MATLAB REAL-TIME WORKSHOP EMBEDDED CODER - S Manuale Utente Scaricare il pdf (Pagina 28)

supported by TargetLink: the user can either generate a separate structure for

every parameter set or generate an array of structures containing all instances.

Those structures can have as many parameters as the memory allows and no

limitation is set for how large the structures can be. The following example shows

three parameters and two parameter sets in two separate structures:

In the generated code the parameter sets are accessed by a pointer which refers to

the selected parameter set structure. The following code example shows how the

parameter set structures are used in the generated code:

It is a simple task for the user of TargetLink to make a parameter calibratable. The

right class should be chosen for the calibratable parameter in question. TargetLink

has predefined classes that make variable calibration possible. The variables are

written into a ASAM-MCD 2MC file. ASAM-MCD 2MC, formerly known as

ASAP2, is a commonly used standard for describing ECU-internal data. The

standard was developed by ASAM e.V. which stands for Association for

Standardization of Automation and Measuring Systems e.V. ASAM-MCD 2MC

files contain the information required by an MC system to access an ECU for

parameter calibration.

Vca DV tp Vca DVA =

{

}; /* for data variant item A */

Vca_DV_tp Vca_DVB = {

}; /* for data variant item B */

switch(varID)

{

case 1: {

pVca_DV = &Vca_DVA;

break;

}

case 2: {

pVca_DV = &Vca_DVB;

break;

}

default: {

pVca_DV = &Vca_DVA;

break;

}

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MATLAB REAL-TIME WORKSHOP EMBEDDED CODER - S Manuale Utente Pagina 28