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Tracealyzer 4.6 is designed for easier porting says Percepico

Fri, Feb 11, 2022

Tracealyzer 4.6 has official support for Zephyr RTOS and Microsoft Azure RTOS ThreadX. The release also includes Percepio’s next generation trace recorder library with improved support for snapshot trace. Snapshot recording allows users to access DevAlert, Percepio’s cloud service for monitoring application code executing in deployed IoT devices.

The trace recorder library is for runtime monitoring that benefits both Tracealyzer and DevAlert, said the company. It is designed to be far easier to port to other software platforms and to allow more efficient monitoring of deployed IoT systems and tracing of multi-core systems. The recorder library features more efficient snapshot recording, where trace data is saved in a ring buffer on the target system, for both Zephyr and ThreadX, in addition to the previously supported streaming recording.

CEO, Johan Kraft said: “Both streaming trace and snapshot trace are now supported in the same solution and use the same trace format, which makes it far easier to maintain and improve. Moreover, this will soon enable us to provide an official SDK [software development kit] for partners and customers that wish to integrate Tracealyzer and DevAlert with their RTOS of choice, or with bare-metal firmware.”

Kate Stewart, vice president of Dependable Embedded Systems, The Linux Foundation, commented: “Tracealyzer support for Zephyr is a very welcome addition to the embedded and IoT ecosystems. The ability to visualise code execution is a key tool for developers working with resource constrained devices to be able to efficiently debug defects and release products”.

Another innovation in this edition is the dynamic legend feature, which improves legibility of Tracealyzer’s timeline views, so users can quickly see which events belong to which process or thread. This is particularly valuable for operating systems such as Linux, where the number of threads can become unwieldy, explained Percepio.

The new Tracealyzer recorder library is now integrated into Zephyr and will be included in the upcoming Zephyr 3.0 release.

Tracealyzer 4.6 is available now from Percepio’s web store and through its worldwide network of distributors.

Percepio provides visual trace diagnostics for embedded and IoT software systems in development and in the field. Percepio Tracealyzer combines software tracing with powerful visualisations, allowing users to visually spot and analyse issues in software recordings during development and testing.

Percepio DevAlert is a cloud service for monitoring deployed IoT devices, combining automatic, real-time error reporting with visual trace diagnostics powered by Tracealyzer. Complimentary evaluation licenses are available for both products.

Percepio collaborates with leading vendors of processors, operating systems and development tools within embedded system and IoT such as Arm, IAR Systems, Infineon, NXP Semiconductors, STMicroelectronics, Renesas Electronics, Wind River Systems, as well as IoT cloud vendors such as Amazon Web Services.

Percepio is based in Västerås, Sweden.

http://www.percepio.com

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Compact antennas are designed for Wi-Fi 6 and Wi-Fi 6E applications

Thu, Feb 10, 2022

Two series of three antennas each by Linx Technologies support Wi-Fi 6 and Wi-Fi 6E applications in the 2.4, 5.0 and 6.0GHz bands. Both series are compact and therefore suitable for IoT applications, said the company.

Antennas in the ANT-W63-MON series are compact monopole tilt/swivel whip antennas that work with multiple ground plane configurations. The hinged design allows for the antenna to be positioned for optimum performance. The MON series is available with an SMA plug (male pin) or an RP-SMA (female socket) connector.

The ANT-W63-WRT series are panel-mount di-pole antennas. The compact size allows low-profile mounting making them less likely to be accidentally damaged, said Linx. The WRT antennas are designed with an integrated counterpoise that eliminates the need for additional groundplane, making them suitable for applications with non-conductive or RF-transparent enclosures. The ANT-W63-WRT antennas are available in a variety of cable length and connector options, including SMA plug (male pin), RP-SMA plug (female socket), MHF1/U.FL type plug (female socket), and MHF4-type plug (female socket.

The antennas add 6GHz variations to the company’s WRT and MON product lines. CEO Tolga Latif, said: “With the continued expansion of Wi-Fi 6 in industry, . . . . customers will be better prepared to meet the growing demand for increased signal coverage and faster Wi-Fi 6 / 6E devices.”

The WiFi 6 antennas are available now from Linx Technologies’ distributor and manufacturer representative networks.

Linx Technologies strives to minimise the risk, delays, and technical challenges for design engineers to make products wireless and connect them to the IoT. Linx manufactures wireless components including antennas, RF connectors and cables, RF modules, and remote controls.

https://linxtechnologies.com

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Offline switcher IC reduces BoM for bias power supplies

Thu, Feb 10, 2022

A universal AC high voltage input, non-isolated offline switcher IC from Diodes addresses the challenges associated with using a bias power supply. The AP3928 switcher IC is optimised for situations where higher power levels are mandated, such as in industrial control or home automation systems, home appliances, and IoT devices.

The AP3928 has a 600mA maximum output current that allows for a 10W output power rating. A key differentiator of this high voltage switcher IC is that it supports conventional offline, non-isolated flyback configurations, as well as more streamlined non-isolated buck configurations, keeping the bill of materials (BoM) spend to a minimum, claimed Diodes.

Peak current and switching frequency will continuously reduce as the load decreases, meaning that the IC can achieve heightened degrees of efficiency in light load conditions and is therefore suitable for use in equipment that spends prolonged time in sleep mode.

The AP3928’s low standby power of less than 30mW is suitable for small domestic appliances and IoT devices, where it is important to conserve available battery power.

The AP3928 switcher IC is supplied in a compact SO-8 package. It meets high voltage creepage requirements and can support operational junction temperatures up to +150 degrees C. Over-temperature, output short, overload and open-loop protection functions are included and there is also under-voltage lockout.

Diodes is a Standard and Poor SmallCap 600 and Russell 3000 Index company. It delivers semiconductor products to companies in the consumer electronics, computing, communications, industrial, and automotive markets. Its portfolio includes discrete, analogue and mixed-signal products and packaging technology. The company has 31 sites around the world, including engineering, testing, manufacturing, and customer service.

http://www.diodes.com

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NFC IC provides security tamper detection for IoT applications

Wed, Feb 09, 2022

Certified security is combined with a tamper status detection mechanism and battery-free sensing in the NTAG 22x DNA StatusDetect IC family by NXP. The ICs measure a change in ambient conditions, such as moisture, liquid fill level or pressure and allow developers to combine secure authentication with opening status detection or condition monitoring of products to help maintain a secure supply chain and product integrity.

Physical products can be authenticated by leveraging the NTAG 22x DNA IC’s secure unique NFC (SUN) authentication message feature. This allows manufacturers to cost-effectively combat counterfeits and supply chain fraud, said NXP.

The electronic tamper status detection of the ICs enables manufacturers or product users to verify a product’s unauthorised opening. By measuring capacitive changes in an item’s environmental conditions such as moisture, pressure or fill level, upon a simple tag readout, it is also possible to ensure product quality remains intact or capture digital sensing data for healthcare, retail or industrial applications.

According to NXP, the inclusion of security-certified NFC sensing turns a tag into a simple battery-less sensing device to detect a physical product’s first opening status, or a change in its specific ambient condition. It can help manufacturers protect product integrity, whilst enabling a new level of intelligence to assure product quality

The NTAG 22x DNA family is Common Criteria EAL3+ -certified, and features a powerful, cryptographically secure authentication message that dynamically changes on every NFC phone tap, making the taps unclonable, without requiring a user application.

The NTAG 22x DNA StatusDetect also includes configurable conductive or capacitive tamper detection, with once-open status irreversibly stored and protected in the IC memory without the need for a dedicated app. The conductive mode is suitable for tamper-evident labels and seals fixed on to a product or its package. The capacitive mode is suitable to integrate the tag into a physical product, and is also harder to reconstruct by a fraudster, said NXP.

The StatusDetect ICs can also be used as a passive sensing device to detect an environmental change influencing the capacitance value, interpreted with a mobile or cloud-based application. This facility allows new applications for medical IoT devices, such as a plaster that can detect moisture levels for wound care, fill level sensing for smart injectable dosage devices. It can also be used for consumer products as refill reminders based on package fill levels and leak detection.

Security features include a 7byte identifier, a SUN message authentication using an AES-128 key and has user memory protected with 32-bit password or with mutual authentication with AES-128 key.

The StatusDetect devices have capacitive measurement with up to 64 granular steps and automated mirroring of UID, NFC counter and status value into IC’s user memory as part of NFC-NDEF message, secured with a SUN message code.

The ICs are available in sawn and bumped wafer format (120 and 75 micron) and with an internal tuning capacitance of 50pF.

http://www.nxp.com

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Tracealyzer 4.6 is designed for easier porting says Percepico

Compact antennas are designed for Wi-Fi 6 and Wi-Fi 6E applications

Offline switcher IC reduces BoM for bias power supplies

NFC IC provides security tamper detection for IoT applications

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