19.2.2. Basic RTOS configuration options

RTOS operation is controlled by the RTOS settings group in the Advanced_Information block in your current board file. Select File → Connection → Connection Properties... to display the Connection Properties window where you can configure these settings, shown in Figure 19.1.


You do not have to configure these options if your RTOS vendor has supplied an RTOS specific *.bcd file.

Figure 19.1. RTOS group in the Connection Properties window

RTOS group in the Connection Properties window

There are descriptions of the general layout and controls of the RealView Debugger settings windows, which include the Connection Properties window, in the RealView Debugger online help topic Changing Settings.


Do not configure the board file with the debugger connected to a target.

The RTOS group contains the settings:


Selects the type of RTOS that the application is using. This is an enumerated value that selects the RTOS you are using from the installed support libraries.


Selects when the debugger loads the RTOS support library for your RTOS. The RTOS features of the debugger are not enabled until the RTOS support library has found the RTOS on your target, and this might mean that you must run the image startup code. When the DLL is loaded, it can:

  • check immediately for the RTOS, with Load_when set to connect

  • wait until an image is loaded before checking for the RTOS, with Load_when set to image_load.

See the documentation for the RTOS support library for more details.


Defines a base address, overriding the default address used to locate the RTOS data structures. See the documentation for your specific RTOS support code.

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