FreeRTOS - Debugging and Monitoring
You added trace hooks but see no data in FreeRTOS+Trace viewer. What is a likely cause?
You added trace hooks but see no data in FreeRTOS+Trace viewer. What is a likely cause?
medium📝 Debug Q14 of 15
Step-by-Step Solution
Solution:
Step 1: Check configUSE_TRACE_HOOKS setting
If this is not set to 1, trace hooks do not run, so no data is recorded.Step 2: Verify other options
Calling vTraceEnable twice or starting scheduler early usually does not prevent data. Viewer missing is unrelated to data generation.Final Answer:
configUSE_TRACE_HOOKS is not set to 1 in FreeRTOSConfig.h -> Option AQuick Check:
Trace hooks disabled = no data [OK]
Quick Trick: Always enable configUSE_TRACE_HOOKS = 1 [OK]
Common Mistakes:
- Forgetting to enable trace hooks in config
- Blaming viewer instead of config settings
- Assuming multiple vTraceEnable calls cause issues
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