1553B总线仿真与测试的PXIe模块设计
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上海大学特种光纤与光接入网重点实验室 上海 200444

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TN911

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Design of PXI Express module used for 1533B bus simulation and test
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Key Laboratory of Specialty Fiber and Optics Access Networks, Shanghai University,Shanghai 200444, China

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    摘要:

    针对于检验星上载荷单机的1553B接口功能是否正常的要求,提出一种基于FPGA的3U PXIe外设模块的软硬件设计方案。PXIe控制模块可通过PXIe总线对1553B模块进行配置,并能控制与传输载荷1553B信号的仿真与测试数据。该设计完全模拟某卫星星务计算机1553B接口的真实电路以及电气特性,按需求实现了总线BC,BM功能,通过B-6131总线协议芯片,配置出上述功能的两路1553B总线接口线路,高度贴合实际应用场景。通过星载平台测试软件的操作,工作在BC模式下的一路1553B通道可进行自定义消息发送,也可以开启一段时间广播,长抱环测试等半自动化测试,实现自适应总线测试功能。所有出现在1553B总线上的消息都会被另一个工作在BM模式下的总线通道捕获到,从而实现所有总线数据的监视存储功能。

    Abstract:

    To meet the requirement of testing whether the 1553B interface function of the single machine of the on-board payload is normal, a software and hardware design scheme of a 3U PXIe peripheral module based on FPGA is proposed. The PXIe control module can configure the 1553B module through the PXIe bus and control and transmit the simulation and test data of the 1553B signal of the payload. This design fully simulates the real circuit and electrical characteristics of the 1553B interface of a certain satellite′s on-board computer, and realizes the BC and BM functions of the bus as required. Through the B-6131 bus protocol chip, two 1553B bus interface lines with the above functions are configured, which are highly consistent with the actual application scenarios. Through the operation of the on-board platform test software, one 1553B channel working in BC mode can send custom messages, and can also start a period of broadcasting, long loopback test and other semi-automated tests to achieve adaptive bus testing. All messages appearing on the 1553B bus will be captured by another bus channel working in BM mode, thereby realizing the monitoring and storage function of all bus data.

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李景晨,陈健,何理波.1553B总线仿真与测试的PXIe模块设计[J].电子测量技术,2025,48(9):111-118

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  • 在线发布日期: 2025-05-23
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