11.7. Debugging and Testing CMSIS Drivers

Try these first

1. 1.

   What does JTAG stand for?

   Hint

   Think about standards in electronics testing.

2. 2.

   What is unit testing?

   Hint

   Consider how you test small parts of a whole application.

3. 3.

   What does SWD stand for?

   • Scalable Wire Debug
   • Serial Wire Debug
   • Standard Wire Debug

   Hint

   Think about how the abbreviation is constructed.

4. 4.

   True or False: Unit testing helps confirm that drivers work correctly when integrated.

   • True
   • False

   Hint

   Reflect on the different types of testing.

5. 5.

   Develop a unit test strategy for a UART driver that includes initialization, transmission, and reception. What tests would you include?

   Hint

   Think about each operation the driver must perform.

6. 6.

   Explain how you would optimize a CMSIS driver based on your monitoring results showing high access frequency on a particular pin.

   Hint

   Consider how frequency relates to resource usage.