<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Altera's DE1 comes close. Unfortunately has only 512K SRAM and other stuff not needed to implement the RISC5..</div><div><a href="http://www.altera.com/education/univ/materials/boards/de1/unv-de1-board.html">http://www.altera.com/education/univ/materials/boards/de1/unv-de1-board.html</a></div><div><br></div><div>I think Altera's DE2-115 would work. But its more expensive as its FPGA is much bigger than actually needed for our purposes.</div><div><a href="http://www.altera.com/education/univ/materials/boards/de2-115/unv-de2-115-board.html">http://www.altera.com/education/univ/materials/boards/de2-115/unv-de2-115-board.html</a><br><br>Paul, your comments?</div><div><br>br, Jörg</div><div><br>Am 06.03.2014 um 04:18 schrieb Srinivas Nayak &lt;<a href="mailto:sinu.nayak2001@gmail.com">sinu.nayak2001@gmail.com</a>&gt;:<br><br></div><blockquote type="cite"><div><span>Dear All,</span><br><span></span><br><span>Collected few points from our last discussions, that we should look at when we think of porting FPGA Oberon to a new board.</span><br><span></span><br><span>- Verilog tool chain support needed.</span><br><span>- Need to check native clock speed of board and clock divider code.</span><br><span>- New mapping of names and location of the pins, if needed.</span><br><span>- Small and simple do-it-yourself-daughter boards, for SD-card hard disk, mouse, wireless modules, needed if not found in-built on board.</span><br><span>- Minimum 1MByte (2x256Kx16) of extremely fast (10ns) old fashioned static RAM; memory interfacing trouble should be minimum.</span><br><span>- USB programability.</span><br><span>- Cheaper.</span><br><span></span><br><span>I am a novice. If missing anything, please add.</span><br><span>Do we have any boards having all this?</span><br><span></span><br><span></span><br><span>With thanks and best regards,</span><br><span></span><br><span>Yours sincerely,</span><br><span>Srinivas Nayak</span><br><span></span><br><span>Home: <a href="http://www.mathmeth.com/sn/">http://www.mathmeth.com/sn/</a></span><br><span>Blog: <a href="http://srinivas-nayak.blogspot.in/">http://srinivas-nayak.blogspot.in/</a></span><br><span></span><br><span>On 03/04/2014 06:40 PM, Paul Reed wrote:</span><br><blockquote type="cite"><span>Hi all,</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><blockquote type="cite"><blockquote type="cite"><span>I feel sad that Spartan 3 is becoming obsolete.</span><br></blockquote></blockquote></blockquote><blockquote type="cite"><blockquote type="cite"><span>I agree. The more recent Spartan-3E based Nexys-2 board from Digilent</span><br></blockquote></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>A few points of background about the Digilent Spartan 3 board which may help.</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>First, don't be sad! &nbsp;;-) &nbsp;Everything of course becomes obsolete in our</span><br></blockquote><blockquote type="cite"><span>world (tech); it's actually useful that Digilent have discontinued this</span><br></blockquote><blockquote type="cite"><span>board in a rather timely fashion (just after I released the binaries for</span><br></blockquote><blockquote type="cite"><span>it, bang!) as a reminder that sooner-or-later, they would have done so</span><br></blockquote><blockquote type="cite"><span>anyway. &nbsp;As in all things (like Windows XP!) support cannot (of course) go</span><br></blockquote><blockquote type="cite"><span>on forever. &nbsp;Around the time I started the project, the board was even</span><br></blockquote><blockquote type="cite"><span>better value for money at $109, and has gradually been creeping up in</span><br></blockquote><blockquote type="cite"><span>price ever since. A clue. :(</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>Even though I noticed that the silk-screen says copyright 2004, I chose</span><br></blockquote><blockquote type="cite"><span>this board for the project to replace the Ceres because it is simple, and</span><br></blockquote><blockquote type="cite"><span>because ETH have over 200 of them which they currently use in several</span><br></blockquote><blockquote type="cite"><span>courses. &nbsp;They all seem to be the 200Kgate version, but (depending on</span><br></blockquote><blockquote type="cite"><span>whether you believe the tools) the current RISC5 machine only just fits.</span><br></blockquote><blockquote type="cite"><span>Hence I have tended to recommend that people buy the 1000Kgate version if</span><br></blockquote><blockquote type="cite"><span>they wish to experiment, as the additional cost was marginal, all things</span><br></blockquote><blockquote type="cite"><span>considered.</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>The simplicity of the board means that it is 'just enough' (with the</span><br></blockquote><blockquote type="cite"><span>addition of a small and simple do-it-yourself-daughterboard for the</span><br></blockquote><blockquote type="cite"><span>SD-card hard disk, mouse and wireless network module) to implement the</span><br></blockquote><blockquote type="cite"><span>Oberon system in a nice resource-constrained and understandable way.</span><br></blockquote><blockquote type="cite"><span>Porting the simplicity, rather than the system, to another board would be</span><br></blockquote><blockquote type="cite"><span>quite hard.</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>(The RISC processor itself is relatively easy to port to other FPGA</span><br></blockquote><blockquote type="cite"><span>boards. &nbsp;I have had it running in various guises on Xilinx FPGA boards</span><br></blockquote><blockquote type="cite"><span>made or not made by Digilent, and also on an Altera FPGA board, for</span><br></blockquote><blockquote type="cite"><span>example.)</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>The real killer feature about the Spartan 3 board is the 1MByte</span><br></blockquote><blockquote type="cite"><span>(2x256Kx16) of extremely fast (10nS) static RAM (as in, real good</span><br></blockquote><blockquote type="cite"><span>old-fashioned SRAM, not pseudo-SRAM for example!). &nbsp;I haven't found a</span><br></blockquote><blockquote type="cite"><span>board which provides sustained, completely random-access cycles anywhere</span><br></blockquote><blockquote type="cite"><span>near as fast; anything else I have seen would imply a memory interface</span><br></blockquote><blockquote type="cite"><span>which would dwarf the rest of the whole design in its complexity. &nbsp;Of</span><br></blockquote><blockquote type="cite"><span>course, I'd be delighted to be proved wrong about this. :)</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>HTH</span><br></blockquote><blockquote type="cite"><span>Paul</span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote><blockquote type="cite"><span>--</span><br></blockquote><blockquote type="cite"><span><a href="mailto:Oberon@lists.inf.ethz.ch">Oberon@lists.inf.ethz.ch</a> mailing list for ETH Oberon and related systems</span><br></blockquote><blockquote type="cite"><span><a href="https://lists.inf.ethz.ch/mailman/listinfo/oberon">https://lists.inf.ethz.ch/mailman/listinfo/oberon</a></span><br></blockquote><blockquote type="cite"><span></span><br></blockquote></div></blockquote></body></html>