109 lines
5.6 KiB
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109 lines
5.6 KiB
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Build and Flash with Eclipse IDE
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********************************
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.. _eclipse-install-steps:
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Installing Eclipse IDE
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======================
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The Eclipse IDE gives you a graphical integrated development environment for writing, compiling and debugging ESP-IDF projects.
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* Start by installing the esp-idf for your platform (see files in this directory with steps for Windows, OS X, Linux).
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* We suggest building a project from the command line first, to get a feel for how that process works. You also need to use the command line to configure your esp-idf project (via ``make menuconfig``), this is not currently supported inside Eclipse.
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* Download the Eclipse Installer for your platform from eclipse.org_.
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* When running the Eclipse Installer, choose "Eclipse for C/C++ Development" (in other places you'll see this referred to as CDT.)
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Windows Users
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=============
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Using ESP-IDF with Eclipse on Windows requires different configuration steps. :ref:`See the Eclipse IDE on Windows guide <eclipse-windows-setup>`.
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Setting up Eclipse
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==================
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Once your new Eclipse installation launches, follow these steps:
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Import New Project
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------------------
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* Eclipse makes use of the Makefile support in ESP-IDF. This means you need to start by creating an ESP-IDF project. You can use the idf-template project from github, or open one of the examples in the esp-idf examples subdirectory.
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* Once Eclipse is running, choose File -> Import...
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* In the dialog that pops up, choose "C/C++" -> "Existing Code as Makefile Project" and click Next.
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* On the next page, enter "Existing Code Location" to be the directory of your IDF project. Don't specify the path to the ESP-IDF directory itself (that comes later). The directory you specify should contain a file named "Makefile" (the project Makefile).
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* On the same page, under "Toolchain for Indexer Settings" choose "Cross GCC". Then click Finish.
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Project Properties
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------------------
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* The new project will appear under Project Explorer. Right-click the project and choose Properties from the context menu.
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* Click on the "Environment" properties page under "C/C++ Build". Click "Add..." and enter name ``BATCH_BUILD`` and value ``1``.
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* Click "Add..." again, and enter name ``IDF_PATH``. The value should be the full path where ESP-IDF is installed.
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* Edit the ``PATH`` environment variable. Keep the current value, and append the path to the Xtensa toolchain that will installed as part of IDF setup (``something/xtensa-esp32-elf/bin``) if this is not already listed on the PATH.
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* On macOS, add a ``PYTHONPATH`` environment variable and set it to ``/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages``. This is so that the system Python, which has pyserial installed as part of the setup steps, overrides any built-in Eclipse Python.
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Navigate to "C/C++ General" -> "Preprocessor Include Paths" property page:
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* Click the "Providers" tab
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* In the list of providers, click "CDT Cross GCC Built-in Compiler Settings". Under "Command to get compiler specs", replace the text ``${COMMAND}`` at the beginning of the line with ``xtensa-esp32-elf-gcc``. This means the full "Command to get compiler specs" should be ``xtensa-esp32-elf-gcc ${FLAGS} -E -P -v -dD "${INPUTS}"``.
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* In the list of providers, click "CDT GCC Build Output Parser" and type ``xtensa-esp32-elf-`` at the beginning of the Compiler command pattern. This means the full Compiler command pattern should be ``xtensa-esp32-elf-(g?cc)|([gc]\+\+)|(clang)``
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.. _eclipse-build-project:
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Building in Eclipse
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-------------------
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Before your project is first built, Eclipse may show a lot of errors and warnings about undefined values. This is because some source files are automatically generated as part of the esp-idf build process. These errors and warnings will go away after you build the project.
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* Click OK to close the Properties dialog in Eclipse.
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* Outside Eclipse, open a command line prompt. Navigate to your project directory, and run ``make menuconfig`` to configure your project's esp-idf settings. This step currently has to be run outside Eclipse.
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*If you try to build without running a configuration step first, esp-idf will prompt for configuration on the command line - but Eclipse is not able to deal with this, so the build will hang or fail.*
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* Back in Eclipse, choose Project -> Build to build your project.
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**TIP**: If your project had already been built outside Eclipse, you may need to do a Project -> Clean before choosing Project -> Build. This is so Eclipse can see the compiler arguments for all source files. It uses these to determine the header include paths.
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Flash from Eclipse
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You can integrate the "make flash" target into your Eclipse project to flash using esptool.py from the Eclipse UI:
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* Right-click your project in Project Explorer (important to make sure you select the project, not a directory in the project, or Eclipse may find the wrong Makefile.)
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* Select Build Targets -> Create... from the context menu.
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* Type "flash" as the target name. Leave the other options as their defaults.
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* Now you can use Project -> Build Target -> Build (Shift+F9) to build the custom flash target, which will compile and flash the project.
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Note that you will need to use "make menuconfig" to set the serial port and other config options for flashing. "make menuconfig" still requires a command line terminal (see the instructions for your platform.)
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Follow the same steps to add ``bootloader`` and ``partition_table`` targets, if necessary.
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Related Documents
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-----------------
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.. toctree::
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:maxdepth: 1
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eclipse-setup-windows
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.. _eclipse.org: https://www.eclipse.org/
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