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Topic: Stateflow


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  Stateflow - Wikipedia, the free encyclopedia
Stateflow provides the language elements required to describe complex logic in a natural, readable, and understandable form.
Stateflow charts enable the graphical representation of hierarchical and parallel states and the event-driven transitions between them.
Stateflow augments traditional state charts with the capabilities of control flow, MATLAB and graphical functions, truth tables, temporal operators, directed-event broadcasting, and support for integrating hand-written C code.
en.wikipedia.org /wiki/Stateflow   (184 words)

  
 Building Targets (Stateflow)   (Site not responding. Last check: 2007-10-10)
Stateflow automatically builds or rebuilds simulation targets when you initiate simulation of the Stateflow machine.
Configuring and building a target requires a basic understanding of how Stateflow builds targets, in the case of simulation and stand-alone targets, and how Real-Time Workshop builds targets, in the case of RTW targets.
You use Stateflow or Real-Time Workshop to build an entire application that includes both the portions that you supply and the target code generated by Stateflow.
www-rohan.sdsu.edu /doc/matlab/toolbox/stateflow/build3.html   (251 words)

  
 SF2VHD - A Stateflow to VHDL Translator
Stateflow has its own rules and its own syntax, but is included as part of the same MDL file used by Simulink.
Since the Stateflow machines in each design cannot automatically be referenced to existing modules in our cell library, it will have to synthesized by an HDL tool, such as Design Compiler, to be part of an ASIC or FPGA target.
A file will be generated for each Stateflow chart defined in the Simulink design, and placed in the directory specified by the last command line argument.
bwrc.eecs.berkeley.edu /People/kcamera/sf2vhd/default.htm   (996 words)

  
 Stateflow 1.0.6 (Late-Breaking News for the MATLAB 5.2 Product Family)
The Stateflow block is a masked Simulink model and is equivalent to an empty, untitled Stateflow diagram.
The term Stateflow diagram is used from the Stateflow point of view, whereas the term Stateflow block is used from the Simulink point of view.
That is, the Stateflow block continues to use the value as defined at the start of simulation or as changed by Stateflow during the simulation.
home.conceptsfa.nl /~fammaas/RelNotes/ch5.html   (3366 words)

  
 Action Language (Stateflow)
When any of these expressions is used in action language, Stateflow code generation must create temporary Stateflow data, invisible to the user, to hold their intermediate returns for evaluation of the full expression of which they are a part.
MATLAB command or data elements used for the input argument for a graphical function in an expression are resolved for size by the function's prototype.
Stateflow has special cases in which it does no size checking to resolve the size of MATLAB command or data expressions that are members of larger expressions.
www.weizmann.ac.il /matlab/toolbox/stateflow/action31.html   (921 words)

  
 [No title]
Stateflow has many tricky features but our operational treatment yields a surprisingly simple semantics for the subset that is generally recommended for industrial applications.
Stateflow is a component of the Simulink graphical language used in Matlab.It allows hierarchical state-machine diagrams `a la Statecharts to be combined with flowchart diagrams in a very flexible way.
Stateflow is generally used tospecify the discrete controller (i.e., the software) in the model of a hybrid system where the continuous dynamics (i.e., the behavior of the plant and environment)are specified using other capabilities of Simulink.
www.csl.sri.com /cgi-bin/rushby/ps2ascii?~rushby/papers/fase04   (5952 words)

  
 Introduction (Using Stateflow)
In a Stateflow diagram consisting of a single state, that state's parent is the Stateflow diagram itself (also called the Stateflow diagram root).
Stateflow provides two types of states: parallel (AND) and exclusive (OR) states.
The occurrence of an event causes the status of the states in the Stateflow diagram to be evaluated.
www.tau.ac.il /cc/pages/docs/matlab/help/toolbox/stateflow/intro7.html   (1132 words)

  
 Kestrel Technology   (Site not responding. Last check: 2007-10-10)
While the inspiration for Stateflow is based on the intuitively clear behavior of state machines, interacting features and extensions in StateFlow have led to complex semantics.
The MathWorks implementation of Stateflow is considered the final arbiter of these semantics, but users may be unaware that their interpretation differs from the MathWorks implementation.
The Stateflow --> C generator is rooted in a formal description of the operational semantics of Stateflow.
www.kestreltechnology.com /solutions/mathworksTech.php   (327 words)

  
 Starting Stateflow (Stateflow)   (Site not responding. Last check: 2007-10-10)
In this section, you use Stateflow to create, run, and debug a simple power switch model.
Define Input Events -- Define the input events from Simulink that trigger the execution of your Stateflow diagram.
Define the Stateflow Interface -- Add a source of triggers in the Simulink model for executing the Stateflow diagram.
www-rohan.sdsu.edu /doc/matlab/toolbox/stateflow/intro8.html   (200 words)

  
 Stateflow Loop (Report Generator)
The Stateflow Loop component runs its children for the Simulink model, system, or block defined by its parent component.
The Stateflow objects are specified by the Object Report, which must be a child of the Stateflow Loop.
If the Stateflow Loop has the Block Loop as a parent, it includes the current Simulink block if it is a Stateflow chart.
www.phys.ufl.edu /docs/matlab/toolbox/rptgen/stateflowloop.html   (460 words)

  
 Defining Stateflow Interfaces (Stateflow)
Use Stateflow Explorer or the Add -> Data menu selection in the Stateflow diagram editor to add an Output to Simulink event.
You should avoid placing any other blocks in the connection lines between the two blocks for Stateflow blocks that have feedback loops from a block triggered by a function call.
The Stateflow diagram goes back to sleep, waiting to be awakened by another event.
www.weizmann.ac.il /matlab/toolbox/stateflow/interf14.html   (396 words)

  
 Integrated approach to embedded system design: News from The MathWorks   (Site not responding. Last check: 2007-10-10)
The new versions of Simulink, Stateflow, Real-Time Workshop and their extensions provide an interactive, graphical modelling environment that allows users to design, analyse and accurately simulate models of complex, large-scale systems.
Stateflow also includes an extended graphical hierarchy in diagrams and multilevel transition connections.
Real-Time Workshop Embedded Coder and Stateflow Coder meet customer requirements for flexible, readable code that can be inserted into the production process and also fits seamlessly with legacy code.
www.engineeringtalk.com /news/cac/cac105.html   (842 words)

  
 Stateflow Name (Chart) (Report Generator)   (Site not responding. Last check: 2007-10-10)
The Stateflow Name (Chart) component inserts the name of the Stateflow object specified by its parent component into the report.
This component must have the Stateflow Loop, Chart Loop, or Object Report component as its parent.
You can use this component as the first subcomponent of a Chapter/Subsection component, which allows the current Stateflow object name to be the chapter or section title.
www.phys.ufl.edu /docs/matlab/toolbox/rptgen/stateflownamechart.html   (241 words)

  
 Using Stateflow with the design flow
It assumes that you already have basic knowledge of how the use the design flow, and that you have created the Stateflow charts in your design according to the limitations of the SF2VHD translator.
With the current version of the design flow, all your Stateflow charts must be defined in their own library, and linked to in the actual chip design.
The bjcView_StateflowChart parameter must be set to the name of the Stateflow chart itself (not the name of the subsystem mask, in case you needed to name them differently).
bwrc.eecs.berkeley.edu /People/kcamera/sf2vhd/tutorial.htm   (2419 words)

  
 Essentials@NC State::Software Product
Stateflow is an interactive design tool for modeling and simulating event-driven systems.
Stateflow augments traditional statecharts with the innovative capabilities of control flow, MATLAB and graphical functions, truth tables, temporal operators, directed-event broadcasting, and support for integrating hand-written C code.
You can automatically generate C code from Stateflow charts using Stateflow Coder (available separately).
www.ncsu.edu /itd/essentials/software_ncstate/product.php?software=148   (347 words)

  
 Introduction (Using Stateflow)
These steps describe how to create a simple Stateflow diagram using the graphics editor.
Double-click on the Stateflow block in the Simulink model window to invoke the graphics editor window.
For more information on creating Stateflow diagrams using the graphics editor see Chapter 2, "Using the Stateflow Editor."
www.tau.ac.il /cc/pages/docs/matlab/help/toolbox/stateflow/intro10.html   (254 words)

  
 The MathWorks - Stateflow® Coder - Generate C code from Stateflow charts   (Site not responding. Last check: 2007-10-10)
Using Stateflow in Mode Logic and Fault Detection Applications
Stateflow Coder generates portable integer, floating-point, or fixed-point C code for Stateflow charts.
It supports all Stateflow objects and semantics, helping you develop and test algorithms that can be deployed as stand-alone applications or inserted as subroutines into your existing code.
www.mathworks.com /products/sfcoder   (128 words)

  
 Automating the generation of code   (Site not responding. Last check: 2007-10-10)
It is fully compatible with Stateflow and Stateflow Coder.
With the ERT code format, further reductions in code size can be achieved by eliminating initialization and shutdown code that may be unnecessary for a particular application.
Stateflow Coder 4.1 is also required when generating code for Simulink models containing Stateflow charts.
www.embedded.com /shared/printableArticle.jhtml?articleID=23901656   (974 words)

  
 Stateflow Semantics (Stateflow)   (Site not responding. Last check: 2007-10-10)
This example shows the behavior of transitions with junctions that force back-tracking behavior in flow graphs.
The Stateflow diagram root checks to see if there is a valid transition from state
The Stateflow diagram root checks to see if there is another valid transition from state
www.technion.ac.il /guides/matlab/toolbox/stateflow/semant45.html   (139 words)

  
 [No title]   (Site not responding. Last check: 2007-10-10)
Using the Drive-to-State analysis, you can select one, several or all the states of a Stateflow chart and perform the reachability check on them in one verification task.
All types of observables (variables and states) of the selected Stateflow chart or subsystem are displayed for you to specify the property.
The selected M script is started automatically within the Stateflow debugger.
www.osc-es.de /products/en/embeddedvalidator.php   (309 words)

  
 The MathWorks - Stateflow® - Design and simulate state machines and control logic   (Site not responding. Last check: 2007-10-10)
Model-based design with MATLAB and Simulink is fully proven and indispensable to our engineering process, and gives us an advantage over our competition.
Stateflow is an interactive design and simulation tool for event-driven systems.
Automatic Code Generation from Stateflow for Palm OS® Handhelds
www.mathworks.com /products/stateflow   (146 words)

  
 ADI / BEACON Control Flow with Stateflow
BEACON for Simulink / Stateflow enables developers to specify embedded systems requirements using the popular simulation tools: Simulink / Stateflow.
BEACON for Simulink / Stateflow then analyzes the Stateflow diagrams to generate structured C, Ada, or FORTRAN code.
The use of Stateflow diagrams is also compatible with the BEACON Tester automated unit test tool.
www.adi.com /products_be_bss_con.htm   (146 words)

  
 ADI / BEACON for Simulink and Stateflow
BEACON for Simulink / Stateflow combines the proven strength of BEACON's code generator with the modeling power of the MathWorks' Simulink and Stateflow tool set.
Simulink and Stateflow's simulation-oriented models are translated into production-quality designs using BEACON for Simulink's Designer, complete with its data dictionary and user control over processing allocation.
Once Designer is done, the BEACON code generators create efficient, well-commented, and standardized ANSI C or Ada in accordance with the user's annotations of the algorithmic model.
www.adi.com /products_be_bss.htm   (296 words)

  
 Ansgar Fehnker: A brief introduction to Simulink/Stateflow   (Site not responding. Last check: 2007-10-10)
Abstract: Simulink and Stateflow are a are part of the toolset that is offered by MathWorks for the design of model-based control systems.
As a matter of fact Simulink/Stateflow has become the de-facto standard in the industrial process control and embedded systems design.
This brief introduction aims therefore yo provide insight in the basic ideas of Simulink/Stateflow and the (hybrid) nature of the models.
www.cs.cmu.edu /afs/cs.cmu.edu/project/svc/www/talks/ansgar2.html   (82 words)

  
 Handling Array in Stateflow!?   (Site not responding. Last check: 2007-10-10)
Hi, I am using Simulink and Stateflow, and I have an array as an input into the stateflow.
Use for example: ml.any(vector) as a transistion to the state.
> > > Hi, > > I am using Simulink and Stateflow, and I have an array as an input > into the stateflow.
www.codecomments.com /message450085.html   (264 words)

  
 Stateflow Semantics   (Site not responding. Last check: 2007-10-10)
Order of execution when the evaluation of the last transition's guard is false
One interesting aspect of MATLAB Stateflow diagrams is the recursive execution of transitions.
During the execution of a path, all of the transition conditions leaving a junction could be false.
www.ece.cmu.edu /~webk/sf2smv/semantics.html   (576 words)

  
 EETimes.com - DESIGN TOOLS: A direct path to IC design   (Site not responding. Last check: 2007-10-10)
The move gives thousands of Matlab and Simulink users a direct path to FPGA or ASIC implementation.
With the optional Stateflow product, users can generate control logic from finite state machines (FSMs), in addition to generating data path logic from Simulink models.
Ken Karnofsky, marketing director for signal processing and communications at The Mathworks, said customers increasingly are starting designs with Mathworks products and then doing hardware and software implementation.
www.eetimes.com /issue/bb/showArticle.jhtml?articleID=192701706   (1131 words)

  
 Mathtools.net : MATLAB/Real Time and Embedded
Real-Time Workshop® complements Simulink® and Stateflow® by providing automatic C code generation directly from Simulink models.
Using these products, developers can validate their Simulink and Stateflow designs in real time without the need to configure custom target hardware.
Depending on the design of your target, generated applications can be either standalone (requiring no external operating system) or can interface to an existing real-time operating system.
www.mathtools.net /MATLAB/Real_Time_and_Embedded   (3192 words)

  
 The MathWorks - Wikipedia, the free encyclopedia
The MathWorks, Inc. is a privately held, mid-size, multi-national corporation which specializes in technical computing software.
Its main products include MATLAB®, Simulink®, and Stateflow®.
The company was founded by Jack Little (President and CEO), Cleve Moler (Chief Scientist), and Steve Bangert (now inactive) on December 7th 1984.
en.wikipedia.org /wiki/MathWorks   (211 words)

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