Ken.Wada

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President

As the president and owner of Aurium Technologies, an independent product design and consulting firm, Ken brings over 25 years of experience architecting and designing products and systems for various high-tech industries. His design experience includes such high-profile systems as the FASTRAK vehicle sensing system for toll roads and bridges and one of the 1st RAID servers while under contract for the National Security Agency. His expertise spans various disparate technologies from industrial automation, biotechnology, and high-speed optical networks. Ken has consulted for many small and large companies in the Silicon Valley area, and has been on the product design teams for three successful startups that have gone IPO. Ken holds four patents to his name. Three of the patents are in the biotech fields, and one deals with the rheological measurement of plastic feed stock material.

Ken.Wada

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    • Many times in an embedded system, we need to supply a constant or variable current to power a transducer, excite a sensor, or charge a laser.

    • A multi-tap delay buffer implementation usually maintains a single index to the elements within the buffer. Figure 1 shows the ring structure of the delay buffer.

    • Many embedded systems require a stable, low-noise DC reference. Here is a basic DC voltage source or a voltage reference.

    • Here's a bit-banging approach to solving the contact closure interface problem in a mechanical contact in switches and push buttons.

    • The ring buffer's first-in first-out data structure is useful tool for transmitting data between asynchronous processes. Here's how to bit bang one in C without C++'s Standard Template Library.

    • Code for an ARM SYSTICK timer that you can adapt for other timers, as decribed in Ken Wada's blog, "System ticks" (February 2013, Embedded.com).

    • Here's a simple way to implement a system tick timer.

    • The module can be an inexpensive time saver in embedded systems design. Ken Wada lists some of the modules he has used in embedded systems and asks what modules work for you.

    • It's important for embedded systems developers to watch basic semiconductor-market trends in our industry. Here's what Ken Wada tracks. What trends do you track?

    • As the president and owner of Aurium Technologies, an independent product design and consulting firm; Ken brings over 25 years of experience architecting and designing products and systems for various high-tech industries. Ken's design experience includes such high-profile systems as the FASTRAK vehicle sensing system for toll roads and bridges, and one of the 1st RAID