Design of Multi-Channel Data Transmission System Based on PCIe-SRIO

In order to meet the long-distance and high-reliable transmission needs of multi- channel data, a multi-channel data transmission system based on PCIE-SRIO is designed. The Xilinx K7 series FPGA chip is designed, and the internal integrated PCIe and SRIO IP cores are used, and then the optical cable is connected to the optical cable to achieve long -range data sending and receiving. The system is based on the PCIe bus to realize the interconnection between the CPU chip and the FPGA chip, and the FPGA actively initiates and terminates the DMA transmission method to realize the high-speed interaction of multiple channels of data between the CPU chip and the FPGA chip. The internal logic of FPGA realizes SRIO interface based on HELLO packet format, and the sender uses Round-Robin arbitration mechanism to design multi-interface, which realizes the com-petition processing when multi-channel interfaces share a SRIO interface to send data at the same time. The results show that the designed system can realize data sending and receiving under 8 channels at most, which has certain reference significance for the application of long-distance transmission of interconnected data between boards.