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µVision User's Guide

About µVision User Interface Creating Applications Debugging Start Debugging Start Energy Measurement without Debug Application Program Execution Debug Windows and Dialogs Breakpoints Window Call Stack and Locals Window Code Coverage Command Window Component Viewer Disassembly Window Event Recorder Setup Event Recorder Event Recorder Window Events Filtering Event Statistics Window Event Viewer Execution Profiler Instruction Trace Window System Analyzer Usage tips Restrictions Logic Analyzer Setup Setup in Detail Restrictions Cortex-M Trace Configuration Memory Map Memory Window Performance Analyzer Registers Window Serial Window Debug (printf) Viewer Symbols Window System Viewer Adding System Viewer Windows System and Thread Viewer Thread States Toolbox Trace Data Window Trace Navigation Trace Exceptions Event Counters ULINKplus Window Watch Window Core Peripherals Cortex-M0 and Cortex-M0+ Nested Vector Interrupt Controller System Control and Configuration System Tick Timer Fault Reports (Cortex-M0+ only) Cortex-M3, Cortex-M4, and Cortex-M7 Nested Vector Interrupt Controller System Control and Configuration System Tick Timer Fault Reports Memory Protection Unit Cortex-M23 and Cortex-M33 Nested Vector Interrupt Controller System Control and Configuration System Tick Timer Fault Reports Memory Protection Unit Security Attribution Unit Debug Scripting 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 Differences between µVision and C Expression Examples Code and Data Trace (Cortex-M) Trace Features Configuring Trace Tracepoint Expressions Tracepoint Intrinsics Tracepoint Limitations 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) Prevent Opening Files Show Japanese Messages Debug Commands Debug Functions Simulation Flash Programming Dialogs Utilities Command Line Example Programs Appendix

Command Window

The Command window shows generic debug information and allows you to enter debug commands and debug functions to interact with the program.

The syntax generator displays matching commands, options, and parameters. The list of likely commands is reduced to coincide with the typed characters. Use only the CAPITAL letters displayed in the help of the window. The letters can be typed in lower or upper case into the command-line.

By typing B, the syntax generator reduces the list of possible commands.




Further use: bd, be, bk, or bl.
Syntax Generator Example 1
Command options are shown when the typed command is identified clearly.




Further use: read, write, or readwrite
Syntax Generator Example 2
The syntax generator leads through the command entry and helps avoiding errors. Syntax Generator Example 3

Use expressions to view and modify the value of variables, symbols, 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

Note

  • To exit long running or hanging functions, position the cursor into the command-line of the window and press ESC.
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