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Comp.Arch.FPGA is a worldwide Usenet news group that is used to discuss various aspects of Field Programmable Gate Array (FPGA) based computing systems development.
We found 2823 threads matching "spartan"
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The most relevant threads are listed first
Spartan 3E slower that Spartan 3?
George Mercury - 2005-04-17 07:16:00
Hello guys,
I just made a quick speed test in ISE 7.1 with a Spartan 3E device. A
32-bit counter runs at 129 MHz in XC3S500E-4, but in a Spartan 3
XC3S400-4 at a higher 168 MHz. Also checked a few other desings, like
DDR SDRAM controller, and they all run about 20% slower on Spartan 3Es.
I don'...
Spartan-3 : preconfiguration pull-up/float ?
Amontec Team - 2003-09-15 05:23:00
Hi,
For the Spartan-II, the preconfiguration pullup resistors were selected
by the M2 configuration pin. What about for the Spartan-3?
My new design has to connect an ARM7TDMI bus to the SPARTAN-3. I need to
make sure my ucLinux will boot correctly, and so make sure about the IO
pins sta...Spartan 2 & 3, serial config and CS pin
aleksa - 2010-05-16 05:56:00
Spartan 2 docs clearly says that, even though
you are configuring the FPGA in serial mode,
you should keep CS pin high.
What about Spartan 3?
I don't see something like:
"Yes, Spartan 2 had an error, but it has been fixed in Spartan 3"
...Which WebPack for old Spartan and Spartan-2?
Leland C. Scott - 2010-01-13 20:22:00
I'm looking for a good stable version of WebPack that supports the old
Spartan and Spartan-2 devices for legacy product maintenance. Any
recommendations?
Regards;
Leland C. Scott
KC8LDO
...Which WebPack for old Spartan and Spartan-2?
Leland C. Scott - 2010-01-16 00:07:00
I'm looking for a good stable version of WebPack that supports the old
Spartan and Spartan-2 devices for legacy product maintenance. Any
recommendations?
Regards;
Leland C. Scott
KC8LDO
...Which WebPack for old Spartan and Spartan-2?
Leland C. Scott - 2010-01-16 17:59:00
I'm looking for a good stable version of WebPack that supports the old,
Spartan and Spartan-2 devices for legacy product maintenance. Any
recommendations?
Regards;
Leland C. Scott
KC8LDO
...Xilinx Spartan E
Brad Smallridge - 2008-09-16 19:16:00
What happend to the Spartan E?
Is it eaten up by the Spartan 3A
and 3AN?
The Spartan 3A starter kit from
Xilinx looks like it's from Digilent.
But the Digilent web site didn't show
the Spartan 3A development kit.
Brad Smallridge
Ai Vision
...Spartan 3 configuration
gopal_amlekar - 2010-02-03 03:40:00
Hello,
Few days back, I got a good help from this forum about CPLD programming.
I have succeded in making my own design based on a microcontroller to
configure a spartan 2 as well as to program XC95108 CPLD.
Now I am moving to Spartan 3 and struggling with it. A very good document
from Xilinx...design in vsprom
wuyi316904@gmail.com - 2006-07-03 11:36:00
I have a design for vsprom.My idea is that config FPGA with Xilinx CPLD
and parallel flash memory.The design is correct in spartan platform but
failure in spartan-2.Can u give me some suggestions?
I know that the algorithm of config spartan and sparan-2 is
different.There is a internal counter...Spartan XL Tool Support
Anup Kumar Raghavan - 2003-07-07 04:40:00
Hello I want to use Spartan XL FPGA for a project and found out that my
installation of the Xilinx ISE 5.2 i (Alliance) does not support this
device.
I can only install later versions of the Spartan devices and not the XL
family.
Can I get some suggestions on what I should do to use Spartan X...Migration from Spartan-2E to Spartan-3E
Stefan Tillich - 2006-09-26 04:41:00
Hi,
I'm investigating the possibility to replace an Spartan-2E (xc2s400e)
with an Spartan-3E (xc3s1200e) device on a PCB.
The core voltage drops from 1.8V to 1.2V. Has anyone experience
regarding the footprint differences (easy/hard/impossible to adapt) and
any other differences which mu...Spartan: How to select device as Spartan/SpartanXL
Naimesh - 2004-06-21 04:40:00
I need to use spartan series FPGA for a design.( As design have only 5 V supply available). when I start a new project in XILINX ISE 6.1 I dont get option of Spartan in Device selection list. can anyone help me out. which software do I need. Thanks for any help
...Spartan-4 ?
Antti - 2006-08-28 04:43:00
New low cost families other than from Xilinx are known to be coming
this autumn (Cyclone-3, MAX3, LatticeXP2) but there is no advance info
an Spartan-4 yet, is there a hope at all that there will be modern low
cost family from Xilinx too?
Spartan-3 is 'not for new designs' as there is no price...Spartan-6
Antti - 2009-01-23 04:24:00
it seems that first references to the upcoming Spartan family are in
the wild already
http://www.linkedin.com/in/ericschristiansen
I assume the spartan-6 mentioned there is not a typo
(actually i am almost sure it isnt)
Antti
...Config Spartan3 in serial slave mode
Guenter Dannoritzer - 2004-11-29 19:57:00
Hi,
I have a design where a Spartan XL was replaced by a Spartan 3. The FPGA
is configured by an ATmega MCU which loads the configuration file into
the FPGA. This procedure works fine with the old board and the Spartan
XL, but with the Spartan 3 I have the trouble that I never get the DONE ...my Spartan-4 wishlist
Antti - 2008-03-03 14:40:00
here it is:
1) devices densities like in Spartan-3 (50..5000)
2) devices packages like Spartan-3E (including QN132 !) or better
(microBGA 6x6 mm?)
3) all good features of S3A/AN !!
4) design security with OTP encryption key (like Lattice ECP2)
5) other features as already planned by Xilinx
...Designing for Xilinx Spartan in 2010?
Thomas Heller - 2010-10-20 07:39:00
Hello all,
I need to change a design that I have done years ago in Spartan XCS05 devices.
Unfortunately I have failed to install software that is capable to do this.
I found an old carton containing ISE 4.1i, could install this but the FPGA Express
License that is included in it is expired (...Spartan 3E and Spartan 3 with GTL
Sima - 2005-09-06 06:01:00
Hello
I'm wondering what alternatives I have to GTL on an Spartan 3E. I would like
to use an output pin as an open collector output with an external pull-up to
5 Volt. This is to interface 5 Volt logic.
On the Spartan 3 we used GTL outputs.
...JESD204A and Spartan-6 GTPs
YH - 2011-06-29 10:59:00
Hi,
I read the application note “Virtex-5 FPGA Interface to JESD204A
Compliant ADC”.
I’m designing a pcb with a JESD204A NXP DAC linked to Spartan-6 GTP Dual
tiles.
I try to know If I’m actually going to be able to implement this
interface in Spartan-6.
For example, in the applicat...Spartan-6 Boards
John Adair - 2010-10-10 09:25:00
It been over a year since we produced our first Spartan-6 board and we
now have 3 main products, Raggedstone2, Drigmorn3 and Drigmorn4 based
on Spartan-6 and now ramping up into serious volumes. Spartan-6 has
become available in large numbers in lot's of variants and we are
start to make other d...spartan FPGA with PLCC package
2006-03-27 04:31:00
Hi,
is any spartan FPGA is in PLCC package?also its availabilty ?
I want to use spartan series FPGA & not the any other spartan seris
like spartan 2e etc.
which sprom should be used?
...DDR for Spartan 3
maxascent - 2006-03-09 06:18:00
Hi
I would like to design a DDR controller for a Spartan 3. I have tried
using MIG 1.5 but without much success. It claims to work with all Spartan
3 devices, yet I have found it to be unreliable and not generate designs
with all Spartan 3 devices. Can I ask how others go about with DDR. Do you
d...Spartan 3 and 5V input
Nevo - 2006-08-27 21:19:00
Newbie alert...
I would like to drive my Spartan 3 design with inputs from a 5V source. I've
been unable to find anything in the Spartan 3 datasheet that lets me know if
this is do-able. (The signal will be coming fom the parallel port on my
laptop, which I suspect probably is 3.3V but I w...spartan 3 on 4 layers
colin - 2004-10-13 04:35:00
Hi guys
I have just finished routing a simple board with a 208 pin qfp spartan
3. I have just used top and bottom layers and it is time to add the
power. I need 3.3v for all IO and the 1.2v and 2.5v for vccint and
vccaux. I have not routed any signal under the spartan on either layer
so I pla...LVDS on Spartan 3
Chris Cheung - 2004-02-13 15:25:00
hi all,
I am new to the LVDS stuff. I am going to implement a LVDS transceiver
on XC3S400. I got the XAPP622 application note (talk about using LVDS on
VirtexII and VirtexII pro) from Xilinx sites. I am wondering if the same
idea could apply to Spartan 3 (I know Spartan 3 runs slow than...Spartan2 and Spartan3 BlockRAMS Can they work thesame?
Peter C. Wallace - 2006-03-22 16:12:00
Despite trying all the read/write options on a Spartan 2 design I am moving
to Spartan 3, The Spartan 3 BlockRAMS always seem to take one more clock
to valid data output from a write from the other side.
I'm using ISE 6.3 and have tried inferring the RAMS with the VHDL source
and using the cor...Configuring a Spartan 3A1800 ExtremeDSP from Spartan3 cable?
Paul Boven - 2008-03-20 10:25:00
Hi everyone,
Just ordered a Spartan 3A ExtremeDSP Starter Kit. It comes without a
programming cable, but I figured I could re-use the cable from my trusty
Digilent parallel cable from the Spartan-3 kit. The pinout is certainly
the same (6 pins single header). But I've just noticed that the Dig...Implementing FIFO in Spartan-II
Atif - 2003-08-27 23:46:00
I'm using Spartan-II XC2s50 with platform flash Prom XCF01s. I've to
implement a 32x1 FIFO (with 16 bits for data of channel I and 16 for
channel Q).
I'm thinking to implement it in the Block RAM (Is there any other
method which is more efficient than this one in SpartanII?).
The dual RAM ports...Different capabilities
Thomas Nilsen - 2004-08-12 05:39:00
Hello.
Im a new masters degree student and i want to have a kit at home.
I need help on selecting the right development kit for me.
What are the difference in capabilities for the Spartan 3, Spartan 2,
Spartan 2E. These three types seems like the boards that have a reasonable
price for me.
-...Spartan 3E config
maxascent - 2007-11-08 09:27:00
Hi
Does anyone know if it is possible to configure a Virtex 4 using a Spartan
3E. I want to connect a Flash memory to the Spartan and set this to be the
master. Once configured I want the Virtex 4 that is the slave to
configure.
Cheers
Jon
...Spartan-3 -> Spartan-2 problem
aleksa - 2008-09-04 11:34:00
About two months ago I've started learning VHDL, CPLD and FPGA.
Right from the start I've choosen Spartan-3 (XC3S50) and
didn't look at Spartan-II because I wanted to use the latest chip.
Now I am making a board with 50 5V TTL inputs and idea was to use
the CPLD XC95144XL as a level translat...Spartan3 device with long availability
Thomas Heller - 2010-11-20 04:27:00
I have to develop some electronics that will probably fit nicely into
a spartan3 device xc3s200 or xc3s400. Which series / package should
I choose for long availability?
I am considering the TQFP144 or PQ208 package, I try to avoid BGA.
Will there be any differences in the long-term availabil...How to configure SPI FLASH using Spartan-3E?
Sven - 2007-04-26 05:57:00
I have a system with a Spartan-3E with an SPI flash. I have been using the
xspi.exe DOS program to configure the SPI flash. But now I'm wondering if
the new ISE IMPACT 9.1 or later is able to configure the SPI flash though
JTAG?
I saw in XAPP974 for the Spartan-3A that it was possible a...interfacing DDR memory to a spartan-3
2004-12-27 04:00:00
Hi
In order to connect a DDR memory component (not the DIMM) to spartan-3
- Is it better to use DCI on spartan-3 pins ? If so is there an example
?
- What sort of termination is required at the memory end.
- Is there a reference schemetic ?
Thanks
Sumit
...May i program a Spartan 3 fpga with a 1,8 V Digilent cable?
blisca - 2007-11-06 05:20:00
Hi ,i like to use cpld and fpgas scraped by boards at home at the purpose of
practicing VHDL.
I have some Spartan 3 XC3S1500,and an inexpensive Digilent JTAG cable
rated 1.8 to 5.5 V.
There is some trick to use it for programming a Spartan 3 ,having a core
voltage of 1,2V?
Thanks
Diego,Ita...How to send data/program to the memory of a Spartan 3 starter kit board
Jialin - 2006-11-07 10:33:00
Hi my friends,
We know little about Spartan and Xilinx. We are connecting our
Spartan 3 starter kit board to a PC and using Xilinx ISE 8.1 to control
it.
We want to find a way to load our program ( instructions) into the
memory of
the Spartan board. Could you tell me how? We will appreciat...Re: Spartan3E or Cyclone III ?
John Adair - 2009-06-29 17:23:00
Sudhir
One other Xilinx advantage can be the SRL16 construct where the LUT is
used as a shift register rather than just a ram. The SRL16 alone can
shrink some designs by a lot if the design can make use of it.
For boards in 4 months Spartan-6 would be very difficult to get, if
not impossibl...Spartan/SpartanXL Device Selection
Naimesh - 2004-06-21 07:06:00
I need to use spartan series FPGA for a design.( As design have only 5
V supply available). when I start a new project in XILINX ISE 6.1 I
dont get option of Spartan in Device selection list. can anyone help
me out. which software do I need.
Thanks for any help
...Xilinx CIC core in Spartan 3?
2007-05-30 10:53:00
Does anyone know if the Xilinx CIC core will work in the Spartan 3?
It's not listed as a target (only Spartan IIE) but then the data sheet
is dated 2002, wheras S3 apparently was announced in 2003...
...spartan-3 I/O timing
Robert Sefton - 2004-09-13 22:19:00
Can someone explain this to me?
Here's the LVTTL I/O timing for Virtex-2 -4 and Spartan-3 -4 (Fast 12mA
drive for the outputs):
Virtex-2 Spartan-3
-------- ----------
TIOPI 0.88ns 2.15ns (pad to IOB .I output)
TIOOP 1.74ns ...