S32G domain controller chip released, what does it mean for vehicle data server


Editor’s note: This article is from the WeChat public account “Cookie Puff” (ID: YummyCookiePuff), author “Cookie Puff”, 36 氪 released with permission.Original title “Enable Vehicle Data Server-S32G Domain Controller Chip” Recently at CES 2020, NXP released a new generation of S32G vehicle network processors.As the latest processor of the NXP S32 series, S32G takes the automotive industry’s entire vehicle EE architecture to high performance, and further advances the modern design of the sub-domain architecture.According to the ABI research report, there are currently more than 40 million connected cars running on the road, and vehicles can generate over 4G of vehicle data per hour.Large-scale vehicle data services can bring new opportunities and experiences to OEMs and owners.The large-scale transmission of vehicle raw data to the cloud for processing cannot meet the requirements of application scenarios in terms of delay and bandwidth. Data-driven vehicle services have put forward higher requirements for vehicle data processing capabilities.With the improvement of the vehicle architecture towards sub-domain control and cross-domain integration, the service-oriented gateway adopted by the new EE architecture is expected to require 10 times the performance of the current vehicle gateway microcontroller.In addition to the improvement of computing power, the new architecture also puts forward higher requirements for vehicle network, functional safety, and information security.The idea of ​​the Internet + car is precipitating and optimizing from the top down. The idea of ​​the Internet + car originally originated from vehicle products developed by the new forces of automobile manufacturing, and has gradually spread throughout the industry in recent years.Tesla and the new wave of car-making forces that have emerged in China four or five years ago. After several years of actual combat, some valuable experience is being precipitated in the industry chain.The emergence of new first-tier suppliers to provide Internet manufacturers with intelligent parts for the Internet makes the design of vehicle products more optimized, and some traditional car companies have also established cooperation with major Internet companies to establish intelligent network connections.the company.In this Internet + car evolution activity, the entry of chip manufacturers has pushed the optimization idea of ​​Internet + to the extreme, enabling upper-layer products to simplify the overall design and provide more powerful product functions.Take OTA as an example, why is the current vehicle OTA a much more complicated and error-prone thing than a mobile OTA?In the traditional automotive EE architecture, there are dozens to hundreds of functional ECUs. These functional ECUs are provided by different vendors. There is no unified central code warehouse, which runs a variety of different operating systems and application software.As for the number of vehicle code lines, the scale reaches hundreds of millions.In the past, the decentralized functional architecture made cars not have central brain processors to handle software logic like modern mobile phones.Doing a full-vehicle OTA in a decentralized EE architecture is like tying 30 people’s feet together and everyone taking a step forward at the same time. This coordination difficulty is much more difficult than only 2-3 people doing this.The design of the modern EE architecture is dedicated to centralized processing of software logic, which continuously reduces the number of ECUs in the entire vehicle, reducing complexity and cost.The development of vehicle-specific chip processing capabilities has enabled software logic to be centralized and data to be better shared.From the central gateway to the vehicle-mounted data server data as a service (Data-As-A-Service), the enhanced chip processing capabilities of the gateway controller and its central position to connect vehicle data make it naturally suitable as a vehicle-mounted data server.In the vehicle design of the sub-domain architecture, different domain controllers register services with the gateway, discover services, and use services.The domain controller and the service-oriented gateway form a distributed system inside the vehicle.The vehicle-mounted data server with data and computing power is no longer a simple routing and forwarding message role. On the one hand, it can provide public data storage and sharing services for the entire vehicle, and on the other hand, it can generate new data based on data processing and processing ((Such as cross-domain fusion data) to serve each domain.Some of the connected car data services that were originally processed in the cloud can also be deployed on the vehicle side to provide real-time services for vehicle HMI and autonomous driving.In the past, signal and control-driven design ideas are slowly changing to data and service-driven modern vehicle EE architecture design.The Internet + the car has opened a door to the value mining of on-board data. The goal of data analysis is to make an impact. It acquires information from the original data to learn knowledge, achieves profound insights, and then realizes wisdom to make an impact.The modern vehicle EE architecture enables vehicle data to be centrally processed and valued, rather than just fleeting signals on various buses.Some key features of the NXP S32G domain controller chip S32G chip include: Performance: The S32G processor provides ASIL D-compliant MCU and MPU processors, and application-specific network hardware acceleration to support real-time requirements in complex environments; informationSecurity: S32G includes high-performance hardware security acceleration and PKI support for trusted key management; functional security: S32G provides processors required by ASIL D, including ARM Cotex-M7 micro-controllers that support synchronous mode (lock-step)And multiple lock-step clusters of the ARM Cortex-A53 application processing core.The S32G architecture diagram is as above, including 3 pairs of Cortex-M7 cores, running in synchronous mode.The two cores in each pair run the same instructions, providing support for the ability to handle abnormal error detection, while different pairs of cores can perform different tasks.The other four Cortex-A53 cores can be configured to run in synchronous mode (2×2), so that each pair of cores can run tasks on two cores simultaneously, or if this processing redundancy is not required, the four A53 cores can also be configured asIndependent operation mode.In terms of communication, S32G has 20 CAN interfaces, 4 Gigabit Ethernet interfaces and 2 PCIe 3.0 interfaces, providing flexibility for various application support.Network acceleration is one of the key features of S32G.Without it, Gigabit Ethernet will consume 90% of the processing power of the ARM core when fully loaded.With the accelerator enabled, this performance drops to about 0.2% of the available performance, allowing the CPU to handle a range of other tasks freely.This article originally appeared on the WeChat public account: Cookie Puff Search Concerns Don’t Get Lost.Create a new “Smart Car and Internet Technology” group chat, welcome to add the group owner WeChat 6080901 to join the group (please note the company name when joining the group)..

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