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Proteus DISCUSSION
Proteus 9.2 documents GDB-compatible debugging for Cortex-M simulation, including use from STM32CubeIDE. How should this fit into an STM32 validation workflow?
If a timer interrupt and UART exchange work while source-stepping in the simulator, what remains to be checked on hardware? In particular, how can breakpoints hide a problem that occurs during continuous execution?
Reference: Labcenter: Proteus 9.2 release notes (https://www.labcenter.com/whatsnew/9.2/).
Source debugging is useful for checking control flow, register configuration and variable values against a supported simulation model. Confirm that the loaded executable matches the source and build options you are viewing. Start with one peripheral and a known clock configuration. A successful debug connection proves that the tools communicate; it does not establish that every peripheral behavior is modeled.
Repeat timing tests without breakpoints. Halting execution changes scheduling and can alter the relationship between firmware, simulated time and peripheral activity depending on the debugger and model. Log events into a bounded buffer or toggle a diagnostic pin instead. Compare the intended timer period with a waveform measurement and test for missed data when interrupts occur close together.
The physical board still needs checks for oscillator configuration, supply startup, reset behavior, signal levels and external-device timing. For UART, inspect the real bit period and framing; for a timer-driven output, measure jitter under the actual interrupt load. Simulation narrows the search, while hardware measurements test the electrical implementation and the behaviors that the model may simplify.
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