PXIe平台可重构数字化核仪器软件框架设计

Digital Nuclear Instruments on PXIe Platform

为了简化核仪器在高数据传输领域的设计与应用,设计了一套运行于PXIe平台的可重构数字化核仪器软件框架。该框架由相互独立且均可编程的数字逻辑层、内核驱动层和应用框架层组成。通过修改该框架中的数字逻辑层和内核驱动层,即可设计出运行在PXIe平台上复用统一硬件模板的新功能核仪器。基于该框架设计了核信号实时采集卡,测试结果表明:此框架能够极大的简化核仪器设计流程并且数据传输稳定可靠,同时将板卡置于PXIe Gen2×4机箱单插槽内,其数据平均传输速率达到1.63 GB/s,平均传输效率达到理论传输的91.6%,满足高数据传输需求的核仪器的应用。

To simplify the design and application of nuclear instruments in the field of high data transmissions,a new reconfigurable digital software framework structure based on the PXle platform is designed,which can be applied to the digital nuclear instrument.The framework consists of a digital logic layer,kernel driver layer,and application framework layer and are all programmable and independent of each other.By modifying the digital logic layer and the kernel driver layer in the framework,the unified hardware template can be reused to design new functional nuclear instruments running on the PXle platform.A nuclear signal real-time acquisition is designed based on this framework.Results of the test show that systems based on this framework can simplify the nuclear instrument design process,and the data transmission is stable and reliable.In the PXle Gen2×4 chassis single slot,the average transmission rate of the framework is 1.63 CB/s,and the average transmission efficiency is 91.6%of the theoretical transmission,which meets the application of nuclear instruments in the field of high-speed data transmissions.