It is also possible to build the Light/Switch application with the CCM security feature included. This will
enable CCM authentication and encryption on each packet. In order to use the CCM security feature
the compile option SECURITY_CCM must be set in the project file. This can be done in IAR EW by
selecting Project and Options. Navigate to the C/C++ Compiler and Preprocessor tab and set
SECURITY_CCM as one of the defined symbols (i.e. change xSECURITY_CCM to
SECURITY_CCM). See also Figure 4. The CCM security feature is also described in section 5.2 in this
guide.