基于XVC网络协议的多FPGA远程更新与调试

Remote updating and debugging multi-FPGA based on XVC internet protocol

同步辐射光源硅像素探测器是面向北京先进光源对X射线探测的重大技术需求所研发的新型仪器。该探测器处于辐射环境中,且多个前端电子学读出板被放置在密封的冷却容器中。为在不打开冷却容器的情况下,脱离专用的USB-JTAG(Universal serial bus-joint test action group)下载电缆对现场可编程门阵列(Field programmable gate array,FPGA)进行远端升级,本文提出了一种基于XVC(Xilinx visual cable)协议,通过以太网,利用ARM微控制器控制FPGA的JTAG接口对其进行远程更新与调试的方法。该方案附加电路少,易于拓展,同时也提高了更新可靠性。

Background： Silicon pixel detector for synchrotron radiation is a new device designed for the technical need of X-ray detection of Beijing advanced light source. The entire detector is placed in a radiation environment, and the multiple frontend readout boards are placed in sealed cooling containers, thus the traditional Universal serial bus - joint test action group （USB-JTAG） cables can no longer be used. Purpose： This study aims to design and implement remote updating and debugging multi-Field programmable gate array （multi-FPGA） for the detector without opening the cooling container. Methods： In this study, a network based ARM microcontroller was used to accept configuration files via network and generate JTAG sequence to FPGA by means of Xilinx visual cable （XVC） protocol. Results： The remote updating and debugging of multi-FPGA were realized. Conclusion： This method improves the reliability of remote updating and debugging of FPGAs and is easy to extend with less extra circuits.