用verilog实现的modbus协议的功能，可以供参考-Using Verilog to achieve the Modbus protocol functions, can be used for reference

modbus的fpga实现。opencores上最新版本。使用fpga实现，可以大大提高响应速度，对其功能进行模块化。-modbus of fpga implementation. opencores the latest version. Use fpga implementation, can greatly improve the response speed, its function modularity.

基于FPGA下的MODBUS通信驱动程序（RS-232通讯程序）-Based on MODBUS communication driver (RS232 communication program) FPGA under