R

Tcl Commands for Advanced Scripting

get (get object properties)

The object get command returns the value of the specified property.

%object get <object_name> <property_name>

object is the name of the Xilinx Tcl command.

name is the name of the object subcommand.

object_name specifies the object to get the property of. The object name will always be a Tcl variable. The set command is used to create a Tcl variable, as shown in the following example.

property_name specifies the name of one of the properties of an object. The properties of an object vary depending on the type of object. Use the object properties command to get a list of valid properties for a specific object.

Example:

% set colVar [search * -type instance]

 

% collection foreach obj $colVar {set objProps

 

[object properties $obj] foreach prop $objProps

 

{puts [object get $obj $prop]}}

 

 

Description:

This example first runs a search to create a collection of all instances

 

in the project. The second statement iterates through the objects in

 

the collection. For each object, the list of available properties on the

 

object are obtained by the object properties command. Then, the value

 

of each property for each of the objects is returned.

Tcl Return:

The value of the specified property.

name (name of the object)

The object name command returns the name of any Xilinx object. This command is useful when manipulating a collection of objects, which may have been returned from a search. The object name command can be used to narrow the collection.

%object name <object_name>

object is the name of the Xilinx Tcl command.

name is the name of the object subcommand.

Development System Reference Guide

www.xilinx.com

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Xilinx 8.2i manual Get get object properties, Name name of the object, Collection foreach obj $colVar set objProps
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8.2i specifications

Xilinx 8.2i is a significant version of the Xilinx ISE (Integrated Software Environment) that emerged in the early 2000s, marking an important milestone in the world of FPGA (Field-Programmable Gate Array) development. This version introduced a slew of advanced features, technologies, and characteristics that made it an indispensable tool for engineers and developers in designing, simulating, and implementing digital circuits.

One of the standout features of Xilinx 8.2i is its enhanced design entry capabilities. This version supports multiple design entry methods, including schematic entry, VHDL, and Verilog HDL, giving engineers the flexibility to choose their preferred approach. The integrated environment provides user-friendly graphical interfaces, making it accessible for both novice and experienced users.

Xilinx 8.2i's synthesis tools have been improved to enable more efficient design compilation and optimization. The new algorithms used in this version facilitate faster synthesis times while reducing power consumption and improving performance. Furthermore, it features support for advanced FPGA architectures, which allows for the implementation of more complex designs with greater efficiency.

The implementation tools in Xilinx 8.2i include advanced place and route capabilities, utilizing state-of-the-art algorithms for optimized resource usage. These tools enable designers to make better use of FPGA resources, ensuring that designs fit within the constraints of the target device while maximizing performance.

Another key characteristic of Xilinx 8.2i is its extensive support for various Xilinx devices such as the Spartan, Virtex, and CoolRunner series. This compatibility ensures that developers can leverage the powerful features of these FPGA families, including high-speed transceivers and DSP slices.

Xilinx 8.2i also places a strong emphasis on simulation and verification. The version integrates with various simulation tools, allowing for thorough testing of the designs before implementation. This reduces the risk of errors and ensures that the final product meets specifications.

In addition, this version includes support for design constraints, enabling engineers to specify timing, area, and other critical design parameters. By accommodating constraints, Xilinx 8.2i helps in achieving reliable and efficient designs tailored to project needs.

In summary, Xilinx 8.2i is a robust software development tool that enhances the design process for FPGAs. Its comprehensive features, including multiple design entry options, advanced synthesis and implementation tools, extensive device support, and strong simulation capabilities, make it a valuable resource for engineers and developers striving for innovation in digital design.
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