Lab 1 - ECE 421L 

Authored by Adam Sheta

Email: shetaa2@unlv.nevada.edu

September 04, 2023 

 

Lab Description

Laboratory introduction, generating/posting html lab reports, installing and using Cadence

 

Pre-lab work

 

Prior to the first day of lab, but no earlier than one week before the lab starts, get a CMOSedu account, using your UNLV email address, from Dr. Baker, rjacobbaker@gmail.com  

 

Review the material seen here covering editing webpages (do this before the first lab)  

 

Showing I am able to login

                                     Figure 1

 

Lab Work

 

This first lab will go through the first part of Tutorial 1

(Go up to the 25th image in the tutorial)

 

1) Simply showing some of the images in this tutorial (that you generated) with some simple coherent narrative,

 

2) Discussing how you will do regular backups while working on the future labs by zipping up your work and emailing it to yourself or 

uploading to dropbox, google drive, etc. with file names including the date (include at least two images to support your discussion).

 

Cadence Setup

 

Logging into Cadence with the account provided by Dr. Greg 

  

Showing I am able to login to Cadence

                                     Figure 2

 
Deleting the
divaDRC.rul, divaEXT.rul, and divaLVS.rul. files from the $HOME/ncsu-cdk-1.6.0.beta/lib/NCSU_TechLib_ami06 directory. 

 

Replacing them with the new divaDRC.rul, divaEXT.rul, and divaLVS.rul. extracted.

 

Diva update

                                      Figure 3 

 

Building the Circuit

 

Creating a new library and configuring it with the correct settings (and the corresponding line created in the cds.lib file)

 

Cadence Library Creationcds lib bottom

                                            Figure 4                                                                                            Figure 5

 

Creating the schematic and adding resistors 

 

Schematic creationAdding a resistorJust Resistors

                     Figure 6                                                            Figure 7                                                            Figure 8

 

Here I will combine the steps of: adding ground and a 1-V DC source to the schematic, adding the wiring, & labeling wires

 

Complete circuit schematic

                                    Figure 9

 

 

Simulating the Circuit

  

Setup for simulation (with spectre already selected) 

 

Simulation Setup

                                               Figure 10 

Results of the simulation

 

Tran output window

                                               Figure 11

TranResponse

                                              Figure 12

 

In order to backup my files and avoid redoing work that I have already done there are two ways I plan to protect my files.

 

Firstly I can backup my files by zipping them and emailing them to myself (as shown below) this is probably the safest thing to do however this is something that I could see myself forgetting to do here and there which is why I have another method I use as well. For this lab I zipped up my files about halfway through working on it and sent it to myself to avoid the risk of loosing my work.

 

Backup email 

                                        Figure 13

 

 

The second thing that I like to do is create a copy of my folder to work in if I am going to try anything that I am unsure about or could possibly be harmful to my work. For this first lab I created a copy of my lab folder to mess around with linking images and websites before I was confident enought to begin working on my lab submission. 

 

Backup files

                                        Figure 14

 

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