# Joshua Ford

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**Content Feed**

Question

What does 'coder.internal.indexShapeCheck>>errORWarnIF .... code generation assumption about size violated' mean?

I am attempting to convert a floating point model into fixed point code. I am recieving the error message presented below: ‘ E...

3 months ago | 1 answer | 0

### 1

answerQuestion

dsp.Window future removal - future replacements?

I have seen that the dsp.Window system object will be removed soon. In the future how will you be able to use window functions i...

3 months ago | 0 answers | 0

### 0

answersQuestion

Full Precision option in Fixed-Point Converter MATLAB

In the HDL Coder and Fixed-Point Converter tool in MATLAB there is an option to set the precision as LSB (least-significant bit)...

5 months ago | 1 answer | 0

### 1

answerQuestion

dsp.fft system object unbounded in a for loop

I have matrix if size 256x1024, I would like to do the fft across each row and put it back into the matrix. Previously this has ...

6 months ago | 0 answers | 0

### 0

answersQuestion

Colon operation in fixed-point

I am writing a function in 2020b that I then want to convert into fixed-point using the tool. I am defining some arrays by the c...

6 months ago | 3 answers | 0

### 3

answersQuestion

Can you use SIL/PIL on a combined MATLAB/Simulink model?

I am testing a model which contains both MATLAB and Simulink. Is it possible to use SIL/PIL testing on both the MATLAB and Simul...

11 months ago | 1 answer | 0

### 1

answerQuestion

Is there an estimate/ratio of many lines of C code is produced by MATLAB? Is there an estimate of time too?

I want to generate 10,000 lines of matlab code into c code. The matlab code contains many different signal processing techniques...

1 year ago | 1 answer | 0

### 1

answerQuestion

Can the variable selector block operate on variable-sized data?

I wish operate an fft on each column of a matrix. I am doing this by using a variable selctor block in a for iterator block. My ...

1 year ago | 0 answers | 0

### 0

answersQuestion

How can you change variable-sized data to fixed-sized data?

I am wishing to use multiple blocks and operation that do not support variable-sized data. The source of data is variable-sized ...

1 year ago | 0 answers | 0

### 0

answersQuestion

Can the assignment block assign a variable sized-signal to a fixed-sized signal?

I am wishing to do a bunch of operations on a signal. The source of the signal is variable-sized and so the variable-size propog...

1 year ago | 0 answers | 0

### 0

answersQuestion

Does anyone have any experience or success using the manually written fixed-point fft provided by Mathworks in this example?

I am trying to use an fft in fixed-point within MATLAB. I have found a solution within mathworks - a page that goes through manu...

1 year ago | 1 answer | 0

### 1

answerQuestion

Is there a fixed-point alternative to the fft and ifft fiunction?

I wish to convert a series of functions from floating-point to fixed-point using the fixed-point converter app in MATLAB. Within...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to delete/cancel trailing zeros in complex and imaginary numbers?

Whenever I use or create imaginary and complex numbers, they are always saved with trailing zeros, for example 1.22000000 + 2.15...

1 year ago | 2 answers | 0

### 2

answersQuestion

Why can't complex integer arithmetic be done?

I have been experimenting with a model, comparing fixed and floating-point. At one stage I am taking the product of a complex fl...

1 year ago | 3 answers | 0

### 3

answersQuestion

Why can't an fft function output an int data type?

I am wanting to experiment with model using floating and fixed-point. I understand the fft cannot handle fixed-point data howeve...

1 year ago | 1 answer | 0

### 1

answerQuestion

How do you swap axis independent of the data?

I plotted data via imagesc() however the data and the axis are the opposite way. For example the y-axis shows data for the x-dim...

1 year ago | 0 answers | 0

### 0

answersQuestion

Why does a DocBlock written in Word not show within Simulink Report?

I want to write the contents of a Docblock within Microsoft word which is possible. However when I then include that DocBlock in...

1 year ago | 0 answers | 0

### 0

answersQuestion

How to quickly and simply convert floating-point to fixed-point in matlab script?

I want to compare the performance and speed of running the same script as floating-point and fixed-point. How do I simple conver...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to apply a window function to a chirp/linear chirp in Simulink?

I am trying to apply a window function to a linear chirp. When I look at each signal, there seems to be no difference between th...

1 year ago | 0 answers | 0

### 0

answersQuestion

How can you include hyperlinks in the model and the report?

I would like to insert a hyperlink into the model canvas via annotations or a docblock. I would then like to view and access thi...

1 year ago | 1 answer | 0

### 1

answerQuestion

Can you include hyperlinks in DocBlocks or annotations?

Can you include hyperlinks in DocBlocks or annotations? Is there a way to somehow link the docblocks or annotation to an interna...

1 year ago | 0 answers | 0

### 0

answersQuestion

How can you link annotations and blocks in the report generator, just like you can in the canvas via lines?

Within Simulink, you can link blocks with annotations via "lines" on the canvas. I can produce information on the annotations in...

1 year ago | 1 answer | 0

### 1

answerQuestion

How to use annotation loop in Simulink Report Generator?

How do you use annotation loop in Simulink Report Generator to incorporate model annotation in the system design report. I am en...

1 year ago | 1 answer | 0

### 1

answerQuestion

Best way to document model design - Is it possible to incorporate everything in one model?

I'm looking at the best ways to document the design and description of a model through Simulink tools/apps. It seems like while ...

1 year ago | 1 answer | 0

### 1

answerQuestion

What are the SIL/PIL files/Report that is generated after a SIL test for generated code?

I have succesfully generated SIL code for testing of a model and all looks good (coverage, equivalency etc). In the reports sect...

1 year ago | 0 answers | 0

### 0

answersQuestion

How do I view the actual generated C code from a simulink model?

I am interested in generating C code from a Simulink model and then viewing the actual C code. Within Simulink Coder, the repo...

1 year ago | 1 answer | 0

### 1

answerQuestion

Floating-points for HDL

Hi, Most documentation I have read on mathworks states that the model floating-points should be converted into fixed-points fo...

1 year ago | 1 answer | 0

### 1

answerQuestion

HDL Code Generation Block Support

I understand that Simulink offers specific HDL-support blocks and a HDL environment for models intended for HDL code generatio...

1 year ago | 1 answer | 0

### 1

answerQuestion

Are sim and other similar functions code generateable?

I am attempting to generate code from a MATLAB model that calls Simulink models using functions akin to sim? Is it possible to...

1 year ago | 0 answers | 0

### 0

answersQuestion

How to implement MATLAB/Simulink generated C code onto intel processors?

Hi, My aim is to generate C code from a MATLAB/Simulink Radar model and then implement that C code onto a intel processor. I...

1 year ago | 1 answer | 0