Breakpoints in IAR

Note

IAR reserves one comparator for instruction stepping.

To toggle a breakpoint, do any of the following.

  • Single-click the area to the left of the line number.

  • Go to the line and press F9 to toggle breakpoint

  • Right-click on the line and select Toggle Breakpoint (Code).

A breakpoint looks like this:

../_images/iar_breakpoint_ex.png

Breakpoint on PIN_init(). Debugger halted at start of main().

For an overview of the active and inactive breakpoints, click View → Breakpoints.

../_images/iar_breakpoint_list.png

List of breakpoints. Right-click to edit options, or de-select to deactivate.

To set a conditional break, do as follows.

  1. Right-click the breakpoint in the overview.

  2. Choose Edit….

When debugging, Skip Count and Condition can help skip a number of breaks or only break if a variable is a certain value.

Note

Conditional breaks require a debugger response and may halt the processor long enough to break an active RF connection, or otherwise disrupt timing on the debug target.