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See for an example of command placement in the synthesis script.

If your design contains hierarchy, it is recommended to use the Bottom-Up Hierarchical Compile approach (Note : in Synopsys, compile = synthesize = optimize). Compile sub-blocks independently, but do not compile the top level design.

Note the difference in write_script output for PrimeTime and Design Compiler.
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Design for Synthesis
Summary:
This course answers the questions: "How do I complete
a design effectively using a "HDL" and synthesis?" It does
this by focusing on a methodology that uses a single HDL
design that keeps simulation, synthesis, and test all in
mind.

Automatic synthesis script generation for synopsys design compiler ..

The designwas implemented using Active-HDL and Synopsys Design Compiler.
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and click OK. Elaboration brings all the associated lower level blocks into the Design Compiler automatically (by following the dependency of the instantiations within the HDL code).


These courses not only teach the language basics, but also cover design
and test style, performance and portability issues, timing methodology,
and introduction to synthesis, and tell you where you can get additional
information.

How to Execute Script in Synopsys Design Compiler?

We use this idea (coding - simulation - synthesis - simulation) to testall of the examples in this tutorial.
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and the Path entry indicates the total delay from the input external delay to the current point. You can detect any suspicious path with exceptional long delay through this inspection. The most important thing is to check the slack, which is the required delay minus the actual delay , if it reports MET, your design has met the timing constraints, if it reports VIOLATED , you should go back to your HDL code and re-write it to improve timing. Then go back and re-analyze -elaborate the block and compile the whole design again.

In order to verify hardware designs with custom layout components, timing information from the component must be included in the synthesis (DC) and layout-generation (Encounter) process. To do this, a LIB (a.k.a. Liberty) file can be generated and imported into both DC and Encounter. LIB generation uses Encounter Library Characterizer (ELC).

Most of the examples have been simulated by ActiveHDL Simulator and  Design Analyzer, as well as synthesized with Synopsys Design Compiler .
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using Synopsys Design Compiler for the last ..

Use the following brief steps to perform synthesis of your functional Verilog code in the AMS 0.35u Hit-KIT. This process results in gate-level Verilog code based on the AMS digital libraries that can be used for automated place & route and can be imported into the DFII framework (schematic, functional, and/or symbol views) for mixed and analog simulation

In this tutorial you will set up your directory, obtain and prepare the tcl script, launch the RC (RTL Compiler) program, source your script

Synopsys Design Compiler : 네이버 블로그

hdl_designer lets you create your design as any combination of text (VHDL or Verilog) state charts, finite state machines, and RTL schematics. It also has a library of components called ModuleWare that are synthesizable by Design Compiler.

消失的密室: Example of synthesis script (multiple library)

This tutorial introduces the Synopsys Design Analyzer to the UNIX users of the Design Center. After you become more familiar with the commands, you can migrate to dc_shell. VHDL Simulator and VHDL Debugger are also introduced for VHDL users. More information is available through sold -- Synopsys On-line manual. After completing the preparation step you can invoke at your unix prompt by typing,

Example of synthesis script (multiple library) Source: ..


I already checked all the environment variables of the Design Compiler
and the only thing that came close, was the 'verilogout_single_bit'-variable.

Design Compiler Tutorial | Scripting Language | …

and also immediatefeedback on the progress of your synthesis session. Resize it and drag it to the appropriate place in your display. All commands entered via the menus of the Design Analyzer are echoed, so you can learn how to write dc_shell scripts later on.

Synopsys Design Compiler Tutorial


Topics include: what is synthesis, how it effects your design
methodology, converting of structured-behavi*HDL to gates, how to
control and manage the design and tool to get
what you expect, performance issues, style guidelines, libraries and much
more.

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