xPC Target

Changing Environment Properties with a Command-Line Interface

xPC Target lets you define and change different properties. These properties include the path to the C/C++ compiler, the host COM port, the logging buffer size, and many others. Collectively these properties are known as the xPC Target environment.

You can use the command-line functions to write an M-file script that accesses the environment settings according to your own needs. For example, you could write an M-file that switches between two targets.

The following procedure shows how to change the COM port property for your host PC from COM1 to COM2:

1. In the MATLAB window, type

• setxpcenv('RS232HostPort','COM2')
  

1. The up-to-date column shows the values that you have changed, but have not updated.
   
   

   HostTargetComm RS232HostPort RS232Baudrate

   :RS232 :COM1 :115200

   up to date COM2 up to date

   Making changes using the function setxpcenv does not change the current values until you enter the update command.

2. In the MATLAB window, type

• updatexpcenv
  

1. The environment properties you changed with the function setxpcenv become the current values.
   
   

   HostTargetComm RS232HostPort RS232Baudrate

   :RS232 :COM2 :115200

   up to date up to date up to date

Changing Environment Properties with a Graphical Interface

System Functions