High Accuracy Timing IP Core (HATI)
FPGA core enabling sub-nanosecond synchronization
The HATI (High Accuracy Timing IP) is a FPGA core intended to enable sub-nanosecond synchronization accuracy once it is integrated onto a third-party hardware that it is connected to Safran’s WR-Z device by using optical fiber links. The IP core is able to achieve this performance thanks to the use of White Rabbit protocol (based on IEEE-1588, Sync-E and precise clock compensation).
The only requirement is that the network device holds a FPGA directly connected to the port which will receive the synchronization from the network, since the HATI core needs to introduce and recover certain traffic flow which will be used in the synchronization process.
The HATI allows the distribution of the time and frequency with a sub nanosecond accuracy and picosecond level precision through standard fiber optic for distances up to 80 km in point-to-point links. It provides deterministic delivery of timing information (time and frequency) for time-critical applications by using ethernet over fiber optic links.
The HATI solution enables WR capability on end nodes, achieving ultra-accurate synchronization performance in an easy deployment, with optimal resources utilization.
The latest version has been adapted to work on the following list of FPGA families: Kintex7, Kintex7-US, Kintex-7US+, Virtex7 & Virtex7-US+, Zynq 7 & Zynq US+, Artix-US+. You can contact us to check for other platforms.
The HATI can be acquired in two different ways: as a FPGA IP core to be integrated in customer hardware through an integration project, or as an integrated feature on our third-party partners’ network devices which will be connected to a WR-Z device under license.
Advantages
Sub-nanosecond accuracy at last hop
Connecting to the optical interfaces of a WR-Z device, the developed technology allows to correct the internal clock offset after receiving periodical data exchanges from the master WR-Z device.
Highly accurate and deterministic timing solution integration on third-party network devices
Thanks to the HATI solution, it is possible to synchronize FPGA-based third-party network devices with high accuracy without the need of using expensive oscillators/clocks or other dedicated hardware. The use of WR over optical fiber up to the end nodes allow to improve the scalability and simplify the deployment and maintenance of the timing network.
USE CASES
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Status of the uTCA Digitizer BPM design for SARAF Phase II
One of the crucial monitoring systems of any particle accelerator is the Beam Position Monitor (BPM). The purpose of a BPM is to provide information on the position, phase and current of the beam along the accelerator line.
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Pico Second Timing for High Energy Facilities
Timing systems are used for providing a common notion of time to all the elements of the facility as well as for the generation of discrete triggering events and periodic signals needed by the various elements. In addition, it also can be used for radio frequency dissemination across the whole facility.
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High Accuracy Timing for Exchanges
Improve accuracy and precision to and within their matching networks, provide better transparency to exchange participants, high resolution timestamping for network latency monitoring and the ability to monetize time distribution as a service to market participants
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FEATURES
- Sub-nanosecond time accuracy
- Picosecond level precision
- Distance range: over 80 km using fiber
- DWDM compatible
- Dynamic compensation of asymmetries caused by weather conditions
- Easily integrable and compatible with multiple FPGA families
- Optimized FPGA resources utilization
SPECS
- Long-term PPS offset measurement
- Max-Min (ps) 280,66
- Mean (ps) 52,54
- Dev. Std. (ps) 43,16
