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# MathWorks Fixed Point Team

### MathWorks

21 total contributions since 2017

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What does the shared simulation range mean in the Fixed-Point Tool?
The Fixed-Point Tool collects ranges and proposes data types by data type groups rather than individual blocks. A Data type gr...

2 days ago | 0

| accepted

Question

What does the shared simulation range mean in the Fixed-Point Tool?
I am using the Fixed-Point Tool to propose data types and I see that my signal has the specified design range, but it also has a...

2 days ago | 1 answer | 0

### 1

What does this mean and how can I get rid of it ?

1 month ago | 0

Wrong conversion from double to fixed point
Hello, you can try to use any of the Fixed-Point designer workflows to achieve this task. Please find attached a script that u...

1 month ago | 2

Where can I find some introductory material for Fixed Point?
The following resources provide a good overview of the basic concepts for you to get started with fixed-point: These resources...

1 month ago | 2

| accepted

Question

Where can I find some introductory material for Fixed Point?
Are there some useful resources to get started with fixed-point basic concepts?

1 month ago | 1 answer | 0

### 1

Wrap/Saturate on overflow
I think it’s important to understand if these overflows are a concern in the context of the numerical behavior of your control a...

2 months ago | 4

How to use derived ranges for gain and constant blocks using derive range analysis?
In this scenario, your parameter is not considered as tunable and therefore treated as an invariant constant. So the design rang...

2 months ago | 2

| accepted

Question

How to use derived ranges for gain and constant blocks using derive range analysis?
I am trying to use derived range analysis and I am specifying design min, max for the gain block parameter as shown in the model...

2 months ago | 1 answer | 0

### 1

Why do I get this error when I am using fxpopt for fixed-point Optimization: Inconsistent numeric values for port 1 ...
This happens when your model simulation violates your design ranges (min, max specifications). Fxpopt throws this error, as it c...

2 months ago | 2

| accepted

Question

Why do I get this error when I am using fxpopt for fixed-point Optimization: Inconsistent numeric values for port 1 ...
Why do I get this error: Inconsistent numeric values for port 1 of 'mDesignRange/output_signal': Output value (24.7745429376543...

2 months ago | 1 answer | 0

### 1

in this example ''Convert Neural Network Algorithms to Fixed-Point using fxpopt and Generate HDL Code'',how can i get 'xarr' and 'yarr'
The variables xarr and yarr are specified in the model worskpace. Please refer to the following documentation to learn more abou...

8 months ago | 0

| accepted

Submitted

Reducing memory footprint of Lookup tables in your design
Optimize Lookup tables to reduce memory

Submitted

Image classification on an ARM Cortex M Microcontroller
Prototyping and Deploying a neural network for image classification using MNIST data on an ARM Cortex M Microcontroller

Greetings, the difference for these two primarily lies in code generation. For alias types you will be able to see the alias ...

1 year ago | 0

| accepted

Error Fixed-Point-Advisor Create simulation reference data
Hello, @Christoph Meyer, Rüduger Schwendemann would it be possible to attach a simple model that demonstrates the issue? ...

1 year ago | 0

Submitted

Designing a CIC filter for an FPGA – Efficient Fixed-Point I
Data type optimization to find the optimal data types to convert fixed point CIC filter model

Submitted

Deploying shallow Neural Networks on low power ARM Cortex M
Deploying a trained network in limited precision on an ARM microcontroller such as Arduino Uno

Submitted

Designing IIR filter for an FPGA – Fixed Point Implementation
Data type optimization to find the optimal data types to convert floating point IIR filter model

Submitted

Filter Design: Fixed Point Made Easy
Getting to embedded fixed point implementation of your ideal floating point filter designs