恒潤(rùn)科技 一本很實(shí)用很詳細(xì)的S-FUNCTION函數(shù)編寫的工具書！ S-FUNCTION 概述................................................................................................................................... 1 什么是S-FUNCTION............................................................................................................................... 2 在模型中使用S-FUNCTION.................................................................................................................... 3 向S-Function 傳遞參數(shù)..................................................................................................................... 3 何時(shí)使用S-Function......................................................................................................................... 4 S-FUNCTION 的工作原理........................................................................................................................ 5 Simulink 塊的數(shù)學(xué)關(guān)系...................................................................................................................... 5 仿真過(guò)程............................................................................................................................................. 5 S-Function 回調(diào)程序.......................................................................................................................... 6 S-FUNCTION 的實(shí)現(xiàn)................................................................................................................................ 8 M-文件的S-Function........................................................................................................................ 8 MEX 文件的S-function ..................................................................................................................... 8 MEX 文件與M-文件的S-function 比較........................................................................................... 9 S-FUNCTION 的概念.............................................................................................................................. 10 直接饋通........................................................................................................................................... 10 動(dòng)態(tài)維矩陣....................................................................................................................................... 10 設(shè)置采樣時(shí)間和偏移量.....................................................................................................................11 S-FUNCTION 范例................................................................................................................................. 14 M 文件S-function 范例.................................................................................................................... 15 C S-Function 范例............................................................................................................................ 16 Fortran S-Function 范例.................................................................................................................. 18 C++ S-Function 范例....................................................................................................................... 18 Ada S-Function 范例....................................................................................................................... 18 編寫M S-FUNCTION............................................................................................................................. 19 概述....................................................................................................................................................... 20 S-Function 參數(shù)................................................................................................................................ 20 S-Function 的輸出............................................................................................................................ 20 定義S-FUNCTION 塊特性..................................................................................................................... 22 處理S-FUNCTION 參數(shù)......................................................................................................................... 22 M 文件的S-FUNCTION 范例................................................................................................................. 23 范例1——簡(jiǎn)單的M 文件S-Function ........................................................................................... 23 范例2——連續(xù)狀態(tài)S-Function .................................................................................................... 25 范例3——離散狀態(tài)S-Function .................................................................................................... 27 范例4——混合系統(tǒng)S-Function .................................................................................................... 28 范例5——變步長(zhǎng)S-Function ........................................................................................................ 31 ii 使用C 語(yǔ)言編寫S-FUNCTION ............................................................................................................. 33 概述....................................................................................................................................................... 34 創(chuàng)建C MEX S-Function.................................................................................................................. 35 自動(dòng)生成S-FUNCTION......................................................................................................................... 36 配置生成的S-Function.................................................................................................................... 37 S-Function Builder 如何生成S-Function...................................................................................... 37 設(shè)置include 路徑............................................................................................................................. 37 S-FUNCTION BUILDER 的對(duì)話窗........................................................................................................... 39 Initialization 選卡.............................................................................................................................. 39 Data Properties 選卡....................................................................................................................... 40 Libraries 選卡................................................................................................................................... 42 Outputs 選卡.................................................................................................................................... 43 Continuous Derivatives 選卡.......................................................................................................... 45 Discrete Update 選卡...................................................................................................................... 46 Build Info 選卡................................................................................................................................. 47 一個(gè)基本的C MEX S-FUNCTION 范例............................................................................................... 48 定義與包含....................................................................................................................................... 49 回調(diào)函數(shù)的實(shí)現(xiàn)................................................................................................................................ 50 Simulink/Real-Time Workshop 接口............................................................................................. 51 Building Timestwo 范例................................................................................................................... 51 C S-FUNCTION 模板.............................................................................................................................. 52 S-Function 源文件必需的內(nèi)容........................................................................................................ 52 SimStruct.......................................................................................................................................... 53 編譯C S-Function........................................................................................................................... 53 SIMULINK 如何與C S-FUNCTION 相互作用........................................................................................ 54 進(jìn)程層面........................................................................................................................................... 54 數(shù)據(jù)層面........................................................................................................................................... 56 編寫回調(diào)函數(shù)....................................................................................................................................... 59 將LEVEL 1 C MEX S-FUNCTION 轉(zhuǎn)換到LEVEL 2 .............................................................................. 60 創(chuàng)建C++ S-FUNCTION......................................................................................................................... 63 創(chuàng)建ADA S-FUNCTION........................................................................................................................ 64 創(chuàng)建FORTRAN S-FUNCTION.............................................................................................................. 65 實(shí)現(xiàn)塊特性............................................................................................................................................... 67 對(duì)話框參數(shù)........................................................................................................................................... 68 iii 可調(diào)參數(shù)........................................................................................................................................... 68 運(yùn)行參數(shù)............................................................................................................................................... 70 創(chuàng)建運(yùn)行參數(shù)................................................................................................................................... 70 更新運(yùn)行參數(shù)................................................................................................................................... 71 創(chuàng)建輸入和輸出端口............................................................................................................................ 72 創(chuàng)建輸入端口................................................................................................................................... 72 創(chuàng)建輸出端口................................................................................................................................... 73 輸入的標(biāo)量擴(kuò)展................................................................................................................................ 74 掩碼多端口S-Function.................................................................................................................... 75 自定義數(shù)據(jù)類型................................................................................................................................... 76 采樣時(shí)間............................................................................................................................................... 77 基于塊的采樣時(shí)間............................................................................................................................ 77 指定基于端口的采樣時(shí)間................................................................................................................ 79 基于塊與基于端口的混合采樣時(shí)間................................................................................................ 81 多速率S-Function 塊....................................................................................................................... 82 多速率S-Function 塊的同步........................................................................................................... 83 工作向量............................................................................................................................................... 84 工作向量與過(guò)零檢測(cè)........................................................................................................................ 85 包括指針工作向量的范例................................................................................................................ 85 內(nèi)存分配........................................................................................................................................... 86 FUNCTION-CALL 子系統(tǒng)........................................................................................................................ 87 錯(cuò)誤處理............................................................................................................................................... 89 防超程代碼....................................................................................................................................... 89 SsSetErrorStatus 的終止條件........................................................................................................ 90 數(shù)組邊界檢查................................................................................................................................... 90 S-FUNCTION 范例................................................................................................................................. 91 連續(xù)狀態(tài)的S-Function 范例........................................................................................................... 92 離散狀態(tài)的S-Function 范例........................................................................................................... 93 混合系統(tǒng)的S-Function 范例........................................................................................................... 93 變步長(zhǎng)的S-Function 范例............................................................................................................... 94 過(guò)零檢測(cè)的S-Function 范例........................................................................................................... 94 時(shí)變連續(xù)傳遞函數(shù)的S-Function 范例........................................................................................... 94