Risposto

How to pass a string dialog (masked) parameter to TLC file for a Level-2 MATLAB S-function?

See this doc page. https://www.mathworks.com/help/simulink/sfg/writertw.html and in this example edit('adapt_lms.m'); search...

How to pass a string dialog (masked) parameter to TLC file for a Level-2 MATLAB S-function?

See this doc page. https://www.mathworks.com/help/simulink/sfg/writertw.html and in this example edit('adapt_lms.m'); search...

circa un anno fa | 0

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Risposto

Is it possible that the "m. file" code is converted from the double precision to the single precision??

Hi, The tools for converting double precision floating-point to single precision for MATLAB code and Simulink models work best ...

Is it possible that the "m. file" code is converted from the double precision to the single precision??

Hi, The tools for converting double precision floating-point to single precision for MATLAB code and Simulink models work best ...

circa un anno fa | 0

Risposto

(Need Help) Is There Any Single-Precision Optimization Code?

I'm not sure if there is support for single-precision simulation and code generation of the kind of standalone optimization solv...

(Need Help) Is There Any Single-Precision Optimization Code?

I'm not sure if there is support for single-precision simulation and code generation of the kind of standalone optimization solv...

circa un anno fa | 0

Risposto

Simulink model: Invalid data type for root level port

I suspect your inport "REEC" is not explicitly specifying its data type and is inheriting data type single via Simulink underspe...

Simulink model: Invalid data type for root level port

I suspect your inport "REEC" is not explicitly specifying its data type and is inheriting data type single via Simulink underspe...

circa un anno fa | 1

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Risposto

How to get Tabledata and break point values using command line for look up table

First, get an array of block paths by searching on 'BlockType', 'Lookup_n-D'. Second, iterate over each block in that list to e...

How to get Tabledata and break point values using command line for look up table

First, get an array of block paths by searching on 'BlockType', 'Lookup_n-D'. Second, iterate over each block in that list to e...

oltre un anno fa | 0

Risposto

How do I input a tranfer function in simulink with just a numerator?

The Laplace operator s represents a derivative and its inverse (1/s) represents an integrator. In concept, you could model 3*s ...

How do I input a tranfer function in simulink with just a numerator?

The Laplace operator s represents a derivative and its inverse (1/s) represents an integrator. In concept, you could model 3*s ...

oltre un anno fa | 0

Risposto

Make matlab use single as standard for code generation

Embedded Coder is designed to keep the generated code consistent with a Simulink model's simulation behavior. Changing doubles t...

Make matlab use single as standard for code generation

Embedded Coder is designed to keep the generated code consistent with a Simulink model's simulation behavior. Changing doubles t...

oltre un anno fa | 0

Risposto

What is the real value of "single(my_variable)"?

Decimal text rounds to nearest representable value When decimal text is read in and parsed by MATLAB, a C compiler, your own cu...

What is the real value of "single(my_variable)"?

Decimal text rounds to nearest representable value When decimal text is read in and parsed by MATLAB, a C compiler, your own cu...

oltre un anno fa | 1

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Risposto

Simulink block to get the specified value

You need your design to remember the past value of a signal, so your design will need some lasting memory. Lasting memory is als...

Simulink block to get the specified value

You need your design to remember the past value of a signal, so your design will need some lasting memory. Lasting memory is als...

oltre un anno fa | 0

Risposto

How to set an input/output data type based block mask parameters?

One way to achieve this is to use the Mask Initialization code to create a dummy "value holder variable" of the same type specif...

How to set an input/output data type based block mask parameters?

One way to achieve this is to use the Mask Initialization code to create a dummy "value holder variable" of the same type specif...

oltre un anno fa | 1

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Risposto

Simulation for custom multiprocessor hardware

Yes, a strength of Simulink is allowing all manner of different things to be brought together in a system level simulation. Thi...

Simulation for custom multiprocessor hardware

Yes, a strength of Simulink is allowing all manner of different things to be brought together in a system level simulation. Thi...

oltre un anno fa | 0

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Risposto

Use variable with number of bits for entiere and fractional part

Hi Mathieu, As Walter mentioned, Fixed-Point Designer provides fixed-point support for MATLAB, Simulink, Stateflow, Embedded Co...

Use variable with number of bits for entiere and fractional part

Hi Mathieu, As Walter mentioned, Fixed-Point Designer provides fixed-point support for MATLAB, Simulink, Stateflow, Embedded Co...

oltre un anno fa | 3

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Risposto

Why does C code generated from Stateflow logic with 'duration' operator have conversion to real_T (double) in it?

Tunable Pararmeters with Duration appears to be a Limitation for Singles only designs In the model above, tuneParam1, tunePar...

Why does C code generated from Stateflow logic with 'duration' operator have conversion to real_T (double) in it?

Tunable Pararmeters with Duration appears to be a Limitation for Singles only designs In the model above, tuneParam1, tunePar...

oltre un anno fa | 1

Risposto

Mux signals do not affect simulation or code generation. But when Code is generated using Mux Block then Arrays are getting generated. Please explain

The mux block is not changing the values. In that sense, "Mux signals do not affect simulation or code generation." But, as the...

Mux signals do not affect simulation or code generation. But when Code is generated using Mux Block then Arrays are getting generated. Please explain

The mux block is not changing the values. In that sense, "Mux signals do not affect simulation or code generation." But, as the...

oltre un anno fa | 0

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Risposto

Stateflow model file dependencies issue.

Hi 1) You can proceed with the rest of the Fixed-Point Tool conversion workflow. A restore point only impacts how you can aba...

Stateflow model file dependencies issue.

Hi 1) You can proceed with the rest of the Fixed-Point Tool conversion workflow. A restore point only impacts how you can aba...

oltre un anno fa | 0

Risposto

Machine precision in simulink

To determine what is happening, a good approach is to log the key signals involved. Then use MATLAB to investigate the logged v...

Machine precision in simulink

To determine what is happening, a good approach is to log the key signals involved. Then use MATLAB to investigate the logged v...

oltre un anno fa | 0

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Risposto

Why is type conversion int32_t to uint32_t a Sign Change Integer Conversion Overflow Defect in Polyspace?

First, two suggestions Here are two suggestions that can improve the efficiency of your generated code and may make the analysi...

Why is type conversion int32_t to uint32_t a Sign Change Integer Conversion Overflow Defect in Polyspace?

First, two suggestions Here are two suggestions that can improve the efficiency of your generated code and may make the analysi...

oltre un anno fa | 0

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Risposto

Matlab Code for IQ Samples Compression and Decompression based on Block Floating point

I'll describe some concepts that will hopefully help you figure out the code needed for your specific case. I'm assuming the in...

Matlab Code for IQ Samples Compression and Decompression based on Block Floating point

I'll describe some concepts that will hopefully help you figure out the code needed for your specific case. I'm assuming the in...

oltre un anno fa | 1

Risposto

What is the equivalent of Discrete Filter bloc in a matlab code ?

dsp.IIRFilter dsp.FIRFilter filter

What is the equivalent of Discrete Filter bloc in a matlab code ?

dsp.IIRFilter dsp.FIRFilter filter

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Risposto

Why do the data become zero when using the function fi?

It's just like scientific notation is the short answer to "Why FractionLength can be bigger than WordLength?". The long answe...

Why do the data become zero when using the function fi?

It's just like scientific notation is the short answer to "Why FractionLength can be bigger than WordLength?". The long answe...

oltre un anno fa | 0

Risposto

How can you get a mathmatical function from a simulink plot?

Finding a model or function is a very broad field. Depending on the nature of the problem and requirements, many tools and tech...

How can you get a mathmatical function from a simulink plot?

Finding a model or function is a very broad field. Depending on the nature of the problem and requirements, many tools and tech...

oltre un anno fa | 0

Risposto

Simulink Fixed point to Floating Conversion

Notice the "(SI)" shown on the icons of the data type conversion blocks. That means the block is using the less common "Stored ...

Simulink Fixed point to Floating Conversion

Notice the "(SI)" shown on the icons of the data type conversion blocks. That means the block is using the less common "Stored ...

oltre un anno fa | 0

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Risposto

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

The FFT provided by DSP System Toolbox as MATLAB callable system object dsp.FFT or as the FFT block should be consistent with ea...

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

The FFT provided by DSP System Toolbox as MATLAB callable system object dsp.FFT or as the FFT block should be consistent with ea...

oltre un anno fa | 0

Risposto

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

MATLAB's built-in types are generally designed to favor operations producing an output of the same type as the inputs. (Key exc...

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

MATLAB's built-in types are generally designed to favor operations producing an output of the same type as the inputs. (Key exc...

oltre un anno fa | 1

Risposto

Why can't complex integer arithmetic be done?

The integers provided in base MATLAB were design to support image processing use cases. Integer types are also a special case o...

Why can't complex integer arithmetic be done?

The integers provided in base MATLAB were design to support image processing use cases. Integer types are also a special case o...

oltre un anno fa | 1

Risposto

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

The FFT provided by DSP System Toolbox as MATLAB callable system object dsp.FFT or as the FFT block support fixed-point data typ...

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

The FFT provided by DSP System Toolbox as MATLAB callable system object dsp.FFT or as the FFT block support fixed-point data typ...

oltre un anno fa | 1

Risposto

reduce the working precision

I'm guessing you want your simulation code to be smaller and faster. Single precision floating-point provides around 7 decimal ...

reduce the working precision

I'm guessing you want your simulation code to be smaller and faster. Single precision floating-point provides around 7 decimal ...

oltre un anno fa | 0

Risposto

How to fix error in port widths or dimentions on the reshape block input?

The purpose of Simulink's Reshape block and MATLAB's reshape command is only to "reinterpret" the dimensions (aka size) of the s...

How to fix error in port widths or dimentions on the reshape block input?

The purpose of Simulink's Reshape block and MATLAB's reshape command is only to "reinterpret" the dimensions (aka size) of the s...

oltre un anno fa | 0

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Risposto

Counter for Sawtooth signal in Simulink

The icon shows the Z-domain description of the Integrator block in accumulator mode (noting that K = 1) Y(z) = ( z / (...

Counter for Sawtooth signal in Simulink

The icon shows the Z-domain description of the Integrator block in accumulator mode (noting that K = 1) Y(z) = ( z / (...

circa 2 anni fa | 0

Risposto

How can I use fractional data types when the values are beyond the interval [-1, +1) ?

I recommend against trying to force a design to use fractional types. Using general fixed-point scaling instead of limiting only...

How can I use fractional data types when the values are beyond the interval [-1, +1) ?

I recommend against trying to force a design to use fractional types. Using general fixed-point scaling instead of limiting only...

circa 2 anni fa | 0

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