Lab 1 - EE 421L 

Author: Jazmine Boloor

Email: boloor@unlv.nevada.edu

Due Date: September 2

Lab description: Laboratory introduction, generating/posting html lab reports, installing and using Cadence.

Pre-Lab Work

The lab reports will be drafted using html and placed on CMOSedu.

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) 

 

For the prelab, my CMOSedu account was made and I reviewed the editing webpages material from CMOSedu.com.

The following snips show the index and the URL of my CMOSedu page:


Lab Work

The first part of lab 1 goes through the first 25 steps of the first tutorial on CMOSedu.com.

To launch Cadance and use the CMOSedu directories, I logged into MobaXterm using the “cd” and “virtuoso &” commands shown in yellow in the following snip. 

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Next, I created a library (File > New > Library) and changed the title to Tutorial_1. I attached the AMI 0.60u C5N (3M, 2P, high-res) library using the scroll bar. Once this library was created, I added a cell called “R_div” by clicking File > New > Cell View and inputting the title of the Cell. The other selections in this window (shown to the right) were left the unchanged.

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Creating a new library                                                                                                      Creating a new cell

I added the following DEFINE statement to my cds.lib because a new library was added in the previous step.

The tutorial this lab follows calls for the design of a voltage divider. To draft the components necessary for this, I clicked Create > Instance (bind key I) and found the components necessary. I also labeled the wires using the Create Wire Name function in the toolbar.  The following snips show the final schematic and transient waveform for the voltage divider built.

I used the Save and Check function and no errors were found.

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I set my simulator to Spectre (Setup > Simulator/Directory/Host), and then clicked on “Choose Analysis” shown below with an arrow, and then entered the information highlighted.

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Next, I clicked Outputs > To Be Plotted > Select on Schematic and selected the wires shown my above schematic named “in” and “out”. The simulation was ready to be run by pressing the green “Netlist and Run” button shown with an arrow below.

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The following analysis was formed. I changed the line widths to medium, style to solid, and used more contrasting colors by right clicking on the signal name and editing the properties.

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The output of a voltage divider is expected to be half of its input. The input here shows 1V (directly pulling from the voltage source), and the output shows 0.5V. Therefore, the simulation is exactly what we expected.

 

The second part of lab one was to stress the importance of backing up work and show how to do it.

To illustrate this, I will show how I backed up Lab 1 by saving a copy to my Google Drive.

First, I downloaded a copy of the Tutorial_1 file to my Desktop and zipped the contents.

             

Then, I created a new folder in my Google Drive called “EE421 Lab”. Once this folder is open, the zipped-up Tutorial_1 folder can be dragged and dropped in. I renamed the file Lab1_Aug27backup to stay consistent with the other labs I will put in this folder.

 

That concludes the lab work.

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