Protocol conversion method of PCI communication bus to VME communication bus based on FPGA

In this paper, a protocol conversion method is proposed for converting the PCI communication bus to the VME communication bus. This proposal includes a detailed description of the FPGA-based PCI bus IP core protocol analysis and the algorithm for designing a finite state machine for PCI-VME bus protocol conversion. To test the system-level interconnection, an eight-axis electric locomotive network control system test platform is used. The test results confirm that the bus bridge is capable of performing reliable PCI protocol analysis and VME data bus communication. The development of this equipment provides essential technical support for advancing the autonomous process of China's VME bus-based locomotive control system.