May 27 – 29, 2026
CERN
Europe/Zurich timezone
There is a live webcast for this event.
Ask questions on discord: https://cern.ch/fdf-qa

Latency analysis of the CPU-FPGA interface in the Zynq UltraScale+ SoC

May 29, 2026, 10:40 AM
25m
500/1-001 - Main Auditorium (CERN)

500/1-001 - Main Auditorium

CERN

400
Show room on map
Talk Solutions to everyday digital design problems Solutions to everyday digital design problems

Speaker

Valerio Nappi (CERN)

Description

Real-time control algorithms for power converters in particle accelerators require flexible platforms capable of high iteration rates (up to 100 kHz).
This work evaluates the suitability of the Zynq UltraScale+ SoC (A53 cores) for such applications. After characterizing the access time of the most basic FPGA-CPU access path, we show how this path is unsuitable for real time controls. We then propose an alternative system, characterizing the critical metrics: PL access, Memory access, ACP latency performance, and Interrupt latency. We identify a suitable data path for real time controls and propose an exploitation paradigm for achieving reliable sub-microsecond latency.

Talk's Q&A End of talk
Talk duration 20'+10'
Will you be able to present in person? Yes
If we are unable to accommodate your oral presentation, would you be willing to consider presenting a poster instead? Yes

Author

Valerio Nappi (CERN)

Presentation materials