In this paper, a remote FPGA-configuration method based on JTAG extension over optical fibers is presented. The method takes advantage of commercial components and ready-to-use software such as iMPACT and does not require any hardware or software development. The method combines the advantages of the slow remote JTAG configuration and the fast local flash memory configuration. The method has been verified successfully and used in the Demonstrator of Liquid-Argon Trigger Digitization Board (LTDB) for the ATLAS liquid argon calorimeter Phase-I trigger upgrade. All components on the FPGA side are verified to meet the radiation tolerance requirements.
@article{arxiv.2401.15746,
title = {JTAG-based Remote Configuration of FPGAs over Optical Fibers},
author = {Binwei Deng and Chonghan Liu and Jinghong Chen and Kai Chen and Datao Gong and Di Guo and Suen Hou and Deping Huang and Xiaoting Li and Tiankuan Liu and Ping-Kun Teng and Annie C. Xiang and Hao Xu and Yang You and Jingbo Ye},
journal= {arXiv preprint arXiv:2401.15746},
year = {2024}
}