How do I write a function that alternates an output variable between 0 and 1 every 1 second?

I'm trying to find a solution for my stateflow project in which I want to alternate an output signal as stated in the summary.

Answer 1

[Eric Delgado]

Create a timer with its "UserData" property set to 0. And a timer function (you have to save it to a file) to switch this value between 0 and 1. Hope it helps! :)

% Timer
tmr = timer('Period', 1, ...
            'ExecutionMode', 'fixedRate', ...
            'TimerFcn', @tmrFunction, ...
            'UserData', 0);
start(tmr)


% Timer function
function tmrFunction(Source, Event)

    switch Source.UserData
        case 0; Source.UserData = 1;
        case 1; Source.UserData = 0;
    end

end