019-11-11 10:40:30 +08:00

Espressif IoT Development Framework

ESP-IDF is the official development framework for the ESP32 and ESP32-S Series SoCs provided for Windows, Linux and macOS.

Developing With ESP-IDF

Setting Up ESP-IDF

See setup guides for detailed instructions to set up the ESP-IDF:

Chip Getting Started Guides for ESP-IDF
ESP32
ESP32-S2

Note: Each ESP-IDF release has its own documentation. Please see Section Versions how to find documentation and how to checkout specific release of ESP-IDF.

Non-GitHub forks

ESP-IDF uses relative locations as its submodules URLs (.gitmodules). So they link to GitHub. If ESP-IDF is forked to a Git repository which is not on GitHub, you will need to run the script tools/set-submodules-to-github.sh after git clone. The script sets absolute URLs for all submodules, allowing git submodule update --init --recursive to complete. If cloning ESP-IDF from GitHub, this step is not needed.

Finding a Project

As well as the esp-idf-template project mentioned in Getting Started, ESP-IDF comes with some example projects in the examples directory.

Once you've found the project you want to work with, change to its directory and you can configure and build it.

To start your own project based on an example, copy the example project directory outside of the ESP-IDF directory.

Quick Reference

See the Getting Started guide links above for a detailed setup guide. This is a quick reference for common commands when working with ESP-IDF projects:

Setup Build Environment

(See the Getting Started guide listed above for a full list of required steps with more details.)

  • Install host build dependencies mentioned in the Getting Started guide.
  • Run the install script to set up the build environment. The options include install.bat or install.ps1 for Windows, and install.sh or install.fish for Unix shells.
  • Run the export script on Windows (export.bat) or source it on Unix (source export.sh) in every shell environment before using ESP-IDF.

Configuring the Project

  • idf.py set-target <chip_name> sets the target of the project to <chip_name>. Run idf.py set-target without any arguments to see a list of supported targets.
  • idf.py menuconfig opens a text-based configuration menu where you can configure the project.

Compiling the Project

idf.py build

... will compile app, bootloader and generate a partition table based on the config.

Flashing the Project

When the build finishes, it will print a command line to use esptool.py to flash the chip. However you can also do this automatically by running:

idf.py -p PORT flash

Replace PORT with the name of your serial port (like COM3 on Windows, /dev/ttyUSB0 on Linux, or /dev/cu.usbserial-X on MacOS. If the -p option is left out, idf.py flash will try to flash the first available serial port.

This will flash the entire project (app, bootloader and partition table) to a new chip. The settings for serial port flashing can be configured with idf.py menuconfig.

You don't need to run idf.py build before running idf.py flash, idf.py flash will automatically rebuild anything which needs it.

Viewing Serial Output

The idf.py monitor target uses the idf_monitor tool to display serial output from ESP32 or ESP32-S Series SoCs. idf_monitor also has a range of features to decode crash output and interact with the device. Check the documentation page for details.

Exit the monitor by typing Ctrl-].

To build, flash and monitor output in one pass, you can run:

idf.py flash monitor

Compiling & Flashing Only the App

After the initial flash, you may just want to build and flash just your app, not the bootloader and partition table:

  • idf.py app - build just the app.
  • idf.py app-flash - flash just the app.

idf.py app-flash will automatically rebuild the app if any source files have changed.

(In normal development there's no downside to reflashing the bootloader and partition table each time, if they haven't changed.)

Erasing Flash

The idf.py flash target does not erase the entire flash contents. However it is sometimes useful to set the device back to a totally erased state, particularly when making partition table changes or OTA app updates. To erase the entire flash, run idf.py erase_flash.

This can be combined with other targets, ie idf.py -p PORT erase_flash flash will erase everything and then re-flash the new app, bootloader and partition table.

Resources