MATLAB REAL-TIME WORKSHOP 7 - TARGET LANGUAGE COMPILER Uživatelský manuál stáhnout pdf (Strana 344)

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101

8 Serial Port I/O

8-24

Creating a Serial Port Object

You create a serial port object with the serial function. serial requires the

name of the serial port connected to your device as an input argument.

Additionally, you can configure property values during object creation. For

example, to create a serial port object associated with the serial port COM1

s = serial('COM1');

The serial port object s now exists in the MATLAB workspace. You can display

the class of

s with the whos command.

whos s

Name Size Bytes Class

s 1x1 512 serial object

Grand total is 11 elements using 512 bytes

Once the serial port object is created, the properties listed below are

automatically assigned values. These general purpose properties provide

descriptive information about the serial port object based on the object type and

the serial port.

You can display the values of these properties for

s with the get function.

get(s,{'Name','Port','Type'})

ans =

'Serial-COM1' 'COM1' 'serial'

Table 8-3: Descriptive General Purpose Properties

Property Name Description

Name

Specify a descriptive name for the serial port object

Port

Indicate the platform-specific serial port name

Type

Indicate the object type

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