Design and confirmation of CAN bus controller based on Verilog HDL

One type of CAN bus controller was designed with Verilog HDL and tested by the aid of a Cyclone FPGA chip.This CAN bus controller was divided into three functional modules: interface management logic module,register module and CAN core module.Every module was designed with Verilog HDL according to their functions.The functions of these modules were simulated by means of the software Modelsim.The CAN bus controller was verified by FPGA chip,and tested together with a four-node CAN network.The testing results show that the CAN bus controller can implement the required functions.