Research on High-Speed Acquisition Method of LIN Signals Based on FPGA and USB Interface

LIN (Local Interconnect Network) signals, as a type of serial communication used in automotive electronic systems, are crucial for vehicle diagnostics and performance optimization. This study has developed a high-speed signal acquisition system using a Field-Programmable Gate Array (FPGA) and a USB 2.0 interface for real-time monitoring and analysis of communication data within LIN signals. The system employs an FPGA to control an ADC module for signal level acquisition and utilizes a high-speed USB interface to transmit the collected data, with LIN signal recovery and parsing performed on the host computer. The experiments tested and evaluated the performance of this system under various LIN communication scenarios, demonstrating its high stability and reliability.