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Description
The Shanghai Soft X-ray Free Electron Laser (SXFEL) is scheduled for a digital and intelligent upgrade over the next two years, aiming to achieve fully autonomous operation. This upgrade requires timestamping the BPM measurement results in the beam diagnostics system to enable synchronous acquisition of all measurement data at SXFEL. A new prototype of the digital BPM signal processor (DBPM) has been developed based on a Zynq UltraScale+ MPSoC FPGA. In addition to high-speed data connectors for the ADC board, the design features an FMC slot to accommodate a White Rabbit timing board for receiving bunch ID and trigger signals as timestamps. It also includes 10 GB SFP ports to support high-speed data transmission between processors. In this paper, the design of the hardware, firmware, and software of the upgraded BPM signal processor is presented.
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