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Hi. This group is of real help to people that really need help and assistance during the course of designing and programning. Well, all these while i was into desiging and development. now i have been shifted to VERIFICATION and TESTING in VHDL. i have done verification earlier in TESTBENCHES, wrote a code and given input vectors and verified the output vectors. Is this basically how testing is done, or lots more into it. I'am just aware of this way of testing of the VHDL code in TESTBENCHES. If there are many other ways of testing and validation which i'am unaware of PLEASE let me know. I'am refering a book: Writing Testbenches: Functional Verification of HDL Models, Second Edition by Janick Bergeron. well its just the begening. Can i please be informed of sites or pdf doc that will help me gain more knowledge in this. Along with this i request to get info, ideas on the importance, advantages, of testing, diffrent tools used in verification. One last doubt, in verification, do we even work on STATIC TIME ANALYSIS and SYNTHESIS. or this is done by the designer itself.. would be very thankful to get replies soon. Cheers ByeArticle: 92801
Marco wrote: > Hallo, > does anyone has connected 2 FPGA? > Which kind of connection have used? A bit less cryptic than Antti : You can connect them by one or more parallel wires. You can implement an SPI on both sides, an 8bit parallel bus with Read/Write, or something elese. Rene -- Ing.Buero R.Tschaggelar - http://www.ibrtses.com & commercial newsgroups - http://www.talkto.netArticle: 92802
"Antti Lukats" <antti@openchip.org> wrote in message news:dn6b3a$h6c$01$1@news.t-online.com... > "Marco" <marcotoschi@nospam.it> schrieb im Newsbeitrag > news:dn643r$hbo$1@nnrp.ngi.it... >> Hallo, >> does anyone has connected 2 FPGA? >> Which kind of connection have used? >> >> Many Thanks >> Marco > > FPGAs are often connected to each other by different means. > > your question can have no reasonable answers as you are the only person > who know WHY you want to connect the FPGA, and the answer to that question > is needed in order to decide HOW. It all depends why and what you are > going to achive. > > Antti > I must develop a system with lots of I/O, about 180-190. My chief don't want use BGA (fg320), but pq208... so I thought to connect 2 fpga pq208. I think it'is bad... but there are other chances? Otherwise does exist a BGA adapter for fg320 package to change it into a pq320? Many Thanks MarcoArticle: 92803
"Marco" <marcotoschi@nospam.it> schrieb im Newsbeitrag news:dn6f94$l68$1@nnrp.ngi.it... > > "Antti Lukats" <antti@openchip.org> wrote in message > news:dn6b3a$h6c$01$1@news.t-online.com... >> "Marco" <marcotoschi@nospam.it> schrieb im Newsbeitrag >> news:dn643r$hbo$1@nnrp.ngi.it... >>> Hallo, >>> does anyone has connected 2 FPGA? >>> Which kind of connection have used? >>> >>> Many Thanks >>> Marco >> >> FPGAs are often connected to each other by different means. >> >> your question can have no reasonable answers as you are the only person >> who know WHY you want to connect the FPGA, and the answer to that >> question is needed in order to decide HOW. It all depends why and what >> you are going to achive. >> >> Antti >> > > I must develop a system with lots of I/O, about 180-190. My chief don't > want use BGA (fg320), but pq208... > so I thought to connect 2 fpga pq208. > > I think it'is bad... but there are other chances? > > Otherwise does exist a BGA adapter for fg320 package to change it into a > pq320? > > Many Thanks > Marco > ah ok that explains it all. for several reasons the 2 package deal may be better so your chief has hist point on this. if you want to lower cost then the 2 package is probably cheaper both from silicon price, board complexity assembly costs, etc.. but it also makes a little additional 'burden' on the design. but its always like this, to get the production cost a little lower it is needed to invest a little more during design. if you can live with 185 IOs then Altera 1C6 PQ240 has so many ios available! but you need to check the dual purpose pins very carefully. if that is not an options take 2 PQ208 chips and connect some amount of io lines between then, that should be sufficent, you can decide how to implement the interface later. of course you need to partition the design properly so you dont need high speed update over the FPGA intercomm if you are just a few pins short on the PQ208 it may be reasonable to add a low cost microcontroller that both configures the FPGA (saves a penny here) and works as IO extender later AnttiArticle: 92804
We are running some free seminars and labs based on MicroBlaze, here in the UK, in January and February 2006. Outline details for anyone interested here http://www.enterpoint.co.uk/seminar/seminar.html . We may also have a couple if extra dates to add to those already listed TBA. John Adair Enterpoint Ltd. - Home of MINI-CAN. The CAN Bus Development Board. http://www.enterpoint.co.ukArticle: 92805
Hi, I will do some research on video/image processing on FPGA. I will design VHDL codes for some video/image processing algorithms. I needs a FPGA development board with a big FPGA chip on it. I also hope it can be connected with a digital camera or image sensor with real-time image access into the board. It's better if the image in RGB format and input to the board frame by frame. Does any one know where there exist this kind of FPGA development board or not? If not, any suggestion should be really appreciated. Thanks MichaelArticle: 92806
Hi I have a Stratix EP1S80 DSP development board. However, i am not able to get the ADC or the DAC devices on the board to work. What i am trying to do is simply send an analog waveform (eg 1 khz sine wave) into the adc and then try to recover the waveform with the DAC. Can anyone please kindly advice on this or even better if anyone have a design example that can email me? Thanks regards ylc199Article: 92807
"hongying meng" <hm512@york.ac.uk> schrieb im Newsbeitrag news:dn6p4m$m8m$1@pump1.york.ac.uk... > Hi, > > I will do some research on video/image processing on FPGA. I will design > VHDL codes for some video/image processing algorithms. I needs a FPGA > development board with a big FPGA chip on it. I also hope it can be > connected with a digital camera or image sensor with real-time image > access into the board. It's better if the image in RGB format and input to > the board frame by frame. > > Does any one know where there exist this kind of FPGA development board or > not? If not, any suggestion should be really appreciated. > > Thanks > Michael > there are lots of board that can be used but the connectors to the camera are pretty much non standard so you might end up getting an camera and then making an connector adapter to connect the camera to the FPGA board. the digital cameras do not usually have direct RGB output but that is no big deal the format conversion can be done in the FPGA input stage. So lookup your camera, check you can get the connector (sometimes they are hard to get!) and choose your FPGA board that you like AnttiArticle: 92808
Thank you very much for your message! I have got one camera which is BenQ DC1300. It can be connected to PC by USB port. I think there might be some FPGA boards with USB connection. But I am not sure whether these board can connected with this DC1300 or not? By the way, if there are some camera can be connected to an FPGA development board, I would like to buy both of them. Thanks "Antti Lukats" <antti@openchip.org> wrote in message news:<dn6paf$bd0$00$1@news.t-online.com>... > "hongying meng" <hm512@york.ac.uk> schrieb im Newsbeitrag > news:dn6p4m$m8m$1@pump1.york.ac.uk... > > Hi, > > > > I will do some research on video/image processing on FPGA. I will design > > VHDL codes for some video/image processing algorithms. I needs a FPGA > > development board with a big FPGA chip on it. I also hope it can be > > connected with a digital camera or image sensor with real-time image > > access into the board. It's better if the image in RGB format and input > > to > > the board frame by frame. > > > > Does any one know where there exist this kind of FPGA development board > > or > > not? If not, any suggestion should be really appreciated. > > > > Thanks > > Michael > > > > there are lots of board that can be used but the connectors to the camera > are pretty much non standard so you might end up getting an camera and > then > making an connector adapter to connect the camera to the FPGA board. > > the digital cameras do not usually have direct RGB output but that is no > big > deal the format conversion can be done in the FPGA input stage. > > So lookup your camera, check you can get the connector (sometimes they are > hard to get!) and choose your FPGA board that you like > > Antti > > "hongying meng" <hm512@york.ac.uk> wrote in message news:dn6p4m$m8m$1@pump1.york.ac.uk... > Hi, > > I will do some research on video/image processing on FPGA. I will design > VHDL codes for some video/image processing algorithms. I needs a FPGA > development board with a big FPGA chip on it. I also hope it can be > connected with a digital camera or image sensor with real-time image > access into the board. It's better if the image in RGB format and input to > the board frame by frame. > > Does any one know where there exist this kind of FPGA development board or > not? If not, any suggestion should be really appreciated. > > Thanks > Michael >Article: 92809
I'm looking for simple VGA (XGA up to 800x600) controller for displaying simple images on the LCD pannel - any suggestion for available ASIC (LCD controller) or FPGA (VHDL core) design will do. Thanks, DamirArticle: 92810
hongying meng wrote: > Hi, > > I will do some research on video/image processing on FPGA. I will design > VHDL codes for some video/image processing algorithms. I needs a FPGA > development board with a big FPGA chip on it. I also hope it can be > connected with a digital camera or image sensor with real-time image access > into the board. It's better if the image in RGB format and input to the > board frame by frame. > > Does any one know where there exist this kind of FPGA development board or > not? If not, any suggestion should be really appreciated. > > Thanks > Michael Check out Xilinx: Virtex-4 Video Starter Kit (HW-V4SX35-VIDEO-SK-US) This seems to have an RGB image sensor built in. http://www.xilinx.com/xlnx/xebiz/designResources/ip_product_details.jsp?key=HW-V4SX35-VIDEO-SK-US&sGlobalNavPick=&sSecondaryNavPick=Article: 92811
"Antti Lukats" <antti@openchip.org> writes: > <svasus@gmail.com> schrieb im Newsbeitrag > news:1133949644.536667.201480@z14g2000cwz.googlegroups.com... > > Hi all, > > > > I am needed to talk with a microcontroller through an I2C interface > > from my FPGA. I dont want to write a code for it as well not use an > > opensource core. This is partly due to space constraints and testing. > > Speed and cost are not constraints. > > So I was hoping to find a chip which would sandwich between the FPGA > > and I2C interface. > > Searched on the net but could not find any. If anyone has suggestions > > please let me know. > > > > Thank you > > > > regards > > vasudev srinivasan > > > > there is no such thing. > How about these? http://www.standardics.philips.com/products/pca/i2ccontrollers/ > most likely the overhead to talk to the external I2C controller chip is > larger than implementing it in the FPGA > But you may still be right there :-) Cheers, Martin -- martin.j.thompson@trw.com TRW Conekt - Consultancy in Engineering, Knowledge and Technology http://www.trw.com/conektArticle: 92812
"Gabor" <gabor@alacron.com> schrieb im Newsbeitrag news:1133966508.937738.86720@g43g2000cwa.googlegroups.com... > hongying meng wrote: >> Hi, >> >> I will do some research on video/image processing on FPGA. I will design >> VHDL codes for some video/image processing algorithms. I needs a FPGA >> development board with a big FPGA chip on it. I also hope it can be >> connected with a digital camera or image sensor with real-time image >> access >> into the board. It's better if the image in RGB format and input to the >> board frame by frame. >> >> Does any one know where there exist this kind of FPGA development board >> or >> not? If not, any suggestion should be really appreciated. >> >> Thanks >> Michael > > Check out Xilinx: > > Virtex-4 Video Starter Kit (HW-V4SX35-VIDEO-SK-US) > > This seems to have an RGB image sensor built in. > > http://www.xilinx.com/xlnx/xebiz/designResources/ip_product_details.jsp?key=HW-V4SX35-VIDEO-SK-US&sGlobalNavPick=&sSecondaryNavPick= > thats a nice bundle, yes. the FPGA board is actually a ML402 what costs far less as standalone board the micron camera that should be bundled is RGB camera, but its interface does not deliver RGB as parallel, there is some multiplexing required anyway. funnily the camera chip is not on the video daughter board (or nor clearly visible) also there seems to be no suitable connector for the camera and there is no other info so I wonder where the image sensor is hidden? AnttiArticle: 92813
"damir" <damir.makni@srce.hr> schrieb im Newsbeitrag news:dn6s3r$j06$1@bagan.srce.hr... > I'm looking for simple VGA (XGA up to 800x600) controller for displaying > simple images on the LCD pannel - any suggestion for available ASIC (LCD > controller) or FPGA (VHDL core) design will do. Thanks, > > Damir > > there are plenty of them, do your homework. opencores has something, xilinx reference designs include them, and there are other VGA controllers ipcores as well. and most likely non of them suites your needs as it is really dependant on your SoC bus and memory being used. the VGA is simple (LCD even simpler) if... you have high speed easy to use large fast memory for frame buffer. if not then it not so simple any more. look at ML401 reference design there is VGA core on PLB bus, its for non LCD but modification to LCD would be really simple. AnttiArticle: 92814
ylc199 wrote: > Hi > > I have a Stratix EP1S80 DSP development board. However, i am not able to > get the ADC or the DAC devices on the board to work. What i am trying to > do is simply send an analog waveform (eg 1 khz sine wave) into the adc and > then try to recover the waveform with the DAC. Can anyone please kindly > advice on this or even better if anyone have a design example that can > email me? Thanks I remember a colleague having had his problems too. The local Altera distributor was of a great help on the phone. Rene -- Ing.Buero R.Tschaggelar - http://www.ibrtses.com & commercial newsgroups - http://www.talkto.netArticle: 92815
seeing is beliving :) the modelsim precompiled version was offered by HT-LAB for free for some time, but that did not trigger my curiosity level - but now as also EDIF version are available its really simple and easy to test drive the CPU86 ipcore in FPGA! it took about 1 hour to get the core todo something in an Virtex4, the utilization in FX12 was 51% of the slices. http://xilant.com/content/view/19/2/ there is ChipScope Pro snapshot of the first succesfull test. and the CPU86 is from HT-LAB http://www.ht-lab.com/ Antti Hans are you here?Article: 92816
I was trying to program xc2c256_tq144 (CoolRunner II) CPLD using ISE Project Navigator SW version 7.1.04i. I used parallel III cable provided by Digilent to program the CPLD. But I am getting error "iMPACT 583 - '1': The idcode read from the device does not match the idcode in the BSDL file". I tried to view BSDL file but I don't have a clue as to how to modify device IDCODE so device id and expect device id matches. Does anybody know what's wrong here or know how resolve this issue? Thanks in advance. Best regards, NabinArticle: 92817
I've found reference design from Xess for their Xilinx boards - it's for standard VGA, but as you've said - translation for digital flat pannel interface shouldn't be a problem. Damir "Antti Lukats" <antti@openchip.org> wrote in message news:dn6t3l$kos$00$1@news.t-online.com... > "damir" <damir.makni@srce.hr> schrieb im Newsbeitrag > news:dn6s3r$j06$1@bagan.srce.hr... >> I'm looking for simple VGA (XGA up to 800x600) controller for displaying >> simple images on the LCD pannel - any suggestion for available ASIC (LCD >> controller) or FPGA (VHDL core) design will do. Thanks, >> >> Damir >> >> > there are plenty of them, do your homework. > > opencores has something, xilinx reference designs include them, and there > are other VGA controllers ipcores as well. > > and most likely non of them suites your needs as it is really dependant on > your SoC bus and memory being used. > > the VGA is simple (LCD even simpler) if... you have high speed easy to use > large fast memory for frame buffer. if not then it not so simple any more. > > look at ML401 reference design there is VGA core on PLB bus, its for non > LCD but modification to LCD would be really simple. > > Antti >Article: 92818
Hello David Kramer! To me this sounds as some lines of a bus-macro are not used and you want the to keep the routing tool quite. Furthermore, I presume you try to assign some static values to these lines. So far not bad. These constants need to be declared inside an instance. In case of reconfigurable instances these static signals are to be declared inside these instances and provided to the bus-macro via the port list. On the receiving side a drain in form of a signal is needed even if it isn't connected to something processing. By this all dummy signals are declared inside instances. Giving placement constraints to tiny little things is somewhat time wasting and confuse the routing. Finaly, your design should be build hierarchicaly from larger entities. Cheers akuehnArticle: 92819
Nabin, leave the bsdl file alone, try first to reduce the speed of the cable, and if still doesn't work post the output of impact here to see how different they are (I mean in which way) Aurash nshrestha wrote: > I was trying to program xc2c256_tq144 (CoolRunner II) CPLD using ISE > Project Navigator SW version 7.1.04i. I used parallel III cable > provided by Digilent to program the CPLD. But I am getting error > "iMPACT 583 - '1': The idcode read from the device does not match the > idcode in the BSDL file". I tried to view BSDL file but I don't have a > clue as to how to modify device IDCODE so device id and expect device > id matches. Does anybody know what's wrong here or know how resolve > this issue? Thanks in advance. > > Best regards, > Nabin >Article: 92820
"nshrestha" <nshrestha@msn.com> schrieb im Newsbeitrag news:1133968595.585555.327370@g49g2000cwa.googlegroups.com... >I was trying to program xc2c256_tq144 (CoolRunner II) CPLD using ISE > Project Navigator SW version 7.1.04i. I used parallel III cable > provided by Digilent to program the CPLD. But I am getting error > "iMPACT 583 - '1': The idcode read from the device does not match the > idcode in the BSDL file". I tried to view BSDL file but I don't have a > clue as to how to modify device IDCODE so device id and expect device > id matches. Does anybody know what's wrong here or know how resolve > this issue? Thanks in advance. > > Best regards, > Nabin > its an generic warning that usually doesnt tell you at all whats wrong there is no need to touch the BSDL file, there is some JTAG problem with your setup so you need to troubleshoot it try reading the chain with chipscope does it show correct ID? AnttiArticle: 92821
I have an FPGA board. I want to use ONLY one LED on the board. Is it enough to assign only one pin (the one to which is connected the desired LED) in the constraints file (ucf). What about the remaining >600 pins ? in which state will they be ? If the question is too stupid give me please pointers to documentation !!! MehdiArticle: 92822
Stephen a écrit : > > Ps we don't have an external web page, yet, but we are evaluating > options, so please send us suggestions if there's something specific > you'd like to see. My 2 cents, Maybe electronic versions of xilinx publications in academic conferences, for those who are not registered at ACM/IEEE digital libraries. Regards, Steven > >Article: 92823
>>hongying meng wrote: >> >>>Hi, >>> >>>I will do some research on video/image processing on FPGA. I will design >>>VHDL codes for some video/image processing algorithms. I needs a FPGA >>>development board with a big FPGA chip on it. I also hope it can be >>>connected with a digital camera or image sensor with real-time image >>>access >>>into the board. It's better if the image in RGB format and input to the >>>board frame by frame. >>> >>>Does any one know where there exist this kind of FPGA development board >>>or >>>not? If not, any suggestion should be really appreciated. Pixel Velocity makes a 'Brilliant Camera' with an AltaSens HDTV color sensor, Virtex2Pro XC2VP20, XC2VP30 or XC2VP50, 10/100 or Gigabit Etghernet and runs embedded Linux. http://pixel-velocity.com/intelligentcamera.html --- Joe Samson Pixel VelocityArticle: 92824
:) Yes it should be enough. Rest of them should be in highZ regards Jerzy Gbur
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Compare FPGA features and resources
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