I developed an open source time-to-digital FPGA core for CERN in 2011. This core enables the implementation of many TDC channels with a precision of 52ps in a low-cost Spartan-6 FPGA. Source code and documentation are available from the OHWR page.
I launched the first edition of the Breizh Entropy Congress, held in Rennes in April 2010. This meeting brought together a few hundred people interested in DIY and open source.
Passionate individuals and non-profit organizations from the region of Rennes, Brittany, France invite you to participate in the first Breizh Entropy Congress. This inter-disciplinary event focuses on free (as in freedom) creations and culture. Through a meeting fostering open-mindedness, exchange of ideas and learning, we hope to show solutions to technical, social and political problems, and celebrate free, reclaimed and creative art and technology.
This driver enables the use of the low-cost RT2501U/RT2571W SoftMAC Wi-Fi cards on platforms with very limited resources.
It is particularily well-suited for cost-sensitive consumer electronic devices. This driver has been used in mass production with the Nabaztag/tag devices (aka Nabaztag V2). Following the demise of Violet, the driver is now open source.
I have worked on the reverse engineering of the SoftMAC Wi-Fi chipsets from Intersil ("Prism54" chipsets), and used to be a maintainer of the prism54.org website.
I have notably developed :
I have now discontinued works related to Prism54 ; and prism54.org now links to p54, which is a more up-to-date driver for Linux and recommended for today's users. For archival purposes, the old project pages can be found here the mailing list archives are here : prism54-devel and prism54-users. Snapshots of the latest SVN revisions have been put here.