Chapter 1

Introduction

The Texas Instruments TMS320C55x DSP Library (DSPLIB) is an optimized DSP Function Library for C programmers on TMS320C55x devices. It includes over 50 C-callable assembly-optimized general-purpose signal processing routines. These routines are typically used in computationally intensive realtime applications where optimal execution speed is critical. By using these routines you can achieve execution speeds considerable faster than equivalent code written in standard ANSI C language. In addition, by providing ready-to- use DSP functions, TI DSPLIB can shorten significantly your DSP application development time.

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DSP Routines

1.1 DSP Routines

The TI DSPLIB includes commonly used DSP routines. Source code is provided to allow you to modify the functions to match your specific needs.

The routines included within the library are organized into eight different functional categories:

-Fast-Fourier Transforms (FFT)

-Filtering and convolution

-Adaptive filtering

-Correlation

-Math

-Trigonometric

-Miscellaneous

-Matrix

1.2Features and Benefits

-Hand-coded assembly optimized routines

-C-callable routines fully compatible with the TI C55x compiler

-Fractional Q15-format operand supported

-Complete set of examples on usage provided

-Benchmarks (time and code) provided

-Tested against Matlab scripts

1.3DSPLIB: Quality Freeware That You Can Build On and Contribute To

DSPLIB is a free-of-charge product. You can use, modify, and distribute TI C55x DSPLIB for usage on TI C55x DSPs with no royalty payments. See

Licensing and Warranty, section 6.1, and Where DSPLIB Goes from Here, section 3.7, for details.

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