MATLAB SIMULINK 7 - DEVELOPING S-FUNCTIONS Guide de l'utilisateur télécharger pdf (Page 158)

3 Writing S-Functions As C-MEX files

3-114

ssGetNumDiscStates(S)

Canbeusedinanyroutine(exceptmdlInitializeSizes)to

determine the number of discrete states your S-function i s

using.

ssGetRealDiscStates(S)

Canbeusedinthesimulationloop,mdlInitializeConditions,

mdlStart routines to get the real_T discrete state vector.

This vector has length

ssGetNumDiscStates(S). Typically, this

vector is initialized in

mdlInitializeConditions, updated in

mdlUpdate, and used in mdlOutputs.

ssGetNumRWork(S)

Canbeusedinanyroutine(exceptmdlInitializeSizes)to

determine the number of real work vector elements your

S-function is using.

ssGetRWork(S)

Canbeusedinthesimulationloop,mdlInitializeConditions,

mdlStart routines to get the real_T work vector. This vector

has length

ssGetNumRWork(S). Typically, this vector is

initialized in

mdlStart or mdlInitializeConditions, updated

mdlUpdate, and used in mdlOutputs.

ssGetNumIWork(S)

Canbeusedinanyroutine(exceptmdlInitializeSizes)to

determine the number of integer work vector elements your

S-function is using.

ssGetIWork(S)

Canbeusedinthesimulationloop,mdlInitializeConditions,

mdlStart routines to get the int_T work vector. This vector

has length

ssGetNumIWork(S). Typically, this vector is

initialized in

mdlStart or mdlInitializeConditions, updated

mdlUpdate, and used in mdlOutputs.

ssGetNumPWork(S)

Canbeusedinanyroutine(exceptmdlInitializeSizes)to

determine the number of pointer work vector elements your

S-function is using.

Table 3-10: State and Work Vector SimStruct Macros (Continued)

Macro Description

1 2 ... 153 154 155 156 157 158 159 160 161 162 163 ... 209 210

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