Embedded / VLSI Boards

Embedded / VLSI Boards

In embedded systems, a board support package (BSP) is the layer of software containing hardware-specific drivers and other routines that allow a particular operating system (traditionally a real-time operating system, or RTOS) to function in a particular hardware environment (a computer or CPU card), integrated with the RTOS itself.

Very-large-scale integration (VLSI) is the process of creating an integrated circuit (IC) by combining hundreds of thousands of transistors or devices into a single chip. VLSI began in the 1970s when complex semiconductor and communication technologies were being developed. The microprocessor is a VLSI device. Before the introduction of VLSI technology most ICs had a limited set of functions they could perform. An electronic circuit might consist of a CPU, ROM, RAM and other glue logic. VLSI lets IC designers add all of these into one chip.

The objective of the VLSI Design & Embedded Systems Group is to address the research, development and design problems and advance their solutions in VLSI circuits for embedded system and ubiquitous computing applications. The areas are Embedded System design, Power Electronics, Wireless networks, Signal processing, Biomedical Electronics, Electronic Instrumentation, and Audio and Speech Processing.

Development and prototype boards are computer boards that are used to develop or test electronic modules. These are used to evaluate programs for embedded devices such as controllers, point-of-sale (PoS) terminals, kiosks and information appliances. Development boards combine a processor, chipset, memory and onboard peripherals with debugging features. Specifications for development boards include bus type, processor type, form factor, number of ports, port type, memory and operating system.

The research topics covered by the group are  :-
  • System-on-a-chip design – FPGAs & ASICs
  • Reconfigurable computing
  • Algorithms and structures for efficient data and image processing on-board
  • Intelligent systems for on-board data processing and control
  • Connectivity, networking and distributed computing
  • Automotive applications

Load emulation is the concept of controlling a power electronic converter such as a Voltage Source Inverter (VSI) in such a manner that its behavior resembles that of an electrical load such as an induction machine. The load emulator can provide different load characteristics with which the control algorithms and inverter design can be tested. Therefore, load emulation allows the user to test both the hardware and the software of the inverter, thus offering a more flexible platform for testing inverters in a laboratory environment. The load emulator is effectively a dynamically controllable source or sinks which is capable of bidirectional power exchange with either a grid or another power electronic converter system. Using load emulation, the feasibility of connecting a particular load to a grid or VSI under various conditions can be studied in the absence of any electromechanical machinery.

The research mainly focuses on :-
  • Simulation of power electronics circuits, non-linear electrical load models.
  • High power and high frequency switching converters.
  • Modeling and simulation of control systems.
  • Development of a combined off-line and real-time simulator for power electronics simulation.
  • Development of a flexible low cost DSP/FPGA platform for power electronics control implementation.
  • Integration of power electronics with digital control systems, and system prototyping.
  • Designing and prototyping a platform for sampling and transmitting sensor data to a central net server using ad hoc rf networks.
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