8 Known Issues

  • XC8 Compiler v2.20 until v2.36 with “Enable Debug Messages” option unchecked: Project compilation is successful using optimization level 1, 2 (free) and level s (pro). Optimization level 0 (free) and 3 (pro) is not supported.
  • XC8 Compiler v2.20 until v2.36 with “Enable Debug Messages” option checked: Project compilation is successful using optimization level s (pro). Optimization level 0 (free), 1(free), 2 (free)and 3 (pro) is not supported.
  • XC8 Compiler v2.40 and later: Project compilation under any optimization option will fail.
    • Workaround: Use XC8 Compiler between v2.20 and 2.36, inclusive.
  • AVR GNU Toolchain v3.62 with either “Enable Debug Messages” option checked or unchecked: Project compilation is successful using optimization level 1, 2 (free) and level s (pro). Optimization level 0 (free) and 3 (pro) is not supported.
  • When upgrading to MPLAB X v6.05/MCC v5.2 on an existing MCC Classic configuration it may be neccessary to update your MCC libraries for some GUIs to display properly.

    Workaround:

    • Open the MCC configuration.
    • Open the Content Manager from the Device Recources pane.
    • In the Content Manager press "Select Latest Versions" button followed by "Apply" button and it will automatically update all libraries.
    • Restart MCC.
    Note: You need to have internet access to perfom the updates.