Blue circuit board
Welcome to My Home Page

I am an embedded systems consultant specializing in software development for consumer electronics. I have worked with start-up companies to research and develop new prototypes and add features to existing products. Below is a brief resume, contact me for my current resume, or to discuss my qualifications in more detail.

I have been developing embedded systems since 1995 for both large and small companies, on a variety of products in the consumer, defense, and industrial markets. Some examples are toys, computer peripherals, networking hardware and communication equipment. I really enjoy my work designing and engineering new products and bringing them to completion.

This website also includes some resource pages on subjects I have researched in my work developing embedded systems and consumer electronics. I also blog about these topics at Blog.EmbeddedCoding.com and Discourse on Embedded Signal Processing at EECatalog.com. I you would like to learn more about me, see my interview for the EEWeb Featured Engineer series.

Embedded Consulting

Here are some examples of the services I offer:

I can supplement your engineering team as needed in any phase of development. For example, a mistake found in a schematic review will save time and expense as well as the cost of a re-spin of the board. If you have a difficult integration problem or hardware issue to diagnose, I can work on a temporary basis to solve it. If you are a start-up, I can serve in an advisory role, my familiarity with the project would enable me to quickly step in to help if needed. Please feel free to contact me to discuss your project needs.

If you are designing a new product or prototype, I strongly recommend an off-the-shelf board to develop firmware before designing your custom circuit board. These development boards are sometimes called reference designs or single board computers (SBC). They will allow you to save development time and substantial engineering expenses. I believe your final bill of materials will be lower as well. For example, you will have a better idea of the minimum amount of Flash/SDRAM your design requires before the final hardware design review. I can use my experience to help you avoid many such issues and quickly complete your prototype or final product. If you have a design that you are considering, please describe it to me in an e-mail or give me a call and I will recommend a board for you to use.


E-mail: ac@aaronclarke.com                                            Telephone: 716-514-4141

Consulting opportunities that will utilize my professional experience in
electronic prototype and product development and my strong problem solving skills.

Aaron Clarke (Sole Proprietorship), Lockport, NY
Embedded Systems Consultant, July 2007-Present
• Diagnosed issue with Ethernet ports on prototype ARM Embedded Linux system.Fixed issue with Ethernet PHY addressing by updating Linux kernel and drivers.Troubleshooting crash issue on newly developed Samsung ARM11 debian embedded system.Set up BeagleBone Black Eclipse development environment for new product under development.Developed Debian Linux-based OS and drivers on TI ARM Cortex-A8 DM3730 processor module.Customized linux device driver to support TFT LCD display with OMAP Display Subsystem (DSS) module.Developed Linux build system for Freescale i.MX ARM system for embedded hardware manufacturer.Added USB interface to WiFi product for manufacturer of embedded modules .Evaluated capacitive touchscreen product for Raspberry Pi, diagnosed I2C problem with logic analyzer.Ported STMicroelectronics USB device stack to ARM processor system running FreeRTOS .Updated Agricultural GPS product for new PIC18 microcontroller and GPS receiver chip.Developed firmware for wireless system using Semtech 433MHz transceivers and PIC18 microcontrollers.Ported the Microchip Graphics Library to a new grayscale LCD controller for a PIC24F product prototype.Delivered PIC display driver and customized graphics firmware on time to meet aggressive schedule.Debugged product firmware and rewrote an embedded USB Host stack to support common input devices.Customized the Microchip HID USB device bootloader for a Microchip PIC18F industrial product.Ported U-boot, Apex, and vivi bootloaders to bring up new ARM-based products.Created custom embedded Linux kernels for ARM processors.Developed custom JTAG configuration scripts for programming NAND flash for production.Created custom boot code to support products with only NAND flash NVRAM.Maintained embedded Linux builds and ported new features to wireless access point.Developed shell and PHP scripts to boot embedded Linux systems with custom configurations.Diagnosed packet processing and IP filtering issues with embedded Linux switch.Debugged setup and administration issues for embedded Linux system and Linux server.Integrated software modules and debugged hardware prototypes for resource constrained ARM7 system.Performed design reviews of schematics and layout for consumer electronic prototypes for two clientsTested EMC compliance of prototypes at accredited laboratory.

Fisher-Price Inc., ,  East Aurora, NY
Project Engineer, November 2004-July 2007
• Developed electronics for multiple consumer products.
(request full-resume for more details)
keywords: 8-bit, 32-bit, ARM7, C, HID, MIDI, PSOC, RTOS, USB, audio, contract manufacturer,
codec, flash, signal processing, video.

ATTO Technology, Inc., Amherst, NY
Systems Engineer, August 2002-November 2004
• Developed firmware for iSCSI storage switch.
(request full-resume for more details)
keywords: C, Ethernet, Linux, TCP/IP, UML, XScale, iSCSI, logic analyzer, network storage,

Sierra Research, Buffalo, NY, now part of DRS Technologies, Inc.
Engineer, June 2001-August 2002
• Developed VxWorks drivers and embedded software modules.
(request full-resume for more details)
keywords: C, C++, Ethernet, ICD, Linux, Matlab, Perl, PowerPC, RS-232, RS-422, SLIP, UDP/IP, 
VxWorks, bash, data-flow, gcc, serial

Amherst Systems, Inc., Buffalo, NY, now part of Northrop Grumman Electronic Systems
Engineer, December 1997-January 1999
• Contributed to a wide variety of embedded software projects.
(request full-resume for more details)
keywords: Alpha, C, C++, GPIB, LabWindows CVI, RS-232, StrongARM, TCP/IP, UDP, VxWorks
gcc, logic analyzer, parallel port

VoCAL Technologies, Ltd., Amherst, NY
DSP Engineer, February 1996-June 1997
• Led team developing modem and fax firmware and hardware for Japanese client.
(request full-resume for more details)
keywords: 16-bit, C, DSP, Perl, VLIW, algorithm, fax, fixed-point, modem

Dynamics Research Corp.,  Tonawanda, NY
Computer Programmer, June 1995-February 1996
• Awarded patent for work on data-acquisition system (U.S. Patent #5805464).
(request full-resume for more details)
keywords: BASIC, C, FFT, LabWindows CVI, balancing, data acquisition, real-time, vibration

Computer Languages  Assembly, BASIC, C, C++, C#, FORTRAN, Pascal, Perl, PHP.
Microprocessors     68000, ADI-2181, ARM (ARM7, ARM9, Cortex), fixed point,
                    DSP, LPC2134, LPC2138, OMAP, PIC18, PIC24, PowerPC, PSoC, 
                    S3C2410, S3C2443, XScale.
Operating Systems   DOS, Linux, MicroC/OS-II, UNIX, VxWorks, Windows.
Software            Altium, Apex, Emacs, gcc, MathCAD, Visual Studio, Mathematica,
                    Matlab, mobiclip, OrCAD, PVCS, U-Boot, Visio, Visual Source Safe,
                    Vivi, Razor, RCS.
Technologies        Embedded Linux, GPIB, EMI, ESD, Ethernet, firmware, iSCSI,
                    HID, microcontrollers, modem, SLIP, TCP/IP, UDP,
                    USB, UML, VME, WDK, WHQL, Windows Logo Testing.

Altium Designer: Schematic capture and PCB layout.
ARM Developer's Conference 2006.
Mathworks Matlab Image and Video Processing Seminar.
Microsoft Windows Hardware Engineering Conference (WinHEC) in 2006 and 2007.
Microsoft Vista LogoFest (WHQL) at Microsoft 2006.

B.S. Electrical Engineering, University at Buffalo, February 2000.
• Developed audio signal compression system using psychoacoustics in Matlab.
B.S. Mathematics, University at Buffalo, June 1995.
• Concentration in Applied Mathematics.
A.S. Engineering Science, Erie Community College, Williamsville, NY, June 1990.
• Awarded Engineering Society of Buffalo scholarship.

Institute of Electrical and Electronics Engineers (IEEE).
IEEE Signal Processing Society.

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