MATLAB: How to use sample time internally in Stateflow

MATLABstateflow

Hello,

My fixed solver discrete type model has sample time of 20ms.

I want to use this sample time in Stateflow to start a counter and increment it in 20ms time.

How can I use this sample time in Stateflow?

Thank you.

Note: If sample time changes, the counter should take the updated sample time.

Best Answer

Also I found another solution on the mentioned mathworks link:

https://in.mathworks.com/matlabcentral/answers/54995-how-to-access-fundamental-sample-time-value-within-a-simulink-model

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MATLAB: Varying timer’s period inside the TimerFcn

This page mentions an approach to vary the period of timer: https://stackoverflow.com/questions/15576682/matlab-change-repeating-timer-period

Here I show the method mentioned in the second answer. This example sets a random time period between 1 to 5 seconds after each callback of timer.

t = timer('StartDelay', 1, 'TimerFcn', @timerFcn, ...
    'StopFcn', @timerStopFcn, 'ExecutionMode', 'singleShot');
start(t);
function timerFcn(obj, ~)
    disp(obj.StartDelay)
end
function timerStopFcn(obj, ~)
    period = randi([1 5]);
    obj.StartDelay = period;
    start(obj);
end

MATLAB: How to get sample time of the model through scrip

get_param(gcs, 'FixedStep')

This will only work for fixed step solvers. Note that the result returned is a string.

Best Answer

Related Solutions

MATLAB: Varying timer’s period inside the TimerFcn

MATLAB: How to get sample time of the model through scrip

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