MATLAB XPC TARGET 4 - DEVICE DRIVERS Spécifications télécharger pdf (Page 45)

100

101

RS-232 Synchronous Mode

2-15

8 Set the pre-load function for your Simulink model to load the message

structures when you open your model. For example, if you saved the

message structures in the M-file

RS232_messages, type

set_param(gcs, ’PreLoadFcn’,’RS232_messages.m’)

Note If you do not manually load the message structures before opening

your Simulink model, or have the message structures automatically loaded

with the model, the port connections to the RS-232 driver break.

Your next task is to build and run the target application. However, the example

above only illustrates how to set up the dialog entries when using the Send &

Receive block. Without an external RS-232 device to receive the messages,

and return a reply

"no error\n", this model cannot run successfully on your

target PC. It will block and wait for a reply each time the application sends a

message.

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MATLAB XPC TARGET 4 - DEVICE DRIVERS Spécifications Page 45

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