MATLAB XPC TARGET 4 - DEVICE DRIVERS Spezifikationen PDF herunterladen (Seite 44)

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101

2 RS232 I/O Support

2-14

Note Field names in the structures are case sensitive.

RS232_Send_Receive(1).SendData = ’da_1234,%d,%f,;\n’;

RS232_Send_Receive(1).InputPorts = [1 2];

RS232_Send_Receive(1).RecData = ’noerror\n’;

RS232_Send_Receive(1).OutputPorts = [1];

RS232_Send_Receive(1).Timeout = 0.01;

RS232_Send_Receive(1).EOM = 1;

3 From the File menu, click Save As. In the Save as file dialog box, enter the

name of the M-file script. For example, enter

RS232_Messages.m

4 Close the text editing window.

5 In the MATLAB command window, type the name of the M-file script you

created with the RS-232 structures. For example, type

RS232_Messages

MATLAB loads and runs the M-file script to create the message structures

in the MATLAB workspace needed by the RS-232 driver blocks.

6 Open your Simulink model, or press Ctrl+D.

Simulink updates the RS-232 driver blocks with the information from the

structures. For example, Simulink adds inputs and outputs defined in the

structures to the blocks.

7 Connect the input and output ports on the RS-232 driver blocks to other

blocks in your Simulink model.

You model should look similar to the figure shown below.

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