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R-Car Gen3e SoCs have up to 20 per cent higher CPU speed, says Renesas

Wed, Jul 21, 2021

Six SoCs have been added to the R-Car series by Renesas Electronics. The R-Car Gen3e series is a scalable series of devices for entry- to mid-range automotive applications that require high-quality graphics rendering. They can be used in integrated cockpit domain controllers, in-vehicle infotainment (IVI), digital instrument cluster, driver monitoring systems, and LED matrix lighting.

They have increased CPU performance up to 50k DMIPS and 2GHz speeds. to help vehicle manufacturers navigate demands for continuous user experience, security, and safety improvements.

As applications such as augmented reality navigation and artificial intelligence (AI) -based digital automotive assistants grows, OEMs and Tier 1s need to balance the demand for larger, higher resolution displays and high performance chips with rising bill of material (BoM) costs and longer development times, explained Naoki Yoshida, vice president automotive digital products marketing at Renesas. The R-Car Gen3e devices provide a migration path and full compatibility with Renesas’ current R-Car Gen3 SoCs.

The six models that have been added to the R-Car Gen3e SoCs series are the R-Car D3e, R-Car E3e, R-Car M3Ne, R-Car M3e, R-Car H3Ne, and R-Car H3e.

All have increased CPU, with the R-Car M3Ne, R-Car M3e, and R-Car H3e operating up to 2GHz.

An on-chip real-time Arm Cortex R7 CPU eliminates the need for an external vehicle controller combined with a Renesas PMIC, which reduces BoM costs. Development times are also reduced with reference designs for fast boot, human machine interface (HMI) and functional safety.

Renesas offers board support packages updated with the latest versions of the Linux and Android operating systems.

Pre-integrated software enables higher application integration, for example for 2D/3D cluster HMI, welcome animation, rear-view camera, and surround view applications, explains Renesas.

VirtIO technology allows developers to easily add the reference solutions to existing applications without changing the existing Linux or Android application

The SoCs also supports ASIL-B system safety requirements for applications such as telltale monitoring and camera freeze detection, as well as for true hardware separation in non-hypervisor cockpits

The R-Car Consortium (RCC) partner ecosystem includes system integrators, middleware/application developers, and operating system and tools vendors, providing innovative solutions for the connected car, ADAS, and gateway markets that enable customers to reduce development time and accelerate time to market for new products.

The R-Car Gen3e SoCs are sampling now.

https://www.renesas.com

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Qi1.3 wireless charging reference design accelerates transmitter development

Thu, Jul 15, 2021

Following swiftly on the heels of the Wireless Power Consortium (WPC)’s Qi 1.3 specification, Microchip has released a compliant reference design. It includes everything needed to quickly develop a Qi 1.3-certified transmitter, says the company.

The Qi 1.3 specification requires authentication for improved safety when transmitting up to 15W of power between a transmitter and a receiver. To meet these requirements, Microchip’s wireless charging reference design includes the necessary tools and support for the seamless integration and certification of wireless charging systems in automotive and consumer applications.

The three-coil Qi 1.3 reference design integrates secure storage subsystem software with the wireless power microcontroller and enables custom topologies and foreign object detection (FOD) implementation.

Microchip is a regular member in the Wireless Power Consortium (WPC) and provided expertise during development of the recently released Qi 1.3 specification. Qi 1.3 mandates hardware-based authentication between transmitter and receiving devices for power transfer above 5.0W. By adhering to the new authentication standard, designers can ensure phones receiving 15W are receiving it from a Qi-certified authenticated transmitter to ensure safety.

The reference design includes a Qi controller, Qi application software, provisioned authentication controller that is a WPC-approved secure storage subsystem and crypto software libraries that execute on the Qi controller. It also includes complete schematics, bill of materials, software and design guidelines. Microchip is partnering with Avnet to make evaluation boards for the Qi reference design available to qualified customers around the world.

The reference design also incorporates MIC4605 and MCP14700 gate drivers, MCP16331 and MCP1725 regulators, an MCP6C02 current sense device, an ATA6563 CAN transceiver and an MCP9700 temperature sensor.

Microchip’s dsPIC33C family of devices run the Qi application software and the company also offers the ECC608/TA100 secure storage subsystem provisioned by Microchip as a licensed WPC Manufacturing Certificate Authority.

The Qi 1.3 wireless charging transmitter reference design is available for demonstrations and evaluations for qualified customers. The company will provide a license agreement to access the reference design software. Evaluation boards for these reference design will be available for purchase for qualified customers through Avnet in August 2021.

https://www.microchip.com

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Renesas enables HD video over SD cables for automotive cameras

Wed, Jul 14, 2021

Automotive manufacturers can deliver high definition (HD) video over low cost cables and connector that currently support standard definition video, by using the Automotive HD Link (AHL) from Renesas.

The RAA279971 AHL encoder and RAA279972 decoder use a modulated analogue signal to transmit the video, for transmission rates 10 times less than required to transmit HD signals digitally. The lower transmission rate means that traditional twisted pair cables and standard connectors and existing analogue video cables and connectors can be used.

Digital links such as SerDes require heavily shielded cables and high end connectors that cost significantly more than those for AHL. Additionally they may need to be replaced in five to seven years. They are also difficult to route because of a limited bending radius.

AHL is robust against noise and has a bi-directional control channel that operates independently of the video data, says Renesas. It can initialise, program and monitor the camera module. The camera can be controlled simultaneously over the same pair of wires (UTP) during video transmission to reduce the cost of installation. In comparison to a digital link in a rear view camera application, a digital link will degrade due to a failure in the cable harness or connector assembly, as weak signals can cause macroblocks to appear, hiding large portions of the viewing area. Using the same cable under the same conditions for comparison, the AHL will present a slight change in video colour or contrast, but all pixels will appear on the screen. The resulting image will accurately identify an object or person behind the vehicle.

According to Renesas, the AHL system allows automotive manufacturers to deliver advance safety systems in all vehicles, including economy models and not just luxury ones.

AHL supports resolutions from VGA up to 720p/60 or 1080p/30 enabling it to implement non-standard vertical resolutions.

There are also MIPI-CSI2, BT656, and DVP inputs and outputs to provide a flexible interface to support old and new image sensors.

The RAA279971 AHL encoder and RAA279972 decoder are available today. Renesas also offers the RTKA279971DA2000BU AHL encoder and the RTKA279972DA1000BU AHL decoder evaluation boards.

http://www.renesas.com

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Dual-output automotive navigation unit has sensor-based spoofing detection

Wed, Jul 14, 2021

The NEO-M9L navigation modules and M9140-KA-DR chip have been introduced by u-blox. They are built on the company’s M9 GNSS platform and use dead reckoning techniques to provide accurate position data when satellite signals are compromised or unavailable, says u-blox.

The NEO-M9L-20A and NEO-M9L-01A modules, and the M9140-KA-DR chip are specially designed for first-mount automotive designs. The modules and the chip are all automotive grade, with the NEO-M9L-01A offering an extended operational temperature range up to 105 degrees C, making it suitable for integration on the roof, behind the windscreen, or the hot conditions inside electronics control units (ECUs). Applications include integrated navigation systems, for example in-vehicle infotainment (IVI) and head units, integrated telematics control units (TCU), and vehicle to everything (V2X).

The modules include six-axis inertial measurement units (IMUs) which deliver low-latency 100Hz raw data output. The modules offer a low-latency 50Hz position update rate, for use in real-time applications. The automotive dead reckoning (ADR) output combines the GNSS fix with IMU data for accurate positioning output. Additional GNSS-only output enables seamless integration into third-party applications. The receiver also supports wake-on-motion, which enables smart features such as theft protection and power-efficient designs, explains u-blox.

The modules offer sensor-based spoofing detection for advanced security and robustness. The chip offers protection against possible GNSS signal spoofing, which can cause navigation systems to report faulty position data or time.

“Availability and trustworthiness of position output are increased by using concurrent reception of four GNSS constellations,” says Aravinthan Athmanathan, product manager, product centre positioning at u-blox.

All the module variants comply with AEC-Q104, the latest standard for ensuring the reliability of modules used in automotive applications. Engineering samples and the evaluation kits will be available by the end of September 2021.

u‑blox specialises in positioning and wireless communication in automotive, industrial, and consumer markets. The company has a broad portfolio of chips, modules, and secure data services and connectivity. It has headquarters in Thalwil, Switzerland.

http://www.ublox.com

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R-Car Gen3e SoCs have up to 20 per cent higher CPU speed, says Renesas

Qi1.3 wireless charging reference design accelerates transmitter development

Renesas enables HD video over SD cables for automotive cameras

Dual-output automotive navigation unit has sensor-based spoofing detection

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