Started out as a consultant on the StarFire computer controlled firing system lending support for Window CE operating system build/configuration, target debugging setup, and tools. Over time (3 years), took over every aspect of software/firmware and now support all the components with feature enhancements and bug fixes. This system includes a kiosk application in C# and 5 discrete Microchip PIC 18F subsystems (firmware) that fire up to 8128 individual pyrotechnic devices to 10 millisecond… Show more Started out as a consultant on the StarFire computer controlled firing system lending support for Window CE operating system build/configuration, target debugging setup, and tools. Over time (3 years), took over every aspect of software/firmware and now support all the components with feature enhancements and bug fixes. This system includes a kiosk application in C# and 5 discrete Microchip PIC 18F subsystems (firmware) that fire up to 8128 individual pyrotechnic devices to 10 millisecond timing accuracy choreographed to a musical score (see StarFireSales.com).The latest developments on this product included a port from the Windows CE environment on a single board ARM computer (Microsys SBC1651) to a Beaglebone Black Industrial on Linux under a Xamarin Mono C#/.NET emulation environment AND the creation of a wireless interconnect module using a Laird AC4490 900 MHz module. Show less

Designed and implemented the latest generation of particle counter using the Microchip PIC32 (MX470). Communications to the host system was implemented using the microcontroller’s USB peripheral (device) interface and Virtual COM ports. This implementation used the Microchip Harmony firmware framework and included the following devices: SPI clock calendar chip, A2D, D2A, SPI battery backed RAM data storage, 4-20 mA inputs and outputs, RS-232 and RS-485 interfaces, digital input and outputs… Show more Designed and implemented the latest generation of particle counter using the Microchip PIC32 (MX470). Communications to the host system was implemented using the microcontroller’s USB peripheral (device) interface and Virtual COM ports. This implementation used the Microchip Harmony firmware framework and included the following devices: SPI clock calendar chip, A2D, D2A, SPI battery backed RAM data storage, 4-20 mA inputs and outputs, RS-232 and RS-485 interfaces, digital input and outputs, timers, interrupts, and a 480x270 LCD via an FTDI FT-800 display controller. Show less

Contracted to design and implement a USB to SCSI interface converter (hardware design provided by Cubic Systems) to replace PCI interface cards (Adaptec and LSI) that had become obsolete in Windows 7 and later operating systems (for lack of device driver support AND availability of PCI slots in desktop computers). Modified Xitron’s existing UMDF driver software to support the new USB interface. Later, wrote a second KMDF driver package to handle emulation of the SCSI Pass Through mode’s… Show more Contracted to design and implement a USB to SCSI interface converter (hardware design provided by Cubic Systems) to replace PCI interface cards (Adaptec and LSI) that had become obsolete in Windows 7 and later operating systems (for lack of device driver support AND availability of PCI slots in desktop computers). Modified Xitron’s existing UMDF driver software to support the new USB interface. Later, wrote a second KMDF driver package to handle emulation of the SCSI Pass Through mode’s “direct” interface (driver bus mastering is not allowed in UMDF). Provided signing and attestation for both drivers.Completed a contract project for feasibility, basic design, and performance validation tools for a high speed digital image ram spooler for socket output to 10Gbit ethernet. This was used to drive a roll fed inkjet variable data print head at 4 pages/second in color. Design provisions for scalability of up to 4 of these systems for double-wide (15 inch) duplexed (front and back) system. Coded in C++ on Windows 7 64-bit using a 64-bit (x64) architecture with provisions for Win32 client interfaces that utilized shared memory to minimize data copying. Show less

Originally on contract for 6 weeks to build boot loaders for existing EcoStar product line to allow in field update of firmware (field reflashability). Once this was complete, numerous additional assignments were accepted and completed over the next 3 years (3200+ hours). Developed firmware for a microcontroller network of nodes for the Heated Line Project to deliver gaseous samples to Sensor analysis equipment. Handled firmware transition from prototype to deliverable product for the EFM4… Show more Originally on contract for 6 weeks to build boot loaders for existing EcoStar product line to allow in field update of firmware (field reflashability). Once this was complete, numerous additional assignments were accepted and completed over the next 3 years (3200+ hours). Developed firmware for a microcontroller network of nodes for the Heated Line Project to deliver gaseous samples to Sensor analysis equipment. Handled firmware transition from prototype to deliverable product for the EFM4 Exhaust Flow Meter and the CPN Condensation Particle Counter. Developed C# software package on Windows for the Sensor’s flow calibration stand for calibrating the EFM4. Wrote C++ code for the Linux/BeagleBone LDV exhaust analysis stack nodes to effect firmware updates of microcontroller based sub-components in the field (field reflashability). Implemented and delivered firmware reflashability on about 12 different XC164 and XE167 microcontroller components in the EcoStar and LDV exhaust analysis systems. Show less

Worked with a Microchip PIC controller (18F14K50) as a HID based USB device for an industrial PC including Windows applications (C++ and C#) to support its function and configuration. This included application firmware with a boot loader (in C) to allow field upgrade without the use of hardware programmers (software only re-flash). Provided entire scope of project from specification through implementation and deployment.

Closely affiliated with Cubic Systems, Inc. Provided firmware on Fujitsu 16FX for infotainment system on pre-production automobile (McLaren MP4-12C). This included power management, vehicle bus interface, control of digital radio, and ADC/DSP audio control. Provided Windows application support for Cubic FireLynx and NC1 products. Microchip 16F microcontroller programming for automotive steering wheel touch sense application.

Responsible for development of products for ground based vehicle data acquisition and communication for logistics and condition based maintenance. Communication was wired (using Ethernet TCP/IP) and wireless (using WiFi 802.11, Cell (GPRS), and 802.15.4 (Zigbee)). Acquisition of data to non-volatile storage using SD cards for continuous logging for later upload to depot servers on USMC Light Armored Vehicles (LAV-25 A2). Specified and developed communications protocols to upload data to… Show more Responsible for development of products for ground based vehicle data acquisition and communication for logistics and condition based maintenance. Communication was wired (using Ethernet TCP/IP) and wireless (using WiFi 802.11, Cell (GPRS), and 802.15.4 (Zigbee)). Acquisition of data to non-volatile storage using SD cards for continuous logging for later upload to depot servers on USMC Light Armored Vehicles (LAV-25 A2). Specified and developed communications protocols to upload data to depot servers. Developed algorithm to derive vehicle velocity from low frequency acoustic analysis of vehicle vibration for a dynamic stability sensor on the AM General HUMVEE M998 and M1114 including tier I & II up-armor packages.United States Patent Application Number 20080319606, as Inventor with Frederick O. Fortson, Chad Lehner, and Anu GuptaUnited States Patent Application Number 20090164060, as Inventor with Frederick O. Fortson, Chad Lehner, and Anu Gupta Show less

Senior Software Engineer: Responsible for high speed imaging output interfaces to multiple high-resolution platesetters and filmsetters for the electronic prepress industry. Designed and coded all the interface firmware for co-processor PCI cards using AMCC and QuickLogic PCI controllers and Z80 and Motorola Coldfire co-processors. Also responsible for interface firmware for a Cypress USB FX2-LP version of the same interface product line. Maintained and enhanced Windows device drivers for PCI… Show more Senior Software Engineer: Responsible for high speed imaging output interfaces to multiple high-resolution platesetters and filmsetters for the electronic prepress industry. Designed and coded all the interface firmware for co-processor PCI cards using AMCC and QuickLogic PCI controllers and Z80 and Motorola Coldfire co-processors. Also responsible for interface firmware for a Cypress USB FX2-LP version of the same interface product line. Maintained and enhanced Windows device drivers for PCI interfaces. Also responsible for a software releasing and installation programs for Xitron Navigator Rip and its 30+ interfaces for high-resolution output and low-resolution proofer output. Show less

Ported Streams device drivers and OSI protocol stack to System V Release 4, SunOs version 5.3(Solaris) and AIX 4.1(PowerPC). Ported embedded systems operating environment to new 68040 VME based FDDI communications controller. Maintained and enhanced UNIX System V Release 3 character and Streams device drivers.

Designed and implemented software for new products as well as enhancements to existing systems working in Xenix development environment. Provided numerous test fixtures, extensions andenhancements to development environment. Primary work in C under AMD 29000 RISC and Z80 cross compilation tools with heavy usage of assembler. Modifications to development environment included C language, Bourne shell scripts and makefiles.

Designed and implemented Wright EDI-PC, a PC based package for Electronic Data Interchange. Participated in the selection and support of shop floor data collection equipment for interface toexisting manufacturing software packages.

Designed and implemented software for XM-16 Electronic SoftSwitch (TM), a multiprocessorinterface/switching device for use in the newspaper/publishing industry employing 17 Z80 micro processors in a master/slave system. Designed and implemented software for the Hyperset Interface(TM), an IBM PC card allowing interface to phototypesetters. Involved as Project Leader on Xitron Image Processor (TM), a plain paper typesetter proofing device for the Linotron 202.United States Patent… Show more Designed and implemented software for XM-16 Electronic SoftSwitch (TM), a multiprocessorinterface/switching device for use in the newspaper/publishing industry employing 17 Z80 micro processors in a master/slave system. Designed and implemented software for the Hyperset Interface(TM), an IBM PC card allowing interface to phototypesetters. Involved as Project Leader on Xitron Image Processor (TM), a plain paper typesetter proofing device for the Linotron 202.United States Patent Number 4,896,289, as Inventor with Steven Philips (hardware) Show less

Designed and implemented VSPELL (TM), a spelling correction system for the IBM PC andCP/M based microcomputers. Provided assembler language support for other products from CompuView.