CS452 - Real-Time Programming - Fall 2010

Lecture 11 - Debugging

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Why is debugging hard?


What's good

What's bad


What's good

What's bad

Busy-wait IO

Good for early-stage debugging

Bad when the real-world comes into the computation

Stack Trace

In single-threaded programs this is often the most useful tool.

What is the equivalent of a stack trace in a multi-tasking environment?


What does it do?

How do you get it started?

Breakpoint is a special case of a particular sort of tool that is very common.

Getting information closer to real-time.


Circular buffer somewhere

How do you read it?

  1. Write it in English
  2. Write it in code

What are the advantages and disadvantages of each?

Use Bits

Fast Interrupts

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