Master-Slave CPU Data Transmission System Based on PCIe Bus
Power system protection automation equipment has high-speed data transmission and storage requirements between multiple CPU boards.This paper introduces a master-slave CPU data transmission system based on the PCIe bus.The hardware system is built with Phytium FT2000/4 processor,and the software system is deployed through the em-bedded Linux operating system,PCIe device driver and application.The main CPU is responsible for data collection and processing,and the data is obtained from the slave CPU through the PCIe bus to complete the transmission and storage.The test results show that the system implemented by this scheme is stable and reliable,can effectively meet the applica-tion business needs of high-speed data transmission and real-time storage,and has good engineering application value.
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