David T. Ashley
674 Prentis Street
Detroit, Michigan, 48201
(313) 832-0118
DTASHLEY@AOL.COM

OBJECTIVE

Challenging position developing (or supporting the development of) software and hardware for high-volume embedded systems; with a preference for safety-critical systems.

HIGHLIGHTS OF QUALIFICATIONS

• 10+ years experience developing the software components of embedded systems for consumer electronics and industrial automation equipment.
• M.S.E.E., B.S.E.E., and substantial additional training in computer science.
• Research, publication, teaching, and training experience.
• 10+ years experience with traditional low-cost microcontroller applications (8+ in the automotive industry), including:
  • Build/BOM/configuration/release management.
  • All design methodologies (SASD, OOD, Booch-Rumbaugh, others).
  • All paradigms of embedded software construction (synchronous loops, RTOSs, hybrids).
  • Languages and techniques common in embedded systems (C, C++, assembly-languages, mixed-language programming techniques).
  • Control of mechanical systems, including sensor fault tolerance, robustness criteria, liveness criteria, mechanical/digital state recovery.
  • Support of communication protocols and peripherals, including interrupt-driven communication and all common software defects and preventive actions.
  • Support of unreliable and noisy input interfaces (ignition switches, low-quality potentiometers, other unreliable sensors).
  • Fault detection and reporting in embedded software, including software strategies and diagnostic interfaces.
  • ROM/RAM/CPU cycle reduction techniques.
  • Software debugging and fault isolation techniques.
  • Product testing techniques and software unit-testing techniques, including common paradigms (glass-box, black-box, Latin square techniques).
  • Emulators and debuggers.
  • All memory technologies (EEPROM/FLASH/ROM/RAM).
  • All watchdog technologies.
  • All common software defect root causes and preventive actions (especially intermittent defects and defects caused by improper treatment of interrupts).
  • Sensor error analysis.
  • Calculation error analysis, and all methods of economical implementation (including one publication in review).
  • Real-time analysis (RMA and extensions, excitation and test strategies, hybrid system and timed automata approaches, and one published contribution to the field).
  • Product manufacturing, including end-of-line calibration, serial-numbering, and testing.
  • 5+ years experience in the analysis and implementation of low-cost numerics for low-end processors, including fixed-point arithmetic, integration, differentiation, filters, rational approximation, multiplication, division, and mixed-language programming.
  • Experience developing tools for the PC platform, including Win32 API/GUI, data acquisition, and serial communication.
  • Knowledge of and experience with the SEI-CMM, including applying process in a SEI-CMM Level 3 organization.

EXPERIENCE

Research and Ph.D. Studies (Wayne State University), 2000-Present

• Research and publications in microcontroller numerics, number theory, real-time analysis, and safety-critical embedded product build processes.
• Completed a research tool platform (Tcl/Tk-based) with extensions for safety-critical embedded system builds and number theory calculations used in microcontroller numerics.
• Consulting for automotive embedded systems manufacturers in the area of economical numerical algorithms for low-cost microcontroller cores.
• Network and server administration for world-wide electronic collaboration, including NAT, IPTABLES, SSH, qmail, CVS, ViewCVS, Apache, and Linux.

Ford Motor Company/Visteon Corporation, 1992-2000
Software Engineer/Product Design Engineer

• Led approximately 10 microcontroller embedded software developments, including both prototypes ("yellowboards") and production products.
• Developed tools to support microcontroller software development, including microcontroller-based tools and PC-based tools.
• Developed real-time software architectures (for minimum ROM/RAM, best real-time performance).
• Maintained legacy code and documentation; and corrected defects.
• Developed and analyzed I/O interface circuits for automotive modules (analyses both for accuracy and real-time impact on software design).
• Performed real-time software analysis of several communication protocols, including SCP and CAN.
• Tested products and software modules.
• Led research endeavors resulting in publication (real-time analysis and rational approximation).
• Analyzed software product defects, including real-time defects, language-related defects, and design defects.
• Taught courses in real-time analysis and interrupt-related software defects.

EDUCATION

• M.S.E.E., 1998, Wayne State University, Detroit, Michigan, G.P.A. 3.8/4.0.
• B.S.E.E., 1991, Wayne State University, Detroit, Michigan, G.P.A. 3.78/4.00, substantial additional coursework in computer science and German.

PROGRAMMING AND SCRIPTING LANGUAGES

• C (10+ years)
• C++ (1 year)
• Java (working knowledge, including applets)
• Tcl/Tk (1 year)
• Assembly-Languages: 80x86, TMS-370C8, 68HC11, 68HC12 (10+ years)

SOFTWARE DEVELOPMENT SUITES/IDEs

• Microsoft Visual Studio 6.0 (including Microsoft Visual C++ 6.0) (2 years).
• IAR IDE for the 68HC12 (1 year).
• Texas Instruments development tools (compilers, assemblers, linkers) for TI microcontrollers.

MICROCONTROLLERS AND CPU CORES

• TMS-370C8
• 68HC11
• 68HC12
• 8085/Z80
• 80x86
• M68300

COMMUNICATION PROTOCOLS

• SCP (including all aspects of collision detection and arbitration, error detection, software support, and software real-time analysis).
• CAN (including all aspects of collision detection and arbitration, error detection, software support, and software real-time analysis).
• UART-based protocols (RS-485, UBP, ACP, ordinary serial communication) including all aspects of collision detection and arbitration, error detection, software support, UART support, PIC support, and software real-time analysis).

SOFTWARE DESIGN AIDS

• Cadre Teamwork
• Micrografx Designer
• ABC Flowcharter

VERSION CONTROL TOOLS

• Intersolv PVCS (5+ years)
• Microsoft Visual Source Safe (2 years)
• CVS (2+ years)

OFFICE TOOLS

• Microsoft Word, Excel, Project, and Access; including Visual Basic automation capabilities.
• Microsoft Front Page.

SOURCE CODE INSPECTION/QUALITY ASSURANCE TOOLS

• QAC
• PC-LINT

RESEARCH SOFTWARE, UNCOMMON SOFTWARE

• TeX, LaTeX
• UPPAAL

SERVER SOFTWARE

• Unix/Linux server administration.
• Firewall/Router administration.
• SAMBA administration.
• CVS, ViewCVS administration.
• Mail server administration (qmail).
• HTTP server administration (Apache).
• FTP server administration.
• CGI-BIN application development (PHP, GMP, standalone CGI).
• NNTP server administration (INN). development.

OTHER SKILLS

• Fluent German.
• Win32 API software
• HTML development.

PUBLICATIONS

• Articles
  • "On Best Rational Approximations" (accepted, in queue for publication).
• Books
  • "A Practitioner's Guide To The Design And Development Of Small Microcontroller Software" (work in progress).

COMMERCIAL PRODUCTS

• The ESRG Tool Set (a tool set for embedded system work).

Sound credit:  The Austin Powers series of films starring Mike Meyers.
This web page is maintained by David T. Ashley.
$Header: /cvsroot/esrg/sfesrg/esrgweba/htdocs/authindiv/dtashley/resumes/index.html,v 1.5 2003/05/11 08:17:53 dtashley Exp $