429 portable bus simulation equipment based on USB interface

The utility model discloses a 429 portable bus simulation equipment based on USB interface, its packet of rubbing board card is equipped with USB interface chips, FPGA chip, 8 429 buses receipt chipsand 8 429 buses and sends the chip on the integrated circuit board, and USB interface chips is used for switching USB3.0's physics line or USB2.0's physics line and host computer electric connection to according to USB agreement and host computer communication, 429 buses agreement is realized to the FPGA chip to with USB interface chips electric connection, each 429 bus is received chip and is provided 1 receive channel, and each 429 bus is sent the chip and is provided 1 sendaisle, and 8 receive channel's the quantity of opening of opening quantity and 8 sendaisles can be controlled to the FPGA chip. The utility model discloses can adapt to USB2.0 and USB3.0 automatically to the quantity of configuration receive channel and sendaisle. 本实用新型公开了种基于USB接口的便携式429总线仿真设备，其包括板卡，板卡上设有USB接口芯片、FPGA芯片、8个429总线接收芯片和8个429总线发送芯片