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FAQ

What happens when an MCU powers up?

May 27, 2022 By Jeff Shepard

MCU start up is a highly structured process designed to ensure proper operation. Numerous elements are involved including initial power/voltage sequencing and regulation, oscillator startup, the use of a vector table, boot loaders (including possible secure boot) and application initialization. This FAQ walks step-by-step through the various elements involved during the start-up of a MCU. […]

Filed Under: Embedded, FAQ, Featured, Software Tagged With: FAQ

MCU Bits and Bytes: sizes, types, and uses

May 26, 2022 By Jeff Shepard

Bits are the 1s and 0s that form the basis of digital information. A group of 8 bits is a byte and forms the basis of digital computing. Bits and bytes are used for storing and processing information as well as other functions in a digital IC. This FAQ begins with a brief review of […]

Filed Under: 16-bit, 32-bit, 8-bit, FAQ, Featured, microcontroller, Products Tagged With: FAQ

Smart buildings and the IoT: Zoning systems

April 20, 2022 By Asem Elshimi

buildings and IoT

There are significant benefits to moving some decisions in smart HVAC systems close to the application and away from the cloud. Asem Elshimi, Silicon Labs We’ve probably all experienced an office environment that always felt too cold or hot no matter the weather. And we’ve all experienced the fruitlessness of asking the building facilities team […]

Filed Under: Applications, FAQ, Featured, IoT Tagged With: FAQ, siliconlaboratories

The Doppler effect: From highly ridiculed to absolutely indispensable, Part 2

April 19, 2022 By Bill Schweber

Originally derided as scientifically erroneous, the Doppler effect is now a vital tool in all aspects of technology, ranging from microscopic to galactic. Doppler, back in the day – and now The explanation of the Doppler effect is almost intuitive to us, with our understanding of wave phenomena along with available frequency sources and measurement […]

Filed Under: Aerospace and Defense, Applications, FAQ, Featured, Telecommunications, Wireless Tagged With: FAQ

The Doppler effect: From highly ridiculed to absolutely indispensable, Part 1

April 18, 2022 By Bill Schweber

Originally derided as scientifically erroneous, the Doppler effect is now a vital tool in all aspects of technology, ranging from microscopic to galactic. Engineers are familiar with many “effects” ranging from widely used ones such as the piezoelectric effect to somewhat lesser-known ones such as the RF skin effect and even less-familiar ones such as […]

Filed Under: Aerospace and Defense, Applications, FAQ, Featured, Wireless Tagged With: FAQ

Edge computing security: Challenges and techniques

April 14, 2022 By Aimee Kalnoskas

By Rob Oshana, Vice President Software Engineering, Research and Development, Edge Processing at NXP Semiconductors In today’s connected world, a growing number of applications depend on embedded devices, collecting and acting upon data from a wide range of physical processes. As the computing power of the Systems-on-Chip (SoC) at the heart of these devices continues […]

Filed Under: Applications, FAQ, Featured, IoT, Telecommunications Tagged With: FAQ

Connector standard helps pave the way to the IIoT

April 14, 2022 By Eric Leijtens

A new universal connectivity standard will help bring Single-Pair Ethernet to the Industrial Internet of Things. Eric Leijtens, TE Connectivity The rise of the Industrial Internet of Things (IIoT) places new demands on industrial networks. With the increasing number of IIoT nodes, there’s a need for a simplified, economical communication infrastructure at the field level. […]

Filed Under: Applications, FAQ, Featured, IoT Tagged With: FAQ, teconnectivity

Satellite-based search-and-rescue, Part 4: Enhancements, even the moon

March 17, 2022 By Bill Schweber

A sophisticated satellite-based system allows pinpointing a person’s location in a dangerous, isolated situation on land or sea. It thus hopefully speeds their subsequent rescue in many cases. This final part looks at the next generation of system satellites and some ideas for a similar lunar system. The MEOSAR satellites The most recent enhancement to […]

Filed Under: Aerospace and Defense, Applications, FAQ, Featured Tagged With: FAQ

Satellite-based search-and-rescue, Part 3: Space segment and satellites

March 16, 2022 By Bill Schweber

A sophisticated satellite-based system allows pinpointing a person’s location in a dangerous, isolated situation on land or sea. It thus hopefully speeds their subsequent rescue in many cases. Cospas-Sarsat uses three types of satellites: low-Earth orbit search-and-rescue (LEOSAR), medium-Earth orbit search-and-rescue (MEOSAR), and high-altitude geosynchronous orbit search-and-rescue (GEOSAR satellites). There are five LEOSAR, seven GEOSAR, […]

Filed Under: Aerospace and Defense, Applications, FAQ, Featured Tagged With: FAQ

Satellite-based search-and-rescue, Part 2: Ground segment and transmitter beacons

March 15, 2022 By Bill Schweber

A sophisticated satellite-based system allows pinpointing a person’s location in a dangerous, isolated situation on land or sea. It thus hopefully speeds their subsequent rescue in many cases. Over one million emergency beacons are in use worldwide, all operating at 406 MHz (with some exceptions, called out below). Cospas-Sarsat does not manufacture or sell beacons. […]

Filed Under: Aerospace and Defense, Applications, FAQ, Featured, microcontroller Tagged With: FAQ

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