Mixed Signal SoC design Marathon using eSim & SKY130

Marathon Date : 23 Sept. - 8 Oct. 2022

The following submissions are adjudged as Outstanding, Excellent, Very good and Good by the FOSSEE and the VSD teams.

• Outstanding
• Excellent
• Very Good
• Good

List of Outstanding Circuits:

#	Participant	Circuit	Institute	GitHub
1	Milad Vafaieenezhad	Window Comparator Along with MOD-16 Counter for Counting Based Data Line Selection Operation	Shahed University	View Repo
2	Krunal Badlani	Crack Sensing Circuit	Indian Institute of Technology Hyderabad	View Repo
3	Karuppusamy V	Flash Type ADC	Bannari Amman Institute of Technology	View Repo
4	Inderjit Singh Dhanjal	32-bit SRAM implementation in eSim using Skywater 130nm CMOS technology	K. J. Somaiya College of Engineering	View Repo
5	Tanay Das	Design of a Class D Audio Amplifier IC Using Sliding Mode Control and Negative Feedback	Sikkim Manipal Institute of Technology	View Repo
6	Jayanth Nedunuri	Implementation of 4 bit Two Step Flash ADC	Jyothishmathi institute of Technology and Science	View Repo
7	Aishwarya Balkrishna Patil	Design and Implementation of Automatic Security Monitoring System	Kolhapur Institute of Technology’s College of Engineering, Kolhapur	View Repo
8	Swagatika Meher	3-bit CMOS based TIQ comparator Flash ADC	Odisha University of Technology and Research, Bhubaneswar, Odisha	View Repo
9	Surya V	3-bit Flash ADC using ROM-based Encoder	National Institute of Technology, Tiruchirapalli	View Repo
10	Sanket M Mantrashetti	Design of 8x8 SRAM based on 6T SRAM cell	R. V. College of Engineering	View Repo
11	Avishek Choudhary	10-bit C2C DAC	Thapar Institute of Engineering and Technology	View Repo
12	Nalinkumar S	Implementation of Quadruple - Window Comparator Along with Prioritized MOD-16 Counter for Data Line Multiplexing Operation	Madras Institute of Technology Campus, Anna University	View Repo
13	Rubankumar D	Astable Multivibrator Along with MOD-16 Counter for Counting Based Data Line Selection Operation	Madras Institute of Technology Campus, Anna University	View Repo
14	Vanshika Tanwar	Implementation of 3 Bit Flash ADC performed in eSim	Dronacharya Group Of Institutions, Greater Noida	View Repo
15	Ravi Prakash Vishwakarma	8 Bit Counter/Ramp Type ADC	Madan Mohan Malaviya University Of Technology	View Repo
16	E Balakrishna	Implementation of 4 Bit Flash ADC mixed signal circuit using 130nm performed in eSim	Dronacharya Group of Institution, Greater Noida	View Repo

Contact eSim-fossee:
For more information about the marathon, write to us at contact-esim[at]fossee[dot]in

[paper] eSim: An Open Source EDA Tool

Rahul Paknikar, Saurabh Bansode, Gloria Nandihal, Madhav P. Desai, Kannan M. Moudgalya, 

and Ashutosh Jha*

eSim: An Open Source EDA Tool for Mixed-Signal and Microcontroller Simulations

4th International Conference on Circuits, Systems and Simulation

(ICCSS), 2021, pp. 212-217,

DOI: 10.1109/ICCSS51193.2021.9464198.

Indian Institute of Technology Bombay, Mumbai, Maharashtra, India
* Vellore Institute of Technology Chennai, Tamil Nadu, India

Abstract: The ability to carry out simulations before making a PCB can save a lot of time, effort and cost. This work explains the creation of an open source mixed-signal simulation software eSim that will be of great help to students, hobbyists, the SME sector and startups. Analog and digital components are respectively modelled using SPICE and a hardware descriptive language in eSim. Inclusion of AVR based microcontroller as a part of the digital circuit is demonstrated through its instructions implemented as a C code library. This methodology could be used to provide support to other microcontroller families, such as PIC, STM and also more sophisticated controllers. These concepts are demonstrated through a few examples.

Fig: Workflow of NGHDL

Acknowledgment: The authors would like to thank Prof. Pramod Murali, Department of Electrical Engineering, IIT Bombay and Mrs. Usha Viswanathan, FOSSEE, IIT Bombay for their guidance. We would also like to express our gratitude towards Powai Labs Technology Private Limited for their gratis contribution to the VHPIDIRECT package and Utility package of NGHDL. The FOSSEE project is funded by the National Mission on Education through ICT, Ministry of Education, Govt. of India.

Circuit Design and Simulation Marathon using eSIM

 

Indian Institute of Technology, Bombay

We are happy to announce the first ever #Circuit #Design and #Simulation #Marathon using #eSim! This event is jointly organized by #FOSSEE and VLSI System Design. The FOSSEE project developed at Indian Institute of Technology, Bombay is powered by MINISTRY OF EDUCATION, GOVERNMENT OF INDIA.

To know more about the Circuit Design and Simulation Marathon, please visit https://hackathon.fossee.in/esim/

Important dates:
>> Registration: 21 May 2021 - 15 June 2021
>> Marathon Launch : 17 June 2021

[Photos] MOS-AK LADEC Mexico April 18, 2021

Arbeitskreis Modellierung von Systemen und Parameterextraktion

Modeling of Systems and Parameter Extraction Working Group

MOS-AK LAEDC Workshop

(virtual/online) April 18, 2021

Together with local Host and LAEDC Organizers as well as all the Extended MOS-AK TPC Committee, we have organized the 3rd subsequent MOS-AK/LAEDC workshop which was the Virtual/Online event. There are a couple of the event photos:

MOS-AK Session 1 (APR.18) begun: 8:00am Mexico time zone (GMT-5)

T_1 FOSSEE eSIM: An open source CAD software for circuit simulation

Kannan Moudgalya

IIT Bombay (IN)

T_2 Memristor modeling

Arturo Sarmiento

INAOE (MX)

T_3 Modeling Issues for CMOS RF ICs

Roberto Murphy, Jose Valdes and Reydezel Torres

INAOE (MX)

T_4 Improving Time-Dependent Gate Breakdown of GaN HEMTs with p-type Gate

E. Sangiorgi, A. Tallarico, N. Posthuma, S. Decoutere, C. Fiegna

Universita di Bologna

MOS-AK Session 2 (APR.18) begun: 1:00pm Mexico time zone (GMT-5)

T_5 Compact Models of SiC and GaN Power Devices

Alan Mantooth, Arman Ur Rashid, Md Maksudul Hossain

University of Arkansas (US)

T_6 New analytical model for AOSTFTs

Antonio Cerdeira

CINVESTAV-IPN, Mexico City (MX)

T_7 On the Parameter Extraction of Thin-Film Transistors in Weak-Conduction

Adelmo Ortiz-Conde

Solid State Electronics Laboratory, Simon Bolivar University, Caracas (VE)

End of MOS-AK Workshop
Group Photo

FOSSEE 3-Day workshop on eSim

eSim (previously known as Oscad / FreeEDA) is a free/libre and open source EDA tool for circuit design, simulation, analysis and PCB design. It is an integrated tool built using free/libre and open source software such as KiCad, Ngspice and GHDL. eSim is released under GPL.

These workshops are being conducted by the expert faculty members of Indian Institute of Technology, Bombay. For registration and more details, visit our webpage. Participation certificate will be awarded to all the people who attend this workshop.

Time	Session
11 Feb 2021 (Installation and Simulation):
10:00 AM - 10:30 AM	Introductory Talk by Prof. Kannan Moudgalya
10:30 AM - 10:45 AM	Explaining the Workshop Procedure
10:45 AM - 11:05 AM	Basics of circuit simulation by Prof. Mahesh Patil, IIT Bombay
11:05 AM - 12:00 Noon	Installation and system check for the installed software
12:00 Noon - 1:00 PM	Spoken Tutorial session: Schematic Creation and Simulation
Lunch Break
2:00 PM - 3:00 PM	Spoken Tutorial session: Simulating an Astable Multivibrator
3:00 PM - 4:00 PM	Practice problem on Circuit Simulation
4:00 PM - 4:15 PM	Overview of eSim - FOSSEE Team
4:15 PM - 4:45 PM	Demo on PSpice to KiCad Converter - Sumanto, FOSSEE Fellow 2020 and FOSSEE Team
4:45 PM - 5:00 PM	eSim on cloud - FOSSEE Team
5:00 PM - 5:30 PM	FOSSEE activities under eSim
Overnight	Complete the practice problems
12 Feb 2021 (PCB design and device modelling in eSim):
9:30 AM - 10:00 AM	Discussion of practice problems (Optional)
10:00 AM - 10:40 AM	Spoken Tutorial session: Mapping Components with Footprints
10:40 AM - 11:20 AM	Spoken Tutorial session: Setting Parameters for PCB designing
11:20 AM - 11:50 Noon	eSim software development: how it will benefit students, faculty and professionals? - FOSSEE Team
11:50 AM - 12:40 PM	Spoken Tutorial session: Laying Tracks on PCB
12:40 PM to 1:00 PM	Spoken Tutorial session: PCB Layout for Astable Multivibrator
Lunch Break
2:00 PM- 3:00 PM	Practice problem: PCB design for a small circuit - 1 hour
3:00 PM - 4:00 PM	Live session on Device modelling - FOSSEE Team
4:00 PM - 4:15 PM	Invited talk: Prof. Sebin, Sreepathy Institute of Technology
4:15 PM - 4:30 PM	Invited talk: Prof. Maheshwari, VIT Chennai
4:30 PM - 5:00 PM	Invited talk: Wladek Grabinski, MOS-AK: FOSSS TCAD/EDA Tools
Overnight	Complete the practice problems
13 Feb 2021 (Subcircuit builder and Introduction to NGHDL)
9:30 AM - 10:00 AM	Discussion of practice problems (Optional)
10:00 AM - 10:50 AM	Spoken Tutorial session: Subcircuit Builder
10:50 AM - 11:40 AM	Spoken Tutorial session: Editing a Subcircuit
11:40 AM - 12:30 PM	Spoken Tutorial session: Uploading a spice Subcircuit file
12:30 PM - 1:00 PM	Mixed-signal simulation talk and demo: FOSSEE team
Lunch Break
2:00 PM - 3:00 PM	Practice problem on Mixed-Signal circuit simulation using NGHDL
3:00 PM - 3:20PM	How NGHDL is extended for microcontrollers: Ashutosh Jha, FOSSEE Intern 2020
3:20 PM - 3:40 PM	Expert Talk: Prof Madhav Desai, IIT Bombay
3:40 PM - 4:00 PM	Q&A
4:00 PM - 4:15 PM	Expert talk: Prof Kimberly Moraes
4:15 PM - 4:30 PM	Benefits of contribution to FOSSEE's eSim efforts
4:30 PM - 5:00 PM	Feedback and valedictory

Kannan Moudgalya 

Pramod Murali 

Mohamed Kasim Khan 

Usha Viswanathan 

Saurabh Bansode 

Smita Wangikar

Circuit Design and Simulation Project using eSim

Invitation to participate in Circuit Design and Simulation Project using eSim

The FOSSEE (Free and Open Source Software for Education) project based at lIT Bombay has initiated a Circuit Design and Simulation Project using esim (an open source EDA tool for circuit design, simulation, analysis and PCB design).

Interested candidates can take any solved electronic circuit from any source and redesign it using eSim and submit it to us. Candidates will be rewarded with certificates and honorarium after a review process. These circuits will also be published on our website under an appropriate open source license. 

For more details, please visit: http://esim.fossee.in/circuit-simulation-project