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Technical Support
On-Line Manuals
µVision3 User's Guide
µVision3 Overview
User Interface
Creating Applications
Utilities
Debugging
Using the Debugger
CPU Simulation
Start Debugging
Application Program Execution
Debug Windows and Dialogs
Breakpoints
Code Coverage
CPU Registers
Disassembly Window
Logic Analyzer
Setup
Setup in Detail
Restrictions
Memory Window
Memory Map
Output Window - Command
Debug Commands
Variables and Registers
Debug Functions
Execution Profiler
Performance Analyzer
Serial Window
Symbol Window
Toolbox
Watch Window
Expressions
Constants
System Variables
Peripheral Variables
I/O Ports
Serial Ports
Program Variables (Symbols)
Line Numbers
Bit Addresses
Type Specifications
Operators
Differences Between µVision3 and C
Expression Examples
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 Accesses
Command Input from File
Preset I/O Ports or Memory Contents
Write Debug Output to a File
Keyboard Shortcuts
Debug Commands
Debug Functions
Simulation
Flash Programming
Dialogs
Example Programs
Command Line
Appendix
Simulate I/O Ports
µVision3 provides dialogs that show the status of all I/O ports. The I/O Pins are represented with VTREGs. You may use this VTREGs also together with signal functions or breakpoints as shown in the following example program.
µVision3 provides dialogs that show the status of all I/O ports. The I/O Pins are represented with VTREGs. You may use this VTREGs also together with signal functions or breakpoints as shown in the following example.
// in your C user program PortAvalue = PIOA_PDSR; // read Port A input
Breakpoints that you define in the µVision3 simulator:
bs write PORT3, 1, "printf (\"Port3 value=%X\\n\", PORT3)" bs read PORT5, 1, "PORT5 = getint (\"Input Port5 value\")"
When you execute your C program, µVision3 asks you for a Port5 input value. If a new output value is written to Port3, a message is printed in the Output Window — Command page. Refer to CPU Pin Registers (VTREGs).
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