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I found the Synplicity tools to be quite good. The HDL Analyst was a god-send for some timing critical logic that I was creating for Xilinx FPGAs. It allowed me to see exactly how the code mapped into logic blocks and flip-flops. It's fairly easy and intuitive to use and supports both VHDL and Verilog. They also ship some example file for each vendor type that show you how to do the "strange things". For example, they show you how to build a RAM array and give the RAM an initial value in Xilinx XC4000 when using Verilog and how to assign pin locations. Synplicity has a free evaluation download at http://www.synplicity.com/downloads.html. That's how we got started. ----------------------------------------------------------- Steven K. Knapp OptiMagic, Inc. -- "Great Designs Happen 'OptiMagic'-ally" E-mail: sknapp@optimagic.com Web: http://www.optimagic.com ----------------------------------------------------------- James E. Stine, Jr. wrote in message <3532468A.67F256E2@eecs.lehigh.edu>... >Hi, > >I am looking for tips, war stories, and successes from any of you out >there who has >used the Synplify/HDL Analyst Software from Synplicity, Inc. Thanks, in >advance. > >james stine >lehigh university >jes6@lehigh.edu >Article: 9926
Is there no way of using a makefile for building stuff. The Unix versions are command line driven and you can call the exe's directly. Eg NGDBUILD etc. I'm sure Xilinx must have a set of makefiles/batch files to do this. ------------- Gareth Baron Rick Filipkewicz wrote: > Nick Hartl wrote: > > > > Sure if it is in 93 and not in 87, then forget it. > > > > Yes, this is the word I got from Xilinx. Are they planning to replace > XVHDL with a compiler that's based on a 10+ year old VHDL spec ? > Fortunately I only really loaded the Express tools so I could start > playing around with Verilog. > > > > I have run into the same problem. I've been telling Synopsys that the > > > inability to run FPGA Express from the command line is a problem since > > > they brought out the first release of it. I understand that Synopsys > > > are going to fix this problem but I don't know the timescales. > > > > > So I'm not the only one who thinks GUIs are a WOT. On the Xilinx CD > there is a program called FE.EXE that is sort of batch-like but it can > only be used to rebuild a project/chip that's been created by the GUI! > I haven't yet got it to export an XNF netlist but I'm still trying. > > > > XVHDL is still included with the M1 tools, I've decided to continue > > > using it. If FPGA Express is still broken when they stop supporting > > > XVHDL then I'll move FPGA vendors. > > > > > > By the way, there is a new restriction in XVHDL that forces you to > > > put all bidirectional buffers at the top level if you are outputting > > > to EDIF, otherwise it puts in internal tristates. You can get around > > > this by outputting to XNF. > > > > > Lucky my design style does this anyway ... > > > > -- > > > Aedan Coffey, Eurologic Systems Ltd, Kilkenny, Ireland > > > Email: acoffey at eurologic dot com > > -- > > _________________________________________________________________________ > > Dr. Richard Filipkiewicz phone: +44 171 700 3301 > Algorithmics Ltd. fax: +44 171 700 3400 > 3 Drayton Park email: rick@algor.co.uk > London N5 1NU > EnglandArticle: 9927
If you are counting pulses over a period of time (as you would with 120MHz), you will have to be carefull about your reference clock. The osscillators specified PPM will affect the accuracy of your measurement. Be warned! The longer the sample time the more accurate the result. I don't have te equations to hand but it should be simple enough to calculate. I also don't know what accuracy you're looking for. -------------- Gareth Baron Peter wrote: > It all depends on how you how quickly you want to calculate it, and > how you want to represent the calculated value. > > Obviously, to calculate a "frequency" for a 40 pulse/second signal, > you need to wait at least 1/40 of a second. > > At 120MHz, you can probably just count pulses for a certain time. > > Somewhere between the two extremes, you may want to switch over from > one method to another. > > But all this is obvious, so I must be missing something. > > >I have five asynchronous pulse streams arriving at my logic device. > >Right now they range from 40 Hz to 120 MHz, but that range is pretty > >flexible. I would like to calculate the frequency of each stream. > > > >120 MHz is pushing the limits of the brute-force method (implement > >counters clocked by the pulse stream, periodically compare them to a > >real-time clock). Does anybody know of a more elegant solution? Thank > >you for any ideas. > > Peter. > > Return address is invalid to help stop junk mail. > E-mail replies to zX80@digiYserve.com but > remove the X and the Y.Article: 9928
I think that you will fing that M1.3 does have VHDL. It doesn't have Verilog HDL though. --------------- Gareth Baron Rob Ehlers wrote: > Hello, I am a student at Clemson University (South Carolina) and am > working on a project for a class. I have purchased the student edition > of Xilinx's foundation software, but it is currently only at v1.3, and > thus does _not_ include VHDL support. According to to Xilinx's > homepage, I can legally upgrade my student edition to v1.4, if I can > find someone who has the _Foundation Express version 1.4_ software. > > If anyone has this available, and would be willing to let me bring my > computer by to upgrade my system, please contact me. > > I know this seems like a strange request, but I'm really crunched for > time on this project, and having the ability to do the VHDL design at > home would help me out a great deal. > > Thank for any assistance. > > Rob Ehlers > rehlers@clemson.edu > 864-653-4097Article: 9929
In article <3532BA1F.76D20942@opentv.com>, Scott Bronson <nospam@opentv.com> wrote: > > One final question: if I wanted to measure the jitter present on one of > these signals (ranging from 60MHz - 120MHz), brute force would indicate > that I need to use a 20x clock to measure +/- 5% jitter. Are there any > inexpensive ($5 or so) parts I could purchase to make this possible? > (obviously, dividing the signal won't work) Watching a good PLL's > correction signal would be nice, but difficult to implement well... > > Thanks again for the very informative answers. > > - Scott (sbronson -a-t- opentv.com) > When you say you want to measure jitter, do you want to measure the worst case deviation? The average? If the average, over what interval? What resolution do you want at what frequency? Scott Taylor - DSP Fibre Channel Systems -----== Posted via Deja News, The Leader in Internet Discussion ==----- http://www.dejanews.com/ Now offering spam-free web-based newsreadingArticle: 9930
I use Synplify all the time. We are packing 45,000 gates into a Xilinx 4085XL. Synplify is very fast. It will synthesis your whole design. It maintains heirecy in the names. The RTL View and Technology View are great tools to let you see the logic you code generated. Synplify's timing estimates are off by a factor of 2 to 1. A tool worth the money! Bill Seiler Divx / Circuit City 3255-4 Scott Blvd, Suite 105 Santa Clara, CA 95054 408 982 5420 Direct 408 982 5430 FAX ccwest@ix.netcom.comArticle: 9931
Just to clarify, I do not at present write in VHDL. Altera have upgraded my software so I could if I wanted to, but so far AHDL has been adequate. For my applications, the advantage of VHDL would be the portability it could give. My question about Cypress Warp was hypothetical, I have not actually tried it. It is not my intention to start a VHDL vs AHDL vs schematics flame war. My basic question is that Exemplar, Synopsys, Symplicity & all the rest all make VHDL compliers. Aside from the issue of how much of the language has been implemented, what distinguishes them from each other. Do they actually do a better job of synthesising the VHDL than Altera's offering ? I speak as someone who wants to get a medium speed, medium density, very low volume design implemented quickly so I can move onto the next job. Yes I know that if I think long and hard about the design I can optimise the code, and careful tweaking of the fitter will result in the best performance, but I want the tools to do most or all of the work for me. -- Steve Dewey Steve@s-deweynospam.demon.co.uk Too boring to have an interesting or witty .sig file.Article: 9932
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Article: 9933staylor@dspsystems.com wrote: > > In article <3532BA1F.76D20942@opentv.com>, > Scott Bronson <nospam@opentv.com> wrote: > > > > One final question: if I wanted to measure the jitter present on one of > > these signals (ranging from 60MHz - 120MHz), brute force would indicate > > that I need to use a 20x clock to measure +/- 5% jitter. Are there any > > inexpensive ($5 or so) parts I could purchase to make this possible? > > (obviously, dividing the signal won't work) Watching a good PLL's > > correction signal would be nice, but difficult to implement well... > > When you say you want to measure jitter, do you want to measure the worst case > deviation? The average? If the average, over what interval? What resolution do > you want at what frequency? I would like to measure both, would like average, and would settle for worst case. Pick your interval (up to 10 sec or so). I would like as good a resolution over 60-120 MHz as possible while still being inexpensive and somewhat easy. If I had to pick a number, I would guess that up to 10% would be useful. But, unless you're going to design it for me, you shouldn't need to know most of those values...? I'm just looking for interesting jitter measurement techniques that I can learn from and maybe use. - ScottArticle: 9934
The Easiest way to make money !!!! It worked for me, and all those who are doing it ... and I'm sure it will work for you too ... DO YOU NEED MONEY??? Of course you do, we all do !!! Here's how to do so with little effort, and, yes IT'S LEGAL. A little while back, I was browsing these newsgroups, just like you are now, and came across an article similar to this that said you could make thousands of dollars within weeks with only an initial investment of $6.00! So I thought, "Yeah, right, this must be a scam!", but like most of us, I was curious. Like most of us, I kept reading. Anyway, it said that if you send $1.00 to each of the 6 names and addresses stated in the article, you could make thousands in a very short period of time. You then place your own name and address at the bottom of the list at #6, and post the article to at least 200 newsgroups.(There are about 22,000.) No catch, that was it. Even though the investment was a measly $6, I had three questions that needed to be answered before I could get involved in this sort of thing. 1. IS THIS REALLY LEGAL?? I called a lawyer first. The lawyer was a little skeptical that I would actually make any money but he said it WAS LEGAL if I wanted to try it. I told him it sounded a lot like a chain letter but the details of the system (SEE BELOW) actually made it a legitimate legal business. 2. Would the Post Office be ok with this....I called them: 1-800-725-2161 and they confirmed THIS IS ABSOLUTELY LEGAL! (See Title 18,h sections1302 NS 1341 of Postal Lottery Laws). This clarifies the program of collecting names and addresses for a mailing list. 3. Is this moral? Well, everyone who sends me a buck has a good chance of getting A LOT of money ... a much better chance than buying a lottery ticket!!! So, having these questions answered, I invested EXACTLY $7.92 ... six $1.00 bills and six 32 cent postage stamps ... and boy am I glad I did!!! Within 7 days, I started getting money in the mail! I was shocked! I still figured it would end soon, and didn't give it another thought. But the money just continued coming in. In my first week, I made about $20.00 to $30.00 dollars. By the end of the second week I had a mad total of $1,000.00. In the third week I had over $10,000.00 and it was still growing. This is now my fourth week and I have made a total of just over $42,000.00 and it's still coming in ..... It's certainly worth $6.00 and 6 stamps !!! So now I'm reposting this so I can make even more money! The *ONLY* thing stopping *ANYONE* from enriching their own bank account is pure laziness ! It took me all of 5 MINUTES to print this out, follow the directions, and begin posting to newsgroups. It took me a mere 45 minutes to post to over 200 newsgroups. And for this GRAND TOTAL investment of $7.92 (US) and under ONE HOUR of my time, I have reaped an incredible amount of money -- like nothing I've ever even heard of anywhere before ! Let me tell you how this works, and most importantly, why it works. Also, make sure you print a copy of this article now, so you can get the information off of it when you need it. The process is very simple and consists of THREE easy steps. ============ HOW IT WORKS ============ Mail the 6 envelopes to the following addresses: STEP 1: ------ Get 6 separate pieces of paper and write the following on each piece of paper: PLEASE ADD ME TO YOUR MAILING LIST. $1 US DOLLAR PROCESSING FEE IN ENCLOSED. (THIS IS KEY AS THIS IS WHAT MAKES IT LEGAL SINCE YOU ARE PAYING FOR AND LATER OFFERING A SERVICE). Now get 6 $1.00 bills and place ONE inside EACH of the 6 pieces of paper so the bill will not be seen through the envelope to prevent theft/robbery. Then, place one paper in each of the 6 envelopes and seal them. You should now have 6 sealed envelopes, each with a piece of paper stating the above phrase and a U.S. $1.00 bill. #1 Todd Edgeworth 31 Oxford Ave. Dudley,Ma. 01571 USA #2 Heath Hettig 23 Genesee ST. PO box 117 New Berlin, NY 13411 USA #3 José Pinto Rua dos Pinheiros Fonte Velha – Abuxarda 2750 Cascais Portugal #4 Pedro Cardoso Av. 25 de Abril, 16 1A 1675 Pontinha Portugal #5 Mark Morris Rt 5 Box 1849 palatka, FL.32177 USA #6 Dagfinn Eidsvaag Vestregt. 9 N-4300 SANDNES NORWAY STEP 2: Now take the #1 name off the list that you see above, move the other names up (6 becomes 5, 5 becomes 4, etc...) and add YOUR Name as number 6 on the list. (If you want to remain anonymous, put a nickname, but the address MUST be correct. It, of course, MUST contain your country, state/district/area, zip code, etc!!! You wouldn't want your money to fly away, would you?!?!). STEP 3: Now post your amended article to at least 200 newsgroups. Remember, 200 postings is just a guideline. The more you post, the more money you make! Don't know HOW to post in the news groups? Well do exactly the following: ----------------------------------------------------------------------- HOW TO POST TO NEWSGROUPS FAST WITH YOUR WEB BROWSER: The fastest way to post a newsletter: Highlight and COPY(Ctrl-C) the text of this posted message and PASTE(Ctrl-V) it into a plain text editor(as Wordpad) and save it. After you have made the necessary changes that are stated above, simply COPY(Ctrl-C) and PASTE(Ctrl-V) the text into the message composition window, after selecting a newsgroup, and post it! (Or you can attach the file, without writing anything to the message window.) ------------------------------------------------------------------------ If you have Netscape Navigator 3.0 do the following: 1. Click on any newsgroup like normal, then click on 'TO NEWS'. This will bring up a box to type a message in. 2. Leave the newsgroup box like it is, change the subject box to something flashy, something to catch the eye, as "$$$ NEED CASH $$$?!!", "READ HERE!$!$!$" or "$$$!!!MAKE FAST CASH, YOU CAN'T LOSE!!!$$$". Or you can use my subject title. 3. Now click on 'ATTACHMENTS'. Then click on 'ATTACH FILE'. Find your file on your Hard Disk(the one you saved from the text editor). Once you find it, click on it and then click 'OPEN' and 'OK'. You should now see your file name in the attachments box. 4. Now click on 'SEND'/'POST'. You see? Now you just have 199 to go!!!(Don't worry, it's easy and quick once you get used to it.) NOTE: All the versions of Netscape Navigator's are similar to each other, so you'll have no problem doing this if you don't have Netscape Navigator 3.0. ------------------------------------------------------------------------ (FOR A QUICK TIP)! Netscape Navigator 3.x and above) You can post this message to many newsgroups at a time, by simply selecting a newsgroup near the top of the screen, hold down the SHIFT, and then select a newsgroup near the bottom of the screen. All of the newsgroups in/between will be selected. After that, you follow/do the basic steps, stated below in this letter, except step #1. You can go to the page stated below in this letter and click on a newsgroup to open up the newsgroups window. Once you've done this, in the same window go to 'OPTIONS', and then mark 'SHOW ALL NEWSGROUPS' and 'SHOW ALL MESSAGES'. Now you can see all the newsgroups and you can apply easier the above tip. ------------------------------------------------------------------------ If you have MS Internet Explorer do the following: 1. Go to the newsgroups and press 'POST AN ARTICLE'. To the new window type your headline in the subject area and then click in the large window below. There either PASTE your letter(which it's been copied from the text editor), or attach the file which contains it. 2. Then click on 'SEND' or 'OK'. NOTE: All versions of MS Internet Explorer are similar to each other, so you won't have any problem doing this. GENERAL NOTES ON POSTING: A nice page where you'll find all the newsgroups if you want help is http://www.liszt.com/ (When you go to the home page, click on the link 'Newsgroup Directory'). But I don't think you'll have any problem posting because it's very easy once you've found the newsgroups. All these web browsers are similar. It doesn't matter which one you have. (But it makes it very easy if you have Netscape Navigator 3.0 or later. You may download it from the Internet if you don't have it.) You just have to remember the basic steps, stated below. BASIC STEPS FOR POSTING: 1. Find a newsgroup and you click on it. 2. You click on 'POST A NEW ARTICLE' or 'TO NEWS' or anything else similar to these. 3. You type your flashy headline in the subject box. 4. Now, either you attach the file containing your amended letter, or you PASTE the letter.(You have to COPY it from the text editor, of course, from before.) 5. Finally, you click on 'SEND' or 'POST' or 'OK', whatever is there. ------------------------------------------------------------------------ **REMEMBER, THE MORE NEWSGROUPS YOU POST IN, THE MORE MONEY YOU WILL MAKE!! BUT YOU HAVE TO POST A MINIMUM OF 200** That's it! You will begin receiving money from around the world within day's! You may eventually want to rent a P.O. Box due to the large amount of mail you receive. If you wish to stay anonymous, you can invent a name to use, as long as the postman will deliver it. **JUST MAKE SURE ALL THE ADDRESSES ARE CORRECT.** ================= Now the WHY part: ================= Out of 200 postings, say I receive only 5 replies (a very low example). So then I made $5.00 with my name at #6 on the letter. Now, each of the 5 persons who just sent me $1.00 make the MINIMUM 200 postings, each with my name at #5 and only 5 persons respond to each of the original 5, that is another $25.00 for me, now those 25 each make 200 MINIMUM posts with my name at #4 and only 5 replies each, I will bring in an additional $125.00! Now, those 125 persons turn around and post the MINIMUM 200 with my name at #3 and only receive 5 replies each, I will make an additional $626.00! OK, now here is the fun part, each of those 625 persons post a MINIMUM 200 letters with my name at #2 and they each only receive 5 replies, that just made me $3,125.00!!! Those 3,125 persons will all deliver this message to 200 newsgroups with my name at #1 and if still 5 persons per 200 newsgroups react I will receive $15,625,00! With a original investment of only $6.00! AMAZING! And as I said 5 responses is actually VERY LOW! Average is probable 20 to 30! So lets put those figures at just 15 responses per person. Here is what you will make: at #6 $15.00 at #5 $225.00 at #4 $3,375.00 at #3 $50,625.00 at #2 $759,375.00 at #1 $11,390,625.00 When your name is no longer on the list, you just take the latest posting in the newsgroups, and send out another $6.00 to names on the list, putting your name at number 6 again. And start posting again. The thing to remember is, do you realize that thousands of people all over the world are joining the internet and reading these articles everyday, JUST LIKE YOU are now!! So can you afford $6.00 and see if it really works?? I think so... People have said, "what if the plan is played out and no one sends you the money? So what! What are the chances of that happening when there are tons of new honest users and new honest people who are joining the internet and newsgroups everyday and are willing to give it a try? Estimates are at 20,000 to 50,000 new users, every day, with thousands of those joining the actual internet. Remember, play FAIRLY and HONESTLY and this will work. You just have to be honest. ** By the way, if you try to deceive people by posting the messages with your name in the list and not sending the money to the rest of the people already on the list, you will NOT get as much. Someone I talked to knew someone who did that and he only made about $150.00, and that's after seven or eight weeks! Then he sent the 6 $1.00 bills, people added him to their lists, and in 4-5 weeks he had over $10k. This is the fairest and most honest way I have ever seen to share the wealth of the world without costing anything but our time!!! You also may want to buy mailing and e-mail lists for future dollars. Make sure you print this article out RIGHT NOW! Also, try to keep a list of everyone that sends you money and always keep an eye on the newsgroups to make sure everyone is playing fairly. Remember, HONESTY IS THE BEST POLICY. You don't need to cheat the basic idea to make the money!! GOOD LUCK to all and please play fairly and reap the huge rewards from this, which is tons of extra CASH. Please remember to declare your extra income. Thanks once again... ===================================================================== LEGAL ? ? ? (Comments from Bob Novak who started this new version.) "People have asked me if this is really legal. Well, it is! You are using the Internet to advertise your business. What is that business? You are assembling a mailing list of people who are interested in home based computer and online business and methods of generating income at home. Remember, people send you a small fee to be added to your mailing list.It is legal. what will you do with your list of thousands of names? That's up to you." So, build your mailing list, keep good accounts, declare the income and pay your taxes. By doing this you prove your business intentions. Keep an eye on the newsgroups and when the cash has stopped coming (that means your name is no longer on the list), you just take the latest posting at the newsgroups, send another $6.00 to the names stated on the list, make your corrections (put your name at #6) and start posting again. ==================================================================== NOTES: *1. In some countries, the export of the country's exchange is illegal. But you can get the license to do this from the post office, explaining the above statements (that you have an online business, etc. You may have to pay an extra tax, but that's OK, the amount of the incoming money is HUGE! And as I said, a few countries have that restriction. *2. You may want to buy mailing and e-mail lists for future dollars. (Or Database or Spreadsheet software.) *3. If you're really not sure or still think this can't be for real, please print a copy of this article and pass it along to someone who really needs the money, and see what happens. *4. You will start getting responses within 1-2 weeks, it depends. -- _____________________________________________________________________ End of the The Message...Article: 9935
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I don't know what you mean in your request, but you can purchase the VHDL
foundation software from the following site inexpensivly:
http://www.associatedpro.com/aps
Rob Ehlers wrote:
> Hello, I am a student at Clemson University (South Carolina) and am
> working on a project for a class. I have purchased the student edition
> of Xilinx's foundation software, but it is currently only at v1.3, and
> thus does _not_ include VHDL support. According to to Xilinx's
> homepage, I can legally upgrade my student edition to v1.4, if I can
> find someone who has the _Foundation Express version 1.4_ software.
>
> If anyone has this available, and would be willing to let me bring my
> computer by to upgrade my system, please contact me.
>
> I know this seems like a strange request, but I'm really crunched for
> time on this project, and having the ability to do the VHDL design at
> home would help me out a great deal.
>
> Thank for any assistance.
>
> Rob Ehlers
> rehlers@clemson.edu
> 864-653-4097
--
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Richard Schwarz, President
Associated Professional Systems Inc. (APS)
email: richard@associatedpro.com
web site: http://www.associatedpro.com
Phone: 410-569-5897
Fax: 410-661-2760
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Article: 9936
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THere are on line VHDL synthesis tutorials as well as some FPGA support
tools and VHDL Synthesis and Simulator demo tools available from:
http://www.associatedpro.com/aps
--
__/ __/ __/ __/ __/ __/ __/ __/ __/ __/ __/ __/ __/
Richard Schwarz, President
Associated Professional Systems Inc. (APS)
email: richard@associatedpro.com
web site: http://www.associatedpro.com
Phone: 410-569-5897
Fax: 410-661-2760
__/ __/ __/ __/ __/ __/ __/ __/ __/ __/ __/ __/ __/
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Article: 9937In article <352edd17.64697690@news.netcomuk.co.uk>, z80@ds2.com (Peter) writes: > Every Ethernet card, I would think, has a user-settable address. The > alternative is for the manufacturer to pre-program every EEPROM prior > to soldering - much less likely. The problem is that I don't know of > any Ethernet card for which this software is freely available. The whole idea of having 48 bits for the address is so that you can allocate a unique number for each board. You really really don't want duplicates. Yes, the manufacturers do pre-program them. In the old days, they really were ROMs. Now, tiny flash are cheaper. I don't know if writing is enabled. It probably depends upon the board. Some of them store other stuff in the back half of the flash. [The early 3 megabit Ethernet at Xerox had an 8 bit ID. Things got pretty confused when 2 machines had the same ID.] -- These are my opinions, not necessarily my employers.Article: 9938
I used to program EPM 7128LC84 and EPM 7160LC84 with MAXPLUS II ver 5.0 I upgraded MAXPLUS II software to 7.1 version. 7128 & 7160 do not appear in max7000 devices. What is the problem ? Is it possible to program these chips with MAXPLUS II ver 7.1 ? Thanks. Vincent FRISTOT Labo LIS-INPG GRENOBLE FRANCEArticle: 9939
> Because they can start the motherboard and chipset design at the same time as > the CPU or soon after. That gives them a lead that others cannot match. And, > if they were forced to provide that early information, a few changes would > render outside designs invalid or non-functional. They would appologize but > point out that the data sheet did say preliminary, as do 10 year old 8086 > datasheet last time I looked. So? That would make the playing field even, and NOT be an anti-trust violation if everyone had the same information at the same time. That's the point. Other than that, it IS an anti-trust violation. > When anti-trust could be enforced is if Intel provided the information to some > outsiders but not others. Well, they do exactly what you say just above. Digital has not been able to get any information from Intel for about a year now...yet Intel provides it do many other manufacturers.... AND that is not the only anti-trust violation in their case. As I said, they did NOT start out making system boards, and that market was made by others, and Intel, who used to RELY on and provide information to, these other manufacturers, is now prohibiting them from competing in a market THEY made, and have been competing in for 14 years now. That is also anti-trust. AustinArticle: 9940
James E. Stine, Jr. wrote: > > Hi, > > I am looking for tips, war stories, and successes from any of you out > there who has > used the Synplify/HDL Analyst Software from Synplicity, Inc. Thanks, in > advance. Early versions of Synplify (such as 2.6) were difficult to get worth-while results with. Synplicity has come a long way with version 3. Synplify now provides quick, predictable mapping for my verilog designs. It still has some quirks - such as mapping to FF with both set and reset in a Xilinx 4000 (which can have either set or reset but not both). There is a patch for this which works poorly, as a result the Verilog must be re-written (customized) to avoid this situation. I also found implementing the boundary scan (for an Xc4000) cumbersome. Regards Tim. -- Strong words softly spoken. My opinions != Nortel's opinion.Article: 9941
> In article <34fc3a8b.3807785@news.jps.net>, David Decker <mushh@jps.net> > writes > >I would like to use a version control system to support multiple > >FPGA designers doing ViewLogic schematic capture to > >Xilinx in under Win95. PVCS and similar programs are designed > [snip] Isn't this the strongest argument for moving to [text based] HDLs? Then you have access to all the tried and tested tools s/w engineers have been using for years to control big designs :- GNU-Emacs + Language sensitive modes, RCS [Revision control], `make' [build control], etc. _________________________________________________________________________ Dr. Richard Filipkiewicz phone: +44 171 700 3301 Algorithmics Ltd. fax: +44 171 700 3400 3 Drayton Park email: rick@algor.co.uk London N5 1NU EnglandArticle: 9942
On 14 Apr 1998 19:37:34 GMT, A.Tillmann@t-online.de (Andreas Tillmann)
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Article: 9943Gareth Baron wrote: > > Is there no way of using a makefile for building stuff. The Unix versions are > command line driven and you can call the exe's directly. Eg NGDBUILD etc. > > I'm sure Xilinx must have a set of makefiles/batch files to do this. > > ------------- > Gareth Baron > From NGBUILD on you can run the Foundation tools from a command line under WIN95/NT. i.e. you can dump the Project/Design manger GUI stuff custom tune the implementation process, AND get source level revision control into the bargain. The only problem is using Foundation Express to get from the HDL source to an XNF netlist. BTW: It looks like we might be stuck with this since it seems that XVHDL (Metamor) is to be phased out in favour of Express from the F1.5 release onwards. -- _________________________________________________________________________ Dr. Richard Filipkiewicz phone: +44 171 700 3301 Algorithmics Ltd. fax: +44 171 700 3400 3 Drayton Park email: rick@algor.co.uk London N5 1NU EnglandArticle: 9944
fristot@tirf.inpg.fr (Fristot V.) wrote: >I used to program EPM 7128LC84 and EPM 7160LC84 with MAXPLUS II ver 5.0 >I upgraded MAXPLUS II software to 7.1 version. >7128 & 7160 do not appear in max7000 devices. >What is the problem ? >Is it possible to program these chips with MAXPLUS II ver 7.1 ? > >Thanks. >Vincent FRISTOT >Labo LIS-INPG >GRENOBLE FRANCE From talks with Altera on other parts, you can just type in the number of obsolete parts. The drop down will only list current parts but the program supports any part they have made. In fact when we tried programming some parts we had and got an unsupported error message for some old uv erasable parts which accidently had there support dropped (our rep did not know that that version was ever made) the did a free swap to the newer EE parts for free. Hope this helps -- richard_damon@iname.com (Redirector to my current best Mailbox) rdamon@beltronicsInspection.com (Work Adddress) Richad_Damon@msn.com (Just for Fun)Article: 9945
I've tried fpga express, galileo and synplify and I bought synplify. It is extremely fast and the results in general are very good (both speed and area) but they have one slight problem in optimizing very large combinational designs. I have a very large state machine with 12 states and around 100 outputs decoded from an 8 bit vector depending on state and their size is almost twice as galileo but this is an extreme case. I am very happy with the tool. "James E. Stine, Jr." <jes6@eecs.lehigh.edu> wrote: >Hi, > >I am looking for tips, war stories, and successes from any of you out >there who has >used the Synplify/HDL Analyst Software from Synplicity, Inc. Thanks, in >advance. > >james stine >lehigh university >jes6@lehigh.edu muzo WDM & NT Kernel Driver Development Consulting <muzok@pacbell.net>Article: 9946
I'm trying to use Trianus, ETH's free FPGA development package. I can't get through the first tutorial. It locks up, with a 'bootstrap trap handler', at random points - sometimes I get farther than others. I've tried running on both NT4 (200 MHz PPro, 64 Mb RAM), and Win95 (266 MHz P2, 64 MB RAM). I'm running with Obereon.exe -h 10 to get extra heap. Anyone have any suggestions? thanks, Peter Trei ptrei@securitydynamics.com -----== Posted via Deja News, The Leader in Internet Discussion ==----- http://www.dejanews.com/ Now offering spam-free web-based newsreadingArticle: 9947
Does anyone have any experience - good or bad - with the Dynachip family? We're considering the 6000 series although experiences with their 5000 series would also be appreciated. The advertisement is good and the salesman is better but I have no evidence that the device or the place-and-route software is anything but vaporware. Sam Estess +--------------------------------------------------------------------------+ | Sam Estess estessATrtisDOTrayDOTcom | | Raytheon TI Systems or estessATtiDOTcom | | P.O.Box 655303, MS 8382 Voice: 972/997-6370 | | Dallas, Texas 75265 Fax: 972/997-6234 | | | | All the above is my own opinion. But then, you knew that already. | | | | BEFORE REPLYING - MAKE THE OBVIOUS CORRECTIONS IN MY EMAIL ADDRESS | | | +--------------------------------------------------------------------------+Article: 9948
Does anyone have any experience - good or bad - with the Dynachip family? We're considering the 6000 series although experiences with their 5000 series would also be appreciated. The advertisement is good and the salesman is better but I have no evidence that the device or the place-and-route software is anything but vaporware. Sam Estess +--------------------------------------------------------------------------+ | Sam Estess estessATrtisDOTrayDOTcom | | Raytheon TI Systems or estessATtiDOTcom | | P.O.Box 655303, MS 8382 Voice: 972/997-6370 | | Dallas, Texas 75265 Fax: 972/997-6234 | | | | All the above is my own opinion. But then, you knew that already. | | | | BEFORE REPLYING - MAKE THE OBVIOUS CORRECTIONS IN MY EMAIL ADDRESS | | | +--------------------------------------------------------------------------+Article: 9949
murray@pa.dec.com (Hal Murray) writes: >In article <352edd17.64697690@news.netcomuk.co.uk>, z80@ds2.com (Peter) writes: >> Every Ethernet card, I would think, has a user-settable address. The >> alternative is for the manufacturer to pre-program every EEPROM prior >> to soldering - much less likely. The problem is that I don't know of >> any Ethernet card for which this software is freely available. >The whole idea of having 48 bits for the address is so that you >can allocate a unique number for each board. You really really >don't want duplicates. As far as I know, they are never in the ethernet chip, but always external ROM/PROM/EPROM/EEPROM/Flash. On initialization, the driver reads it out, and writes it to the register on the chip. Some protocols (DecNET) use their own MAC address, computed from the node address. -- glen
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