CDS LAB1/en

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The objective of the tutorial is to design a digital circuit and simulate it using Cadence

Setting up the work environment

All the actions in this and the followin paragprah will be happening in terminal

  • create a new directory lab1
  • move to the new directory
  • insert 'cad' and from the menu choose '1' (initializes environmental variables for Cadence)
  • insert setenv EDITOR SciTE for making SciTE as the default text editor
Work enviornment setup

Starting Cadence

According to Cadence 2016 EDA ver.
  • If it is the first time launching Cadence, then using terminal:
ams_cds -64 -tech c18a6 -add CORELIB -add IOLIB_6AM -add GATES_ANA
here we choose AMS 0.18μm with 6 metal layers as the technology and add three gate libraries
  • For the subsequent launches of Cadence use the command:
ams_cds
Launching Cadence
The actions from this point on will be executed using the Graphical User Interface of Cadence
Several windows will open. On a dialog window asking about designkit simply press OK.
Designkit dialog


Cadence main window will be also opening, which is located by default near the left bottom corner.
Cadence main window
Cadence will log messages in this window, including error messages.
Also Cadence Library Manager window will open
Library Manager
It is recommended to check the checkbox Show Categories

Creating a new library

In the Library Manager window choose from menu File->New->Library
Loome uue library


A new window will open, where a name can be inserted. In here labor_1 will be used. After inserting the name, press OK
Loome uue library
Another window will appear with couple of choices. Choose Attach to an existing technology library and press OK
uue library tehnoloogia