Compact Universal Timing Endpoint Based on White Rabbit
Project is obsolete. See cute-wr-dp for a similar board.
Introduction
The cute-wr project is a standalone White Rabbit Node implementation on a FPGA Mezzanine Card. The idea is to have a compact, low-cost and common WR NIC for synchronous DAQ frontends and other applications!
Project is obsolete. See cute-wr-dp for a similar board.
Structure Design
cute-wr is originally derived from and keeps firmware compatibly with the SPEC board. The White Rabbit Node Reference Design has detailed information on infrastructure design.
Gateware structure:
Features:
- Standalone Operation;
- Etherbone + sdb suppoort;
- Remote firmware upgrading & multiboot support; (in dev)
- Spartan 6 (XC6SLX45T-3FGG484C);
- 32MBit SPI FLASH (M25P32-VMF6P);
- 64Kbit I2C EEPROM (24AA64T-I/MC);
- FMC LPC interface;
- JTAG and RS232;
- External CLK reference (work in master mode);
- 125MHz CLK and PPS output;
- 3 user LEDs;
Application orientation
Timing distribution for LHAASO Project:
Please refer to:
- The proposed Large High Altitude Air Shower Observatory (LHAASO) project
- Guanghua Gong, Shaomin Chen, Qiang Du, Jianming Li, Yinong Liu, Huihai He, Sub-nanosecond timing system design and development for LHAASO Project , in Proceedings of ICALEPCS2011, Grenoble, France, 2011
Current status
| Date | Event |
|---|---|
| 20-10-2011 | Start of project. Framework design finished. |
| 29-11-2011 | Schematic and PCB drawing reviewed. |
| 15-02-2012 | PCB fabrication and assembly finished in Tsinghua. |
| 12-03-2012 | Start of the project management cute-wr on ohwr.org. |
| 14-03-2012 | First demo worked together with WR switch and SPEC. |
| 12-05-2012 | In-depth development and test with wr-cores::spll_ng branch, getting ready to publish a separate branch for cute-wr and other compact, standalone WR reference designs. |
| 12-06-2012 | Presented at IEEE realtime 2012 conference at Berkeley. Development of White Rabbit Interface for Synchronous Data Acquisition and Timing Control |
| 10-25-2012 | Release of cute-wr v2.0 |
| 27-01-2017 | Project is obsolete. See cute-wr-dp for a similar board. |
| Main issue is that the power chip of CUTEWR is not good enough for series production. |
Users list
- Large High Altitude Air Shower Observatory (LHAASO) project
- Daya Bay Reactor Neutrino Experiment
- China JinPing underground Laboratory (CJPL)
- Lawrence Berkeley National Lab (LBNL)
- Facility for Rare Isotope Beams (FRIB)
- American Biomedical Group(ABGI)
cute-wr_v2.jpg
Version 1.0 has been tested on March 5, 2012, and showed a similar
performance comparing with SPEC boards.
Version 2.0 tesetd on Oct, 25, 2012, tested under wrpc-sw and wr-cores
(branch:cute-wr).
27 January 2017
