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C240X系列DSP定点数学函数库的应用 被引量:1

Application of Fixed Point Math Library for C24X DSP
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摘要 定点DSP在做浮点运算时效率不高,影响了定点DSP的应用。TI公司推出针对C24X系列DSP的qmath数学函数库,用定点算法优化实现了常用的一些数学函数。本文介绍了该数学函数库的使用方法和要注意的问题,并在相同硬件条件下进行了执行定点函数和浮点函数的对比实验,结果表明合理使用定点数学函数可以显著提升C语言DSP程序的执行效率,对定点DSP应用系统的高级语言开发有很大帮助。 The fixed point DSP is always criticized for its poor performance on float point calculation,which exerts negative influence on the application of fixed point DSP.So Texas Instruments Inc put forward a math library of fixed point called qmath,which realized some useful math functions in fixed point arithmetic.It is demonstrated by experiments that the improvement of performance by applying these fixed point functions is very obvious.
出处 《河南科技大学学报(自然科学版)》 CAS 2005年第5期49-51,共3页 Journal of Henan University of Science And Technology:Natural Science
基金 河南省重大科技攻关资助项目(991140313)
关键词 数字信号处理 定点 浮点 数学函数库 DSP Fixed point Float point Qmath
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  • 1[1]TMS320C6000 Assembly Language Tools User's Guide.Texas Instruments Incorporated,2001.
  • 2[2]TMS320C6000 Optimizing C Compiler User's Guide .Texas Instruments Incorporated,2001.
  • 3[3]TMS320C6000 Programmer's Guide.Texas Instruments Incorporated,2001.
  • 4[4]TMS320C6000 CPU and Instruction Set Reference Guide.Texas Instruments Incorporated,2001.
  • 5[2]Texas Instruments. TMS320LF240x-A Flash Programming:Serial Port Flash Programming Utility [EB/OL]. 2000
  • 6[3]Texas Instruments. TMS320LF/LC240xA DSP Controllers Reference Guide:System and peripherals[EB/OL]. 2001
  • 7[4]Texas Instruments. TMS320LF/LC240xA DSP Controllers Reference Guide: CPU and Instruction Set[EB/OL]. 1999
  • 8TMS320F/C24X DSP Controllers Reference Guide (CPU and Instruction Set)[Z]. Texas Instruments, 2001.
  • 9Texas Instruments, TMS320F240 DSP Solution for Obtaining Resolver Texas Insruments, Angular Position and Speed [Z].(SPRA605), February 2000. Implementation of a Speed Field Oriented Control of3 - phase PMSM Motor using TMS320F240[Z]. (SPRA588),1999
  • 10Texas Instruments, Field Orientated Control of Three phase AC - motors[Z]. (BPRA073), December 1997

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