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Table of Contents AboutClockTamer is a device manufactured by Fairwaves to provide a low-cost small-size configurable clock generator with GPS sync option. It is was specifically designed to be used with USRP, but nothing prevents you from using it with other device of your choice given it has external clock input. ClockTamer is not only Open-Source Software project, but is also an Open-Source Hardware (OSHW) project. All schematics, bill of materials and components placement are published in Downloads section. This Google Code project holds all source code you may need to work with ClockTamer and various instructions how to use and hack it. ClockTamer may be used as a reference clock, e.g. for: Use the ClockTamer mailing list to ask questions and for discussions. Buy it!Purchase ClockTamer from Fairwaves web-shop. News21 May 2011 Oscilloscope measurements for ClockTamer-1.2 has been published at Features and technical specification page. Thanks to Sylvain Munaut for this pictures. 24 January 2011 Alpha version of ClockTamer control GUI is available. Check it out from our source repository, under host/tamer-gui. At this moment documentation is almost non-existent and we invite everyone to improve it! 09 January 2011 ClockTamer is now available for European buyers from Olifantasia! US coverage is still in works. If you need ClockTamer and you're not from Europe - you could get one from Olifantasia (they ship internationally) or contact us privately. Other news is that we now have a mailing list for the project. Join it now! 04 October 2010 We very much appreciate all your interest to ClockTamers and it's not very easy to say this, but start of the sales is delayed again. A fab assembling ClockTamers failed to deliver our order on time again. We're working hard to sort this out and hope to get our ClockTamers next week to make them available for sale in the next two-three weeks. I can't express how much we're frustrated with all these delays and how much we do want to get ClockTamers ready for sale as soon as possible. We appreciate your patience, please stay with us just a little bit more. 28 September 2010 Update about ClockTamer production. PCB fab succeed in manufacturing our PCBs only from 3rd attempt, and so we have 3 weeks of delay. Tentative estimate is that we'll have ClockTamers available for sale at the end of Oct. Stay tunned! 5 August 2010
Answering a popular question - we don't have any ClockTamers in stock right now. We estimate to finish production run at the end of September and stock them soon after that. Look for the news for more information. You could also drop us an e-mail here and we'll notify you when ClockTamers become available. 11 July 2010 Technical parameters of ClockTamer-1.1 and ClockTamer-1.2 including schematics, PCB layout and bill of materials are available at this page now: Features and technical specification 20 June 2010 Here is a picture of ClockTamer-1.1beta. A small hardware patch you may see on the picture near the USB connector is what makes it "beta" (patch doesn't affect performance, though): It's smaller then ClockTamer-1.0, because we removed useless COM-port connector and few other unused elements. Now it's 35x86mm. 17 June 2010 We've measured phase noise picture of ClockTamer-1.2 (the final version). You may find it here. 3 May 2010 We've created a small Dev-kit to simplify re-flashing and debugging of ClockTamer firmware. With it you don't need to solder anything and you can connect you programmer to ClockTamer easily. We're about to start selling this kits for $35 - write us if you want one. Schematics of the Dev-kit will be published as usual. 1 May 2010 Production of ClockTamer-1.1 is approaching. We've received beta-samples of ClockTamer-1.1 PCBs from the fab and tests show they're functional. Mass-production of ClockTamer-1.1 is about to start soon! 25 February 2010 We finally managed to publish schematics and component placement for ClockTamer-1.0. Check it out in Downloads section. Right now it contains component placement only for the top side and miss bill of materials. We're working on fixing this. DocumentationUser documentation:
Developer documentation:
Other: LicensingAll project's source code is licensed under LGPL license. Schematics and their derivatives are licensed under Creative Commons Attribution-Share Alike 3.0 license (CC-BY-SA). Host part of the project is licensed under New BSD license. We're sorry for mixing all these licenses in a single project, but we see this way as the most appropriate. Pictures
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