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Infineon AURIX: How to record trace to a breakpoint?

17-Jun-2024

Timestamp messages can fill a lot of (or entire) trace buffer after the CPU reaches a breakpoint but before the debugger detects that the CPU has stopped.

Possible solution: 

Use case is based on TC399XE, therefore for other CPU different events can be used. 

1. Make sure that the core synchronization is active. 

2. Create a new trace configuration via the Wizard. 

3. Select Manual Trigger/Recorder configuration (in Analyzer Configuration dialog / Configure / Recorder) and click Configure...

4. On the Recorder tab select the Continuous mode. 

5. On the MCDS tab, select your core of interest to be observed by POB X.

6. Configure POB X (TriCore X tab) as shown below.

7. Find an event that references dcu_sus (debug status and control trace unit suspend) and selected inverted (!dcu_sus).  Click on EVT9 and enable dcu_sus. Both checkboxes should be enabled. 

8. Map the event to tc_act_0.





9. On the MCX tab map tcx_act_0 (which is connected to !dcu_sus) to tsu_rel_en. This means only generated timestamps while the CPU is not suspended.

 




10. Start trace and stop the CPU via breakpoint or manually. The Analyzer stays in WAITING mode until the stop event and winIDEA reads out the data. The configuration of tsu_rel_en is necessary because otherwise the MCDS would continue to generate trace messages after the CPU is stopped. That fills the trace buffer with messages and actual data is not seen. 

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