IN Brief:
- Kvaser has introduced PCIe 4xLIN, a compact four-channel PCIe interface for LIN communication.
- The card provides four individually galvanically isolated LIN channels with FPGA-based Kvaser LIN-IP and 1µs timestamp resolution.
- The product targets desktop validation, industrial test systems, and hardware-in-the-loop environments.
Kvaser has introduced PCIe 4xLIN, a compact four-channel LIN interface for deterministic communication, precise timing analysis, validation work, and hardware-in-the-loop test environments.
The low-profile PCIe card provides four individually galvanically isolated LIN channels through a single 26-pin high-density D-SUB connector. It uses FPGA-based Kvaser LIN-IP, supports communication up to 20kbaud, and provides timestamp resolution of 1µs for correlation across validation and debugging workflows.
The card is compatible with Kvaser’s LINlib API and CANlib SDK, with support for Windows and Linux. It can operate alongside other Kvaser interfaces, allowing mixed test systems to combine LIN and CAN communication where vehicle, machinery, or industrial electronics platforms use both protocols. Linux support includes access to a precision hardware clock device for synchronisation workflows using tools such as phc2sys.
LIN remains widely used in local control functions where cost, simplicity, and adequate timing behaviour matter more than high bandwidth. Body electronics, actuator nodes, auxiliary control functions, sensor interfaces, and local switching systems often depend on LIN links that must behave predictably under fault, timing, and gateway conditions.
The growing density of distributed electronics has increased the need for more capable validation hardware, even on lower-speed networks. Pickering’s recent expansion of its PXI analogue output range points to the same test-and-simulation pressure, with automated benches expected to reproduce more realistic electrical and control conditions across complex systems.
Hardware-in-the-loop environments are becoming more demanding because low-speed communication buses no longer operate in isolation. A LIN node may interact with CAN, Ethernet, sensors, power events, diagnostics, and software-controlled gateways. Capturing that behaviour requires accurate timing, deterministic traffic generation, and hardware that can be synchronised with other measurement and simulation equipment.
Galvanic isolation is particularly useful in dense benches and industrial test rigs. Ground offsets, long cable runs, simulated electrical disturbances, and multiple instruments can distort measurements or damage equipment if isolation is inadequate. Providing isolation on each LIN channel reduces coupling risk and supports more robust multi-channel setups.
The 1µs timestamp resolution gives the interface a role beyond basic connectivity. Timing data can be correlated with actuator commands, sensor changes, diagnostic frames, and power events, making it easier to locate intermittent or sequence-dependent faults. That capability becomes more valuable as embedded software grows more complex and more behaviours depend on timing interactions between distributed nodes.
The compact PCIe format also suits permanent bench integration. USB interfaces are convenient during early development, but rack-based test environments often benefit from internally mounted cards with stable cabling, host-powered operation, and repeatable configuration. PCIe 4xLIN gives test-system builders another route for adding LIN capacity without increasing external hardware clutter.
Kvaser’s new interface lands in a validation market where even simple communication networks are being pulled into more sophisticated system-level test. As embedded architectures become more distributed, proving the behaviour of each local bus requires the same discipline now expected of higher-speed networks: synchronised timing, repeatable stimulus, clean isolation, and scalable automation.
