The ARM Cortex-M3 combined with a Fast Fourier Transform (FFT) implementation is a powerful, embedded digital signal processing (DSP) solution. The ARM Cortex-M3 is a mid-range microcontroller architecture with clock speeds over 100MHz and a powerful arithmetic logic unit (ALU). The FFT, a useful tool in many DSP applications, utilizes these features enabling the ARM Cortex-M3 to be a suitable replacement for dedicated DSP’s in some embedded applications.
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