-------- Original Message -------- Subject: Re: Demon Core From: Ian Davis <[email protected]> To: Joel Holdsworth <[email protected]> CC:
Hi Joel, I've got a small site for the Logic Sniffer here: http://mygizmos.org/ols/index.html Please direct future contact to: [email protected] The Dangerous Prototypes website also has a support forum for Logic Sniffer here: http://dangerousprototypes.com/forum/viewforum.php?f=23 The demon core was released under GPL2 so feel free to leverage it on those terms. Note the current Logic Sniffer fpga (XCV250E) is very full. Minor changes should be fine, but adding anything major will doubtless be a problem. It was designed for maximum logic density on Xilinx fpga's only. Many of the design choices won't port easily to other fpga vendors (like Altera). Now... not to dump on your idea, but you're going to face some challenges. A couple points... First, the various vendors want to differentiate themselves. Assuming similar advanced triggers, you should still expect differing numbers of terms, range checks, edge checks, states, etc... Mostly because of differing fpga flavors. Bigger parts = more features. Second, I based demon core on HP16550 style triggers. I doubt HP/Agilent cares about an low volume open source project. Commercial vendors however are viewed in an entirely different light. I have no idea what HP/Agilent patents the demon core infringes upon -- assuming any are still valid. Such concerns will give commercial vendors pause. In any case, I'll be happy to offer suggestions. Can't promise I'll have the time to develop new logic though. Cheers! -- Ian Joel Holdsworth wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > > Dear Ian, > > Sorry to write to you on your work e-mail. I've been struggling to > find any other contact details for you online. > > I'm writing to you from the sigrok open source project, which is a > project about building an open source software suite to support all > kinds of signal analysis devices including logic analyzers and MSOs. > > We are in the early stages of exploring the possibility of building a > flexible/universal FPGA logic analyzer firmware. Our initial thoughts > are being assembled here: http://sigrok.org/wiki/Fpgalafw > > - From my review of prexisting projects, it seems like your Demon core > for the OLS is one of the more mature projects, so me may end up > starting with this as a base, but I didn't want to do anything without > first talking to you. > > I wondered if you would you like to participate in this effort in any > way? Just hearing your thoughts or advice would be helpful, or if > you'd like to get fully involved that would also be great. > > So let me know if you have any thoughts about this. > > Best Regards > Joel Holdsworth > > > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.11 (GNU/Linux) > Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/ > > iQEcBAEBAgAGBQJRdS40AAoJEIsWlGmq62IgWFYH/2l3UZoAkb4I402l2dgSc6S4 > 92xwBN31grVGdrZsOxGqY6PdMI65bAV6dfwRZbvnO8m3jkzhOt5Y+rgSj9Eh0Srz > 4fDTKJSuvPEd+O9SwnnpXJLW+zPgRDfG2Ru0tVdHHvFesHBrQraWU4Zsyr3Xh2eF > BBAzkDq5Jhyec7/wjNm6xpSrQimN7nt/UjWTvslz+35B7LJaYulv5NGrdEmArG8o > NecqW/iK4jP5KxZDWArx43cYCgGhRr+cGkBkx6w8Gi90EP5jQ9WjuDU5aEfdp9cX > rgAio6f4wI5qNzZWySQjHr3cYx7Sghh2aOyukG9eK6Xh6hXfzz0VZYpcp6jDMcE= > =Q2eF > -----END PGP SIGNATURE----- > > ------------------------------------------------------------------------------ Try New Relic Now & We'll Send You this Cool Shirt New Relic is the only SaaS-based application performance monitoring service that delivers powerful full stack analytics. Optimize and monitor your browser, app, & servers with just a few lines of code. Try New Relic and get this awesome Nerd Life shirt! http://p.sf.net/sfu/newrelic_d2d_apr _______________________________________________ sigrok-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/sigrok-devel
