该楼层疑似违规已被系统折叠 隐藏此楼查看此楼

%SERIAL Construct serial port object. ( 供你参考 )

%

% S = SERIAL('PORT') constructs a serial port object associated with

% port, PORT. If PORT does not exist or is in use you will not be able

% to connect the serial port object to the device.

%

% In order to communicate with the device, the object must be connected

% to the serial port with the FOPEN function.

%

% When the serial port object is constructed, the object's Status property

% is closed. Once the object is connected to the serial port with the

% FOPEN function, the Status property is configured to open. Only one serial

% port object may be connected to a serial port at a time.

%

% S = SERIAL('PORT','P1',V1,'P2',V2,...) constructs a serial port object

% associated with port, PORT, and with the specified property values. If

% an invalid property name or property value is specified the object will

% not be created.

%

% Note that the property value pairs can be in any format supported by

% the SET function, i.e., param-value string pairs, structures, and

% param-value cell array pairs.

%

% Example:

% % To construct a serial port object:

% s1 = serial('COM1');

% s2 = serial('COM2', 'BaudRate', 1200);

%

% % To connect the serial port object to the serial port:

% fopen(s1)

% fopen(s2)

%

% % To query the device.

% fprintf(s1, '*IDN?');

% idn = fscanf(s1);

%

% % To disconnect the serial port object from the serial port.

% fclose(s1);

% fclose(s2);

%

% See also SERIAL/FOPEN.

%

% MP 7-13-99

% AL 9-4-2009

% Copyright 1999-2009 The MathWorks, Inc.

% $Revision: 1.10.4.13 $ $Date: 2009/10/16 05:01:57 $