HydraHarp 500 Software Version 1.0.0.0
PicoQuant GmbH - August 2025


Acknowledgements

The HydraHarp 500 hardware in its current version as of this release
uses the open source White Rabbit PTP core v. 4.0 licensed 
under the CERN Open Hardware Licence v1.1 and its embedded WRPC 
software licensed under GPL Version 2, June 1991. For Details please
see https://ohwr.org/projects/white-rabbit/ and the links to license
terms and related documents there. The WRPC software used in the 
HydraHarp 500 was minimally modified and in order to meet the 
licensing terms the modified WRPC source code is provided here.

When the HydraHarp software is used under Linux it uses Libusb to access 
the HydraHarp USB devices. Libusb is licensed under the LGPL which allows 
a fairly free use even in commercial projects. For details and precise
terms please see http://libusb.info. In order to meet the license 
requirements a copy of the LGPL as appliccable to Libusb is provided 
as part of the HydraHarp 500 software distribution media. The LGPL does not 
apply to the HydraHarp 500 software as a whole.


Trademark Disclaimer

Products and corporate names appearing in the product manuals or in the 
online documentation may or may not be registered trademarks or copyrights 
of their respective owners. They are used only for identification or 
explanation and to the owners benefit, without intent to infringe.


Contact and Support

PicoQuant GmbH
Rudower Chaussee 29
12489 Berlin, Germany
Phone +49 30 1208820-0
Fax   +49 30 1208820-90
email info@picoquant.com
www http://www.picoquant.com
