SINE/COSINE ON THE TMS320C2XX

Sine-wave generators are fundamental building blocks of signal processing systems for use in control applications. This application note describes two different methods for implementing a digital Sine wave generator using the TMS320C2xx. The first method is a fast direct table look-up with linear interpolation to provide Sine waves with a minimum harmonic distortion. The second method realizes the Sine/Cosine functions with a mathematical series.

Two methods respond to different constraints. The table look-up method is fast, with minimum error solution and is important in ROM. The second method is fast with minimum precision and minimum program (ROM) solution.

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