Jonas

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175 total contributions since 2019

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Answered
Implementing a discrete buffer, i.e. a Memory Block with multiple frames
Here is example code for storing the last 10 samples. Of course, you can adapt to memorize more history samples. Summary: Use a...

3 days ago | 0

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Repeating pattern when sending serial data in Simulink
If you place blocks in a Simulink model, the blocks will be executed with a certain cycle time. This means thus you are sending ...

6 days ago | 0

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Why does Simulink mark a subsystem in purple?
Received feedback from MathWorks Support that it is a bug that the purple highlighting persists and a bug fix has been requested...

7 days ago | 1

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Question

Why does Simulink mark a subsystem in purple?
Simulink has marked a subsystem with a purple border. The border color of the block itself is still black, but there is another ...

10 days ago | 2 answers | 0

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Repeating sequence as an input to a stateflow chart from Simulink, the first value is not read and calculated
Add breakpoints in you Stateflow model, and then step each and every cycle to analyse the value of the input ports and the state...

11 days ago | 0

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how to get current path in a stateflow？
You should look into Stateflow Animations. It will highlight the latest path taken in blue during simulation, and the last path ...

11 days ago | 0

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Answered
How to calculate integral (surface area bellow curve) in Simulink?
Integrator block

12 days ago | 1

Question

Slower simulation than usual
Hi all I am running a simulation in Simulink. Usually the simulation takes about 15 minutes in real-time for 60 seconds of simu...

14 days ago | 0 answers | 0

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When is subsystem reference a better choice than model reference?
Subsystem References is new functionality to Simulink, it is only supported since R2019b. So industry will only slowly evolve to...

14 days ago | 1

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simulation time in hours
I am not particularly certain how your model behaves dynamically, and if it is made in the discrete time space or continuous tim...

14 days ago | 0

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How can I count the number of times an input reaches a certain value?
Take the signal for the frost layer thickness, use a Relational Operator to compare if the signal is larger than a constant of 8...

17 days ago | 0

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How to linearly fit a semilog graph
https://nl.mathworks.com/matlabcentral/answers/163349-linear-fit-of-a-semilog-graph?s_tid=answers_rc1-1_p1_MLT https://nl.mathw...

17 days ago | 0

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How many Workspace's we have in MATLAB ?
There are three locations to store model data: Base workspace Model workspace Data dictionary Find more info here on the com...

19 days ago | 0

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Breakdown the matrix signal into individual signals in Simulink
If you have a vector signal with three elements, you can extract those elements using the Demux block. The Mux block allows crea...

19 days ago | 0

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Simulink: 4 bytes to float
Another way is to construct your output manually with 'Shift Arithmetic' blocks and perform bitshifts: The input to the left ...

20 days ago | 1

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Simulink: 4 bytes to float
Use the Byte Unpack block and feed those 4 bytes into it after you have muxed them. Set Output port data type to {'single'} if y...

20 days ago | 0

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How to determine the moment (time) at which the signal exceeded the set value in simulink?
Put an integrator block with input 1 inside an enabled subsystem. Use a relational operator to see if your exponential function ...

21 days ago | 0

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How to use Enabled subsystems?
Change the Enable Port of the enabled subsystem to be 'Reset' for 'Status when enabling'. Set the 'Output when disabled' of the ...

21 days ago | 0

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Simscape/Powergui diognastic - what does a red frame mean?
When there is an error/issue with blocks at build time, the diagnostic viewer can allow the blocks which cause the error to be h...

21 days ago | 0

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How can I connect custom hardware to MATLAB or Simulink?
It is not that easy. You will need to create a custom target. There is a step by step workflow for Cortex-A based processors and...

25 days ago | 0

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Simulink Programmatic Modeling - Large quantity of blocks
I have never programatically created a Simulink model, so I admire you for doing that, but cannot help with the specific functio...

26 days ago | 0

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how to add rainfall data of one year as input in simulink
From Workspace

30 days ago | 0

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How do I run an "example.m" file in Simulink?
In the MATLAB workspace type and enter: >> example Or, go to the editor and click the green play button 'Run'. Or press the '...

1 month ago | 0

Question

Warning: Value of enumeration member 'NULL' differs from when the enumeration was saved.
Hi all I have several Simulink.Enumeration data objects inside a Data Dictionary linked to a Simulink model. I am now working o...

1 month ago | 0 answers | 0

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Cannot perform an implicit cast between these two classes. - Fixed numbers
Hi all I have a simple Simulink Function, which accepts two uint32 inputs: I use this function for stateflow transitions. Ty...

1 month ago | 0 answers | 0

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To disable or hide content preview for all subsystems by using model explorer
It is not possible using the Model Explorer, but you can do it this way: Go to the highest level of your model Select all (ctr...

1 month ago | 0

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Answered
Wireless communication between 2 Simulink blocks without Goto/From
Global Goto/From blocks Data Store Memory block with Data Store Read and Data Store Write blocks The advantage of the first so...

2 months ago | 0

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How to use the state port of an integrator block in Simulink?
I don't really understand completely how your set-up looks like (can you post a screenshot maybe?) but I feel like instead of us...

2 months ago | 1

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Answered
i don't have the powergui block
Hi If you have properly installed the Simscape with Simscape Electrical toolbox, it should be listed under: Simscape > Electric...

2 months ago | 0

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How to simulate a electric filter in Simulink?
You have grounded the output of the opamp behind the voltage sensor block. The voltage sensor block has zero impedance. You shou...

2 months ago | 0