Practical DSP for the Cortex-M4
This chapter looks at the DSP capabilities of the Cortex-M4. How best to use the DSP intrinsic functions for custom algorithms. ARM also publishes a free DSP library, and this chapter will look at implementing an FFT as well as Infinite Impulse Response (IIR) and Finite Impulse Response (FIR) filters. Techniques for creating real-time DSP applications within an RTOS framework are also presented. The Cortex-M4 may also be fitted with a single precision FPU; it is important to understand how it has been implemented alongside the main Cortex CPU.
Introduction
The Cortex-M4 is the most powerful member of the Cortex-M processor family. While the Cortex-M4 has the same features and performance level of 1.25 DMIPS/MHz ...
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