Re: [casper] New 10.1 blocks

Dave, is your 7.1 version of these library blocks available for use by others? These blocks, and especially the convert block, would be useful for our pulsar machines. John Hi All There are new blocks in the casper 10.1 DSP library, ported from Dave McMahon's 7.1 library. Highlights

Re: [casper] Interest in CASPER

Dear Sir, Thank you for your time. I am writing for some further information about CASPER and correlative works. I am a graduate student of National Astronomical Observatories Chinese Academy of Sciences and at present I am dealing with the digital back end for radio

[casper] python and other gee2 linuxoodies for b

Hi all. Is there a repository of stuff like this precompiled for the bee2 ppc kernel? Or is it necessary to install from source? I'm intereted in particular in using some of Aaron's python from the corr python module. Thanks. John

Re: [casper] (no subject)

. Is it possible this is some sort of race condition in the xflow program? The new machine that I'm installing is a quad core 3 GHz 12 MB cache monster, and maybe some funky bug is showing itself? Thanks, Henry John Ford wrote: ## Preparing software files

Re: [casper] iBOB to iBOB over 15m CX4

Has anyone tried to send 10Gbe data to an iBOB over long (10-15m) CX4 cables? We find that the iBOB can transmit OK but not receive - its carrier detect LED does not light up. We have no problems with 3m cables. Not sure if changing pre-emphasis or signal level would help as the problem

Re: [casper] Work around for long FFTs/PFBs

We are going to put that fix in the ported version of the library (it's not in the current green blocks). Right now you need to change those values to a variable and keep the backpopulate_mask script from removing that variable to get around the problem. -Terry On May 5, 2008, at 6:51 PM,

Re: [casper] matlab/simulink required libraries

Obviously it's too early for me to be writing mails. I found the statement later in the page. But I still think it would be better to call these required, as without being able to simulate your designs, you're really up a creek. John Hi all. The following from the bee2 mssge page is missing

Re: [casper] LWIP in 10.1

Running generate for OS'es, Drivers and Libraries ... Running generate for lwIP library ... Generating xemacliteif_g.c ... Generating lwipopts.h file ... ERROR:MDT - lwip () - error copying ./src/contrib/ports/v2pro/netif/xemacliteif_polled.c to

Re: [casper] LWIP in 10.1

it has to do with cygwin/xygwin somehow? On Tue, Aug 19, 2008 at 1:03 PM, John Ford jf...@nrao.edu wrote: Running generate for OS'es, Drivers and Libraries ... Running generate for lwIP library ... Generating xemacliteif_g.c ... Generating lwipopts.h file ... ERROR:MDT - lwip

Re: [casper] fast serial communications: orientation to F-O options

(I have re-read a prior thread from early May on this topic involving John, Matt, Jouko, and Francois, however the sourcing information was from 2005, and the applicability of the information to our situation was not entirely clear from the conversation. Also perhaps more has been learned

Re: [casper] Confusion/bug in green FFT block

I did get strange results when my sync pulse was too short, but that is likely just the block resetting before the reorder finishes. as laura points out, the FFT's minimum sync pulse period is tricky: see casper memo #24 http://casper.berkeley.edu/memos/sync_memo_v1.pdf btw, many people

[casper] Updated 7.1 library?

Hi Glen, and all. A few weeks ago, there was traffic about the relative inefficiency of the green block FFT, in terms of resource usage by the reorder blocks. Glen, I think you mentioned that you had updated the 7.1 library. did I remember that right? Where can we get this library, if so. We

[casper] GAVRT library

Hi Glen. I was wondering if your GAVRT library was compatible with the backport stuff you did. I have a design that builds with the old libraries that seems to fail with the backported libraries plus your original gavrt library. I'll send the mdl file if you want to look at it. It's too big to

Re: [casper] GAVRT library

On Mon, Oct 20, 2008 at 8:05 AM, John Ford jf...@nrao.edu wrote: Hi Glen. I was wondering if your GAVRT library was compatible with the backport stuff you did. I have a design that builds with the old libraries that seems to fail with the backported libraries plus your original gavrt library

Re: [casper] PFB timing error

Does anyone have any suggestions for fixing this error? It seems due entirely to the large fanout (450!) in the coefficient generator. We're stuck on this for building our 4K channel 800 MHz pulsar machine. It is introducing errors into the spectrum. John Hi all. Here's a timing error that

Re: [casper] PFB timing error

MB. Let me know if you want a look at it.) John Thanks, Henry John Ford wrote: Hi John, I've definitely run into the same issue, but haven't had a chance to tackle it yet. It could be a pain, but I would try to hack the design to change the PFB coefficients by one LSB or something

Re: [casper] Question on control software on the ROACH

Hi all: I just could not find any documents in casper web site talking about the control software running in the PowerPC. So my first question is how can I use the interface between FPGA and PowerPC? For example, how can I design a block memory which can be written by ADC module and can be

Re: [casper] Question on control software on the ROACH

Hi John: Could you tell me where is the snap block? Is it a customized block? They are in the CASPER DSP Blockset/Scopes folder. John Thanks Wan -Original Message- From: John Ford [mailto:jf...@nrao.edu] Sent: Saturday, 8 November 2008 12:33 AM To: Cheng, Wan (ATNF

Re: [casper] System Generator 7.1

Hi Folks, I've recently acquired an iBOB and an iADC card, and I'm in the process of setting up my Matlab/MSSGE software. I'm running Matlab 7.6.0 (R2008a) and Simulink v7.1. From Xilinx, I have ISE 10.1, System Generator 10.1, and EDK 10.1. However, I want to use the MSSGE version 7.1,

Re: [casper] iBob and RS232 problems

Hi. We just finished getting an ibob up and running from the prom, and we saw a few strange things that might be related: 1) We had to cycle the power to get the design to load into the FPGA, even when we checked the right boxes. This is unusual, but not unheard of. 2) We couldn't even get it

Re: [casper] 10.1 Toolflow

Hi guys, I have installed version 10.1 of the toolflow, and when I try to build a design, it compiles fine until it gets to the copying base system step, where I get the following error: Error using == gen_xps_files at 286 Unpackage base system files failed. Run out of disk space? Run

[casper] 10.1 problem

Hi all. I've downloaded and installed the 10.1 toolset, the right matlab stuff, and installed it all. I grabbed the tarball off the casper web page, installed it, then updated it from svn. I made a simple model of 2 software registers, simulated it, saved it, and ran bee_xps on it. There is a

[casper] SVN error

Hi all. I decided to check out the Roach subdirectory: C:\casper\roach\sw\linux\include\linux\netfilter_ipv4\ipt_CLUSTERIP.h C:\casper\roach\sw\linux\include\linux\netfilter_ipv4\ipt_REJECT.h In directory 'C:\casper\roach\sw\linux\include\linux\netfilter_ipv4' Can't open file

[casper] maximum 10 GbE packet size

Hi. Does anybody know the actual limit on packet size for the original xilinx and the V2 10 GbE cores? The documents say something vague like about 8k bytes, but is there a known hard limit to the packet size in each case? We want to package up 8K (8192) bytes of data + a few words of framing,

Re: [casper] maximum 10 GbE packet size

, but YMMV. Thanks. We will want to have our system ready to migrate forward, so we will not push the packet payload past 8192 bytes. John Jason On 22 Jun 2009, at 13:16, John Ford wrote: Hi. Does anybody know the actual limit on packet size for the original xilinx and the V2 10 GbE cores

[casper] parspec with 10.1?

Has anyone ported parspec to 10.1, or failing that, does anyone have a 10.1 design that is similar that could be used in an ibob? Thanks! John

[casper] ROACH power consumption

Hi all. Has anyone measured (or calculated...) the maximum power consumption of a ROACH with a full SX95 chip? Anyone hazard an estimate, if not a measurement or calculation? Thanks! John

Re: [casper] large green FFTs

, but it doesn't quite work yet. We have a couple of ROACH boards in the mail to us, so I guess we'll be migrating to 10.1 soon enough! John My compile was 8192 channels (16384 channel) at 200MHz. Jason On 27 Jul 2009, at 11:02, John Ford wrote: I compiled an 8192 channel FFT the other day

Re: [casper] XAUI synchronisation

Hi, John, On Aug 28, 2009, at 6:02 , John Ford wrote: We need a packet-enabled PFB and FFT, and then we could discard this synchronizer business, but until then, we are stuck using a synchronous system. We are running at 1.6 Gs/s. Do you expect the packet enabled PFB and FFT

Re: [casper] casper Digest, Vol 21, Issue 26 (Ethernet core)

Hi, For the error ERROR:MDT - opb_ethernetlite (adc_tutorial_ibob_lwip_ethlite) - E:\work\adc_tutorial\XPS_iBOB_base\system.mhs:369 - invalid license or no license found!, since the license for ISE 7.1 is no longer available from the web (the one from the web is for ISE 11), is the

[casper] SVN error

I get this when trying to sync my SVN: C:\casper\roach\sw\linux\include\linux\netfilter_ipv4\ipt_REJECT.h In directory 'C:\casper\roach\sw\linux\include\linux\netfilter_ipv4' Can't open file 'C:\casper\roach\sw\linux\include\linux\netfilter_ipv4\.svn\tmp\text-base\ipt_TCPMSS.h.svn-base': The

Re: [casper] mkbof error

Hi all. I'm sneaking up on getting my 10.1 development system working. It works if I run it as an adminstrator, but as myself, it fails thusly: I fixed this by allowing all users to create files in the root directory, that is, C:\ . When I hacked mkbof the last time, I replaced mktmp() with

Re: [casper] questions about tut4 from ref_designs_tutorials (wide-band version of pocket correlator)

Billy, I'm using a windows xp (32bit) machine with 2GB memory. It seems like I have to increase the physical memory. But windows xp doesn't support 4GB memory. Does it mean I have to upgrade to 64bit windows xp or some server version? Hi Zhiwei, You can put in 4 GB, and use the /3GB boot

[casper] Interesting memo on digitizers and data transmission

Thought this might be of interest: New Electronics Division Technical Note EDTN No. 213 Title: Word-Boundary Detection in a Serialized, Gaussian-Distributed, White-Noise Data Stream Authors: Matt Morgan, Rick Fisher Date: October 13, 2009

Re: [casper] Fwd: Re: SPDO ROACH spectrometer

casper collaborators, appended below is further info on roach ethernet problems seen at CSIRO: any ideas? If I recall correctly, Alan mentioned this problem at the workshop, and the problem was that some of the PHY chips were faulty at one point. This may be what's going on. Hopefully

[casper] build error

Hi all. I'm installing a new incarnation of our build system on a new machine. It's 10.1.03. With a simple roach example, I get the following error: ... XSG generation complete. # ## Copying base system ## # ## Copying

Re: [casper] build error

for the idea. i'll let you know how it turns out tomorrow! It seems that our version 11 system is almost ready to go, too. Just have to get system generator properly installed. John Mark On Mon, Nov 2, 2009 at 4:18 PM, John Ford jf...@nrao.edu wrote: Hi all. I'm installing a new incarnation

Re: [casper] Fwd: Re: SPDO ROACH spectrometer

/binaries/linux/uImage-20091006-mmcfix should be good. I have never tried pulling such volumes over the SSH shell, but it works fine with KATCP. I will ask him to comment further. Jason On 30 Oct 2009, at 01:25, John Ford wrote: casper collaborators, appended below is further info

[casper] xlUpdateModel

Hi all. I'm trying to port a rather complex model to 10.1, and I had hoped that xlUpdateModel would allow me to do it rather easily, but when I run it Matlab crashes. It seems to choke on the gavrt library's vacc module. Has anyone gotten this to work, or should I forget it and just redraw the

Re: [casper] broken links

John Ford wrote: Hi all. I'm getting a message from simulink that my library links are broken on my pfb and fft, and some other casper and gavrt blocks. I relinked them, but they are broken again after reconfiguring the block. Is that normal? Seems to work OK. If you change a parameter

[casper] Questions on porting to ROACH

OK, so my naive port of guppi from bee2/ibob to roach failed, because I ran out of resources. After Randy and I updated the 5 designs and combined them into one design, in my initial try at the port, I told the dual 2^12 PFB/FFT blocks to optimize for multipliers. I promptly ran out of slices.

[casper] ADC083000x2 block

Hi all. I'm looking at using this block, and the documentation doesn't quite match up to the block. I'm using only zdok0. The outputs on the block are labelled adc0_i0,adc0_q0, ... ,adc0_i3,adc0_q3. Are these just demuxed output samples at 1/4 the clock frequency, like on the ADC, or are they

Re: [casper] Questions on porting to ROACH

). Regards Andrew 2009/11/11 John Ford jf...@nrao.edu OK, so my naive port of guppi from bee2/ibob to roach failed, because I ran out of resources. After Randy and I updated the 5 designs and combined them into one design, in my initial try at the port, I told the dual 2^12 PFB/FFT blocks

Re: [casper] Timing error

On Nov 12, 2009, at 16:36 , John Ford wrote: At least one timing constraint is impossible to meet because component delays alone exceed the constraint. I think this means that part of your design synthesized to multiple levels of combinatorial logic where the sum of each level's component

[casper] Matlab Killed on Linux machine

Hi all. I had a few instances where I left a large build running and came back to a message on my shell : Matlab Killed After a few times, it sunk in to my (sometimes thick) head and I realized this happens if I have a file or a terminal in the XPS_ROACH_base directory tree open. I guess it's

Re: [casper] Matlab Killed on Linux machine

Hi, John, What OS was this on? Red Hat EL 5.3 or 5.2, 64 bit John Thanks, Dave On Nov 13, 2009, at 4:45 , John Ford wrote: Hi all. I had a few instances where I left a large build running and came back to a message on my shell : Matlab Killed After a few times, it sunk in to my

Re: [casper] Matlab Killed on Linux machine

Regards Andrew 2009/11/13 John Ford jf...@nrao.edu Hi all. I had a few instances where I left a large build running and came back to a message on my shell : Matlab Killed After a few times, it sunk in to my (sometimes thick) head and I realized this happens if I have a file or a terminal

[casper] SC09

By the way, NRAO has a booth at Supercomputing '09 (#2892) I just shipped out a computer/GPU, a ROACH, and our artificial pulsar so we can try to put on a demo. Real-time Supercomputing is the theme. The rest of the booth is the usual NRAO booth you might see at AAS meetings. I hope it works

[casper] roach_spec

Hi all. Does anyone have any info on the roach_spec design that is in the etch boffiles directory? More to the point, does anyone have a roach-based spectrometer bof file I can load into my roach? The bof I generated locally causes a kernel panic. John

[casper] 10 GBe Switch weirdness

Hi all. We've been running GUPPI for some time now with a direct connection from our bee2, bee2 to our host, beef. Works fine, no dropped packets, etc. Life's fine. To build our next machine, GUPPI-2, we decided to insert a Fujitsu XG-2000C switch between them, and now we are losing packets.

Re: [casper] 10 GBe Switch weirdness

, which isn't till next week. You sound as though you've seen this before. :) John On Tue, 24 Nov 2009, John Ford wrote: Hi all. We've been running GUPPI for some time now with a direct connection from our bee2, bee2 to our host, beef. Works fine, no dropped packets, etc. Life's fine

Re: [casper] 10 GBe Switch weirdness

switches. Peter -Original Message- From: casper-boun...@lists.berkeley.edu [mailto:casper-boun...@lists.berkeley.edu] On Behalf Of Dan Werthimer Sent: Tuesday, November 24, 2009 3:34 PM To: John Ford Cc: casper@lists.berkeley.edu Subject: Re: [casper] 10 GBe Switch weirdness hi

Re: [casper] 10 GBe Switch weirdness

think the NIC-switch cable length makes much difference. I've used everything from 0.5m to 5m and they all worked fine. These ports have some form of auto-equalisation which seems to work very well. Jason On 25 Nov 2009, at 15:59, John Ford wrote: Matt and I have had problems with BEE2 - switch

[casper] Free hardware?

Hi all. Anyone have any surplus ibobs and/or iadcs that they could loan us? We have a couple of projects on a short fuse with no money that could benefit from some boards. We could use 2 ibobs and 4 iadcs. John

[casper] Multiple 10 GbE boards

Hi all. I saw these demonstrated at SC09. Very cool. :) http://www.hotlavasystems.com/ Might be of use to some of you. John

Re: [casper] Silly NFS problem

Hi Glenn. I managed to get ours working with the guide. Our exports file says: Yes, Master1002 more /etc/exports /export/home/tofu/cicadaroots 169.254.128.0/24(sync,rw,no_root_squash) And: Yes, Master1003 ls /export/home/tofu/cicadaroots/ bee2Guppi filesystem_etch_nfs_2009_07_07.tar.gz

Re: [casper] Hang issue when trying to wr/rd a register

Hello all, What toolflow did you use to compile your .bof file? Someone correct me if I'm wrong, but the only version of the CASPER toolflow that will work with the BEE2 is 7.1. I've tried running designed built using 10.1 on a BEE2, and this is exactly what happened. Though this was also a

Re: [casper] Hang issue when trying to wr/rd a register

Hi. Does anyone know what the status of this is? Does borph on the bee2 work under 10.1? John Hello, When I've had odd behavior like this before it turned out to be a corrupt bof file. I would try recopying the design to the BEE2, but admittedly it's a bit of a long shot. Glenn On

[casper] BEE2 hanging

Hi all. We're working hard on cleaning up our 800 MHz Coherent Dedispersion pulsar machine for production. We have it working with 8 GPU machines, and from 64 to 2048 coarse channels. One problem we have is that with our output FPGA that rearranges the data and ships it off simultaneously over

Re: [casper] BEE2 hanging

. will find out. BORPH has occasionally acted strangely for us when we use ascii mode so we don't use it anymore. Good to know this. By the way, this is all with version 7.1. Thanks. John Mark On Fri, Jan 29, 2010 at 1:23 PM, John Ford jf...@nrao.edu wrote: Hi all. We're working hard

Re: [casper] ROACH-based pulsar machine?

that John Ford is using 8 GPUs for 800 MHz. Can you get several GPUs on the single bus of a multi-core host or does that cause too much of a bottle-neck? I also should think about doing the various piggy-back tasks in parallel. I'm guessing that setispec on a ROACH is a tight fit. How about two

[casper] 10 GbE ports on a BEE2

Hi all. Has anyone seen any problems when using 4 10 GbE ports on a single FPGA in the BEE2? We're having some problems where borph access from the control FPGA seems to lock up when we start up our designs. We've done some testing with hacked up designs, and we can only make it lock up (so

Re: [casper] 10 GbE ports on a BEE2

? We're about to try that now! Putting a few tens of clocks of delay in the chain. We can't fully serialize them for obvious reasons. We need at least 22.5 Gb/second out of the four ports. John Billy -Original Message- From: John Ford [mailto:jf...@nrao.edu] Sent: Wednesday

Re: [casper] 10 GbE ports on a BEE2

. That one can get *hot*. Thanks, Henry John Ford wrote: John, Coincidentally, I've found user 2 to be the worst of the bunch across the HCRO BEE2s by a good margin. Some variation between units, of course, but if it were me I'd try to run on a different slot (user 1 or 4) and see

Re: [casper] 10 GbE ports on a BEE2

We fixed it! (we think...) Hi all. Has anyone seen any problems when using 4 10 GbE ports on a single FPGA in the BEE2? We're having some problems where borph access from the control FPGA seems to lock up when we start up our designs. We've done some testing with hacked up designs, and

Re: [casper] ROACH updates

left the board on long enough. Tom On Mon, Feb 8, 2010 at 12:17 PM, John Ford jf...@nrao.edu wrote: Hi CASPERites with ROACH boards... Hi all. I wonder if these are still the recommended versions of everything. John Firmware and Software: == You might

Re: [casper] Which error to chase?

The 'dac' yellow block _does include a gateway internally. I believe the error is referring to the input data lines, but I haven't figured it out yet. But I may be barking up the wrong tree because I'm trying to control the DAC2x1000-16 (TI DAC5681) DAC - included with our ROACH - but the

[casper] Troubles setting up 10 GbE on Roach

HI all. We've been working with some code taken from the workshop tutorials, tutorial #2. We're trying to configure the 10 gbe block using the tut2.py example, but it doesn't actually configure anything. Once we run the configure script, the MAC address and IP address are the defaults that are

Re: [casper] Troubles setting up 10 GbE on Roach

process is running. If not, try'n start it manually from a roach ssh session: tgtap -b /proc/313/hw/ioreg/ten_Gbe_v2 -a 192.168.3.14 -t gbe0 -m 02:02:0A:00:00:82 -p 1 Good idea. I need a remedial course on the innards of the katcp system... John Jason On 01 Apr 2010, at 12:50, John

Re: [casper] Troubles setting up 10 GbE on Roach

Hi John, I had the same problem, but it was fixed after I updated my ROACH according to Jason's recommendations: http://www.mail-archive.com/casper@lists.berkeley.edu/msg01370.html We did check this, but maybe we missed something. We'll have another look. Also, if you just want to run

[casper] 6 GS/s Spectrometer

Hi all. Has anyone done a 6 GS/s spectrometer using 2 interleaved 3 GS/s ADC boards on a ROACH? I seem to recall someone doing something of the sort, but I don't recall any details. Thanks for any info! John

Re: [casper] mlib_devel_10_1 and simulink 7.4

Hi Dave It may be time to copy our libraries to an mlib_devel_11_1 revision and continue from there. ROACH2 uses Virtex6 and the 10.x and earlier tools do not support it. Disadvantages are that a lot of library maintainers will be working in mlib_devel_11_1 and bug fixes, changes etc may

Re: [casper] Issue with Fujitsu FPD-010R008-0E + FOC-CCxxxx

hi shilpa, the early CX4 10Gbe spec didn't supply optional power through the connector, and the first revision bee2's and ibob's we built didn't have powered connectors. but the spec changed several years ago, so i would have guessed that any modern NIC board would have powered

Re: [casper] 64-bit toolflow computer?

Hi Mandana Yes, things have definitely improved since the early Linux versions. I am now running Matlab R2008b and Xilinx 11.5 on RHEL5 Linux and am reasonably happy with it. Matlab still segfaults from time-to-time, but it's manageable. There are still a few quirks (eg Simulink doesn't

[casper] dual-boot ibob?

Hi all. Is it possible to put 2 personalities in an ibob, so that you can select the personality with a jumper or switch? John

Re: [casper] dual-boot ibob?

for our purposes. It's not too big a deal. I guess we need to move on to roach boards... John Thanks, Henry On 5/24/2010 11:39 AM, John Ford wrote: Hi all. Is it possible to put 2 personalities in an ibob, so that you can select the personality with a jumper or switch? John

Re: [casper] ibob lwip on 10.1

Thanks, Glenn, I have not added any PPC code and I am using the 10.1 tools installed at BWRC, so I assumed those were not the problem, but I just now built a simple test design with LWIP using the 10.1 tools and it worked! My guess is that sw registers and such cause the code to grow and

[casper] GPU Spectrometer

Hi all. I know folks are working on a hybrid spectrometer using roach/ibob and GPU's. I am in need of a 1M channel, 2 pol, 400 MHz spectrometer. Anyone offer up their design as a possibility? I think GUPPI maybe could do it, but I wonder if anyone else has gotten anything going. Or could you

Re: [casper] Fedora 13 FTW

We have two new lab machines running Fedora 13 64-bit. They both have Xilinx 11.4 (I think). One has Matlab 2009b and one has 2010a. Both seem to work (they build bof files OK). What's supposed to break? The sysgen/EDK stuff that uses perl scripts seems to be the weak(est?) link. From

Re: [casper] Simulink refuses to simulate/compile

So simulink keeps throwing the same error whenever I try to simulate or compile something: All Xilinx blocks must be contained in the same hierarchy as a system generator block. Googling gives me solutions that don't apply to me; same for the casper archive. The truly mysterious thing is that

Re: [casper] 10gbe switch

No. Believe it or not I spent a long time looking everywhere but the Casper wiki. Should have thought of that because that's where we got the Myricom card from. Those listed are at the higher end of the price range I've seen. Looks like ~$10k is the amount I should be prepared to spend.

Re: [casper] 10gbe switch

And don't forget that the switches that are XFP and SFP+ sometimes (usually?) don't include the optics for each port in the switch price. With CX4, all you need is a cable, if you're within a few meters. Yes - that list is years old. Those Fujitsu and HP switches have been tested with the

[casper] ADC block error

Hi all. We are trying to build models on 11.X for the roach, and they are failing. Here are the error messages: Yes, Master752 cat /tmp/jmf.txt Undefined function or method 'reuse_line' for input arguments of type 'char'. Error in 'test_jmf/adc083000x2/adc0_sim': Initialization commands

Re: [casper] ADC block error

Suraj, So from what I understand, anyone that wants to use the 3gsps adc, now needs to add line addpath('PATH_TO_MLIB_DEVEL/mlib_devel/casper_library/simulink_drawing_fns') to their startup.m script? Thanks. That fixed the problems. John Mark On Mon, Aug 9, 2010 at 2:43 PM,

Re: [casper] FFT on ROACH

Hi Andrea. This looks to me like some kind of mismatch in the libraries to me. I'm still using the subversion libraries, and they work fine. I'm going to move to GIT later today, and I'll try it there and see what happens. Do you still have your old subversion library installation you can try?

Re: [casper] FFT on ROACH

Hi all. For what it's worth, I just cloned the git tree from berkeley with: git clone git://casper.berkeley.edu/mlib_devel.git and it works fine, as far as a quick test. I instantiated an fft_biplex_real_2x block, and a fft_wideband_real, and they ran fine, and are OK under the mask. My

Re: [casper] Regarding data coming out of DRAM !!

CC: list... Hi Shrikanth, I haven't worked extensively with the DRAM, so i'm not sure why you would be getting these constant values. But I don't think half the data stored in memory should be a constant. Hi Srikanth. I wonder if this is because of DRAM size? It looks like an addressing

Re: [casper] Tut2 : Unable to transmit and receive Data from 10Gbe

On a related issue, does anybody have any ideas about my connected at 1.4Gbps message that I get when I plug ROACH 10GbE transmit into my Chelsio NIC? This seems to be a low-level issue, ie, there's no data being sent from ROACH, it's just the 10GbE yellow block (version 1) sitting there.

Re: [casper] 3 Gs/s adc board demo example

to work right. So you would run the board at twice the clock rate and demux the output samples on the FPGA in the simulink model before writing into dram? Thanks for the info! John -Suraj On Sep 29, 2010, at 5:51 PM, John Ford wrote: Hi all. Does anyone have a working example of using

Re: [casper] tcpborphserver version, ?wordwrite always returns zero

The startup scripts execute tcpborphserver2 by default. There's a bug in the scripts and it won't work unless it's in your path though (default is /usr/local/sbin, which is in the path, so no problems). /borph is not a standard path entry. Assuming you're running the default filesystem, You

Re: [casper] iBOB freezing

Hi everyone, I'm having a problem with an iBOB-based spectrometer. The design is a simple instrument used to measure neutral hydrogen for our undergraduate radio lab course. The spectra are transmitted over the 10/100 Mb ethernet using a modified main.c file where I read the channels out of

Re: [casper] iBOB freezing

Maybe it's overheating?  Do you have a little fan right on the FPGA? We've found that is necessary, even in a proper case.  We cut a hole in the lid and add a fan right over the chip. Interesting idea. I do have a small fan attached to the iBOB heat sink. It was running at the time. The

[casper] SPEAD examples?

Hi all. Do any of you have any xilinx designs that implement SPEAD protocol packets over 10 GbE? John

Re: [casper] SPEAD examples?

1min integrations before integer overflows. Note that our F engines expect KATADCs. You might need to recompile for iADC and update the config file as appropriate. Next year we will be adding beamformers to the X engines. Jason On 11/29/2010 8:12 AM, John Ford wrote: Hi all. Do any

Re: [casper] 10gbe switch

-)system, a full BOM must be used to make a meaningful comparison. Matt On Mon, 9 Aug 2010, John Ford wrote: And don't forget that the switches that are XFP and SFP+ sometimes (usually?) don't include the optics for each port in the switch price. With CX4, all you need is a cable, if you're

Re: [casper] 10gbe switch

pricing switches, or any sort of (sub-)system, a full BOM must be used to make a meaningful comparison. Matt On Mon, 9 Aug 2010, John Ford wrote: And don't forget that the switches that are XFP and SFP+ sometimes (usually?) don't include the optics for each port in the switch price

Re: [casper] 10gbe switch

the heck would you *not* have a heterogenous bunch of networks, transcievers, and media once the first working products were out for a few years? John Tom On Sat, Jan 29, 2011 at 9:57 AM, John Ford jf...@nrao.edu wrote: Can one use the zarlink (or something like it) on the ROACH end

Re: [casper] ROACH 2: it exists

That's awesome, David. Can't wait for the first R-II Spectrometer... We'll be waiting for more news! John Hi All. As you may know a new CASPER board is in the pipeline called ROACH 2. The design is centred around a Xilinx Virtex-6 SX475T FPGA. It should be, roughly, a 4-times improvement

Re: [casper] Fujitsu XG2000C / where to buy?

Hello, The 10GbE hardware page[1] has not been updated in a while (June 2009), and I wonder someone had the chance to test other kind of switches. For now, I think that the best choice is the Fujitsu XG2000C. Any recommendation of distributor/reseller in US? I have quotations right now

Re: [casper] Roach NFS root and static IP

Hello list, I'm trying to give a roach a static IP since dhcp is not allowed. There is http://gmrt.ncra.tifr.res.in/gmrt_hpage/sub_system/corr/Iru/Roach_BOOT_proc1_V3.pdf which says bootargs can have ip=ownip:gatewayip:netmask. So I'm trying this: setenv bootargs console=ttyS0,115200n8

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