Resume 5

Six years of strong experience in research, analysis, design, development of instruments using VHDL/VERILOG, ASIC Design, FPGA design, digital design techniques, design using microprocessors and micro controllers. Expertise in design and simulation of electronic circuit boards using orcad, spice, circuit maker and smart work. Expertize on Active HDL simulation package.

• Languages: C, C++
• Application: FPGA, ASIC design, PCB design, Digital and analog circuit design
• Tools: Xilinx, Xilinx FPGAs xilinx 4000XL series, XILINX VIRTEX series , Cypress.
• Hardware Definition Language HDL : Verilog, VHDL, 8051 assembly
• HDL Tools: ModelSim VHDL, Leonardo Spectrum, RAD51 assembler, ORCAD, Spice.
• Compiler: AVC51
• Operating System: Unix, Windows NT/95/98

Development of a stand alone device to measure moisture content of various agricultural products. Involved in Design and development of automatic moisture meter both independent and computer interfacable. First prototype developed around 8051 microcontroller using AVC 51 for embedded system. Involved in sensor design. Design and coded same using C. Handled design and fabrication of analog and digital boards for first prototype. Second prototype being developed as full custom SOC System on chip for the calibration circuit around microcontroller 8051using simulation and synthesis tools of mentor graphics. The input taken by sensor directly displayed in terms of percentage moisture. Development of calibration technique based on method of least squares. Writing source code and test benches in VHDL for interfacing of 64K RAM, ROM, decoder and their interfacing with the A/D converter and PGA. Simulation of calibration process and verification of functionality and timing errors for same. Synthesizing code on Xilinx virtex series using Xilinx FPGA.

Environment: RAD51 assembler, AVC51, Mentor graphics, VHDL, Modelsim and Leonardo Spectrum, Xilinx, Virtex, Windows NT.

Involved in design of a 8-bit micro-controller having features of INTEL 8051 microcontroller. The FPGA consists of 128K RAM and 64k ROM and is instruction compatible to the Intel 8051.Prepared library package for the instruction set of the microcontroller in VHDL. Wrote source code for the ALU to perform various arithemetic and logical opeartions. Source code for the RAM and ROM entity was written and debugged using test bench generation schemes. A complete model of the FPGA was designed using the above logical blocks and the design was implemented on Xilinx VIRTEX FPGA. a memory mapped output port was also added to the design.

Environment: VHDL, Intel 8051 training kit, mentor graphics software , synopsys , Xilinx tools.

Involved in the design of high frequency switching circuit to operate at 2.5 GHZ using spice simulation software.Involed in counter design for the programmable counter for the magnetron switching circuit. Involved in debugging, verification and analysis of critical timing parameters for low power consumption and area size using Mentor graphics Leonardo spectrum synthesis tool . Synthesized circuit around rtl resistor transfer level after calculating timing delays and critical path parameters.

Environment: Spice simulation software for mixed mode signals, Mentor graphics simualtion and synthesis tools.

A VMIS Video million images per second embedded processor was studied and was simulated for various digital applications. Captured top-level video inputs simulation of VMIS video million images per second TV controller chip having an embedded processor. Enabled signal processing for digital applications. Worked in a team for simulation of chip. Carried out chip verification using using tools from mentor graphics. Verified ASIC for rtl resistor transfer logic syntax and semantics. Used Configuration Management Tool for database version control.

Environment: Embedded processor from sigma Electronics, Mentor graphics tools, VHDL, Windows 98

Selected photodiodes according to wavelength of various samples to be measured for different parameters. The selection of photodiodes was done to opearte at radio frequencies. Designed analog and digital board around SPICE simulation software. Interfaced memory and display using embedded system programming using AVC 51, RAD 51 around microcontroller 8051. Further, an FPGA was developed to perform the application of microcontroller 8051 and the entire calibration circuit was interfaced around the Xilinx FPGA. Coded using VERILOG. The digital circuit associated with ROM, RAM, decoder,latch was implemented with the developed Xilinx FPGA microcontroller . As a team member wrote source code for the FPGA microcontroller features and tested the functionality of interfacing circuit and simulated it using modelsim VERILOG.

Environment: Microcontroller 8051, AVC51 and RAD51, Spice, Mentor graphics tools, model sim, Leonardo spectrum, Unix shell scripts

• Designed and developed a 8-bit microprocessor. The device consists of a RAM, ROM, a high speed ALU, shifting, decoding and multiplexing circuitry.
• Made package for the instruction set of 8085 in VHDL.
• Wrote source code for the ALU to perform arithmetic and logical operations using VHDL, source code for the RAM and ROM implementation. Simulation of the functionality of the processor using test benches on Active HDL simulation package in Window NT environment. synthesized the same on XILINX FPGA.

Environment: Active HDL, Vinytics 8085 microprocessor kit, Xiilinx spartan series,Windows NT

Designed electronics related to system around ORCAD IV , checked for the functionality of the design using mixed mode signal simulation around ORCAD IV and development of calibration software around microprocessor 8085. Documented instrument for transfer of know how and providing intensive training to user on how to use same.

Environment: ORCAD IV, Vinytics 8085 kit, assembly programming for 8085.

• Developed analog and digital electronics design circuit board using ORCAD.
• Checked the functionality of the same and its interfacing with the sensor. Documentation of instrument. Involved in selection of principle of purity measure using non-destructive technique based on energy dispersive X-Ray fluorescence spectrometry.

The projects around VHDL were coded and tested before synthesis and also associated with PAL Programming, analog and breadboard testing. Responsible for integration and test of a UART, real time clock, keyboard controller, DMA controller and interrupt controller chip. This helped in gaining good understanding of ASIC design and verification methodologies along with PAL and FPGA programming. Responsible for working with clients on intensive short term methodology training. Responsible for training students in VHDL, synthesis and methodology. Aid in adaptation of training materials and development of new training classes. Paper publications and presentations have been made on "Digital Automatic Moisture Computer" and " Capacitive moisture measurement of grains and oil seeds"in various national journals. Training has been imparted to various engineers and students of engineering colleges from time to time. Significant contribution in organization of various seminars and conferences related to instruments developed, various projects for water quality monitoring and soil analysis have also been designed and developed.

B.S. in Electronics Engineering.