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Content Feed
How to use Convolution in Simulink?
You can quickly model this BEHAVIOR using the two Tapped Delay blocks one Dot Product block I emphasized BEHAVIO...
4 days ago | 1
Data Type Conversion in simulink
To explore the impact of output data type specification rounding mode specification integer overflow handling specification...
6 days ago | 0
How to delay a signal arbitrarily without using a Delay block in Simulink
Open Simulink Library Browser search on the term: Delay You will see many blocks that provide different delay capabilities. ...
14 days ago | 0
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 ...
28 days ago | 0
| accepted
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...
1 month ago | 0
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....
1 month ago | 1
| accepted
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...
2 months ago | 0
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...
2 months ago | 0
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...
3 months ago | 0
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 ...
3 months ago | 0
| accepted
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...
3 months ago | 0
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...
3 months ago | 0
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...
4 months ago | 1
| accepted
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...
4 months ago | 1
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...
5 months ago | 0
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...
5 months ago | 0
| accepted
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...
5 months ago | 0
| accepted
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 ...
6 months ago | 1
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...
6 months ago | 0
| accepted
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...
7 months ago | 0
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...
7 months ago | 0
| accepted
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...
7 months ago | 0
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...
7 months ago | 0
| accepted
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 ...
7 months ago | 0
(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...
7 months ago | 0
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...
8 months ago | 1
| accepted
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...
8 months ago | 0
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 ...
8 months ago | 0
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...
9 months ago | 0
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