Using the debugger

uVision5 provides a debugger that allows us to suspend execution (by inserting a breakpoint), and examine/change values of variables used in our program.

How to do it…

1. Download and run the previous project, debug_ADC.

2. Use the debug menu to insert a breakpoint on line 96 of our program (that is, at the statement ADC_StartConversion ( );.

   

3. Select debug → Start/Stop Debug session to start a debug session.

4. Observe that execution stops at main. This is because the default project debug options are set to "Run to main".

   

5. Selecting Run (F5) will execute the statements up until the breakpoint.

6. Use Step (F11) to execute the statements in the program one after the other, and observe the values of variables. For example, when we reach line 39 (after stepping), the local variable ADCvalue is assigned to 10 (0x0000000A). This value is shown in the Call Stack + Locals window.

   

See also

This chapter has introduced many more programming concepts than would normally be covered in the first few chapters...