Adaptive Integrated Microsystems Laboratory

Adaptive Integrated Microsystems Laboratory

"Towards Hybrid, Smart Circuits and Systems"

Our research group focuses on three aspects of hybrid circuits and systems: MORPHING - Investigating neural inspired circuits; SYNTHESIS - Using hybrid computational elements (biological and silicon) to design biomolecular circuits and systems; MONITORING - Embedded and implantable monitoring of natural and engineered systems.

Members Research Publications Patents Courses Download

On-chip Learning: Smart ADC (more...)

Open-source Mixed-signal Test-station Platform

A key component in mixed-signal design is a reliable test-station, which can be used for evaluating and benchmarking the performance of fabricated chips. Cost and time is a critical factor, especially for researchers who are in the process of establishing programs in mixed-signal testing. Also, obtaining measurements in field the test-station has to be portable and has to be scalable to support most existing interfaces. We have designed a low-cost (estimated cost less than $1000) and portable test environment which is easy to use and can interface with popular data analysis and testing software like MATLAB and LabView. The design and software files for the test-station are available for free, with the hope that you will expand the functionality of the station, so that other researchers could benefit from it.


The user manual for the teststation can be downloaded here.	The Gerber files and part-list for the motherboard and the daughter board can be requested by sending an email to shantanu (at) egr (dot) msu (dot)edu	Integrated test-station interfacing with a Spartan 3 starter board. Sample VHDL files for driving the Spartan 3 board can be requested by email toshantanu (at) egr (dot) msu (dot)edu.

The next generation open-source test-station interfaces with an OpalKelly FPGA interface (shown in the Figure). The USB interface provided by OpalKelly is used to drive the DAC chains on the motherboard for real-time signal generation and data acquisition. Software, PCB Gerber files and Part-list of the Teststation version 2.0 will be available on this website !

Support Vector Machine (SVM) Software

Gini-SVM is a multi-class classifier that directly produces conditional probability estimates and hence can be used for data-fusion and for integrating with other probabilistic models like Hidden Markov Models or Gaussian Mixture Models. The code is available for download here (MATLAB version) and (C version will be available soon). The Gini-SVM JMLR paper can be downloaded (here).

Speech Processing Software

Sigma-delta learning scripts for speech processing and super-resolution source separation can be downloaded (here). The sigma-delta learning algorithm is described (here) and the super-resolution source separation is described in the paper accepted in IEEE Transactions of Signal Processing.

FAST: Factor-graph Analysis of Stochastic CircuiTs.

FAST is a Monte-Carlo analysis tools for estimating the reliability of circuits whose components are stochastic elements for example protiens and Biomolecules. The documentaion describing the FAST interface is provided in the following (slides). The TBioCAS paper describing the biomolecular analysis using factor-graphs can be downloaded (here).

MarginLDPC decoders

The C code comparing the performance of three different decoding algorithms used for Low-density Parity Check can be downloaded (here). The paper describing the results of the comparison for a representative LDPC code can be downloaded (here).

Other Useful Tools

Power-point circuit drawing Tool (Download Link)