All projects of the 

On-Chip Software Development Kit

 are grouped in the all_projects.eww workspace.

Double-click on that file to open the workspace in IAR.

Follows the steps below to create a new project:

• Create the directory structure:
  • Create the following directories:

    • onchipsdk/

      src/

      app\myProject\ to hold the your project's source code

    • onchipsdk/

      projects/iar/

      myProject\ to hold the IAR project files
  • Place the source code of your project in 

    onchipsdk/

    src/

    app\myProject\.  Typically, the source code consists of one of more C files, optionally header files, and the app_task_cfg.h header file.
• Create the IAR project:
  • Open IAR
  • Select Project, Create New Project...
  • In the Create New Project dialog:
    • Tool Chain: ARM
    • Project templates: C >  main
    • Click OK
    • give your .ewp project file a name (e.g. myProject.ewp)
  • Remove the main.c file created by default:
    • In the right pane, right-click on the main.c tab and select Close.
    • In the project structure on the left, right-click on main.c and select Remove; click Yes to confirm.
    • In your project directory (e.g. 

      onchipsdk/

      projects/iar/

      app\myProject\), delete the main.c file.
  • Right-click on the project and use the Add > Add Files... and Add > Add Group... entries to add and organize the source code files. Typically, the project contains:
    • In the app/myProject group, the source code of your application, taken from the 

      onchipsdk/

      src/

      app\myProject\ directory.
    • In the app/common group, the source code of the helper modules, taken from the 

      onchipsdk/

      src/

      app\common\ directory.
    • In the inc group, the header files associated with the library, taken from the 

      onchipsdk/

      src/

      inc\ directory.
    • In the lib group, the pre-compiled libraries libip_stack.a and libucos_full.a, taken from the 

      onchipsdk/

      src/

      lib\ directory.
    • In the modules group, the source code of the modules taken from the 

      onchipsdk/

      src/

      modules\ directory.
    • The image below show the resulting structure of a typical project "02-gpio_net"
      
• Configure the IAR project:
  • Select the new project in the Workspace view on the left by clicking on it. From the main menu select Project > Options...
  • In General Options
    • In the Target tab:
      • Core: Cortex-M3
    • In the Library Confrguration tab:
      • Set the Library low-level interface implementation to None.
  • In C/C++ Compiler:
    • Optimizations tab:
      • Set Level to High
      • Select Balanced
    • Preprocessor tab:
      

      • List the location of your header files in the Additional include directories text field, one per line. $PROJ_DIR$ is an IAR macro which corresponds to the directory containing the project's .ewp file. A typical configuration is (<your_app_dir> refers to the directory containing the source code of your application):

        $PROJ_DIR$\..\..\..\src\app\<your_app_dir>\
        $PROJ_DIR$\..\..\..\src\app\common\
        $PROJ_DIR$\..\..\..\src\inc\
        $PROJ_DIR$\..\..\..\src\modules\clilib\
        $PROJ_DIR$\..\..\..\src\modules\ip_applib\

      • Preinclude file, enter:

        $PROJ_DIR$\..\all_projects.iarinc

    • Diagnostics tab:
      • If you encounter compilation errors related to data type conversion with older versions of the OCSDK, you may need to disable some diagnostics:

      • In the Suppress these diagnostics text field, enter:

        Pa039,Pa050,Pe767,Go005,Pa082,Pa089,Pe167,Pe550,Pe188,Pe177

    • Extra Options tab:
      • check Use command line options

      • In the Command line options text field, enter:

        --no_path_in_file_macros
        --enum_is_int

  • In Output Converter:
    • Output tab:
      • check Generate additional output
      • output format: binary

• • In Build Actions:
    • In the Post-build command line field, enter:

    • C:\Python27\python.exe "$PROJ_DIR$\..\..\..\tools\dustElfToBin\dustElfToBin.py" "$TARGET_PATH$"

  • In Linker:
    • Config tab:
      • check the Override default

      • In the browse field, if you are using version 7.3 or earlier enter:

        $PROJ_DIR$\..\..\..\tools\linker_configuration\EternaPublic.icf

        for version >= 7.4, the linker file is now bundled, so enter:

        $TOOLKIT_DIR$\config\linker\Linear\DustNetworks\Eterna.icf

      • In the Configuration file symbol definitions text field, enter:

        use_loader=1

    • Library tab:
      • check Override default program entry

      • pick Entry symbol and set to:

        __reset_handler

    • Output tab:
      • Change the Output filename field to a more descriptive filename, e.g. ocfdk_02_adc.out.
    • List tab:
      • Check Generate linker map file
  • In Debugger:
    • Setup tab:
      • Driver: J-Link/J-Trace
    • Download tab:
      • check User flash loader(s)
      • check Override default .board file

      • In the browse entry, if you are using version 7.3 or earlier enter:

        $TOOLKIT_DIR$\config\flashloader\Dust\FlashEternaPublic.board

        for version >= 7.4, the board file is now bundled, so enter:

        $TOOLKIT_DIR$\config\flashloader\Linear\DustNetworks\FlashEterna.board

    • Plugins tab:
      • check uC/OS-II in addition to any checked plugins
  • In J-Link/J-Trace:
    • Connection tab:
      • pick SWD

Customizing an application

The contents of the

inc/, lib/, and modules/ directories are tightly linked together. We highly discourage modifying those files. Doing so will complicate upgrading your applications to a newer version of the

On-Chip Software Development Kit

 and may have unintended effects on other applications.  Future versions of the OCSDK will make it easier to customize the modules in one project without affecting the other samples. In the meantime, If you want to customize the behavior of the local or CLI module, we suggest creating a copy with a different name. For example, to customize the local module (assuming you will make changes to the following headers):

• Copy dnm_local.h to private_dnm_local.h
• Copy loc_task.h to private_local_task.h
• Copy loc_task.c -> private_loc_task.c and replace the old #include references with the new ones.

You can now edit the local task without impacting other projects.