MathWorks Support Team

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MathWorks

33,173 total contributions since 2009

Answered
How do I debug a MATLAB C/C++ MEX-file in Microsoft Visual Studio 2005?
This Solution is specific to the Microsoft Visual Studio 2005 debugger on Windows, and works on MATLAB 7.3 (R2006b) or later. No...

1 day ago | 0

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Why do I receive the error "No Image Acquisition adaptors found" for USB cameras using R2014a ?
This is because, the winvideo adaptor is not installed by default in MATLAB R2014a. Starting with version R2014a, each adaptor i...

1 day ago | 0

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Answered
R2013a RF toolbox: How do I smooth the parameters of an S-parameter object
You can filter the parameters of the object by deconstructing the complex signals into the magnitude, angle representation. You ...

1 day ago | 0

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Answered
How do I enter and evaluate multiple lines in a GUI edit box that I created in MATLAB?
You can set a multi-line edit box by modifying the "max" uicontrol property of the edit box. If MAX - MIN > 1 the...

1 day ago | 1

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Answered
How do I cast a superclass object into a subclass object in MATLAB 7.7 (R2008b)?
MATLAB 7.7 (R2008b) does not have any functionality for directly casting a superclass object to a subclass object. As a workaro...

1 day ago | 1

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Answered
Why is my model made of Simscape and Simscape Multibody simulating very slowly?
Here are steps to help investigating the performance of Simscape and Simscape Mlutibody simulations. *1. Solver Tolerances* ...

2 days ago | 0

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Answered
Which SDR platform should I use when I want to implement my custom algorithm running on the FPGA of a USRP E310?
The USRP support package is not the right SDR platform. The Communications Toolbox provides only I/O support for USRP radios. In...

2 days ago | 0

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Answered
Changing input sizes error when writing data with dsp.AudioFileWriter
At the current time dsp.AudioFileWriter does not support variable sized inputs and the error is due to the fact that the last fr...

2 days ago | 0

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Question

Changing input sizes error when writing data with dsp.AudioFileWriter
I am using "dsp.AudioFileWriter" to write audio files. When I divide the file into multiple pieces, the last piece wil...

2 days ago | 1 answer | 0

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Question

Which SDR platform should I use when I want to implement my custom algorithm running on the FPGA of a USRP E310?
I would like to implement a Goertzel algorithm on the FPGA part of my USRP E310, Should the USRP support package (https://www.m...

2 days ago | 1 answer | 0

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Answered
Why does a listener object, created with the addlistener function, still exist after the deletion of its source event?
The addlistener function allows code to attach a listener to one or more sources so that the listener will be referenced by the ...

2 days ago | 0

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Question

Why does a listener object, created with the addlistener function, still exist after the deletion of its source event?
According to the documentation on the listener lifecycle <https://www.mathworks.com/help/matlab/matlab_oop/listener-lifecycle.ht...

2 days ago | 1 answer | 0

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Answered
How to download an update for a MATLAB R2017b?
You can use the following link to install an update for 2017b. First, download and run the installer and then download the updat...

2 days ago | 0

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Question

How to download an update for a MATLAB R2017b?
How can I download an update for MATLAB R2017b? Also, how can I check which version of MATLAB I am using?

2 days ago | 1 answer | 0

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Why does MATLAB get stuck in the "Initializing" or "Busy" state or take a long time to start?
To determine whether a slow startup is a licensing issue or not please attempt to start MATLAB using the “-c” startup flag. To l...

3 days ago | 10

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Answered
How do I update a GUI designed in App Designer with data from a running Simulink model?
Let the Simulink model being used be named "Trial.slx" and the App Designer app being used be named "TrialApp.mla...

3 days ago | 2

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Answered
How do I get the Network License Manager to start automatically at boot time on Linux?
See the MATLAB License Manager documentation for information about starting the license manager at boot: <https://www.mathwor...

3 days ago | 0

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Answered
Why is hisf_0015: Check Stateflow charts for strong data typing failing when a function in the expression is defined in custom code?
This is a limitation of hisf_0015 because the 'MIN' macro is defined in a custom source file. The recommended workaround...

3 days ago | 0

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Answered
AUTOSAR Code Generator always writes True to Boolean variable at the time of Initialization
Simulink prevents writing 0 / false at the time of initialization for AUTOSAR because the initialization of the output block dep...

6 days ago | 0

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Question

AUTOSAR Code Generator always writes True to Boolean variable at the time of Initialization
The AUTOSAR code generator seems to be optimising out a boolean enable flag, and assuming it is always true.

6 days ago | 1 answer | 0

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Answered
Why do I get a cyclometric complexity of 2 for a switch block?
As per the formula in the following documentation the cyclometric complexity for the block is computed individually as 1: <http...

6 days ago | 0

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Question

Why do I get a cyclometric complexity of 2 for a switch block?
I am running the "Cyclomatic complexity metric" check for a model which contains a switch block. Why do I get a Cyclom...

6 days ago | 1 answer | 0

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R2017b AUTOSAR not writing provided ports at initiatialization phase
Simulink prevents writing 0 / false at the time of initialization for AUTOSAR because the initialization of the output block dep...

6 days ago | 0

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Question

R2017b AUTOSAR not writing provided ports at initiatialization phase
I am trying to write a constant value of 0/false at the initialization phase in AUTOSAR. It is not written to the output port as...

6 days ago | 1 answer | 0

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Answered
Why do the testpointed labels at the output of a virtual subsystem do not show up in the C-API code in Real-Time Workshop 5.3 (R2009a)?
The behavior you see is expected. The reason being that the signal label in <model>_capi.c is the label of the signal from...

6 days ago | 0

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Answered
如何安装和激活 RoadRunner ？
要安装 RoadRunner，请参照以下步骤：一、安装准备首先，请参考下面的网页确定您的电脑配置满足RoadRunner的系统要求： <https://ww2.mathworks.cn/help/roadrunner/ug/roadrunner-...

6 days ago | 0

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Answered
What is MATLAB Compiler Runtime (MCR) and how do I install it?
The MATLAB Compiler Runtime (MCR) enables you to run applications compiled within MATLAB using MATLAB Compiler. MCR does not req...

7 days ago | 0

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Answered
如何管理FLEXnet的license？如何创建Option文件？
Option文件（也就是mlm.opt）文件是license管理员管理license的文件。具体的说，一个option文件可以实现以下目的： - 设置用户或者组来使用具体的工具箱 - 限制用户使用工具箱 - 将license保留给用户 ...

7 days ago | 0

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Answered
Is there a way to administer FLEXnet based licenses? How do I create an Options file?
An options (generally called mlm.opt) file allows the license administrator to administer licenses for product users. Specifical...

7 days ago | 2

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Answered
Why do I receive "Out of Memory" errors when I run Polyspace (or Polyspace Code Prover since R2013b) verification?
The following options can be set to assist you with this: 1.(Before 17a) "Optimize large static initializers" (intern...

7 days ago | 1

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