文件列表:

SerialDemo\.classpath (625, 2010-08-31)
SerialDemo\.project (386, 2010-06-10)
SerialDemo\.settings\org.eclipse.core.resources.prefs (86, 2010-08-31)
SerialDemo\bin\com\sopu\medical\AlertDialog.class (2118, 2010-08-31)
SerialDemo\bin\com\sopu\medical\MultiUser.class (4279, 2010-08-31)
SerialDemo\bin\com\sopu\medical\PortRequestedDialog.class (2489, 2010-08-31)
SerialDemo\bin\com\sopu\medical\SerialConnection$KeyHandler.class (1387, 2010-08-31)
SerialDemo\bin\com\sopu\medical\SerialConnection.class (6423, 2010-08-31)
SerialDemo\bin\com\sopu\medical\SerialConnectionException.class (478, 2010-08-31)
SerialDemo\bin\com\sopu\medical\SerialDemo$CloseHandler.class (799, 2010-08-31)
SerialDemo\bin\com\sopu\medical\SerialDemo$ConfigurationPanel.class (5684, 2010-08-31)
SerialDemo\bin\com\sopu\medical\SerialDemo.class (10614, 2010-08-31)
SerialDemo\bin\com\sopu\medical\SerialParameters.class (4237, 2010-08-31)
SerialDemo\bin\com\sopu\medical\WirelessMedical$1.class (861, 2010-08-31)
SerialDemo\bin\com\sopu\medical\WirelessMedical$2.class (827, 2010-08-31)
SerialDemo\bin\com\sopu\medical\WirelessMedical$MultiUser.class (3814, 2010-08-31)
SerialDemo\bin\com\sopu\medical\WirelessMedical.class (2066, 2010-08-31)
SerialDemo\bin\com\sopu\wireless\jaxws\DataDown.class (1633, 2010-08-31)
SerialDemo\bin\com\sopu\wireless\jaxws\DataDownResponse.class (982, 2010-08-31)
SerialDemo\bin\com\sopu\wireless\jaxws\SayHello.class (934, 2010-08-31)
SerialDemo\bin\com\sopu\wireless\jaxws\SayHelloResponse.class (982, 2010-08-31)
SerialDemo\bin\com\sopu\wireless\ReadWrite.class (3530, 2010-08-31)
SerialDemo\bin\com\sopu\wireless\sopuwireless$1.class (893, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$10.class (1056, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$11.class (677, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$12.class (2494, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$13.class (1009, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$14.class (2814, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$15.class (685, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$16.class (843, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$17.class (993, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$18.class (2237, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$19.class (1109, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$2.class (840, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$20.class (933, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$21.class (909, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$22.class (1028, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$23.class (3084, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$24.class (906, 2010-09-10)
SerialDemo\bin\com\sopu\wireless\sopuwireless$25.class (536, 2010-09-10)
... ...

Copyright (c) 19*** Sun Microsystems, Inc. All Rights Reserved. SerialDemo is a sample program designed to demonstrate some of the features of the Java(tm) Communication API (comm api). This document describes how to build and run SerialDemo. Building SerialDemo All the .java files for SerialDemo reside in a single directory and none of them have package statements. This makes SerialDemo very easy to build. Follow the directions for installing the comm api on your machine. Make sure that you have included comm.jar in your classpath. Compiling SerialDemo only requires a single command. In the same directory that the .java files reside type: javac *.java This will produce all the .class files needed to run SerialDemo. Starting SerialDemo Run SerialDemo from the command line, in the directory containing the .class files, with the following command: java SerialDemo SerialDemo may also be started with a properties file as an argument java SerialDemo serialdemo.properties This properties file is created when a configuration is saved by the user while running SerialDemo. SerialDemo Description SerialDemo is a simple two way "talk" type program. I consists of two TextAreas, the top one takes typed input and writes that input to a serial port. The bottom TextArea displays data received from a serial port. Under the TextAreas is a configuration panel that allows the user to choose a serial port and the settings for the serial port. At the bottom of SerialDemo are three buttons: "Open Port", "Close Port", and "Send Break". There is one menu consisting of three items: "Load", "Save", and "Exit". Hardware Setup Some of the features of SerialDemo will work without any hardware setup, but to use the two way communications feature a null modem cable is required. The cable can either be looped back between the serial ports on a single machine or used to connect the serial ports on two different machines. Using SerialDemo Once the program is started, choose the port you want to connect to and the settings you want for the port on the Configuration Panel. Then press the "Open Port" button. After the port is opened, keystrokes typed into the top TextArea are sent to the port. Data received from the port is displayed in the bottom TextArea. Port choices can not be changed while a port is open. If a change is attempted a dialog box will appear notifying the user that the port can not be changed and the Configuration Panel port choice will revert to the original setting. Port settings may be changed while the port is open. If a setting is not supported by the platform a dialog box will appear notifying the user that setting is not supported and the setting in the Configuration Panel will revert to the original setting. Settings may also be changed while the port is closed. If an unsupported setting is chosen no notification will occur until the port is opened. At that time the port open will fail, the user will be notified and asked to try different settings. Configurations may be saved to and loaded from files. Configurations may only be loaded while a port is closed. To save a configuration, choose the "Save" item from the menu. A file dialog will appear allowing the file to be saved. A default name for the file is "serialdemo.properties". This name can be changed in the file dialog. To load configurations, choose the "Load" item from the menu. A file dialog will appear. Choose the file that contains the configuration that you want to load. SerialDemo can load configurations that may not work on the platform on which the program is running. If a configuration contains unsupported settings or an incorrect port name the port will not open. Configurations may also be loaded from a file at start up. To use a configuration file at start up, pass the name of the file to the program as an argument. Example: java SerialDemo serialdemo.properties A break signal can be sent to serial port by pressing the "Send Break" button. If a break signal is received the message "--- BREAK RECEIVED ---" is printed in the bottom TextArea. Some platforms do not reliably report break signals to the comm api. If the break signal is not correctly reported then the comm api and SerialDemo will interpret the signal as a byte of value 0. In this case the break received message will not be displayed. Port Contention Resolution SerilDemo implements the comm api port contention resolution feature. This feature allows an application to request a port that is use and have the application that is using the port make a choice on whether to give up the port or not. On some platforms, such as Windows, this resolution can occur between separate Virtual Machines. On other platforms, such as Solaris, resolution can only occur within the same Virtual Machine. If you are running on a platform that supports contention resolution between different Virtual Machines SerialDemo can demonstrate port conflict resolution. To see port conflict resolution do the following steps. 1) Start two instances of SerialDemo and have both instances showing on the screen. 2) Open a port in one of the instances. 3) Attempt to open the same port in the other instance. A dialog box should appear over the first instance telling the user that an other application has requested the port and asking if they will give the port up. If the user presses the "Yes" button, the first instance will close the port and the second instance will open the port. The port open calls in SerialDemo have a 30 second timeout. If the instance controlling the port does not give it up within 30 seconds then the open will fail and the instance requesting the port will be notified that the port is in use. Features To Look For In the Code * Opening, closing, and setting serial ports -- SerialConnection.java * Event driven I/O - SerialConnection.java * Event driven ownership resolution -- SerialConnection.java * Comm port exception handling -- SerialConnection.java * Saving and loading configuration files -- SerialDemo.java

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