Crear objetos de punto fijo en MATLAB
fi
y numerictype
para la creación de datos de punto fijoPuede crear datos de punto fijo utilizando el objeto fi
de Fixed-Point Designer™. Dentro del constructor de fi
se pueden especificar propiedades numerictype
y fimath
. Cada objeto fi
tiene un objeto numerictype
asociado. El objeto numerictype
almacena información sobre el objeto fi
, incluida la longitud de palabra, la longitud de fracción y representación de signo. El objeto numerictype
es equivalente al objeto fixdt
en Simulink®.
Funciones
Clases
numerictype | Construct an embedded.numerictype object describing fixed-point
or floating-point data type |
Temas
Crear objetos numéricos de punto fijo
- Create Fixed-Point Data
This example shows the basics of how to use the fixed-point numeric object fi. - View Fixed-Point Data
Control display of fixed-point data properties usingfipref
. - Ways to Construct fi Objects
Buildfi
object constructors in the command line or by using a GUI. - Set fi Object Properties
Tells you how to find more information about the properties associated withfi
objects, and shows you how to set these properties. - Fixed-Point Versus Built-in Integer Types
Differences between fixed-point data types and built-in integer data types in MATLAB®.
Ajustes matemáticos de punto fijo
- fimath Object Construction
Creation offimath
objects. - fimath Object Properties
Properties and property settings associated withfimath
objects. - fimath Properties Usage for Fixed-Point Arithmetic
Fixed-point arithmetic usingfimath
objects to control the results. - fimath for Sharing Arithmetic Rules
Using afimath
object to share modular arithmetic information among multiplefi
objects. - fimath for Rounding and Overflow Modes
Order setting for overflow action and rounding method. - fimath ProductMode and SumMode
Differences among the different settings of theProductMode
andSumMode
properties. - How Functions Use fimath
Functions that ignore or discardfimath
.
Preferencias de punto fijo
- Set fi Object Display Preferences Using fipref
Examples of usingfipref
objects to set display preferences forfi
objects. - Data Type Override Preferences Using fipref
Data type override using thefipref
object. - Underflow and Overflow Logging Using fipref
Examples of usingfipref
objects to set logging preferences forfi
objects.
Información sobre el tipo numérico
- numerictype Object Construction
Construction ofnumerictype
objects. - numerictype Object Properties
Properties and property settings associated withnumerictype
objects. - numerictype of Fixed-Point Objects
Fields and settings for thenumerictype
object. - numerictype Objects Usage to Share Data Type and Scaling Settings of fi objects
Example of using anumerictype
object to share modular data type and scaling information among multiplefi
objects.
Aplicaciones
- Fixed-Point Design Exploration in Parallel
This example shows how to explore and test fixed-point designs by distributing tests across many computers in parallel. - Real-Time Image Acquisition, Image Processing, and Fixed-Point Blob Analysis for Target Practice Analysis
This example shows how to acquire real-time images from a GigE Vision® camera or webcam, process the images using fixed-point blob analysis, and determine world coordinates to score a laser pistol target.
Solución de problemas
Resolve Error: Mismatched fimath
Troubleshoot mismatched fimath
errors.
Resolve Error: Data Type Mismatch
Troubleshoot data type mismatch errors.
Troubleshoot fi*
non-fi
errors.
fi Constructor Does Not Follow globalfimath Rules
Troubleshoot getting the fi
constructor to follow
globalfimath
rules.