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介绍了在LXI C类接口模块的基础上,设计的基于PCI总线的LXI B类接口模块。重点解决了基于IEEE1588协议的LXI精密时钟同步技术。在模块设计中采用了FPGA对时间信息加盖时戳和直接获取网络数据包的方法,以提高系统的定时精度。该模块可以与传统仪器组合,构成低成本、高性能的LXI仪器。
The LXI Class B interface module based on PCI bus is introduced on the basis of LXI C interface module. Focus on the IEEE1588 protocol-based LXI clock synchronization technology. FPGA used in the module design time stamping time stamping and direct access to network data packets to improve the timing accuracy of the system. The module can be combined with traditional instruments to form low-cost, high-performance LXI instruments.