µVision4 User's GuideAbout µVision User Interface Creating Applications Utilities Debugging Debug Commands ASM ASSIGN BreakAccess BreakDisable BreakEnable BreakKill BreakList BreakSet COVERAGE DEFINE DIR Display Enter EVALuate EXIT FUNC Go INCLUDE KILL LOAD LOG LogicAnalyze MAP MODE Ostep PerformanceAnalyze Pstep RESET SAVE SCOPE SET SIGNAL SLOG Tstep Unassemble WatchSet WatchKill TraceAccessPoint TraceDataPoint TraceDisable TraceEnable TraceHalt TraceKill TraceList TraceRun (ETM) TraceSuspend (ETM) ITMLOG IRLOG Debug Functions Simulation Flash Programming Dialogs Example Programs Command Line Appendix
The BreakSet command sets a breakpoint for the specified expression (exp). Breakpoints are program addresses or expressions that, when true, halt execution of your target program or execute a specified command.
Breakpoint types are categorized using the following rules:
The following breakpoint is valid:
BS WRITE time.sec /* Valid expression */
The following breakpoint is invalid because adding two values (timer.sec and i0) does not result in a memory type:
BS WRITE time.sec + i0 /* Invalid expression */
The following example sets an execution breakpoint on the address of the main function.
The following example sets an execution breakpoint on the address of the timer0 function. The breakpoint occurs and the command "MyRegs()" is executed only after the 10th invocation of timer0. Program execution continues after the command executes.
The following example sets a conditional breakpoint on the sindex symbol. When sindex is equal to 8, program execution halts.
>BS sindex == 8
The following example sets a conditional breakpoint on the save_record array. Program execution halts on the third time save_record.time.sec is greater than 5.
>BS save_record.time.sec > 5, 3
The following example sets a memory access breakpoint on READ accesses of the interval.min symbol. Program execution halts when the min element of the interval structure or union is 3.
>BS READ interval.min == 3
The following example sets a memory access breakpoint on WRITE accesses to the savefirst symbol. Program execution halts when savefirst is 5 and the accumulator (acc) is 0x12 after savefirst is written.
>BS WRITE savefirst == 5 && acc == 0x12
The following Cortex-M example sets an execution breakpoint on line 136 of the file STM32F10x.s. The file is specified with a relative path name. The application name is cpp_template. Program execution halts before the code line 136 is executed.
>BS \\cpp_template\../../source/RVCT/STM32F10x.s\136, 1