Lattice extends MachXO3 FPGA security for automotive use

New versions of Lattice Semiconductor’s MachXO3LF and MachXO3D FPGAs have been announced. The MachXO3LF FPGAs are for automotive control applications and the MachXO3D FPGAs are for system security that support extended temperature operating ranges for automotive and other ruggedised applications.

The MachXO3D FPGAs augment the popular system control capabilities of the Lattice MachXO FPGA architecture, says Lattice Semiconductor. They include hardware Root of Trust (RoT), platform firmware resilience (PFR), and secure dual-boot support. The MachXO3D and MachXO3LF FPGAs target control, bridging, and I/O expansion applications for reliable operation in rugged environments, including advanced driver assistance systems (ADAS), infotainment, motor control, 5G communications infrastructure, industrial robots and automation systems, and defence systems, Lattice advises. They also support for an extended operating range -40 to +125 degrees C (junction temperature). They require a single 3.3V or 1.2V supply.

As more sensors and electric motors are integrated into vehicles, automotive systems will become exposed to the risk of malicious attacks and hacks. To immediately detect vulnerabilities and combat cyber attacks OEMs will demand electronic systems capable of reliable and secure operation in rugged environments, in different weather conditions, vibration and connectivity parameters.

The MachXO3D FPGAs’ security features include on-chip flash memory which secures bitstream and user data against malicious attacks via OTP mode and password protection. There is also an immutable embedded security block to enable security compliant with NIST SP-800-193 Platform Firmware Resilience (PFR) guidelines to protect, detect and recover firmware from unauthorised access. The on-chip flash enables single-chip, instant-on, and dual-boot images for fail-safe programming and in-field updates with flexible system with secure reprogramming to support reliable in-system updates.

“By collaborating with Lattice, the leading provider of low power FPGAs, we are able to provide developers in the automotive market with ready-to-use IPs that simplify their design efforts by accelerating implementation of networking controllers for CAN and LIN,” said Nikos Zervas, CEO of CAST. “With the extended temperature range for automotive and other ruggedised applications, the new MachXO3D automotive family of FPGAs will allow developers to achieve their performance and power consumption goals and get their products to market faster, while enhancing the security of their control systems,” he added.

MachXO3LF and MachXO3D FPGAs are supported by Lattice’s integrated design software suite, Lattice Diamond, a graphic user interface (GUI) -based FPGA design and verification environment with design and implementation tools optimised for low-power Lattice FPGAs. The latest version of Lattice Diamond, version 3.11.3, is now available.

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Wireless power receiver from Renesas has WattShare TRx mode

Renesas Electronics has added the P9415-R wireless power receiver to its portfolio. The 15W receiver uses WattShare technology and enables smartphones, power banks, and portable industrial and medical equipment, to wirelessly charge other mobile devices and accessories that also have wireless charging capabilities.

The P9415-R features up to 5W of transmit power capability in transmitter/receiver (TRx) mode, as well as receive up to 15W on Qi transmitters, enabling quick and convenient mobile device charging on the go.

Renesas believes the P9415-R will bring WattShare technology to a wider audience. It combines receiver and transmitter capabilities, allowing smartphones, smart watches, wireless ear buds and other devices to be wirelessly charged simply by placing them on top of a smartphone or other industrial and medical portable devices.

In WattShare TRx mode, the P9415-R enables these mobile devices to change the power flow direction and deliver up to 5W of power to charge other devices. Customers can use the same wireless power coil and same P9415 circuitry to both receive and transmit power wirelessly.

The P9415-R wireless power receiver has an MTP non-volatile memory for easy firmware and device function updates. It also has graphic user interface (GUI) support for user customisation.

It receives up to 30W in proprietary mode and has under voltage lockout down to 2.7V which increases the available charging area and connection times. Sensory accuracy has been improved compared with earlier devices in Renesas’ wireless portfolio to increase foreign object detection capabilities.

The receiver also has bi-directional communications to support proprietary authentication with encryption and x-y alignment circuitry for better receiver/transmitter device alignment.

It is also Renesas’ first WPC 1.3-ready wireless power receiver based on the Wireless Power Consortium’s latest inductive standard.

 Renesas produces both the power receivers (PRx) used in smartphones and other applications, as well as the power transmitters (PTx) used in charging pads and automotive in-car applications.

The P9415-R 15W WattShare wireless power receiver is available now.

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Renesas has mobility mission with latest reference design

Helping customers to accelerate the development of e-scooters, e-bikes, uninterrupted power supplies (UPS) and energy storage systems, Renesas Electronics has unveiled its 48V Mobility Winning Combination. The reference design uses a modular approach in hardware and software to showcase core and optional functional blocks that can be adopted for many 24 to 48V applications. These can range from e-scooters and e-bikes to lawn mowers, electric carts, robot cleaners, power tools and power banks. The reference design uses 15 Renesas ICs, including the ISL94216 16-cell battery front end (BFE), the HIP2211 100V MOSFET drivers, and RX23T 32-bit microcontroller for motor control. The 48V combination design is powered from a 25AHr li-ion battery that drives a 1600W inverter to attain speeds up to 5000 rpm.

Two boards that address the higher battery cell count and power levels mobility applications require. The BFE and charger board focuses on larger, higher voltage battery packs. The motor control and inverter board features synchronised current/voltage measurements and drivers that are pulse width modulated (PWM) to actuate the motor and monitor motor status. The algorithm with the hardware is suitable for driving brushless DC (BLDC) motors. There are also two optional boards – the wireless charging receiver board, and the Bluetooth Low Energy (BLE 5.0) control board.

For system control, there is a cost optimised, energy-efficient RX23T microcontroller with built-in floating point unit (FPU) and six high-performance timers specifically tooled for complex inverter control algorithms. The modular design is intended to help engineers reduce the time spent in software and hardware development and debug. The ISL94216 offers several features that balance and monitor system conditions to improve battery life and safety, in contrast to large cell count single-chip battery managers, the integrated ISL94216 performs independently of the microcontroller.

The collective also includes the ISL81601 60V bi-directional four-switch synchronous buck-boost controller for ultra-fast charging. The controller’s CC/CV charger profile is implemented through the system microcontroller.

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Subaru bases enhanced EyeSight system on Xilinx Zynq

Xilinx’s automotive-qualified (XA) Zynq UltraScale+ multi-processor SoC (MPSoC) has been selected by Subaru for its next generation EyeSight system as part of its advanced driver assistance system (ADAS) in its latest model which has been launched in Japan this week.

The Levorq model’s EyeSight system is vision-based, using stereoscopic cameras and will provide advanced features including adaptive cruise control, lane-keep assist and pre-collision braking, says Xilinx.

The vision system is based on Xilinx’s 16nm XA Zynq UltraScale+ MPSoC which provides the high-performance, low latency, and functional safety (ASIL) capabilities that the EyeSight system requires to accurately depict and react to dynamic driving scenarios.

Tetsuo Fujinuki, chief technology officer of Subaru said: “Stereo cameras are at the heart of Subaru’s ADAS applications. Unlike common approaches, the image processing technology adopted in our new generation system scans everything captured by stereo cameras and creates high-precision 3D point clouds, enabling us to offer advanced features such as pre-collision braking at an intersection and assisting with hands-off driving in traffic congestion on a highway. Xilinx technology plays an important role in this. Because Xilinx automotive devices contain built-in capabilities that allow us to meet strict ASIL requirements, they are unquestionably the best technology to implement Subaru’s new ADAS vision system.”

Programmable logic provider, Xilinx has over 20 years of automotive industry experience, offering hardware and software partitioning flexibility combined with a variety of networking connectivity options, functional safety architecture configurations, and security features for current and future autonomous drive modules.

Xilinx says it has shipped over 190 million devices globally for automotive use, with 75 million used for production ADAS deployments. It works with over 200 automotive companies, comprised of major Tier 1s, OEMs, and start ups around the world.

California-based Xilinx develops adaptive processing platforms for a variety of technologies, from the endpoint to the edge to the cloud. Xilinx is the inventor of the FPGA, hardware programmable SoCs, and the ACAP.

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