C18

The MPLAB® C Compiler for PIC18 MCUs (C18 toolchain) is an end-of-life product. Please use the MPLAB XC8 C Compiler (XC8 toolchain) for new designs.

The required macros for this toolchain are:

  • MP_PROCESSOR_OPTION
  • MP_CPP
  • MP_PROCESSOR_OPTION_LD
  • MP_LINKER_DEBUG_OPTION

A different processor option for the linker (MP_PROCESSOR_OPTION_LD) is included, since the linker takes different strings than the mcc18 compiler. The linker likes all small caps.

See MPASM for an explanation of MP_LINKER_DEBUG_OPTION usage.

The optional macros for this toolchain are:

  • MP_EXTRA_AS_PRE
  • MP_EXTRA_LD_PRE (for stand alone project)
  • MP_EXTRA_AR_PRE (for library project)
  • MP_EXTRA_CC_PRE
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