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pbdelete@spamnuke.ludd.luthdelete.se.invalid schrieb: > Is there any lowpriced board with _just_ a FPGA + ethernet 100 Mbps interface? Look at www.devboards.de, there are two boards available DBC1C12 and DBC2C20. Regards, damcArticle: 100801
i m trying to implement blowfish encyption algorithm on spartan 3 board. so can any one tell me where i can find some help for coding for it.Article: 100802
The big URL doesn't work here at work but the tinyurl appears to work fine. "John_H" <johnhandwork@mail.com> wrote in message news:QG51g.1$sh.0@trnddc07... > Carsten wrote: >> On Mon, 17 Apr 2006 20:44:20 GMT, "John_H" <johnhandwork@mail.com> >> wrote: >> >> >>>It may be $178 from European distribution; the www.em.avnet.com site >>>shows $149. I may have a cookie set that says I'm a US locale. My S3E >>>kits (ordered a while ago) had a few dollars shipping - not much >>>considering the "usual" charges. >> >> >> If you "Hit Order" , it will list $178 for qty = 1 , and $149 for qty >= >> 100 > > Try: > > https://www.em.avnet.com/pns/home/0,5533,CID%253D0%2526CCD%253DUSA%2526SID%253D0%2526DID%253DDF2%2526LID%253D0%2526BID%253DDF2%2526CTP%253DPNS,00.html?ref=https://emwcs.avnet.com/webapp/wcs/stores/RedirectWCSLogon?langId=-1&storeId=500201&catalogId=500201&reLogon=https://www.em.avnet.com/auth/framelogin/&URL=RemoteAdvancedSearchView%3FlangId%3D%2D1%26storeId%3D500201%26catalogId%3D500201%26manufacturerPartNum%3DHW-SPAR3E-SK-US > > or (the same thing) > > http://tinyurl.com/qrr2gArticle: 100803
The Spartan3Es are back to the pre-Spartan3 weak pullups. The values are superbly easy to find in the DC and Switching Characteristics data sheet. "Jeff Brower" <jbrower@signalogic.com> wrote in message news:1145371209.200193.248270@z34g2000cwc.googlegroups.com... > Steve- > > Thanks very much for the detailed explanation. I did not realize S3 > has that much variation in pull-up/pull-down values, and the min values > could be under 2k. That does explain some of the things we've seen. > We had got this idea in our heads of "weak pull-ups" from our Spartan > II boards... > > I wish S3 Rs were a uniform 10k or so, but it sounds like it's not easy > as the process continues to shrink. Is this what we can expect on > newer devices also? It seems if we used a lot of internal FPGA > pull-ups/downs instead of external ones we could significantly increase > power consumption and heat of the device. > > -Jeff >Article: 100804
chinmayshah.edi@googlemail.com wrote: > i m trying to implement blowfish encyption algorithm on spartan 3 > board. so can any one tell me where i can find some help for coding > for it. Have you tried a google search yet? I googled "blowfish FPGA" and got 15K hits.Article: 100805
radarman wrote: > Believe me, I'm working with an old design at work right now that uses > 3 Xilinx 4010E's and a UV eraseable PROM. I had forgotten what a > serious PITA it is to have to wait 30 minutes to reprogram a device. > (fortunately, we have spares, so I just cycle them through the eraser > when we identify a change) > > Then, there was the fun of trying to get a copy of ISE 4.2i - which > wasn't easy even at a fortune 500 company that used it several years > ago. I can't imagine trying to dig up the CD and a registration code as > a hobbyist. This is an ideal opportunity for open source synthesizers. There are lots of businesses that have legacy systems >5 years old that they must support. (Heck, I encounter it myself in day job.) In many cases, not only can you not find the tool chains you need, you also can't get the right version of Windows (these tools are bloody picky about Window/DOS versions) to run on a machine that one can actually buy:-/ - -- Steve Williams "The woods are lovely, dark and deep. steve at icarus.com But I have promises to keep, http://www.icarus.com and lines to code before I sleep, http://www.picturel.com And lines to code before I sleep."Article: 100806
Mike- Thanks Mike. > Whatever XST is doing, I expect that it would match modelsim. The code above never makes equality, but I don't know how to fix it. Would you know what this means: Q13. An unconstrained integer results in bad quality. A13. This is a known limitation in XST. Support for this is planned for ISE 9.1i. This is on page: http://www.xilinx.com/xlnx/xil_ans_display.jsp?BV_UseBVCookie=yes&getPagePath=21682&iLanguageID=1 but I can't find any other Xilinx reference to it. -JeffArticle: 100807
I read the thread on xilinx online shop issues. So how are the other options? (Altera, Lattice, Actel) - Priceing on small samples / evaluation boards ..? - Software is smooth and/or pricey..? - Have online shop, or _good_ distributors ..? (I live in Europe) - Reliability (silicon & customer relations) ..? - Any new fpga manufactor to enter this market soon ..?Article: 100808
it seem that we are all ok.. this is a problem for us ! so what can we do ? Philippz "Mike Harrison" <mike@whitewing.co.uk> a écrit dans le message de news: omc942dabfdppfhsru93afs5e0ecdi6aqu@4ax.com... > On Tue, 18 Apr 2006 08:58:53 +0000 (UTC), Uwe Bonnes > <bon@hertz.ikp.physik.tu-darmstadt.de> wrote: > >>Labo.EKO <labo.eko***nospam***@free.fr> wrote: >> >> >>> hi everybody, >> >>> maybe we can do a petition about this xilinx store ?... >>> i'm French user and i can affirm that Avnet France, preferer (to not >>> says >>> want ) only big customers .. >>> they are slow and expensive.. totaly incompatible with prototype phase. >> >>> Maybe Xilinx prefer that we try Lattice or others parts ?... >> >>> i'm realy not happy against that problem. they can be take example from >>> Microchip & sample service ... >> >>> ( sorry for my bad english ! ) >> >>I also plea for Xilinx keeping/reinstatiating the Online Shop. Dealing >>with >>distributors for prototyping is not an easy task... > > Agreed - the problem is that distis are always chasing after sales, but > prototyping is done by tech > people who usually can't answer questions about quantities, production > schedules etc. > This is why it's much better for this end of the market to be served by > the manufacturer.Article: 100809
In the RIO UG, two particular crystal oscillators parts are not just recommended but in effect mandated have to be used. I've used the Pletronics part successfully but it's expensive. There are lots of other manufacturers who make LVDS oscillators at the correct frequency and frequency stability. Has anyone successfully used any other oscillator? Are the requirements for the BREFCLK oscillator actually written down anywhere to allow comparison? TIA, Rog.Article: 100810
OK, so I finally figured out that you use PACE to assign I/O's of the Aurora design to the pins on the board. But, when I cant seem to try to assign the TX signals (TX_N or TX_P) to one of the MGT pins. (It color code is Brown and the legend says Gigabit serial) XAP661 uses the PowerPC w/ an RS232 to control the test. Is it possible to just do some simple modifications and use that for testing? I guess I'll probably hold on to my other questions about testing until I get the basic design running. Thx, BalaArticle: 100811
Eric Smith wrote: >Since Digikey is already a Xilinx distributor, and since they already do >a great job of dealing with small orders, this would seem to be a much >more logical arrangement than having Avnet do it. > >Anyhow, Digikey seems to to at as good or better a job as Avnet at >stocking Xilinx parts. If you click on the parts listed in the Xilinx >"store" and wind up on the Avnet page, almost everything is listed as >"out of stock", and a lot of valid device/package combinations simply >aren't listed at all. > > My results are that they no longer stock a variety of parts I still use (all 5 V). They still list them in the catalog, but you have to order many pieces of many of them (last time I looked). For instance, the XCS30-4TQ144C is now listed as min order 60 pcs, $49.05 ea, for a total of $2943, which is a VERY big order for my business. > > I get these parts in 25 pc quantity from an Australian distributor for $15 each. JonArticle: 100812
"Florian" <googlegroups@47110815.com> wrote in message news:1145347142.975586.77100@i39g2000cwa.googlegroups.com... > Hi Mikhail, > > you have 2 ways: Hi Florian, Thanks a lot for pointing out these 2 methods. With regards to the second method, will EDK pick up the cores from the local pcores directory instead of its main repository automatically or will I have to import them as custom peripherals after the change? Also, could you please comment on the software side of the things? Just how much of the support is there and how much needs to be written/modified? Thanks, /MikhailArticle: 100813
How fixed are you on the FTDI part? If the Cypress part will suffice, I'd recommend evaluating the Opal-Kelly boards. http://www.opalkelly.com/products/ The boards come with either an XC3S400, XC3S1000, or XC3S1500. They also have some excellent software that goes with it called FrontPanel that essentially turns the USB interface into a host of virtual I/O functions. Thger are even API hooks for C++ and Phyton. http://www.opalkelly.com/products/frontpanel/ --------------------------------- Steven K. Knapp Applications Manager, Xilinx Inc. General Products Division Spartan-3/-3E FPGAs http://www.xilinx.com/spartan3e --------------------------------- The Spartan(tm)-3 Generation: The World's Lowest-Cost FPGAs.Article: 100814
I buy small quantities of Actel parts for prototyping from the same folks who will eventually do the production programming. BTW, many of the production runs are only 50 per year. -- Greg <pbdelete@spamnuke.ludd.luthdelete.se.invalid> wrote in message news:44451cae$0$490$cc7c7865@news.luth.se... >I read the thread on xilinx online shop issues. > > So how are the other options? > (Altera, Lattice, Actel) > > - Priceing on small samples / evaluation boards ..? > > - Software is smooth and/or pricey..? > > - Have online shop, or _good_ distributors ..? (I live in Europe) > > - Reliability (silicon & customer relations) ..? > > - Any new fpga manufactor to enter this market soon ..? >Article: 100815
Not sure how big of an FPGA you want, but here's a link to the Avnet Spartan-3 Mini-Module. It has an XC3S400 Spartan-3 FPGA and http://www.em.avnet.com/evk/home/0,1719,RID%253D0%2526CID%253D25724%2526CCD%253DUSA%2526SID%253D4742%2526DID%253DDF2%2526SRT%253D1%2526LID%253D18806%2526PVW%253D%2526BID%253DDF2%2526CTP%253DEVK,00.html or http://tinyurl.com/ptc86 Product Brief http://www.em.avnet.com/ctf_shared/evk/df2df2usa/Xilinx_Spartan-3_Mini-Module-Product_Brief.pdf There is also a similar module with a Virtex-4 FX12 FPGA. http://www.em.avnet.com/evk/home/0,1719,RID%253D0%2526CID%253D25726%2526CCD%253DUSA%2526SID%253D4742%2526DID%253DDF2%2526SRT%253D1%2526LID%253D18806%2526PVW%253D%2526BID%253DDF2%2526CTP%253DEVK,00.html or http://tinyurl.com/8eps2 --------------------------------- Steven K. Knapp Applications Manager, Xilinx Inc. General Products Division Spartan-3/-3E FPGAs http://www.xilinx.com/spartan3e --------------------------------- The Spartan(tm)-3 Generation: The World's Lowest-Cost FPGAs.Article: 100816
The Spartan-3 resistor values turned out a bit stronger than originally expected during design. The Spartan-3E resistors values are weaker, but still strong enough to be useful. Early FPGA families has resistors up around 20K to 50K, too weak to be useful. --------------------------------- Steven K. Knapp Applications Manager, Xilinx Inc. General Products Division Spartan-3/-3E FPGAs http://www.xilinx.com/spartan3e --------------------------------- The Spartan(tm)-3 Generation: The World's Lowest-Cost FPGAs.Article: 100817
For a legacy project I have MaxPlus2 with the Byteblaster MV. For a reason unknown to me, the Programmer modal tells me that the programmer is not there. "Can't find programming hardware" I checked the JTAG pins and their voltage levels. It should be correct. What else is checked ? The device connected : EPM3128AT144-10 Rene -- Ing.Buero R.Tschaggelar - http://www.ibrtses.com & commercial newsgroups - http://www.talkto.netArticle: 100818
pbdelete@spamnuke.ludd.luthdelete.se.invalid wrote: > I read the thread on xilinx online shop issues. > > So how are the other options? > (Altera, Lattice, Actel) > > - Priceing on small samples / evaluation boards ..? > > - Software is smooth and/or pricey..? > > - Have online shop, or _good_ distributors ..? (I live in Europe) > > - Reliability (silicon & customer relations) ..? > > - Any new fpga manufactor to enter this market soon ..? The Altera parts a distributed by ebv, amongst others. The EBV support is absolutely great. The minimum invoice is 150 Fr. This may pose a problem when the parts are cheap, and for prototypes. http://www.ebv.com The free downloadable software from altera, quartus, is useable. Rene -- Ing.Buero R.Tschaggelar - http://www.ibrtses.com & commercial newsgroups - http://www.talkto.netArticle: 100819
Rene Tschaggelar wrote:
> I checked the JTAG pins and their voltage levels.
> It should be correct. What else is checked ?
The byteblaster cable to the PC serial or parallel port
and in some cases a software guard dongle on
the parallel port.
-- Mike Treseler
Article: 100820> You're about to waste your money, IMNSHO. Especially if you don't already > have a universal programmer that can handle them. Point taken. I wont invest in them ... especially after reading through my universal programmer and NOT seeing them listed. > If they're free, they're too expensive. Ok > You can buy a brand-shiny-new Xilinx XC9536 in a PLCC for $3.30, I avoid CPLD's. seriously. I think they are OVERKILL for the stuff I do and put me wayyyyy above the details I like to fool around with when I am designing boards I also hate messing with anything that I can NOT get in DIP form since I build the boards at home. Maybe as my exposure and experience designing and building boards at home improves ... I may get to that point. But for now I love simple PLD's ... 16R8' 22v10's for replacing 74xx parts. Nothing more.Article: 100821
Hi Everyone, I am wondering if it would be possible to drive a 800 MHz 10 bit parellel A/D using an FPGA which has a 100MHz system clock. Thanks, SankaArticle: 100822
In connection with "Create Timing Constraints" the error ERROR:Xst:827 occurs. We have the following fragment in our program: --------------------------------- process (ARMFPGA1, FRAME_VALID, ARMFPGA3) begin if (ARMFPGA1='1' and ARMFPGA1'event) then -- state=1 when rising_edge(ARMFPGA1) state <= '1'; end if; if (FRAME_VALID='0') then state <= '0'; end if; if (ARMFPGA3='1' and ARMFPGA3'event) then state <= '0'; end if; end process; --------------------------------- The intention is to: * set state=1 when rising_edge(ARMFPGA1) * set state=0 when (falling_edge(FRAME_VALID) or rising_edge(ARMFPGA3)) But according to: <http://www.xilinx.com/xlnx/xil_ans_display.jsp?iLanguageID=1&getPagePath=14047&BV_SessionID=@@@@1762176986.1145398809@@@@&BV_EngineID=cccgaddhighjkihcefeceihdffhdfjf.0> you can only have one ’event in a process. Is it then impossible to realize the following wish: ??? * set state=1 when rising_edge(ARMFPGA1) * set state=0 when (falling_edge(FRAME_VALID) or rising_edge(ARMFPGA3))Article: 100823
Probably. Budget also works into the decision. Do you have your FPGA family or specific device already targeted? Please consider driving your ADC clock from a clean source that doesn't include the FPGA in the path; crosstalk from other I/O "near" a clock generated by the FPGA will add jitter to your high speed clock that could be detrimental to a very high performance system. "Sanka Piyaratna" <jayasanka.piyaratna@gmail.com> wrote in message news:124ar68ie11gvcb@corp.supernews.com... > Hi Everyone, > > I am wondering if it would be possible to drive a 800 MHz 10 bit parellel > A/D using an FPGA which has a 100MHz system clock. > > Thanks, > > SankaArticle: 100824
Hello all, I am in lookout for a Viterbi IP Core for my project aimed for programming in Xilinx Virtex II Pro device. The major requirement is the support of parallel inputs to the core. Considering the frequency limitation of the FPGA, the number of inputs are made parallel for high data rate applications and hence the Viterbi Core should be capable of accepting parallel input data (atleast 8 parallel inputs) and decode. The latency involved is not a problem and I expect the Viterbi Core to run at atleast 125 Mhz. Any information on vendor who sells this core will be of great help to me. The closest I could find was the Xilinx Viterbi Core which looks like can accept 7 Parallel Inputs (But for some reason, while customising the core in Core Generator Wizard, it highlights only 2 of the 7 parallel inputs). Any thoughts on this also will be sincerely appreciated. Looking forward to your feedback. Thanks, Venkat.
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