KVM function card based on LPC bus

The invention discloses a KVM function card based on an LPC bus, and the function card comprises: a VPX interface module which can achieve the connection with a PC and other equipment with a VPX corresponding interface; a switching module that can be used for switching multiple paths of input signals into one path of signals; a FPGA control module that is used for completing LPC bus communicationand controlling the switching module; a USB expansion module that is used for realizing expansion of one path of USB and two paths of USB; a power supply module that is used for supplying power to different types of power supplies of the modules; the VPX interface module is connected with the switching module, the switching module is respectively connected with the FPGA control module and the USBexpansion module, and the FPGA control module is connected with the VPX interface module through the LPC bus. The advantages and beneficial effects are that the board card realizes rapid and stable switching of eight paths of