Answered

How can I create an S-Function with dynamically typed inputs that support uint64 in Simulink

S-Functions work with features that utilize code generation in a variety of ways. The way I'm familiar with to get the fullest ...

How can I create an S-Function with dynamically typed inputs that support uint64 in Simulink

S-Functions work with features that utilize code generation in a variety of ways. The way I'm familiar with to get the fullest ...

6 months ago | 0

| accepted

Answered

How can I create an S-Function with dynamically typed inputs that support uint64 in Simulink

Hi Daniel, Providing one extra argument -lfixedpoint when mex'ing your SFunction should solve the linker issue. An examp...

How can I create an S-Function with dynamically typed inputs that support uint64 in Simulink

Hi Daniel, Providing one extra argument -lfixedpoint when mex'ing your SFunction should solve the linker issue. An examp...

6 months ago | 0

Answered

Matlab 2018b Simulink does not recognise the input/output of datatype uint64

Way back in the "dark ages" of the 1990s, 64-bit integer were not main stream integer types like 8-bit, 16-bit, and 32-bit were....

Matlab 2018b Simulink does not recognise the input/output of datatype uint64

Way back in the "dark ages" of the 1990s, 64-bit integer were not main stream integer types like 8-bit, 16-bit, and 32-bit were....

6 months ago | 1

| accepted

Answered

How can I get a sum of elements over a specified sample period in simulink?

For the case you described, a known fixed sample time (1ms in your case) and a know fixed time window (32ms in your case) to ave...

How can I get a sum of elements over a specified sample period in simulink?

For the case you described, a known fixed sample time (1ms in your case) and a know fixed time window (32ms in your case) to ave...

7 months ago | 0

Answered

Error: The class uint64 does not map to a 64-bit C type.

If this error is happening when you are explicitly attempting to generated code with MATLAB Coder, Simulink Coder, or Embedded C...

Error: The class uint64 does not map to a 64-bit C type.

If this error is happening when you are explicitly attempting to generated code with MATLAB Coder, Simulink Coder, or Embedded C...

8 months ago | 0

Answered

check if input data in simulink changes by a certain specific value

Hi Aadithya, Some suggestions. Study and experiment with the full set of capabilities of the Delay block including Initial co...

check if input data in simulink changes by a certain specific value

Hi Aadithya, Some suggestions. Study and experiment with the full set of capabilities of the Delay block including Initial co...

8 months ago | 0

Answered

how to mask specific bits in a signed fixed point number?

Full-precision multiply A full-precision multiplication of the 16 bit inputs can be done like so format compact format long ...

how to mask specific bits in a signed fixed point number?

Full-precision multiply A full-precision multiplication of the 16 bit inputs can be done like so format compact format long ...

8 months ago | 0

| accepted

Answered

Simulink Fixed-Point tool false error

Hi Ali, I suggest you reach out to tech support. For example, use the Request Support button on MATLAB's HOME toolstrip. If yo...

Simulink Fixed-Point tool false error

Hi Ali, I suggest you reach out to tech support. For example, use the Request Support button on MATLAB's HOME toolstrip. If yo...

8 months ago | 1

| accepted

Answered

Error : Constant Operands

I'm puzzled by the error you described "Operands must be constants.". When I attempt to reproduce the issue, I don't observe an...

Error : Constant Operands

I'm puzzled by the error you described "Operands must be constants.". When I attempt to reproduce the issue, I don't observe an...

8 months ago | 0

Answered

Lookup Table Error: Values of 'BreakpointsForDimension1' in 'Model' must be strictly monotonically increasing.

Please check the data type specified for the breakpoints. Quantization of the original value to the specified run-time data typ...

Lookup Table Error: Values of 'BreakpointsForDimension1' in 'Model' must be strictly monotonically increasing.

Please check the data type specified for the breakpoints. Quantization of the original value to the specified run-time data typ...

9 months ago | 1

| accepted

Answered

How to represent this state space form in Simulink model?

Drop 4 integrators (1/s) into your model, do not connect them to anything yet. Draw signal wires leading in and out of each int...

How to represent this state space form in Simulink model?

Drop 4 integrators (1/s) into your model, do not connect them to anything yet. Draw signal wires leading in and out of each int...

10 months ago | 1

Answered

Colon operation in fixed-point

fi colon integer values only As the fi colon documention mentions, all colon operands must have integer values. Strategy to ge...

Colon operation in fixed-point

fi colon integer values only As the fi colon documention mentions, all colon operands must have integer values. Strategy to ge...

10 months ago | 0

Answered

How can I use int64 and uint64 with my Simulink S-function?

Two Key Headers for 64-bit Integers in Simulink S-functions. To use 64 bit integers, your S-function should include these two h...

How can I use int64 and uint64 with my Simulink S-function?

Two Key Headers for 64-bit Integers in Simulink S-functions. To use 64 bit integers, your S-function should include these two h...

10 months ago | 0

| accepted

Answered

Use mask's input into mask intialization

It is not possible to feed a signal into a mask initialization code. Only parameters feed into mask initialization code. Signal...

Use mask's input into mask intialization

It is not possible to feed a signal into a mask initialization code. Only parameters feed into mask initialization code. Signal...

10 months ago | 0

| accepted

Answered

How to use cfit objects in Simulink?

The attached model and MATLAB code show how a fit created with Curve Fitting Toolbox can be called from a MATLAB Function Block ...

How to use cfit objects in Simulink?

The attached model and MATLAB code show how a fit created with Curve Fitting Toolbox can be called from a MATLAB Function Block ...

11 months ago | 1

Answered

Why does Simulink's Weighted Sample Time block sometimes use fixed-point data types for its output?

Weighted Sample Time block is Polymorphic The Weighted Sample Time Math block is numeric type polymorphic. For inputs, it suppo...

Why does Simulink's Weighted Sample Time block sometimes use fixed-point data types for its output?

Weighted Sample Time block is Polymorphic The Weighted Sample Time Math block is numeric type polymorphic. For inputs, it suppo...

12 months ago | 0

| accepted

Answered

Update matrix values inside MATLAB Function block

Something to be aware of is that MATLAB Function Block primarily uses code generation mode and not interpreted mode. Interprete...

Update matrix values inside MATLAB Function block

Something to be aware of is that MATLAB Function Block primarily uses code generation mode and not interpreted mode. Interprete...

12 months ago | 0

Answered

How can I use fixdt-tool to convert a matrx variable which has huge range difference of diffenent elements

Fixed-Point Designer does not support per element scaling for vectors and matrices. A good solution to your need will depend on...

How can I use fixdt-tool to convert a matrx variable which has huge range difference of diffenent elements

Fixed-Point Designer does not support per element scaling for vectors and matrices. A good solution to your need will depend on...

12 months ago | 0

| accepted

Answered

Simulink signal mean without zeros

Two key ideas. Use unit delay block to hold calculated values so far Use conditional logic to control when math does or does n...

Simulink signal mean without zeros

Two key ideas. Use unit delay block to hold calculated values so far Use conditional logic to control when math does or does n...

1 year ago | 0

Answered

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...

1 year ago | 0

| accepted

Answered

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 ...

1 year ago | 0

Answered

(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...

1 year ago | 0

Answered

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...

1 year ago | 1

| accepted

Answered

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...

1 year ago | 0

Answered

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 ...

1 year ago | 0

Answered

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...

1 year ago | 0

Answered

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...

1 year ago | 0

| accepted

Answered

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...

1 year ago | 0

Answered

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...

1 year ago | 1

| accepted