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http://www.xilinx.com/products/spartan3/s3boards.htm is the $99 S3 starter kit (orderable over the web). Austin PS: for anyone playing around with ancient FPGAs, give yourself a break, and just order the latest technology to play with.Article: 70801
> From: Thomas Womack <twomack@chiark.greenend.org.uk> Well, the US does not consider the UK an "evil empire" (at least not since the war of 1815), so the export rules vary by country. Last I looked many years ago, Albania was at the bottom of the list... Regarding max toggle rate, LUT and clock-to-Q are just one ingredient, routing is the bigger one. Present routing structures favor complex designs, but hurt very simple situations, like toggling flip-flops. Peter Alfke >> (The idea was to avoid helping the "evil empire" develop better missile >> guidance systems). > > OK, I suppose that makes a certain degree of sense; I wonder slightly > how the big microprocessor vendors get round that issue. There were > those Apple adverts saying that their machine was by export-control > standards a supercomputer, but I've seen plenty of dual-G5 boxes on > my side of the Atlantic. > > With my Dr Evil hat on, I wonder slightly how you set a maximum toggle > frequency when the LUT propagation time is already down to 700ps or so > -- I wonder if it's a matter of refraining from heroic engineering > efforts to keep parasitic capacitance down in the flip-flops, or a > couple of lines in the depths of the hardware-compiler? > > TomArticle: 70802
Tom, I think you're getting the wrong end of the stick. Xilinx make their parts go as fast as they want. They then have to publish an FTOG figure which the US government then uses to decide if the chips should be restricted, and if so, to which countries. Presumably you're British, so (according to the export rules!) not part of the 'axis of evil'. You'll get the parts OK, but don't build them into something you're planning on selling in North Korea. Or there'll be ....trouble... Cheers mate, Syms. p.s. Google for microprocessors "export restrictions" "Thomas Womack" <twomack@chiark.greenend.org.uk> wrote in message news:jwj*wscoq@news.chiark.greenend.org.uk... > > With my Dr Evil hat on, I wonder slightly how you set a maximum toggle > frequency when the LUT propagation time is already down to 700ps or so > -- I wonder if it's a matter of refraining from heroic engineering > efforts to keep parasitic capacitance down in the flip-flops, or a > couple of lines in the depths of the hardware-compiler? > > TomArticle: 70803
Austin, What sort of JTAG download cable is included in that kit? I don't recognise it. Ta, Syms. "Austin Lesea" <austin@xilinx.com> wrote in message news:cbq4cp$2kr4@cliff.xsj.xilinx.com... > http://www.xilinx.com/products/spartan3/s3boards.htm > > is the $99 S3 starter kit (orderable over the web). > > Austin > > PS: for anyone playing around with ancient FPGAs, give yourself a > break, and just order the latest technology to play with.Article: 70804
I know there has been some interst here, so I thought I'd mention that there's an evaluation version of the Nios II processor now available from Altera's website. Check it out at: https://www.altera.com/support/software/download/sof-download_center.html --AlanArticle: 70805
Peter Alfke wrote: > > > From: Thomas Womack <twomack@chiark.greenend.org.uk> > > Organization: Linux Unlimited > > Newsgroups: comp.arch.fpga > > Date: 28 Jun 2004 20:03:20 +0100 (BST) > > Subject: Battle of the Vapours > > > > > What _is_ the business about "maximum toggle frequency 500MHz (for > > export control)" in the Spartan3 datasheet? > > > There are restrictions on exporting (from the US) devices above a certain > level of sophistication. And the government measures that as toggle rate. > (The idea was to avoid helping the "evil empire" develop better missile > guidance systems). > The Cold War lives forever... So are products containing Spartan 3 parts at 500 MHz toggle freq restricted? I have looked at several government web sites and not been able to determine what is restricted and what is not. -- Rick "rickman" Collins rick.collins@XYarius.com Ignore the reply address. To email me use the above address with the XY removed. Arius - A Signal Processing Solutions Company Specializing in DSP and FPGA design URL http://www.arius.com 4 King Ave 301-682-7772 Voice Frederick, MD 21701-3110 301-682-7666 FAXArticle: 70806
Thomas Womack wrote: > > In article <BD05CC88.7201%peter@xilinx.com>, > Peter Alfke <peter@xilinx.com> wrote: > > > > > >> From: Thomas Womack <twomack@chiark.greenend.org.uk> > >> Organization: Linux Unlimited > >> Newsgroups: comp.arch.fpga > >> Date: 28 Jun 2004 20:03:20 +0100 (BST) > >> Subject: Battle of the Vapours > >> > >> > What _is_ the business about "maximum toggle frequency 500MHz (for > >> export control)" in the Spartan3 datasheet? > > >There are restrictions on exporting (from the US) devices above a certain > >level of sophistication. And the government measures that as toggle rate. > >(The idea was to avoid helping the "evil empire" develop better missile > >guidance systems). > > OK, I suppose that makes a certain degree of sense; I wonder slightly > how the big microprocessor vendors get round that issue. There were > those Apple adverts saying that their machine was by export-control > standards a supercomputer, but I've seen plenty of dual-G5 boxes on > my side of the Atlantic. The restrictions can be very strange. I was involved in a converstion about GSM cell phone manufacturing and repair once. Seems the encryption in the GSM phones was "export controlled" by the US. So the phones could be made outside the US and shipped in. But they could not be shipped back out for repair. -- Rick "rickman" Collins rick.collins@XYarius.com Ignore the reply address. To email me use the above address with the XY removed. Arius - A Signal Processing Solutions Company Specializing in DSP and FPGA design URL http://www.arius.com 4 King Ave 301-682-7772 Voice Frederick, MD 21701-3110 301-682-7666 FAXArticle: 70807
Austin Lesea wrote: > http://www.xilinx.com/products/spartan3/s3boards.htm > > is the $99 S3 starter kit (orderable over the web). > > Austin > > PS: for anyone playing around with ancient FPGAs, give yourself a > break, and just order the latest technology to play with. Nice system. Can you refresh us, as it's not clear on the link above. IIRC, PicoBlaze is free [Xilinx hosted understood :)], and MicroBlaze is $$ - correct ? -jgArticle: 70808
"brian hubeau" <bhb22l@yahoo.fr> wrote in message news:<cbc0iv$aie$1@s1.read.news.oleane.net>... > Hello All ! > > I would like to know, if anybody has already made experiances with > communication between XILINX (Virtex) and MII (Medium Independent > Interface ) ?? > Does already exist a free VHDL CORE for this interface ? > Where can I get it ? > > Thanks for all informations ! > > Brian. You can plop down a standard MAC part or you can use a MAC core inside the FPGA. Try opencores.com- they have an open source MAC core. It uses a wishbone interface to the FPGA.Article: 70809
Peter Alfke wrote: > >>From: Thomas Womack <twomack@chiark.greenend.org.uk> >>>What _is_ the business about "maximum toggle frequency 500MHz (for >>export control)" in the Spartan3 datasheet? >> > > There are restrictions on exporting (from the US) devices above a certain > level of sophistication. And the government measures that as toggle rate. > (The idea was to avoid helping the "evil empire" develop better missile > guidance systems). > The Cold War lives forever... > Peter Alfke The politicians, of course, have no idea what any of this means. I can picture them looking at the specs...: Toggle rates of 500MHz, yes, that's fast..... 3.3GBps - hmm, no 3.3 is less than 500, so that's OK 10Gbps - still OK, 10 is < 500 2.4 terabit - whoa, someone could build a tera-network using that!! :)Article: 70810
Thanks for the help. I've decided to go for Spartan II now. saw the price difference between Spartan and Spartan II. "John_H" <johnhandwork@mail.com> wrote in message news:<ugYBc.13$I25.1709@news-west.eli.net>... > 74HCT series logic, for instance, is CMOS yet fully compatible with the 3.3V > interface as long as the series resistors are used on the inputs (or I/Os). > The 74HCT input levels are specified for TTL levels. The big question is > what are the logic level requirements that you're interfacing with?Article: 70811
Hello, I get the same error as described by Record Number: 18857. I run ModelSim 5.5F SE and ISE 6. Both tools are 2002 and later versions hence must be VITAL compliant. I keep my fingers crossed for the solution. Tnx, Johnny 6.1i COMPXLIB - "ERROR: Could not open library vital2000 at vital2000: No such file or directory" General Description: Using COMPXLIB to compile simulation libraries from the command line results in an error similar to the following: "ERROR: Could not open library vital2000 at vital2000: No such file or directory ###### C:\Xilinx\vhdl\src\simprims\simprim_Vcomponents_mti.vhd(74): library VITAL2000; ERROR: C:\Xilinx\vhdl\src\simprims\simprim_Vcomponents_mti.vhd(74): Library vital2000 not found. ###### C:\Xilinx\vhdl\src\simprims\simprim_Vcomponents_mti.vhd(75): use VITAL2000.VITAL_TimingArticle: 70812
lenz wrote: > Hi, > > I will finish the University within the next months. Now I am looking > for companies in Germany in the field of FPGA. > > I have found some companies specialized in FPGA design and consulting > - El Camino > - Polar Design > - Array Electronics Go to the http://www.xilinx.com/partners/index.htm and look under Design Services. Altera has probably something similar. > > Are there any other FPGA design/consulting companys in Germany ? > Which companys employ FPGAs in their products and therefore could > be a potential employer for me ? > > Thank you very much. It kind of depends on what you want to do. You can go to Siemens and be in a department where they put FPGAs in their systems, but end up not doing anything that goes inside the FPGA. So if you like to do the logic design, rather look for design/consulting type companies, chances are, they do the logic that Siemens puts in their systems. You should also get an idea what type of logic design you would like to do. There are companies that specialize in implementing DSP algorithms in FPGAs, others do more telecommunications stuff, etc. Good luck on you job search. GuenterArticle: 70813
>Going off- and on-chip again gives also some delay that no optimizer will >optimize away, at the expense of two pins... Suppose I go off and back on using a single pin. How much software is "smart" enough to optimize that out? -- The suespammers.org mail server is located in California. So are all my other mailboxes. Please do not send unsolicited bulk e-mail or unsolicited commercial e-mail to my suespammers.org address or any of my other addresses. These are my opinions, not necessarily my employer's. I hate spam.Article: 70814
>My user logic module clears the IRQ whenever I read a register. Normally >this is done in the ISR. Eventually the IRQ does not clear because the >ISR is not called. (This does not seem to be the case of the ISR getting >called, but not clearing the IRQ for some reason). I tried adding a read >of the same clearing register in my main loop every 100ms. This 'kick >starts' the Nios when it is ignoring IRQs, but probably at a cost of a >lost IRQ - it works, but is not acceptable. I don't know anything about Nios. You might try talking to software geeks. There is a classic interrupt bug where the IRS turns off the interrupt but forgets to make one last check to see if an interrupt came in just before it turned it off. You should be able to debug this with a little work. Do you have a LED on your IRQ signal? Is it on or off? If it's on, then the software is not processing it. If it's off... Keep dividing the search. Bugs that happen often/easily are easy to fix. The hard ones are the ones that only happen when you aren't looking or once per week or month. -- The suespammers.org mail server is located in California. So are all my other mailboxes. Please do not send unsolicited bulk e-mail or unsolicited commercial e-mail to my suespammers.org address or any of my other addresses. These are my opinions, not necessarily my employer's. I hate spam.Article: 70815
Hi, As part of a project my partner and I are required to use the APEX board and the NIOS Ethernet Development Kit for internet communication. We need an indepth understanding of the software code needed to program the ethernet board, e.g. initiallizing, sending, etc. however the manual and online resources don't have alot of information. Is there anyone who has used the ethernet adapter board and has managed to make an application using it? because i'm having difficulty intialising the plug and using the structures avaible (from the manual) to get simple application going.. your help is most most appreciated!! :)) CheersArticle: 70816
Hi all, where did the Service Packs for EDK 3.1 and EDK 3.2 on the Xilinx website go? I know they exist, but they are nowhere to be found... They are mentioned in several answer records, but the download links lead nowhere... Am I blind or missing something? There are still service packs for old ISE-releases, but none for older EDKs... I'm in the middle of a project and don't want to switch to EDK6.2 just yet... cu, SeanArticle: 70817
Eric Crabill <eric.crabill@xilinx.com> writes: > No. You can use Virtex-II Pro for PCI Express, and we do! This was my impression until I was confused by the discovery of the GT10_PCI_EXPRESS_n primitive. Thank you for the clarification. Petter -- A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing on usenet and in e-mail?Article: 70818
Sean Durkin wrote: > Hi all, > > where did the Service Packs for EDK 3.1 and EDK 3.2 on the Xilinx > website go? I know they exist, but they are nowhere to be found... OK, got it... the files are still there, but there are no more links on the website... In case someone else needs them, here are the links: Service Pack 1: http://support.xilinx.com/ise/embedded/EDK/edk_3_2_1_win.exe Service Pack 2: http://support.xilinx.com/ise/embedded/EDK/edk_3_2_2_win.exe cu, SeanArticle: 70819
Guenter Dannoritzer <dannoritzer@web.de> wrote in message news:<cbqtra$8ci$00$1@news.t-online.com>... > lenz wrote: > > > Hi, > > > > I will finish the University within the next months. Now I am looking > > for companies in Germany in the field of FPGA. > > > > I have found some companies specialized in FPGA design and consulting > > - El Camino > > - Polar Design > > - Array Electronics > > Go to the http://www.xilinx.com/partners/index.htm and look under Design > Services. Altera has probably something similar. > > > > > Are there any other FPGA design/consulting companys in Germany ? > > Which companys employ FPGAs in their products and therefore could > > be a potential employer for me ? > > > > Thank you very much. > > It kind of depends on what you want to do. You can go to Siemens and be > in a department where they put FPGAs in their systems, but end up not > doing anything that goes inside the FPGA. So if you like to do the logic > design, rather look for design/consulting type companies, chances are, > they do the logic that Siemens puts in their systems. > > You should also get an idea what type of logic design you would like to > do. There are companies that specialize in implementing DSP algorithms > in FPGAs, others do more telecommunications stuff, etc. > > Good luck on you job search. > > Guenter Take a look at this list and other lists at the bottom and look for gmbh companies that suppy boards, might be of help, if no gmbh, look for euro sign as a clue. amo, cesys, seng, trenz, I thought there were more http://www.fpga-faq.com/FPGA_Boards.shtml regards johnjakson_usa-comArticle: 70820
Symon, Do not know. I'll find out. Austin Symon wrote: > Austin, > What sort of JTAG download cable is included in that kit? I don't recognise > it. > Ta, Syms. > > "Austin Lesea" <austin@xilinx.com> wrote in message > news:cbq4cp$2kr4@cliff.xsj.xilinx.com... > >>http://www.xilinx.com/products/spartan3/s3boards.htm >> >>is the $99 S3 starter kit (orderable over the web). >> >>Austin >> >>PS: for anyone playing around with ancient FPGAs, give yourself a >>break, and just order the latest technology to play with. > > >Article: 70821
Jim, Right you are. Austin Jim Granville wrote: > Austin Lesea wrote: > >> http://www.xilinx.com/products/spartan3/s3boards.htm >> >> is the $99 S3 starter kit (orderable over the web). >> >> Austin >> >> PS: for anyone playing around with ancient FPGAs, give yourself a >> break, and just order the latest technology to play with. > > > Nice system. > Can you refresh us, as it's not clear on the link above. > IIRC, PicoBlaze is free [Xilinx hosted understood :)], > and MicroBlaze is $$ - correct ? > -jg >Article: 70822
Jim, You are absolutely correct: we must prevent tera. There is a war on tera, right now! Austin PS: I've herad of 'two bit' networks, but tera-bit networks??? Jim Granville wrote: > Peter Alfke wrote: > >> >>> From: Thomas Womack <twomack@chiark.greenend.org.uk> >>> >>>> What _is_ the business about "maximum toggle frequency 500MHz (for >>> >>> export control)" in the Spartan3 datasheet? >>> >> >> There are restrictions on exporting (from the US) devices above a certain >> level of sophistication. And the government measures that as toggle rate. >> (The idea was to avoid helping the "evil empire" develop better missile >> guidance systems). >> The Cold War lives forever... >> Peter Alfke > > > The politicians, of course, have no idea what any of this means. > I can picture them looking at the specs...: > Toggle rates of 500MHz, yes, that's fast..... > 3.3GBps - hmm, no 3.3 is less than 500, so that's OK > 10Gbps - still OK, 10 is < 500 > 2.4 terabit - whoa, someone could build a tera-network using that!! > :) >Article: 70823
"Symon" <symon_brewer@hotmail.com> wrote in message news:2kbs45Fg2klU1@uni-berlin.de... > What sort of JTAG download cable is included in that kit? I don't recognise > it. The JTAG programming cable supplied with the kit is a Digilent JTAG3 cable. In connects between the parallel port on a PC and the JTAG connector on the board. It is directly compatible with the Xilinx iMPACT software. Digilent JTAG3 JTAG Cable https://digilent.us/Sales/Product.cfm?Prod=JTAG3 --------------------------------- Steven K. Knapp Applications Manager, Xilinx Inc. General Products Division Spartan-3/II/IIE FPGAs http://www.xilinx.com/spartan3 --------------------------------- Spartan-3: Make it Your ASICArticle: 70824
"Jim Granville" <no.spam@designtools.co.nz> wrote in message news:yj3Ec.5300$NA1.488617@news02.tsnz.net... [ snip ] > Nice system. > Can you refresh us, as it's not clear on the link above. > IIRC, PicoBlaze is free [Xilinx hosted understood :)], > and MicroBlaze is $$ - correct ? > -jg Correct. The PicoBlaze 8-bit embedded controller core is available at no-charge. The newest version for Spartan-3, Virtex-II, and Virtex-II Pro includes a few new instructions and a 64-byte scratchpad RAM. The core and user guide are available via the following link. Unfortunately, the Xilinx site asks you to register before you can download the PicoBlaze VHDL source. Xilinx PicoBlaze 8-bit Embedded Controller http://www.xilinx.com/picoblaze The 32-bit MicroBlaze RISC core is part of the Xilinx Embedded Development Kit (EDK), which includes other development software and IP cores. --------------------------------- Steven K. Knapp Applications Manager, Xilinx Inc. General Products Division Spartan-3/II/IIE FPGAs http://www.xilinx.com/spartan3 --------------------------------- Spartan-3: Make it Your ASIC
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