Mark Barr Email & Phone Number

Huntsville, AL, US

Arlington, VA, US

• Developed IoT applications for 802.15.4 wireless (2.4GHz, 900MHz) mesh networks (Atmel, TI, ARM)
• Developed boot/control software on remote sensors for monitoring/reporting data across mesh - Low power modes (battery), RF transceiver drivers, firmware updates (serial and over the air) - Supported and ported mesh.
• Implemented gateway (Linux) software to connect remote mesh nodes with cloud servers. - Collected node sensor data and periodically reported aggregate data to cloud. - Supported node firmware updates pushed via cloud..
• Developed build tools for node processors across multiple platforms
• Extensive C embedded development (sensor modules) and Python development (gateway)

• Part of Audio team for embedded software development of Automotive Infotainment Head Units using QNX OS on TI's Jacinto ARM
• Responsible for interfacing to the MOST media bus for optical audio routing.
• Developed drivers for the I2C programmable power amp, timers, and interrupts.
• Infrastructure development for audio routing, control, and diagnostics. Vector CANOE tools.
• Extensive C++ architectural development (STL, maps, vectors, polymorphism...)

• Developed embedded QNX software to control retardant drops for aerial firefighting.
• Implemented control software for drop management and tank volume computation
• Controlled valves, leds, digital display. Read flow meters, float voltages, digital/analog switches.
• Implemented logging of drop statistics, serial configuration, config files. ADC drivers.

• Responsible for embedded project development incorporating QNX RTOS, video tracking, GUI, Digital/Analog I/O, CANBUS, serial and networking communications.
• Developed embedded software for a closed loop fire control system (gimbal-based gun and TV/IR camera control). Implemented state controllers, remote control across Ethernet (UDP packets), QNX Photon GUI touch screen.
• Developed image processing algorithms for real-time video tracking of ground launched NASA rockets. Developed clutter rejection algorithms for statistical centroid tracking.
• Developed QNX-based embedded control system (state machine, I/O, UI) to control air tanker servos for operator selected water drops in aerial firefighting (utilized ADC, digital I/O, serial com).
• Developed flexible system logger process used extensively across multiple projectsNorthstar acquired by ATK (2/2009)

Huntsville, AL, US

• Responsible for FPGA development on Xilinx Virtex-4 for image tracking and graphics overlay of live video with extensive use of Xilinx's soft processor.
• Developed VHDL code for video graphics to overlay live video with “marks” and text.
• Decoded ITU656 video and encoded streaming video with graphics (text, cursors, lines)
• Implemented FFT/IFFT and correlation engine co-processor on Microblaze bus for video tracking
• Interfaced VHDL code directly to SDRAM to store incoming video fields
• Utilized Microblaze processor for hierarchical control (toggling video fields for co-processor, retrieving co-processor results, serial comm)

• Developed video tracker on embedded PPC implementing all low-level booting/initialization and FLASH storage code for embedded PPC (no OS). Interfaced to FPGA to DMA video frame into PPC for video processing by.
• Developed FPGA (Cyclone) UART in VHDL for serial async communications (RS-232).
• Developed FPGA (Stratix, VHDL) code on a PCI card to capture/transmit data and transfer hi-speed data across the PCI bus (300Mbps). Interfaced to PLX's PCI 9556.

Embedded software designs on TI processor (C5000 family) including ADC/DAC, serial communications, interrupt management, booting, flash code update. Implemented embedded graphics, low-level interrupt management and debugging of tracking algorithms for a TI C40 video tracker. Development of embedded host software (pSOS) to control a gimbal-based.

Developed embedded software to control real-time display and movement of gimbal-based surveillance camera. Developed image processing software methods for video tracking (statistical, pattern matching).Left to finish PhD

Birmingham, Alabama, US

Developed video tracking and auto-detection algorithms for VME boards (TI C40 based processors) including inter-processor communications, threat assessment, FPGA interfacing, host communications, interrupt processing.

Embedded systems development including a communications gateway (QNX RTOS, protocol conversion, multiple users, interrupts, drivers, multi-processors). Developed TCP/IP networking application with LPR/LPD protocols. Developed image acquisition and storage application, image compression.

Ph.D., Electrical Engineering (Image Processing, Telecommunications)

Msee, Electrical Engineering (Software, Controls)

Bsee, Electrical Engineering (Hardware, Software)