SUMMARY:

• Expertise in board bring - up and low-level driver design
• Over 30 years in Bare-Metal and RTOS Software/Hardware
• Highly experienced bare-metal embedded software developer
• Experience with C/C++, Python, and Assembly language
• Strong in RTOS-based systems
• Experienced in board bring-up and troubleshooting
• Experienced in device and protocol interfaces
• High electronics knowledge
• Wide range of microprocessor experience
• Board Bring-up
• Hardware Troubleshooting
• Bootloaders
• Reset/Fault handlers
• Assembly Language
• Startup code
• Designed over 20 microcontroller-based boards for industrial applications.
• Experience with Pads and Pulsonix for schematic, layout and routing.
• Communications interfaces: for RS-485, RS-232, USB, Ethernet, BLE
• Very comfortable using Oscilloscopes, Logic Analyzers, Emulators, etc.
• Analog and Digital transducer interfaces
• Power Supply development and thermal considerations.

TECHNICAL SKILLS:

ARM (M0/M3/M4)

Nordic nRF52

PSoC4/PsoC6

Power PC

MIPS (PIC32)

Coldfire

TI CC26xx

8-bit (8051, 6800, Z80, etc.)

UART

SPI

I2C

CAN

MDIO

PWM

ADC/DAC

TCP/UDP development

Embedded IP stacks

RS-485

USB

BLE

Ethernet Phy

WORK HISTORY:

Embedded SW Engineer

Confidential, Bothell, WA

Responsibilities:

• Developed low-level drivers for Nordic project and managed toolchain crossover to IAR.
• Integrated external IMU hardware (Arduino) to legacy design (PIC16) for clinical trials.
• Implemented BLE DTM modes for regulatory compliance.

Avionics SW Engineer

Confidential, Kent, WA

Responsibilities:

• Test software development for product certification
• Developed UDP and UART communications software for robustness testing of crew capsule controllers
• Developed SPIFlash loader for test vector storage on crew capsule controllers.

Senior Embedded SW Engineer

Confidential, Torrance, CA

Responsibilities:

• Embedded BLE SW development for WiFi provisioning.
• Developed TI - CC2640 Bluetooth Low Energy (BLE) device to interface to BLE client (Android/IOS).
• Developed bootloader applications for field upgrades via Linux daemon.
• Also worked sporadically on PIC development/debug activities.

Senior Embedded SW Engineer

Confidential, Portland, OR

Responsibilities:

• Developed all bare-metal microcontroller SW development for cVu 2440/3240 systems
• Completed board bring-up and hardware debug using ICSP emulator and oscilloscopes.
• Developed all microcontroller SW development for two separate bare metal controllers PIC32MZ (MIPS32 core) from board bring-up through application release (all in C and MIPS assembly code).
• Bare metal PIC32MZ (MIPS32 core) development for 2 codebases; one for overall system management and a second for FPGA programming and monitoring.

Embedded SW Engineer

Confidential, Gig Harbor, WA

Responsibilities:

• Development of helicopter autopilot software on an ARM Cortex M3-based triple-CPU system:
• DO-178B Level A software development in C.
• Bare-metal autopilot system with triple-redundant TI Stellaris LM35791 (ARM-M3) CPUs.
• Wrote various drivers and system SW: DMA, I2C, UART, DC motors, etc.
• Implemented architecture improvements, requirements development, code reviews, etc.

HW/SW Design Engineer

Confidential, Concrete, WA

Responsibilities:

• Developed hand - held, battery-driven, Inventory data collection devices.
• Designed and developed all hardware for inventory data collection systems.
• FreeRTOS-based PIC32MX design
• USB slave development Thumb Drive Manager FAT implementation
• Battery Management Fast/Smart keyboard drivers Flash programming
• Graphics LCD management Data acquisition protocol development Bootloader

Principal SW Engineer

Confidential, Fort Collins, CO

Responsibilities:

• Technical SW Lead - Embedded engine controller for military training aircraft
• Technical Software Lead for outsourced Power PC (MPC565) OS design
• Participated in Provided ongoing technical problem solving for junior design engineers
• Developed concurrent software on target platform to perform ongoing software testing
• Developed test hardware for test stimulus injection
• Additionally, developed embedded CAN software for a triple-redundant turbine controller

Principal SW Engineer

Confidential, Redmond, WA

Responsibilities:

• Developed embedded test software applications for hardware validation of Power PC (MPC7448)
• Embedded test solutions for avionics weather radar and terrain collision avoidance hardware.
• Exception Handlers
• Caching
• DRAM Controller
• Board Bring-up
• ECC Validation
• Virtual Memory
• I2C Engine
• DMA Controllers

Electronic Engineer/Consultant

Confidential, Sacramento, CA

Responsibilities:

• Provided outsourced embedded hardware and software services.
• Developed microcontroller - based hardware devices from conception to working prototype.
• Developed embedded software for many different microcontrollers and interfaces
• Performed electronics design and board layout as part of prototype development service
• Performed complete project design services from conception completely through to manufacturing.

Electronics Engineer

Confidential, Davis, CA

Responsibilities:

• Designed Microcontroller hardware and software for the OEM market.
• Participated in the design of Z180 - based stand-alone controllers and expansion I/O boards
• Developed test and library software in C
• Coordinated with production facilities and provided production test support with them
• Developed a digital port-based microprocessor emulator for board troubleshooting.