11.2.3. CMSIS-DSP

Try these first

1. 1.

   What is an algorithm used for in DSP?

   Hint

   Consider how signals are analyzed.

2. 2.

   Explain the importance of using optimized functions in embedded systems.

   Hint

   Think about resource management.

3. 3.

   What does CMSIS-DSP stand for?

   • Cortex Mixed Signal Digital Processing
   • Cortex Microcontroller Software Interface Standard Digital Signal Processing
   • Core Microcontroller Signal and Digital Processing

   Hint

   Remember the context of DSP integration in ARM.

4. 4.

   True or False: CMSIS-DSP only supports audio applications.

   • True
   • False

   Hint

   Think about other signal processing areas discussed.

5. 5.

   Given a set of audio samples that have been corrupted by noise, outline how you would use CMSIS-DSP to filter out this noise.

   Hint

   Consider the type of filter best suited for the noise.

6. 6.

   Discuss the impact of using CMSIS-DSP on the battery life of an embedded device during signal processing tasks.

   Hint

   Think about the relationship between processing speed and energy use.