Espressif IoT Development Framework. Official development framework for Espressif SoCs. https://docs.espressif.com/projects/esp-idf/en/stable/esp32/index.html
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Darian Leung 854127a57c usb: USB Host stack uses USB PHY driver
This commit updates the USB Host stack to use the USB PHY driver. The
USB PHY and the OTG Controller should now both be setup/deleted using
usb_new_phy() and usb_del_phy() respectively.

- The hcd_install() now expects the USB PHY and OTG Contorller to be
    already setup before it is called
- usb_host_install() now has an option to skip calling usb_del_phy() if
    the user wants to setup their own USB PHY (e.g., in the case of using
    and external PHY).
- CDC-ACM and MSC examples/test updated to use internal PHY

Closes https://github.com/espressif/esp-idf/issues/8061
2022-01-06 15:09:39 +08:00
.github gh_actions: Sync approved PRs to internal codebase 2021-11-22 12:56:42 +08:00
.gitlab Merge branch 'bugfix/ci_check_blobs' into 'master' 2022-01-05 09:26:42 +00:00
components usb: USB Host stack uses USB PHY driver 2022-01-06 15:09:39 +08:00
docs docs: add application example for esp-now 2022-01-05 16:17:28 +08:00
examples usb: USB Host stack uses USB PHY driver 2022-01-06 15:09:39 +08:00
tools Merge branch 'bugfix/esp_eth_start_tx_buff' into 'master' 2022-01-05 09:40:12 +00:00
.editorconfig style: add ini editorconfig 2021-11-30 09:04:10 +08:00
.flake8 other: Move cbor, jsmn and libsodium to idf-component-manager 2021-11-30 21:44:48 +01:00
.gitignore Add idf-component-manager python dependency 2021-08-30 13:23:23 +02:00
.gitlab-ci.yml Merge branch 'bugfix/set_authmode_by_switching_number_to_string' into 'master' 2021-12-29 04:27:37 +00:00
.gitmodules other: Move cbor, jsmn and libsodium to idf-component-manager 2021-11-30 21:44:48 +01:00
.mypy.ini Add mypy check to pre-commit-config 2021-02-25 07:05:43 +00:00
.pre-commit-config.yaml build-system: include soc_caps defines into kconfig 2021-12-06 12:37:07 +08:00
.pylintrc ci: add pytest-embedded CI jobs 2021-11-30 09:42:12 +08:00
.readthedocs.yml Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
add_path.sh Whitespace: Automated whitespace fixes (large commit) 2020-11-11 07:36:35 +00:00
CMakeLists.txt Build: CMake compiler flags will be set, regardless of the cache status 2021-11-29 09:48:13 +00:00
conftest.py fix(pytest): use "--target" to filter the test cases 2021-12-02 10:55:24 +08:00
CONTRIBUTING.rst Docs: Add copyright header guide for contributions 2021-11-04 11:55:26 +01:00
export.bat Tools: Remove MSYS/Mingw support 2021-11-10 17:25:07 +01:00
export.fish Edited Rob Walker's commit to keep ESP_IDF consistency 2021-10-13 21:28:35 +08:00
export.ps1 Tools: Make clear the used platform in the PowerShell export script 2021-11-09 11:28:48 +01:00
export.sh Avoid exception messages while autocomplete initialization in export.sh 2021-11-29 18:39:49 +01:00
install.bat Tools: Remove MSYS/Mingw support 2021-11-10 17:25:07 +01:00
install.fish Fix install.fish 2021-07-28 17:45:38 +02:00
install.ps1 tools: Installing tools for given IDF_TARGET 2021-07-16 15:03:19 +02:00
install.sh tools: {export,install}.sh: fix quoting issues 2021-10-14 09:45:30 +02:00
Kconfig Tools: Add "idf.py save-defconfig" command to generate sdkconfig.defaults 2021-12-15 17:15:31 +01:00
LICENSE Initial public version 2016-08-17 23:08:22 +08:00
pytest.ini test: use pytest for examples/custom_bootloader 2021-12-02 10:55:24 +08:00
README_CN.md tools: replace _ with - in idf.py 2021-10-13 17:30:38 +08:00
README.md tools: replace _ with - in idf.py 2021-10-13 17:30:38 +08:00
requirements.txt Tools: Remove MSYS/Mingw support 2021-11-10 17:25:07 +01:00
sdkconfig.rename Build & config: Remove the "make" build system 2021-11-10 09:53:53 +01:00
sonar-project.properties ci(sonarqube): pass "sonar.exclusions" in CI 2021-09-02 14:28:22 +08:00
SUPPORT_POLICY_CN.md doc: Update support period policy document 2020-08-14 09:59:35 +10:00
SUPPORT_POLICY.md Drop support for unsupported Python versions 2021-06-21 21:48:49 +02:00

Espressif IoT Development Framework

ESP-IDF is the development framework for Espressif SoCs supported on Windows, Linux and macOS.

ESP-IDF Release and SoC Compatibility

The following table shows ESP-IDF support of Espressif SoCs where alt text and alt text denote preview status and support, respectively. In preview status the build is not yet enabled and some crucial parts could be missing (like documentation, datasheet). Please use an ESP-IDF release where the desired SoC is already supported.

Chip v3.3 v4.0 v4.1 v4.2 v4.3 v4.4
ESP32 alt text alt text alt text alt text alt text alt text
ESP32-S2 alt text alt text alt text
ESP32-C3 alt text alt text
ESP32-S3 alt text alt text Announcement
ESP32-H2 alt text Announcement

Espressif SoCs released before 2016 (ESP8266 and ESP8285) are supported by RTOS SDK instead.

Developing With ESP-IDF

Setting Up ESP-IDF

See https://idf.espressif.com/ for links to detailed instructions on how to set up the ESP-IDF depending on chip you use.

Note: Each SoC series and each ESP-IDF release has its own documentation. Please see Section Versions on 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 Espressif 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