Develop DO-254 FPGA simulation and board level tests for aviation hardware and IP.- Write requirements based on customer provided documentation, and lead requirement reviews.- Run design rule check tool, perform code peer reviews, and make required code changes.- Write test cases to cover requirements including 100% code coverage.- Perform board level hardware testing and post place and route testing to verify simulation results.- Develop TCL scripts to automate simulation testing.- FPGA simulation testing for IP’s including Distributed Memory, Soft Error Mitigation with picoblaze assembly coverage, Floating Point, I2C, ARINC 429, and UART.- FPGA simulation testing for hardware including multi-channel FET control, A/D, D/A, pattern generation, current/voltage threshold detection, current/voltage gain, AFDX Ethernet switch, ARINC 1553, power and reset sequencing, and overspeed protection.- Developed black box hardware tests in C on Microblaze processor for Control and Display unit. Tests included code to exercise graphics processor, power-up and initialization, and fault logs.- Write hardware descriptions, test procedures, requirements, and other documentation.

Developed hardware and firmware for live fire targets for police and military training.- Wrote firmware using FreeRTOS on the LPC2378 ARM7 processor. - Implemented RTOS motor control tasks for lifter motor control using a PWM to drive an h-bridge for stationary (expose/conceal) targets, and winch motor control using a DAC to drive an external motor controller for moving (winch motor driving a cart) targets.- Implemented various other RTOS tasks including hit detector using timers to discern between real and false hits, burst detection, resistive angular position sensing using ADC, linear position sensing using a proximity sensor, storing calibration values to EEPROM, battery level detection, muzzle flash, and support for several modes and responses to status requests.- Performed system level design and documentation. Created wiring diagrams to connect processor board to ruggedized enclosure, and cable diagrams to connect ruggedized enclosure to other system components. Drafted block diagrams and flowcharts derived from customer requirements.

Developed, wrote, performed, and maintained hardware and software test protocols for ultrasonic medical cutting devices. - Testing included characterization, verification, and validation for FDA submission. - Devices were tested for safety, reliability, and user interface. - Designed and managed development of test fixtures for system, subsystem, life, hipot, and temperature testing. - Reviewed and analyzed schematics and PCB layouts using Altium Designer.- Wrote and maintained LabView software for test systems.

Wrote embedded firmware for Quick Access Recorders in C for uClinux on Altera Nios2 Processor. - Projects included power savings mode for USB and Ethernet, and enabling a web server for user control and configuration.- Debugged firmware issue in ARINC 429 USB cable where firmware stopped working after PC went in and out of hibernation.- Performed layout for interface board using OrCAD Layout. Layout required length and impedance matching for high speed signals.

Developed hardware and firmware for spectrometers and associated equipment.- Designed FPGA interfaces to Sony, Toshiba, and Hamamatsu CCD’s.- Improved HR4000 spectrometer FPGA VHDL design. Improvements included changes to external hardware triggering mode, noise reduction, and user configurable output pulses to trigger external light sources.- Updated existing USB2000 spectrometer VHDL design for new USB2000+ design. Changes included adding several registers for increased user control, and auto-zeroing spectral values to compensate for variations between CCD’s.- Wrote firmware for the Cypress EZ-USB FX2 8051 microcontroller to implement PPI interface between FX2 and Analog Devices Blackfin processor. Also implemented UART interface as a handshaking mechanism for the PPI interface.- Developed VHDL and MSP430 code for stackable interface modules.- Wrote datasheets and other technical documentation.

Developed and tested embedded firmware for products for the visually impaired.- Developed firmware for the LPC2138 ARM7 processor. Firmware includes YUV->RGB color space conversion, and programming various on-board video encoding circuits using I2C, SPI, and parallel interfaces.- Developed Microsoft Visual C++ applications for firmware debugging.- Developed protocol to interface various video cameras to a PC USB port. Implemented protocol on a Cypress 8051 EZ-USB FX2 microcontroller.

Developed hardware, firmware, and software for Cockpit Voice Recorders, Flight Data Recorders, and Ground Support Equipment.- Designed download equipment for voice and data recorders from conceptual design through final release. Hardware interfaces TI 'C50's internal to the recorders with PC through the PC's parallel port. The interface hardware consists of line drivers, FIFO's, an Altera FPGA, power regulators, and discrete components. Designed schematic using OrCAD capture, wrote VHDL for the FPGA, and wrote test GUI in Microsoft Visual C++. - Designed and wrote firmware for Ground Support Equipment for voice and data recorders. Designed circuit, wrote VHDL, and developed firmware in C on the Cypress EZ-USB FX2 8051 microcontroller.- Wrote module descriptions, programmers models, and other documentation.