Compiler Settings

The MPLAB® Harmony Project Wizard will properly configure the XC32 compiler settings. The following steps will be completed for you:

1

Open the Project Properties window.
Click here for details.

2

Configure the compiler to isolate each function in a section.

  1. Click the xc32-gcc category in the Project Properties dialog.
  2. Select General from the Options category pull-down list.
  3. Check the box beside Isolate each function in a section.
xc32_prop_general.jpg
Click image to enlarge.

3

Change the compiler optimization setting to optimization level 1.

  1. Click the xc32-gcc category in the Project Properties dialog.
  2. Select Optimization from the Options category pull-down list.
  3. Select 1 from the optimization-level pull-down list.
xc32_prop_optimize.jpg
Click image to enlarge.

4

Folders containing any source files found outside of the project folder (<your_project_name>.X) need to be added to the compiler include directories. Your project's "src" and "src/system_config" folders will be added.

  1. Click the xc32-gcc category in the Project Properties dialog.
  2. Select Preprocessing and messages from the Options category pull-down list.
  3. Click the […] button located next to Include Directories
  4. Click Browse in the Include Directories dialog.
  5. Navigate to the <install-dir>/apps/<your_project_name>/firmware/src folder
  6. Click Open
  7. Click Browse in the Include Directories dialog.
  8. Navigate to the <install-dir>/apps/<your_project_name>/firmware/src/system_config folder
  9. Click Open
compiler_include.jpg
Click image to enlarge.

5

Change the compiler's linker setting to remove unused sections.

  1. Click the xc32-ld category in the Project Properties dialog.
  2. Select General from the Options category pull-down list.
  3. Check the box beside Remove unused sections
xc32_prop_linker.jpg
Click image to enlarge.

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