Rohde & Schwarz, a member of the IEEE and OPEN Alliance, is advancing the development of the new automotive Ethernet variant 10BASE-T1S by providing compliance and trigger & decode options. Analog Devices, Inc. (ADI) is a key provider of connectivity solutions in the automotive industry.
Rohde & Schwarz collaborated with ADI to use the R&S MXO 4 and 5 series oscilloscopes with the R&S MXOx-K560 option to decode the 10BASE-T1S protocol. The 10BASE-T1S Ethernet to Edge Bus, known as E2BTM from ADI, offers a low-complexity, high-flexibility edge node implementation for automotive applications.
The oscilloscope, known for its fast update rate and deep memory, can instantly capture, trigger, and decoding packets while also capturing both the big picture and the finest details of electrical signals with exceptional accuracy. It can also detect intermittent defects in the communication bus using fast acquisitions.
10BASE-T1S (IEEE 802.3cg) is a type of Ethernet networking technology used in automotive and industrial applications. ADI’s 10BASE-T1S E2BTM products provide highly optimized yet flexible hardware-based Ethernet edge node connection solutions.
The new edition not only introduces a new lower speed grade of 10 Mbps over lengths of 25 meters and beyond, but it also has novel capabilities such as multi-drop transmission, which eliminates the need for a switch. ADI’s E2B™ technology centralizes software to enable next-gen zonal architectures and software-defined vehicles (SDVs), eliminating the requirement for microcontrollers at edge nodes.
This technological advancement is particularly applicable for linking sensors and actuators throughout the car body, powertrain, and beyond to a domain or zonal controller.
On the R&S MXO series oscilloscopes, the decoded packets are displayed in a color-coded manner, thereby making it straightforward for ADI engineers to identify crucial protocol messages such as Beacon, Commit and MAC frames.
This allows for more efficient test validation, thus helping to enable shorter time to market. The 10BASE-T1S takes advantage of the new PLCA (Physical Layer collision avoidance) technology, making it essential to verify the timing and performance of various nodes connected onto the network. The time alignment of all decoded frames with the captured waveform simplifies debugging and facilitates precise timing measurements.
This technological innovation is especially useful for connecting sensors and actuators across the vehicle’s body, engine, and beyond to a domain or zonal controller.
The decoded packets on the R&S MXO series oscilloscopes are color-coded, making it easy for ADI engineers to recognize critical protocol messages including Beacon, Commit, and MAC frames.
This enables for more efficient test validation, which helps to reduce time to market. The 10BASE-T1S uses innovative PLCA (Physical Layer Collision Avoidance) technology, which makes it critical to evaluate the timing and performance of various nodes linked to the network. The time alignment of all decoded frames with the collected waveform simplifies debugging and allows for exact timing measurements.
ADI engineers can switch between different data representations, such as DME symbols, scrambled or unscrambled, to gain important insights on collected network traffic.
10BASE-T1S Ethernet technology has extra advantages because it can support a large number of nodes on a single network, making it perfect for complicated applications. Its short reach and low data rate make it both energy efficient and cost effective.
ADI’s innovative approach to 10BASE-T1S ensures that SDVs can deliver true value to OEMs by reducing form factors, lowering edge costs, shortening boot times, and providing bounded low latency, power savings, timestamping, and timed actuation, ensuring that all nodes in the system are synchronized and operate seamlessly.
With the R&S MXO series oscilloscope, engineers can further leverage its high-performance capability to debug their 10BASE-T1S communication link. Standard debug tool like the spectrum mode, zone triggers and fast acquisitions makes it easy to detect anomalies on the bus.
Furthermore, using the MXO’s ability to make standards-compliant 10BASE-T1S measurements in accordance with the IEEE 802.3cg and OPEN Alliance TC14 specifications, enables the automotive industry to ensure performance and interoperability of this growing automotive network technology.
Leadership Comments
Fionn Hurley from ADI remarked: “ADI uses Rohde & Schwarz oscilloscopes, delivering reliable and precise measurements for our industry leading 10BASE-T1S solution. This reinforces our commitment to offering high-quality, robust technology solutions to our customers. ADI takes a holistic approach to system design and understands the complexity of the challenges faced by our customers and helps them overcome these challenges. We’re helping to drive the automotive industry towards a smarter, more efficient future.”
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