This also avoids the need for expensive FPGA designs. Providing on-chip automotive interfaces (up to 20 CAN FD, 2 Flexray, and 7 LIN) ensures that the most complex sub-systems are addressed without the latencies caused by the otherwise required USB-to-network components. FPGAs (field-programmable gate arrays) are not a cost-effective alternative either and require additional development resources for FPGA programming. Alternative connected vehicle designs using generic extension components to connect CAN controllers generate high interrupt loads that slow the main processor down unnecessarily. NXP S32G2 processor block diagram (Source: NXP) On-chip interfaces and processing coresĬonnected vehicles and mobile machines also require native support of all relevant peripheral interfaces, such as CAN (FD), Flexray, and LIN. The integrated lockstep functionality for detecting errors during execution and data transmission, along with monitoring of other hardware-related faults, is yet another feature for safety applications. This also allows direct communication via the integrated safe fabric offers and lowers latencies. The performance boost is possible by integration of several previously separate functions in a single-chip design, thereby combining more overall performance on one die. This gives developers access to enough high-bandwidth processing power and high-performance connectivity to run tactile Internet applications with real-time 5G communication. To achieve this performance leap, the S32G2 processors integrate micro-controllers, application processors, network accelerators and a dedicated hardware security engine (HSE) on a single chip. This applies not only to major vehicle and mobility brands, but also to any latest commercial, construction or agricultural vehicle, overland and subway trains, and other types of mobile vehicles such as autonomous warehouse robots, and drones.Ĭompared to NXP’s previous automotive gateway platforms, the S32G274A delivers 15900 Dhrystone Mips (million instructions per second), which translates into more than ten times faster real-time and network performance. In addition, they must be real-time capable and secured in terms of ASIL D (automotive safety integrity level) safety and hardware security. The zero-downtime OTA (over-the-air updates) capability has to be considered as well. Such gateways are expected to deliver increasing processing performance and data throughput to satisfy recent requirements such as cloud connectivity for fleet management or vehicle subscriptions, V2X (vehicle-to-everything) communication, ADAS functions, and autonomous driving. The data transfer between the individual domain controllers or zonal computers/gateways and the local sensors and actuators must be processed and orchestrated with as little latency as possible. Increasingly, autonomous driving functions are also required. Other domain controllers support functions such as infotainment and in-vehicle experience, body and comfort, powertrain and vehicle dynamics, as well as safety and security for ADAS (advanced driver assistance systems). This continuous connectivity makes it possible to exploit the full potential of the vehicle data and to deploy new services and functional enhancements quickly and efficiently. This particularly applies to the smart mobility sector, where the number of vehicles that is connected 24/7 via 5G to the service-oriented gateways, is growing. In today’s age of digitalization, Industry 4.0, and the Internet of Things (IoT), high-throughput connectivity is one of the most critical functions for the interconnected devices. The complete article is published in the September issue of the CAN Newsletter magazine 2022. NXP S32G2 automotive processors power service-oriented gateways, domain controllers and ADAS safety controllers, or serve as zonal computers or gateways (Source: Microsys) Microsys has integrated it in a system-on-module (SOM) with typical applications in connected vehicles, mobile machines, and automotive test equipment. The NXP S32G274A vehicle network processor supports hardware security and functional safety according to ISO 26262.
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