xcpPlatformAbstraction = target.create('XCPPlatformAbstraction', ...
                'Name', 'XCP Platform Abstraction');

xcpPlatformAbstraction.BuildDependencies.Defines = {'XCP_CUSTOM_PLATFORM'};
customPlatformAbstractionPath = 'pathToImplementationFolder';
xcpPlatformAbstraction.BuildDependencies.SourceFiles = ...
                {fullfile(customPlatformAbstractionPath, 'myXCPPlatform.c')};
xcpPlatformAbstraction.BuildDependencies.IncludePaths = ...
                {customPlatformAbstractionPath};

xcpTransport = target.create('XCPTCPIPTransport', ...
                'Name', 'XCP Transport');

xcpConfiguration = target.create('XCP', ...
                'Name', 'XCP Configuration', ...
                'XCPTransport', xcpTransport, ...
                'XCPPlatformAbstraction', xcpPlatformAbstraction);

extModeTCPConnectivity = ... 
             target.create('XCPExternalModeConnectivity', ...                
             'Name', 'External Mode TCP Connectivity', ...
             'XCP', xcpConfiguration);

externalMode = target.create('ExternalMode', ...
                'Name', 'External Mode', ...
                'Connectivities', extModeTCPConnectivity);

board.CommunicationProtocolStacks = externalMode;