RealView Debugger might fail to connect to your chosen debug target because of the following reasons:
you do not have a valid license to use the debug target (RealView Debugger displays a message if this is the case)
the debug target is not installed or the connection is disabled
the target hardware is in use by another user
the connection has been left open by software that exited incorrectly
the target has not been configured, or a configuration file cannot be located
the target hardware is not powered up ready for use
the target is on a scan chain that has been claimed for use by something else
the target hardware is not connected.
If a Debug Configuration is not correctly configured, RealView Debugger displays the Target Connection Error dialog box shown in Figure 3.18.
The message displayed at the top of the selection box indicates the type of problem encountered by RealView Debugger. The message displayed, and the options available, depends on the Debug Interface you are using:
If you have identified the cause of the failure and corrected it, for example you have connected a board or switched on power, then:
Select Retry (you fix the problem first)
Click OK to connect.
To close the list selection box and display the Connection Properties window where you can edit your target configuration details:
Select Edit Board-file to give the specific pathname...
Click OK. The Connection Properties dialog box is displayed.
Click Advanced. The Connection Properties window is displayed.
Correct the configuration settings.
Select Save and Close from the File menu to save your changes and close the Connection Properties window.
Click OK to close the Connection Properties dialog box.
To display the configuration dialog box for the target:
Select Configure Device Information...
Click OK.
You must configure certain targets before you can make your first connection, for example RealView ICE.
To close the message box and abandon the connection, click Cancel.
the following in the RealView Debugger Target Configuration Guide:
PDF version