Esp32 Ide Eclipse

ESP-IDF Eclipse Plugin brings developers an easy-to-use Eclipse-based development environment for developing ESP32 based IoT applications. It provides better tooling capabilities, which simplifies and enhances standard Eclipse CDT for developing and debugging ESP32 IoT applications. In Output Parser add xtensa-esp32-elf- at the beginning of the line. Now click on apply again,then click on Ok button. Now we can build the project. To Flash the compiled code to the dev board, we need define a target. Select Build Target on right side of the IDE, right click on the project, select new. Provide target name as flash and click ok. ESP-IDF Plugin for Eclipse is based on Eclipse CDT for developing applications on ESP32. ESP32 is a popular low-power system on chip microcontrollers with integrated Wi-Fi and dual-mode Bluetooth, making it suitable for designing and prototyping IoT solutions. ESP-IDF Plugin provides better tooling capabilities, which simplifies and enhances standard Eclipse CDT. It offers advanced editing.

  1. Esp32 Arduino Ide Setup
  2. Esp32 Eclipse Setup
  3. Esp32 Ide Eclipse Tutorial

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.

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

Esp32 Arduino Ide Setup

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

Esp32 ide eclipse free
  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

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.

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

Add the 3 variables as shown in the table below:

Variable Value Description
V1 Turns ON the verbose. The console shows a tons of messages that the build process outputs.
You may turn it off later. It will be handy for troubleshooting.
IDF_PATHF:/esp32_bm/esp-idf This is path on my computer, put the path where you've downloaded the ESP-IDF
PATHC:msys32usrbin;C:msys32mingw32bin;C:msys32optxtensa-esp32-elfbinDelete the existing value and replace it with this value

  1. Click on C/C++ General
  2. Then Click on Preprocessor Include Paths
  3. Now tick the CDT Cross GCC Built-in Compiler Settings
  4. Add the value xtensa-esp32-elf-gcc ${FLAGS} -E -P -v -dD '${INPUTS}

We do similar step for build parser output like so:

  1. Click on C/C++ General
  2. Then Click on Preprocessor Include Paths
  3. Now tick the CDT GCC Build Output Parser
  4. Add the value xtensa-esp32-elf-(g?cc) ([gc]++) (clang)

Add finally we right click on the project and select Build Project

If everything we did has gone well so far, you'll see success. I messed up several times first to get it working and then while re-doing to capture the steps.
Wait, do do you see some yellow exclamations there! These are files and folders eclipse is not able to find. So let's resolve these dependencies in the next step.

  • Click on C/C++ General this time, select Paths and Symbols, under the includes tab click on Add..

Now add the following paths one by one. You may include more of these if you're project uses more ESP-IDF components. In the next tutorial I will try and cover the structure of the ESP-IDF and a simple example.

Okay, now check the exclamations, they are gone!

Are we done yet? NO, no hardware setup is done unless we program/flash the target. So let us configure two targets. Once to make all and other to flash.

Right Click on the Project, click on Build Targets and select Create..

Finally its time to Flash the target. Ensure that the board is connected, and the correct com port is chosen from the menu

We are building with ESP32, are you?
Do sign-up here, if you want be posted about more of these tutorials.

  • Kolban Video

The steps above are for windows, similar and less steps can lead to setting up on Linux/Ubuntu and MAC OS. Check this detailed video by Kolban

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Eclipse defaults are different to lots of IDE's we use on Windows, here's how we fix eclipse…

Open eclipse preferences:

Menu > Window > Preferences

General > Workspace > Build > Save automatically before build

General > Keys

To Upper Case – Ctrl + Shift + U

To Lower Case – Ctrl + Shift + L

C/C++ > Editor > Typing

Automatically close > all options = Off

Esp32 Eclipse Setup


Esp32 Ide Eclipse Tutorial

Other Issues

CTRL+ left cursor and right cursor doesn't work even though key mappings are right in General > Keys

Disabling the welcome screen when eclipse starts up (checkbox not to show again) will fix it (weird java bug apparently)

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Esp32 Ide Eclipse
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