MATLAB: Stateflow

simulinkstateflow

Hi all, Here I am using "after(0.025, sec)" in statechart for generating pulse, but when it wached on scope,its generating at 0.03, why is the difference. Can any help me how to make exact at 0.025.

Best Answer

Hi Murali,

using a sample time of 0.01s for your model lets you only generate pulses with a multiple of the basic sample time(0.01 / 0.02 / 0.03) If you want to generate a pulse of 0.025 you have to increase your sample time to e.g. 0.001s

Gerd

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MATLAB: What’s the difference in stateflow update method

Stateflow chart runs under simulink environment. Simulink invokes or triggers the blocks (in your case a stateflow chart) at particular sample times. Update method property of chart specifies how simulink invokes or trigger the stateflow chart and calculate its output.

See Stateflow Block Update Method for details description.

See Types of Sample Time to know more about discrete & continuous sample times.

To explore what Descrete & Continuous state means, see Simulink states, a good explanation in this thread, this blog and this blog.

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Use interp1. Read about it.

x=[0 0.038 0.0785 0.168 0.272 0.395 0.539]; 
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interp1(y,x,0.025)

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MATLAB: What’s the difference in stateflow update method

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