Design of LXIbus Interface Circuit for HF Ground Wave Radar

According to the requirements of modularization and standardization, this paper presents the design principle of general purpose LXI bus interface for high frequency ground wave radar (HF GWR) based on LXI bus using DSP ADSP-21062, Ethernet controller DM9000A and dual-ported RAM (DPRAM). It describes the hardware design and data transmission mode in detail. With the advantages of high flexibility, integrity and speed, this interface circuit has been verified in practice.