| 面向空间应用高可靠图像数传设备的设计与实现 |
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| 引用本文： | 郭林,江源源,陈健飞,曹松,李慧军,陈晓敏.面向空间应用高可靠图像数传设备的设计与实现[J].空间科学学报,2011,31(4). |
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| 作者姓名： | 郭林 江源源 陈健飞 曹松 李慧军 陈晓敏 |
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| 作者单位： | 中国科学院空间科学与应用研究中心,北京,100190 |
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| 摘 要： | 针对空间高速图像数传任务需求，设计并实现了一种采用SpaceWire总线传输协议的高速图像数传设备．该设备的硬件以FPGA为控制核心，完成对SpaceWire协议芯片的初始化配置、收发数据包处理、中断和异常状态处理等操作．重点阐述了FPGA的可靠性设计，包括状态机设计、异步时钟域设计和数据包传输与链路错误的恢复设计．测试表明该设备能够稳定可靠地实现140Mbit／s的图像数据传输，对于链路的突发错误在一定时间内具有错误数据恢复能力，能够有效保证传输数据的正确性和稳定性．
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| 关 键 词： | SpaceWire总线 FPGA 状态机 异步时钟域 错误恢复 |
Design and Implementation of High Reliability Image Data Transmission Unit on the Space Application |
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| GUO Lin JIANG Yuanyuan CHEN Jianfei CAO Song LI Huijun CHEN Xiaomin.Design and Implementation of High Reliability Image Data Transmission Unit on the Space Application[J].Chinese Journal of Space Science,2011,31(4). |
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| Authors: | GUO Lin JIANG Yuanyuan CHEN Jianfei CAO Song LI Huijun CHEN Xiaomin |
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| Institution: | GUO Lin JIANG Yuanyuan CHEN Jianfei CAO Song LI Huijun CHEN Xiaomin (Center for Space Science and Applied Research,Chinese Academy of Sciences,Beijing 100190) |
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| Abstract: | SpaceWire is an onboard data-handling network for spacecraft which offers high-speed, low power,simplicity,low cost,and architectural flexibility.The unit uses SpaceWire protocol to implement high speed image data transmission for space application.The FPGA can control the system to realize initialization and handling of data packets transmission,interruption and error status.The reliability design approach of FPGA was elaborated on,including the design of state machine,asynchronous clock domains,data trans... |
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| Keywords: | SpaceWire bus FPGA State machine Asynchronous clock domains Error recovery |
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