Data and Event Trace
All Cortex-M3 and Cortex-M4 devices provide data and event trace. MDK-ARM provides a number of ways to analyze this information while your system is running:
- Trace Window - Displays program flow by capturing timestamps, PC samples, exceptions, and Read/Write accesses
- Debug Viewer - Displays the printf-style output of the Instrumented Trace (ITM) in a terminal window
- Exceptions window - Displays statistical information about program exceptions and interrupts
- Event Counters - Display real-time values of specific event counters providing performance indications
- Logic Analyzer - Graphically displays variable changes in captured data trace
- RTX Event Viewer - display RTX Kernel task switching events and statistics on a time scale.
Data and Event Trace Windows provide information from the running target for program data, exceptions, variables, and printf-style outputs
Cortex-M series processor-based devices with ETM provide instruction trace. The Keil ULINKpro streams instruction trace directly to your PC, enabling debugging of historical sequences, execution profiling, performance optimization, and code coverage analysis.
- Real-Time Trace features are only available in MDK 4.02 or higher and are not support by ULINK1.
- Data and Event Trace is available with ULINKpro, ULINK2, or ULINK-ME.
- Instruction Trace is only available with ULINKpro.