A Design of CAN, LIN Bus Test Board

This paper proposes a CAN, LIN bus board design based on STM32. This paper analyzes the need for the control commands sent by the computer to be transmitted to the bus-controlled components during automotive test, and analyzes the insufficiency of existing PC-CAN/LIN adapter boards. Then this paper designs a function board containing serial port, RS232 module, CAN transceiver and LIN transceiver, and writes embedded software. After testing, the board designed in this paper can receive the message sent by the computer and convert it into bus message, and send it to the bus, to achieve the test of buses.