MATLAB XPC TARGET 4 - IO Guide de l'utilisateur télécharger pdf (Page 58)

3 Network Communication

3-24

between two Simulink models. When one or both of the systems is running

Simulink in non real-time, care must be taken to set the sample time properly.

Our hypothetical models are called Model A and Model B. Two different sets of

data are transferred between these two models. One set from Model A to

Model B and another set in the opposite direction.

The data to transfer is in the following order:

Model A to Model B

•

uint8 (3x3)

•

int16 (1x1)

•

double (2x4)

Model B to Model A

•

single (4x1)

•

double (2x2)

•

uint32 (2x2)

•

int8 (5x3)

For the purposes of this example, all the models are generated using Simulink

Constant blocks that use the MATLAB random number function (rand). The

random numbers are generated by Real Time Workshop using this function at

the time of code generation. To generate the vector of

uint8 (3x3), use the

MATLAB function.

uint8(255 * rand(3,3))

since 255 is the maximum value for an unsigned 8-bit integer. The other values

are generated similarly.

With this setup, construct the send side of modelA.

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MATLAB XPC TARGET 4 - IO Guide de l'utilisateur Page 58