Using Tcl Scripting www.xilinx.com 4
UG894 (v2014.1) April 2, 2014
Tcl Scripting in Vivado
Introduction
The Tool Command Language, or Tcl, is an interpreted programming language with
variables, procedures, and control structures, to interface to a variety of design tools and to
the design data.
Note:
For more information, see the Vivado Design Suite Tcl Command Reference Guide (UG835)
[Ref 1], or type <command> -help.
Note: For information on launching and using the Vivado® Design suite, see Vivado Design Suite
User Guide: Getting Started (UG910) [Ref 2]
The language is easily extended with new function calls, so that it has been expanded to
support new tools and technology since its inception and adoption in the early 1990s. It has
been adopted as the standard application programming interface, or API, among most EDA
vendors to control and extend their applications.
Xilinx® has adopted Tcl as the native programming language for the Vivado Design Suite,
as it is easily adopted and mastered by designers familiar with this industry standard
language. The Tcl interpreter inside the Vivado Design Suite provides the full power and
flexibility of the Tcl language to control the application, access design objects and their
properties, and create custom reports. Using Tcl, you can adapt your design flow to meet
specific design challenges.
The Tcl language provides built-in commands to read and write files to the local file system.
This enables you to dynamically create directories, start FPGA design projects, add files to
the projects, run synthesis and implementation. You can customize the reports generated
from design projects, on device utilization and quality of results, to share across the
organization.
You can also use the Tcl language to implement new design approaches, or work around
existing problems, inserting and deleting design objects, or modifying properties as
needed. You can write scripts to replay established portions of your design flow to
standardize the process.
Many of the Tcl commands discussed in the following text and script examples are specific
to the Vivado Design Suite. You can find detailed information regarding Vivado specific Tcl
commands in the Vivado Design Suite Tcl Command Reference Guide (UG835) [Ref 1], or in
the help system of the Vivado tools.
The Vivado IDE uses Xilinx Design Constraints (XDC) to specify the design constraints. XDC
is based on a subset of all the Tcl commands available in Vivado and is interpreted exactly
like Tcl. The XDC commands are primarily timing constraints, physical constraints, object
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ncf252017-09-22不错的材料，挺好的
Hyunnnnn2017-10-25用官方文档骗分，用的是xilinx ug894文档，可以自行下载
