Answered

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...

8 mesi ago | 1

Answered

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...

8 mesi ago | 1

Answered

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 ...

8 mesi ago | 0

Answered

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...

8 mesi ago | 0

| accepted

Answered

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 / (...

9 mesi ago | 0

Answered

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...

9 mesi ago | 0

| accepted

Answered

simulink fixed point advisor example file

The model used in Harhita's Webinar is attached along with a script to define an input object to trigger both of the model's sim...

simulink fixed point advisor example file

The model used in Harhita's Webinar is attached along with a script to define an input object to trigger both of the model's sim...

9 mesi ago | 0

Answered

Counter for Sawtooth signal in Simulink

Look at the edge detection blocks and the discrete integrator in accumulator mode. You can also look under the mask of the edge...

Counter for Sawtooth signal in Simulink

Look at the edge detection blocks and the discrete integrator in accumulator mode. You can also look under the mask of the edge...

9 mesi ago | 0

Answered

How can I make my simulation stop when my graph hits 0? (Simulink)

You can build a solution using the Stop Block. You'll need to build the logic that feeds the Stop Block input using relational...

How can I make my simulation stop when my graph hits 0? (Simulink)

You can build a solution using the Stop Block. You'll need to build the logic that feeds the Stop Block input using relational...

9 mesi ago | 0

Answered

Vector to matrix using assignment - Simulink

As Fangjun noted, MATLAB Function block is a good approach. It can also be done with a combination of reshapes and selector.

Vector to matrix using assignment - Simulink

As Fangjun noted, MATLAB Function block is a good approach. It can also be done with a combination of reshapes and selector.

9 mesi ago | 0

| accepted

Answered

Move a simulink block to a existing subsystem using matlab script

Combination of add_block and delete_block commands should do the trick.

Move a simulink block to a existing subsystem using matlab script

Combination of add_block and delete_block commands should do the trick.

9 mesi ago | 1

Answered

Converting continous time function to fixed point-help

First determine which parts of your model are intended for embedded system deployment. Isolate that portion into a subsystem or...

Converting continous time function to fixed point-help

First determine which parts of your model are intended for embedded system deployment. Isolate that portion into a subsystem or...

9 mesi ago | 1

Answered

Vector to matrix using assignment - Simulink

Does the reshape block meet your needs?

Vector to matrix using assignment - Simulink

Does the reshape block meet your needs?

9 mesi ago | 0

Answered

Non uniform quantization block in simulink?

Flat Lookup Lookup Table Using Flat Interpolation can be used for arbitrary quantization to a set of specified quantization val...

Non uniform quantization block in simulink?

Flat Lookup Lookup Table Using Flat Interpolation can be used for arbitrary quantization to a set of specified quantization val...

9 mesi ago | 0

Answered

argument of type "int64_t" is incompatible with parameter of type "int64m_T" - Static code metrics error report

It is likely the solution is really easy. Just check that the specified production hardware target is correctly configured for...

argument of type "int64_t" is incompatible with parameter of type "int64m_T" - Static code metrics error report

It is likely the solution is really easy. Just check that the specified production hardware target is correctly configured for...

9 mesi ago | 1

| accepted

Answered

Unexpected "Embedded Coder not licensed or not installed" error

Please see the help for the license command.

Unexpected "Embedded Coder not licensed or not installed" error

Please see the help for the license command.

9 mesi ago | 0

Answered

change fixed point number signedness

reinterpretcast is the solution u = fi(129,0,8,0) ntu = numerictype(u) nty = numerictype(ntu,'SignednessBool',true) y = rein...

change fixed point number signedness

reinterpretcast is the solution u = fi(129,0,8,0) ntu = numerictype(u) nty = numerictype(ntu,'SignednessBool',true) y = rein...

9 mesi ago | 0

Answered

extract one of the bits in fi(), flip it, and reassemble it to produce new bin

Please see my answer in your similar question. That answer provides a one-liner that works in most cases. It also provides a m...

extract one of the bits in fi(), flip it, and reassemble it to produce new bin

Please see my answer in your similar question. That answer provides a one-liner that works in most cases. It also provides a m...

9 mesi ago | 0

Answered

flip a bit in a fixed point object

Toggling a bit in the i-th position can be tricky depending on the variety of inputs you need to support scalar vs array signe...

flip a bit in a fixed point object

Toggling a bit in the i-th position can be tricky depending on the variety of inputs you need to support scalar vs array signe...

9 mesi ago | 1

Answered

adding two fixed point numbers

Bin method returns a string The bin method of a fi object a=fi(1,0,3,0); w = a.bin(1:2) class(w) returns a string w = ...

adding two fixed point numbers

Bin method returns a string The bin method of a fi object a=fi(1,0,3,0); w = a.bin(1:2) class(w) returns a string w = ...

10 mesi ago | 0

Answered

Extracting a subset of a binary number to form a new binary number

Bin fine for interpretted mode, but not code gen or Simulink If you only need to perform the operation in MATLAB interpretted m...

Extracting a subset of a binary number to form a new binary number

Bin fine for interpretted mode, but not code gen or Simulink If you only need to perform the operation in MATLAB interpretted m...

10 mesi ago | 1

| accepted

Answered

Extracting first 8 bit from fixed point number

Two Key Ways There are two key ways to extract the bits from a fixed-point number. One way is to use bitsliceget as Walter poi...

Extracting first 8 bit from fixed point number

Two Key Ways There are two key ways to extract the bits from a fixed-point number. One way is to use bitsliceget as Walter poi...

10 mesi ago | 0

Answered

Accumulator Data Type not used in ERT generated code

The C language was designed to closely match what computers do. It is common for a computer's CPU to be based around a particula...

Accumulator Data Type not used in ERT generated code

The C language was designed to closely match what computers do. It is common for a computer's CPU to be based around a particula...

10 mesi ago | 1

| accepted

Answered

Floating-points for HDL

HDL Coder is flexible with regard to types. It supports floating-point, fixed-point, and mixtures of the two. The primary benef...

Floating-points for HDL

HDL Coder is flexible with regard to types. It supports floating-point, fixed-point, and mixtures of the two. The primary benef...

11 mesi ago | 0

Answered

Interpolation between matrices in Simulink

It sounds like you have 3 by 4 by 23 by 6 data points corresponding to 3 rpms, 4 altitudes, 23 CPs, 6 Js and you w...

Interpolation between matrices in Simulink

It sounds like you have 3 by 4 by 23 by 6 data points corresponding to 3 rpms, 4 altitudes, 23 CPs, 6 Js and you w...

12 mesi ago | 0

| accepted

Answered

Simulink's fixed-point tools ignores saturation limits during range collection

Hi, When reporting simulation min and max to the Fixed-Point Tool, several Simulink blocks intentionally give ranges that can b...

Simulink's fixed-point tools ignores saturation limits during range collection

Hi, When reporting simulation min and max to the Fixed-Point Tool, several Simulink blocks intentionally give ranges that can b...

12 mesi ago | 0

| accepted

Answered

colon expression to use integer operands

1) For embedded designs, if at all possible consider changing your design to work with revolutions instead of radians. 1 r...

colon expression to use integer operands

1) For embedded designs, if at all possible consider changing your design to work with revolutions instead of radians. 1 r...

12 mesi ago | 3

| accepted

Answered

How to use ssRegisterDataTypeInteger with Simulink Coder ?

Hi I've created an example for cases where the types can vary per instance of the s-function. The core of the s-function is co...

How to use ssRegisterDataTypeInteger with Simulink Coder ?

Hi I've created an example for cases where the types can vary per instance of the s-function. The core of the s-function is co...

circa un anno ago | 0

| accepted

Answered

How to use ssRegisterDataTypeInteger with Simulink Coder ?

Hi A low effort way to inline an s-function is to use "wrapping". The general concept of "wrapping" an s-function is described...

How to use ssRegisterDataTypeInteger with Simulink Coder ?

Hi A low effort way to inline an s-function is to use "wrapping". The general concept of "wrapping" an s-function is described...

circa un anno ago | 0

Answered

Compiler generated code for TI C2000 device errors with "floating constant is out of range"

Hi, Having a model that simulates with 64-bit floating-point doubles, but behaves as 32-bit floating-point on the target misses...

Compiler generated code for TI C2000 device errors with "floating constant is out of range"

Hi, Having a model that simulates with 64-bit floating-point doubles, but behaves as 32-bit floating-point on the target misses...

circa un anno ago | 0