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µVision4 User's Guide

About µVision User Interface Creating Applications Utilities Debugging Using the Debugger Simulation Start Debugging Application Program Execution Debug Windows and Dialogs Breakpoints Window Call Stack and Locals Window Code Coverage Command Window Disassembly Window Event Viewer Execution Profiler Instruction Trace Window Logic Analyzer Setup Setup in Detail Restrictions Using the Logic Analyzer Memory Map Memory Window Performance Analyzer Registers Window Serial Window Symbols Window System Viewer Adding System Viewer Windows Toolbox Trace Data Window Trace Navigation Watch Window Expressions Constants System Variables Peripheral Variables I/O Ports Serial Ports Program Variables (Symbols) Fully Qualified Symbols Non-Qualified Symbols Literal Symbols Using Symbols Line Numbers Bit Addresses Type Specifications Operators Memory Type Specifiers Differences Between µVision4 and C Expression Examples Cortex-M Code and Data Trace Trace Features Tracepoint Expressions Tracepoint Intrinsics Tracepoint Limitations Configuring the Trace Hardware Tracepoint Marks Tips and Tricks Review Peripherals and CPU Configuration Simulate I/O Ports Simulate Interrupts and Clock Inputs Simulate external I/O Devices Assign Serial I/O to a PC COM Port Check Illegal Memory Access Command Input from File Preset I/O Ports or Memory Contents Write Debug Output to a File Keyboard Shortcuts TPIU Initialization after RESET (Cortex-M) Debug Commands Debug Functions Simulation Flash Programming Dialogs Example Programs Command Line Appendix

µVision4 User's Guide

Command Window

The Command Window shows generic debug output information and allows entering debug and trace commands and functions to interact with the Debugger.

Output Window — Command

Use expressions to view and modify the value of variables, or registers, or memory locations. For example, type the following commands:

Command Effect
R7 = 12 Assign the value 12 to register R7.
CPSR Display the CPSR register.
time.hour Displays the member hour of the time structure.
time.hour++ Increments the member hour of the time structure.
index = 0 Assigns the value 0 to index.

Invoke debug functions by entering the function name along with the function arguments. For example:

Mix_Sine (300,2000)             // your debug function

Debug Function Example

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