Get Started with Fixed-Point Designer
Fixed-Point Designer™ provides data types and tools for optimizing and implementing fixed-point and floating-point algorithms on embedded hardware. It includes fixed-point and floating-point data types and target-specific numeric settings. With Fixed-Point Designer you can perform target-aware simulation that is bit-true for fixed point. You can then test and debug quantization effects such as overflows and precision loss before implementing the design on hardware.
Fixed-Point Designer provides apps and tools for analyzing double-precision algorithms and converting them to reduced-precision floating point or fixed point. Optimization tools enable you to select data types that meet your numerical accuracy requirements and target hardware constraints. For efficient implementation you can replace computationally expensive design constructs with hardware-optimal patterns such as compressed lookup tables.
Production C and HDL code can be generated directly from your fixed- and floating-point optimized models.
Tutoriels
- Création de données à virgule fixe dans MATLAB
Les fondamentaux de la représentation en virgule fixe. - Opérations en arithmétique à virgule fixe
Opérations en arithmétique à virgule fixe. - Visualisation des données à virgule fixe
Réglages de l’affichage des objetsfi
utilisés dans les exemples de code. - Accélération de la simulation en virgule fixe
Cet exemple montre comment accélérer des algorithmes virgule fixe à l’aide de la fonctionfiaccel
. - Set Data Types Using Min/Max Instrumentation
This example shows how to set fixed-point data types by instrumenting MATLAB® code for min/max logging and using the tools to propose data types. - Générer un code C en virgule fixe
Générer un code C en virgule fixe. - Conversion manuelle d’un algorithme MATLAB virgule flottante en virgule fixe
Conversion manuelle d’un algorithme MATLAB virgule flottante en virgule fixe. - Developing and Testing Fixed-Point Systems
Overview of the development cycle for simulating dynamic systems. - Pass Fixed-Point Data Between Simulink Models and MATLAB
Reading fixed-point data from MATLAB into your Simulink® models, and logging fixed-point information from your models and simulations to the workspace. - Configure Blocks with Fixed-Point Output
Fixed-point model creation by configuring Simulink blocks to output fixed-point signals. - Cast from Doubles to Fixed Point
Example based on thefxpdemo_dbl2fix
model, which highlights many of the key features of the Fixed-Point Designer software. - Convert Floating-Point Model to Fixed Point
Use the Fixed-Point Tool to convert a floating-point model to fixed point. - Sharing Fixed-Point Models
Data type override settings for sharing and editing a model containing fixed-point blocks without the Fixed-Point Designer software.
MATLAB Workflow
Simulink Workflow
About Fixed Point
- Les avantages du hardware à virgule fixe
Le hardware à virgule fixe peut être avantageux en matière de taille et de consommation d’énergie, d’utilisation de mémoire, de vitesse, et de coût.
- Fixed-Point Data Types
Fixed-point data types representation.
- Precision and Range
Discusses the concepts behind arithmetic operations in Fixed-Point Designer.
- Scaling
Discusses the types of scaling used in Fixed-Point Designer; binary point-only and [Slope Bias].
- Arithmetic Operations
Introduces the concepts behind arithmetic operations in Fixed-Point Designer.
- Physical Quantities and Measurement Scales
Overview of measurement scales and representing numbers.
- Selected Bibliography