MATLAB: Generating a square wave

simulinksquare wave

Hi…
I would like to know how to generate a square wave in Simulink with variable frequency, that is, I should be able to change the frequency of that square wave externally. The square wave generator from the Simulink library is not useful for my purpose.
Regards.

Best Answer

  1. Use the block "clock" that output to you the simulation time;
  2. Get the rest of the division of this time by your period https://www.mathworks.com/matlabcentral/answers/7260-how-to-get-the-remainder-of-a-division-in-simulink;
  3. Use the "switch block" to check if is the first part (HIGH level) of the period (output 0 or 1).
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