MATLAB XPC TARGET 4 - DEVICE DRIVERS User's Guide download pdf (Page 46)

4 Masking Drivers

This example returns a string to display on the block with the variable

port_label commands with which to label the input and output ports. The

number and content of the

port_label commands depend on the cha nnel

vector

that the u ser enters in the mask.

5 Select the Documentation tab. This tab contains three fields, Mask type,

Mask description,andMask help.

In the Mask type field, enter the type of driver. F or example:

addiamondmm32

In the Mask description field, enter a description for the driver. For

example:

MM-32

Diamond

Analog Input

In the Mask help field, if you are providing any online docume n ta t ion to

associate with the Help button, you can call that online documentation

from this field. See in the “W orking with Block Masks” chapter of Simulink

User’s Guide for details.

6 Click OK to save the mask.

After you create the block m ask, you can define an

InitFcn callback for the

block. A model calls this callback at the start of model simulation.

1 Right-clicktheblockandselectBlock Properties from the drop-down list.

2 Select the Callback tab from the dialog. From the list, select InitFcn.

Enter MATLAB code in the edit box.

Oneconventionistousethesamefunctionthatisusedatmask

initialization time (for example,

maddiamondmm32.m), but with a singl e

argument that indicates that this is being called at

InitFcn time.

maddiamondmm32(1)

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MATLAB XPC TARGET 4 - DEVICE DRIVERS User's Guide Page 46