Flashing an existing image without risking a re-build

Technical Note 68610






11/6/2015 10:53 AM


In order to avoid an image to be rebuilt the following solution can be used.


  • IAR Embedded Workbench for ARM must not be too old. Versions released 2007 (or later) can use this solution.
  • The file format of the existing image must be of a format that can be downloaded by C-SPY. (For example ELF/DWARF or hex).


1) setting up

  • Create a new project. Choose Project > Create New Project
  • Select the project template: Externally built executable
  • Specify the project name.
  • Add the image file to the project, choose Project > Add Files and make sure to choose All Files in the Files of type drop-down list.
  • The only project options that are meaningful to set, (for this kind of project), are the options in the categories: General Options and Debugger.
  • Make sure to set up the general project options in the same way as when the executable file was built.
  • Set up the C-SPY options in accordance to your emulator/JTAG etc.

2) downloading

  • To download the image file, select the project in the Workspace window and click the Debug button.
  • The project can be reused whenever needed to download the image.


Be aware that the exact names in the IAR Embedded Workbench IDE can vary between versions.

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