MPLAB® Code Coverage Overview

These help topics refer to MPLAB® Code Coverage v1.00 supported by MPLAB X IDE v5.25.

MPLAB Code Coverage (SW006026-COV) is an MPLAB XC C compiler add-on license that provides visibility as to what portions of your code are being executed. In MPLAB X IDE, execute your test cases to completion to see:

  • Editor text highlighted by colors representing the coverage.
  • A Code Coverage tab with a report displaying percentages of code covered.

The information displayed in the IDE may be written to an HTML Report for later viewing.

Compared to trace, code coverage differs in the following ways:

  • Trace indicates when and how many times each line of code was executed.
  • Code coverage indicates which portions of code have or have not been executed.
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Figure 1: Code Coverage in MPLAB X IDE
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