How to simulate sine signal with changing frequency in Simulink?

Is possible to do that in Simulink? I am using DSP block, because I want to create discrete sine signal. But I would like that signal is changing its frequency during simulation in some way?

Thanks

[MUHAMMED FASIL]

Use "matlab function" block from simulink library and write matlab code to generate sine wave with frequency varying according to ur need

[Max E.]

i don't what a DSP-block does and if these are comineable, but generally you can use a chirp block to produce a sine-wave with changing frequency. Go to model library->sources->chirp signal

[matico]

Thank you. I will try both methods. Thanks