(Tutorial in the making...)
Eclipse offers a very good development environment with numerous features, however setting it correctly is sometimes frustrating. Once it is done, it make the workflow quite simple. So let's set it up and see how it goes!

The first thing that needs to be done is to set-up ESP-IDF and ensure that all the dependencies are taken care of. Check the detailed tutorial on setting up ESP-IDF to get that done.

The ESP-IDF is setup in such a way that you can develop your application without modifying the ESP-IDF files. The application can reside in a completely separate directory from the ESP-IDF files. This allows the ESP-IDF core files to be updated independently of the application. We will be configuring the same 01_hello_world example from the above tutorial.

Ensure that the tool-chain works from command line, before proceeding with this tutorial. In fact this tutorial uses the makefile setup from the previous tutorial to configure the tool-chain.

Download and Install Eclipse C/C++ IDE

To get started download the latest eclipse IDE for C/C++

http://www.eclipse.org/downloads/packages/eclipse-ide-cc-developers-includes-incubating-components/indigosr2

Create a New Project

All the images below have steps marked with numbers, please perform them in a series. To start with

  1. Select the project type as Empty Project
  2. Toolchains as Cross GCC
  3. Uncheck Use Default Location
  4. Enter the project Name as 01_hello_world

2 make file proj esp32.JPG

Setup Environment Variables

These variables are setup to tell eclipse where the tool-chain and the ESP-IDF core is located.

  1. Right Click on the Project Name.
  2. Select Properties.


3 proj properties.jpg

To add the environment variables:

  1. Expand C/C++ Build and click on Environment
  2. Click on the Add Button as shown below. Also notice that the IDE picks up some variable from the make file


4 env variables.JPG

  1. Click on the “Environment” properties page under “C/C++ Build”. Click “Add...” and enter name V and value 1.
  2. Click “Add...” again, and enter name IDF_PATH. The value should be the full path where ESP-IDF is installed. Windows users: Use forward-slashes not backslashes for this path, ie C:/Users/MyUser/Development/esp-idf.

5 update env variables.JPG

On the same Environment property page, edit the PATH environment variable. Delete the existing value and replace it with C:\msys32\usr\bin;C:\msys32\mingw32\bin;C:\msys32\opt\xtensa-esp32-elf\bin (If you installed msys32 to a different directory then you’ll need to change these paths to match) 6 path variables.JPG

Setup Build Variables

7 build cmd.JPG 9 compiler settings.JPG

Build/Compile the Project

10 build settings.JPG 11 build proj.JPG 12 build sucess.JPG

Resolving Dependencies

13 add dependency paths.JPG 14 add dependency paths.JPG

Configure targets

15 targets.JPG 16 target flash.JPG 17 flash success.JPG

References