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I think the references to LEON and SimplyRISC are superfluous. They belong on the Open source hardware page. Do others agree? Jeremybennett (talk) 12:10, 28 February 2009 (UTC)

In the absence of any comment I've removed them. Jeremybennett (talk) 16:30, 6 March 2009 (UTC)

Website down[edit] seems problematic... --Studleylee 14:50, 6/17/2014 (UTC)
there are no DNS servers on, but site seems to be accessible at --Marko (talk) 20:31, 21 September 2014 (UTC)
it is back again --Marko (talk) 14:47, 23 September 2014 (UTC) seems to be down... --Jdiemer 14:50, 5 November 2007 (UTC)
Works for me -- 20:14, 5 November 2007 (UTC)
Yes, here too again, thanks. --Jdiemer 09:16, 6 November 2007 (UTC)
Just for the records: According to the news, they had server stability issues from 28 Oct - 08 Nov 2007. --Jdiemer 15:38, 14 November 2007 (UTC) seems to be down since Friday 3:00, 22 July 2011 and up again Monday 8:00, 25 July 2011 (UTC)... --hkartadi 3:00, 25 July 2011 (UTC) — Preceding unsigned comment added by (talk)

OpenCores is often offline[edit]

The problem of is that it is offline very often. This should not happen, since the site has many advertimesnts on it from international companiese, i.e. they have should the money to buy and fix thier cheap/bad software and hardware. —Preceding unsigned comment added by (talk) 11:58, 29 January 2008 (UTC)

I note that the date of this comment is around the time ORSoC AB took over OpenCores. It could well be that just prior to this there were problems. I haven't noticed any particular availability problems in the last 9 months. Jeremybennett (talk) 16:32, 6 March 2009 (UTC)

OpenCores requires personal information for downloads[edit]

Opencores requires personal information for downloads. This seems antithetical to their open source goals; it may not cost money, but I shouldn't have to pay for it by divulging personal information either. —Preceding unsigned comment added by (talk) 22:24, 22 November 2008 (UTC)

Indeed! I just tried to register so I could download the OpenRISC documentation. They asked for all sorts of info about my workplace, name/phone/address, experience, and so on. They get very personal, with the form even having an entry for position! I told them, but I really don't think they have any business asking what position I like. :-) Also I live in Antarctica. My other skills are nunchucks, bowhunting, and computer hacking.

At the end of all that questioning, I'm told that they will consider adding me. That's it. Maybe they will send an email to gimme@the.damn.pdf and maybe not.

WTF? Seriously, they ask **way** too many questions. It would be wonderful if somebody would get past all that nonsense and then put the data (LGPL mainly!) up on a truly open web site. (talk) 05:00, 17 October 2010 (UTC)

*Goes to see if there's a torrent of a Lesser GPL sitedump* See, Bit Torrent has plenty of legal uses!
:Seriously though, that is messed up. I think SVN or browsing individual text files doesn't require a password though. At least I was able to read the README files. If the problem is bandwidth, then they should just post a daily/weekly/whatever torrent on the front page! (talk) 16:08, 16 September 2015 (UTC)

"01:34, 17 September 2015‎ Mindmatrix (talk | contribs)‎ . . (6,418 bytes) (-92)‎ . . (revert - source (I just browsed the source for several projects without registration)) (undo)" This is incorrect. You may not view .v .vhd and other similar source files. You are only allowed to view non-source-code files. You only made a cursory glance so that reversion was in good faith. If you can provide a way to access them without a user account, please show us how. See:,listing,cpu6502_true_cycle Notice that it's listed as GPL. (talk) 21:12, 23 September 2015 (UTC)

Really? Try,listing,6502vhdl and go to 6502vhdl/tags/rel/vga_lcd/rtl/verilog and see if it lists source files. The difference is that this project is not listed as GPL. Unreverted but can resubmit if this is only for GPL (check firs with many projects!). Also try using a SVN client to download it.2A04:1980:3100:1AAB:D556:F8A7:5B51:1F99 (talk) 23:19, 23 September 2015 (UTC)
It's there - you just missed it. Try cpu6502_true_cycle/branches/avendor/rtl/vhdl2A04:1980:3100:1AAB:D556:F8A7:5B51:1F99 (talk) 23:30, 23 September 2015 (UTC)
Oh hell, sorry for the drama. (talk) 05:28, 24 September 2015 (UTC)

Gate array[edit]

Grid array = Gate array? --Abdull (talk) 14:14, 29 June 2008 (UTC)

No one else has commented, but I'm sure you are correct. Jeremybennett (talk) 18:34, 26 February 2009 (UTC)
I've changed it Jeremybennett (talk) 12:07, 28 February 2009 (UTC)


I'd like to add a little about the history of OpenCores. I'd appreciate any help with references. Damjan Lampret, one of the founding team, states they started in 1999, but the earliest external reference I can find is on CNET in 2000 [1]. I also have an EE Times article about ORSoC taking over OpenCores in late 2007 [2]. I've always understood there was some sort of relationship with Flextronics. If anyone can provide a reference to this, I'd appreciate it. Thanks. Jeremybennett (talk) 18:32, 26 February 2009 (UTC)

Dubious: In October 2010 it reached 95000 registered users[edit]

1, It is currently mid September 2010. 2, The opencores site ( currently states there are more than 95000 registered users. —Preceding unsigned comment added by (talk) 20:08, 16 September 2010 (UTC)

There may well be 95000 people who registered using a throw-away email account so that they could download something. You could do that, forget the nearly-useless account, then make a new account a year later in the same way. Probably 99% of the accounts are used just once, to download a PDF. Speaking of which, anybody have copies on a truly open web site? (talk) 05:05, 17 October 2010 (UTC)


In the section titled "OpenRISC ASIC", I can't make any sense of the statement I've bolded in this quote from the article, and the references don't help, either:

In April 2011 OpenCores opened donations for a new project to develop a complete System on a chip design based on the OpenRISC processor and implement it into an ASIC-component. OpenCores affiliated with OpenCores, for example OpenSPARC and LEON.

Seems garbled to me! Can anybody help fix this? yoyo (talk) 16:26, 5 April 2014 (UTC)