【正文】 e used to control each kind of electrical machinery in the industry, the electric power, electronic installation, the inversion and so on, no matter in military or in the civil system, it has all played the positive role. This article first has made the simple introduction to the PWM profile generator basic principle and the present domestic and foreign development condition, then introduced based on the digital signal processing (DSP) application system development flow, and has made the prehensive introduction to the DSP related knowledge, finally aimed at present in the development condition and the practical life application proposed based on the DSP PWM profile generator design method. This paper has pleted the basic hardware circuit design and the software arithmetic design. The hardware design aspect, according to the DSP chip related characteristic, this paper adopted the LF2407 of DSP chip to achieve the hardware circuit design. The software algorithm aspect, according to request, it adopted the assembly language to carry on the programming, and has produced the related source program as well as the debugging process, finally has carried on the analysis to this design feasibility and the performance error. Key words profile generator, LF2407 chip, pulsewidth modulation (PWM) digital signal processing(DSP) 攀枝花學院本科畢業(yè)設計（論文） 目錄 1 目 錄 摘 要 ......................................................................................................................... ...Ⅰ ABSTRACT ................................................................................................................ Ⅱ 1 緒論 ............................................................................................................................ 1 引言 ................................................................................................................... 1 課題背景 ............................................................................................................ 1 PWM波形發(fā)生器簡介 ................................................................................ 1 PWM波形發(fā)生器的研究發(fā)展狀況 ............................................................... 2 課題的研究目的和意義 ............................................................................ 3 本文的主要研究內容 ................................................................................ 3 2 DSP 開發(fā)流程 ............................................................................................................ 4 DSP簡介 ............................................................................................................ 4 DSP開發(fā)方案的設計與選擇 ................................................................................ 5 DSP系統(tǒng)的功能需求分析 ......................................................................... 5 DSP算法的驗證與模擬 ............................................................................. 6 DSP開發(fā)工具的 選擇 ................................................................................ 6 DSP系統(tǒng)調試 ........................................................................................... 7 DSP系統(tǒng)設計開發(fā)流程 ....................................................................................... 7 DSP處理器軟、硬件開發(fā)工具簡介 ...................................................................... 9 3 PWM 波形發(fā)生器的設計方法 .................................................................................. 12 常見的設計方法簡介 ........................................................................................ 12 等脈寬 PWM法 ........................................................................................ 12 隨機 PWM ................................................................................................ 12 非線性控制 PWM ..................................................................................... 13 等面積法 ............................................................................................... 13 硬件調制法 ............................................................................................ 13 空 間電壓矢量控制 PWM ........................................................................... 13 矢量控制 PWM ......................................................................................... 14 單元脈寬調制法 ..................................................................................... 14 本文所采用的設計方法 .................................................................................... 15 4 PWM 波形發(fā)生器的硬件設計 .................................................................................. 17 PWM波形發(fā)生器硬件結構 .................................................................................. 17 PWM波形產生原理 .................................................................................. 17 TMS320LF2407的介紹 ............................................................................. 17 系統(tǒng)硬件組成 ........................................................................................ 18 PWM波形產生器的 DSP電路設計 ....................................................................... 20 5 PWM 波形發(fā)生器的軟件設計 .................................................................................. 22 主程序流程圖 .................................................................................................. 22 PWM波形產生器的 DSP程序設計 ....................................................................... 22 采用通用定時器 GPT1產生 PWM波形 ....................................................... 23 程序說明及仿真結果 .............................................................................. 30 總結 .................................................................................................................... 33攀枝花學院本科畢業(yè)設計（論文） 目錄 2 結論 ........................................................................................................