Guard your embedded secrets By Warren Webb, Technical Editor
As manufacturers eagerly roll out limited-resource network appliances, the embedded world is poised to duplicate desktop-security nightmares but with even greater consequences.
FROM EDN EUROPE: Simple boundary-scan techniques tackle sophisticated
systems By David Marsh, Contributing Editor
If you think that boundary-scan techniques are old news, think again. Today's new packaging technology is forcing test engineers to revisit old technologies. Meanwhile, flash memories and deeply embedded systems are continuously driving boundary-scan developments.
Design Features
Hot-swapping signals By Joshua Israelsohn, Technical Editor
Hot-swap designs were once reserved for medical-support systems, telcomm, or other "high-reliability" installations. now everybody wants to swap with the lights on.
Controlling the temperature of fiber-optic lasers By Jim Williams, Linear Technology Corp
Thermoelectric-cooler-based temperature controllers have some unusual requirements. They account for circuit- and thermal-design characteristics to provide climatic pampering for temperamental lasers.
Electronic film focuses on low power, high image quality By Brian Dipert, Technical Editor
Film-sized imaging subsystems enable photographers to use their cameras, optics, and other equipment investments in the new digital era. But mimicking film is no trivial challenge.
Tech Trends
Rugged devices join the revolution in revolution By Dan Strassberg, Senior Technical Editor
Electronics' invasion of mechanical systems is increasing the need for reliable, cost-effective mechanical measurements. Where there's rotation, there's often a gear, and where there's a gear, there's-at least potentially-half of a noncontact rotary-motion sensor. The other half is the fun part.
