FPGA design for reflective memory network communication technology

On the hardware platform of Distributed Real-Time Simulation, a communication module based on reflective memory network was realized in FPGA. The module, as an infrastructure, could be integrated with others seamlessly. Information stream inside the module was analyzed. Following the "Store and Forward with FIFO" rules, hardware circuits were well designed, including Host Logic, Memory Logic, and Net Logic. In addition, kernel data structures were defined, and 64bits/32bits PCI bus compatibility problem was mainly solved. Finally, through the delay analysis of the design and experiments in field, the communication delay between two neighboring nodes reaches microsecond level.