Re: [EXTERNAL] [casper] RE: quantum radar in astronomy

quadrature of a signal (without adding the half quantum of noise that comes from the so-called standard quantum limit for a phase-preserving amplifier) can be used to improve astronomical interferometry. If anyone has any ideas about that, please let me know. Best, Peter From: "salmon.na via c

Re:[casper] Re: Re: Re: snap with adc

DC2X550-12? As I see the ADC chip on ADC2X550-12 is : 1x TI ADS54RF63I , is this same with 2xADS54RF63? Thanks! Peter At 2018-10-17 23:45:43, "Rick Raffanti" wrote: The ADC2X550-12 is identical to the ADC portion of the "MKID_ADC_DAC", so if someone has a yellowblock th

[casper] adcx550-12

Dear All, Is someone familiar with adc2x550-12 ? Is there a yellow block of this kind of ADC for ROACH2 or SNAP platform? Thanks! Peter Niu -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this grou

Re: [casper] Asynchronous inputs?

Hi Adrian, There’s an open-source TtD converter design available at OHWR that might be of interest to you. The paper describing it is http://arxiv.org/pdf/1303.6840v1.pdf and the repository is at http://www.ohwr.org/projects/tdc-core/repository. Cheers, Peter From: casper-boun

Re: [casper] Issue Of The 1PPS Sync Singnal

Hi,Jonathan This is the problem,I am using a passive divider used for RF signals. I also find a link in casper website: https://casper.berkeley.edu/wiki/16_way_1PPS_driver The 1pps is called for a special divider.I will find one. Thanks for your help! Peter At 2015-01-30 10:29:48, "Jon

[casper] Issue Of The 1PPS Sync Singnal

work in our lab. (I thought the power divider need to be special) Do you have some good suggestions? Thanks for your help again! Peter

[casper] Question About The ADC Clock Frequency

bits/s )I don't know whether it is ok for the transition capability of the 10Gbe NICs(10Gbits/s). Could anyone help me please? Thanks! peter

Re: [casper] Question of chose Correlator Architecture

find on the websites? Best Regards! Peter -- 发自 Android 网易邮箱 On 2014-12-03 01:01 , David MacMahon Wrote: Hi, Peter, If you have enough ports on the switch then you certainly can configure things to send the packets directly from the ROACHs to the various X boxes.  The pre-built PAPER model will

[casper] How to use the EQ model in PAPER?

when I compiled,but bof file could not compiled.The matlab said it is a ADC block problem. Best wishes Peter

Re: [casper] Problem about the adc frequency in PAPER model.

netboot. The file like this: [peter@roachserver ~]$ file -L /srv/roach_boot/boot/uImage /srv/roach_boot/boot/uImage: u-boot legacy uImage, Linux-3.16.0-saska-03675-g1c70f, Linux/PowerPC, OS Kernel Image (gzip), 3034204 bytes, Tue Aug 26 14:54:14 2014, Load Address: 0x0070, Entry Point

Re: [casper] Problem about the adc frequency in PAPER model.

/temp2_input (No such file or directory) hwmon: create hwsensor could not open /sys/bus/i2c/devices/0-0018/temp3_input (No such file or directory) ... I am not sure whether it is a bug error,Any way it doesn't influence the netboot work. Now the version got through telnet like this: [pe

Re: [casper] Problem about the adc frequency in PAPER model.

e the uImage-r2borph3 In our PC, the information like this: [peter@roachserver ~]$ file -L /srv/roach_boot/boot/uImage /srv/roach_boot/boot/uImage: u-boot legacy uImage, Linux-3.7.0-rc2+, Linux/PowerPC, OS Kernel Image (gzip), 2231485 bytes, Mon Nov 19 15:30:35 2012, Load Address: 0x0050,

Re: [casper] Problem about the adc frequency in PAPER model.

idn't turn it up to 250Mhz when I run PAPER model. As the initialization shows: [peter@roachserver rb_test]$ ./paper_feng_init.rb roach1:0 initializing roach1 as FID 0 connecting to roach1 roach1 roach2_fengine app/lib revision 47c59e2/cd26bd2 disabling network transmission setting roach

Re: [casper] Problem with the overflow

ich can seen on https://casper.berkeley.edu/wiki/PAPER_Correlator_Manifest I will try the counter to control the overflow, Thanks for your warm help! Best Regards! peter At 2014-10-21 23:37:10, "Kujawski, Joseph" wrote: Peter, At one point during my testing of this system, I

Re: [casper] Problem with the overflow

nswer! Best Regards! peter At 2014-10-20 23:51:41, "Vertatschitsch, Laura E." wrote: Hey Peter, I'm bumping this up to the listserve. I am unfamiliar with PAPER. Perhaps someone with that project can help. If you haven't yet, you should complete Tutorial 2 with y

Re: [casper] Problem with the overflow

caused by the frequency problem or the Tx buffer size. Thanks for your help! Have a good night/day! peter At 2014-10-20 23:13:11, "Kujawski, Joseph" wrote: Peter, I am not sure if you are having the same problem that I was having, so I will give you some pointers on the d

[casper] The problem of setup and notstable roach2 board solved

lem I guess.But what's wrong with it?Can anyone give me some suggestions? Thanks for your help! peter

[casper] Problem with roach2 setup

ding: T T T T T T T T T T Retry count exceeded; starting again It tells the loading problem,and star again and again . Has anyone met this before? Best Regards! peter

[casper] The roach2 always appear disconnected after a few miniutes!

hat the LEDs of power and the NIC on roach2 are lighting,and the NIC‘s LED is also blinking! Has anyone met the same problem like this?Hope for your help! Best Regards! peter niu

[casper] Question about the use of aux_sync_out interface(J11)

hi all, Can someone tell me what is the use of the aux_sync_out ?This is the aux_sync_out cable from J11 on the Roach2.The J10 is for the aux_sync_in,all this from the all roach2s can be put into a sync singal like 1pps.But what is the J11 use for? Best regards! peter

Re: [casper] problem with the ruby code to control the Fengine

Hi, Dave, your solution is perfectly useful! I have done it as you said just now,and it works now,thank you very much! peter At 2014-08-29 00:28:48, "David MacMahon" wrote: >Hi, Peter, > >Yes, sorry, the instructions for building/installing the Ruby components

[casper] problem with the ruby code to control the Fengine

hi all, This is peter from NAOC,these days I come into trouble with the ruby code.I have build a model for Tianlai project based on the PAPER's roach model.Followed from[ https://casper.berkeley.edu/wiki/PAPER_Correlator_Manifest ],I have installed ruby and rubygems(V. 2.1.2)

Re: [casper] casper Digest, Vol 81, Issue 7

x27;s probabley a problem of the version of your EDK. good luck! peter niu At 2014-08-12 03:15:50, casper-requ...@lists.berkeley.edu wrote: >Send casper mailing list submissions to > casper@lists.berkeley.edu > >To subscribe or unsubscribe via the World Wide Web, visit

Re: [casper] running data problem of tutourial 2

the data have the same length but differnt contents.When I use python to configure the bof ,It comes the correct result. Thanks again for your care! peter niu At 2014-08-08 11:31:51, "peter" wrote: hi all, I faced a problem when I run the tut2a.bof of this tut2a.mdl whic

[casper] running data problem of tutourial 2

hi all, I faced a problem when I run the tut2a.bof of this tut2a.mdl which I build myself according to the tutorial2.There is some problem after I set all the register through telnet and run it.I can receive the same length of data with the sending.but the content is not correct.I at

[casper] MKID MUSIC boards loan?

t and thanks! Peter -- Peter Timbie Department of Physics 6209 Chamberlin Hall 1150 University Avenue UW-Madison Madison, WI 53706 608-890-2002 (office) 608-263-0361 (FAX) http://cmb.physics.wisc.edu

[casper] FW: [ee-doctorate] Oral Exam Announcement: Glen Gibb

Hi CASPERites, This work might be of interest to some of you working on packetized correlators. Cheers, Peter From: ee-doctorate-boun...@lists.stanford.edu [mailto:ee-doctorate-boun...@lists.stanford.edu] On Behalf Of Student Services Sent: Thursday, April 25, 2013 11:22 AM To: ee

[casper] FW: Reminder: Application Deadline April 12 for Dunlap Institute Summer School 2013

Hi all, I’m not involved with the summer school below, so I can’t vouch for it, but it looks like it might be of interest to some students in CASPER. Cheers, Peter From: physgrad2-boun...@lists.stanford.edu [mailto:physgrad2-boun...@lists.stanford.edu] On Behalf Of Maria Elizabeth

[casper] Best ADC card for low frequency response?

wiki yet. Thanks, Peter

[casper] KATCP MATLAB port?

Hi everyone, Has anyone ported KATCP for ROACH1 to MATLAB? If so, is the port freely available? Thanks, Peter

Re: [casper] Sample design for ROACH DRAM and CPU

of memory for the ROACH? If so, which ones do you recommend? (For example, would this work? http://www.newegg.com/Product/Product.aspx?Item=N82E16820139054 ) Thanks, Peter -Original Message- From: Laura Spitler [mailto:laura.spit...@gmail.com] Sent: Sunday, May 22, 2011 3:36 PM To: pe

Re: [casper] Sample design for ROACH DRAM and CPU

for the default DIMM modules that Digicom ships the boards with? Thanks in advance. Cheers, Peter -Original Message- From: Laura Spitler [mailto:laura.spit...@gmail.com] Sent: Friday, May 20, 2011 11:40 AM To: Peter Cc: casper@lists.berkeley.edu Subject: Re: [casper] Sample design for ROA

[casper] Sample design for ROACH DRAM and CPU

t in BORPH over the CPU interface? (I have seen Laura's DRAM demo design on the wiki, but as best I could tell that was not set up for CPU interfacing.) Thanks, Peter Message sent using GamCo WebMail

Re: [casper] corr Package compatibility with Windows

uot;, etc.) that has nothing to do with the correlator. The wrapper functions don't seem to have any dependencies within corr, which was really convenient. Cheers, Peter -Original Message- From: Jason Manley [mailto:jasonman...@gmail.com] Sent: Wednesday, April 27, 2011 3:21 AM T

[casper] corr Package compatibility with Windows

m the tar.gz at http://pypi.python.org/pypi/corr, which suggested that it is "OS Independent". Unfortunately, when trying to execute this sample script, I get the following error: Traceback (most recent call last): File "C:\LabControl\Peter\ROACH\adcsnap_updated.py&q

[casper] 550MSa/sec 12-bit ADC test design

o recompile it, rather than just use the existing "binary".) Thanks, Peter

[casper] ROACH 1 LED "mappings"

Hi, The on-board LEDs for ROACH 1 seem to be "mapped" to the "ROACH:led" GPIO block in Simulink, with bits 0-3 valid choices. What is the Simulink "mapping" for the LEDs that are connected to header cables that lead to 8 LEDs on the front of t

Re: [casper] Writing binary to BRAMs on roach?

binary data regardless of the machine the script is running on. > -Terry The astype() function can take care of that, though it is a bit less convenient. In [3]: str (numpy.ones (1).astype ('d').data) Out[4]: '?\xf0\x00\x00\x00\x00\x00\x00' Peter -- Peter Williams / pwilli.

Re: [casper] Writing binary to BRAMs on roach?

stion for some reason, it should be both clearer and faster than going through struct.pack. Cheers, Peter On Thu, 2011-01-06 at 16:44 -0500, Laura Spitler wrote: > Hi Jon, > > To elaborate on Mark's suggestion, I include a python function I've > written to do just what you're

Re: [casper] Green FFT fixed

more than a couple of weeks who sees a variable named "i" inside of a loop instantly knows its general purpose and behavior. If Matlab's implementation makes it so that you can't safely use this construct, you gotta do what you gotta do, but the problem is Matlab&#x

Re: [casper] 10 GBe Switch weirdness

Page 3 of Jason's switch memo at http://casper.berkeley.edu/memos/switch_configuration.pdf has the commands to enable jumbo frame on some of the Fujitsu switches. Peter -Original Message- From: casper-boun...@lists.berkeley.edu [mailto:casper-boun...@lists.berkeley.edu] On Behalf O

Re: [casper] Alternate Clock Source(s) for iBOBs?

instrument, so I ended up just using an iADC card purely to clock the board, which is a rather large waste. Peter -Original Message- From: casper-boun...@lists.berkeley.edu [mailto:casper-boun...@lists.berkeley.edu] On Behalf Of Andrew Siemion Sent: Thursday, July 09, 2009 5:43 AM To: Randy

Re: [casper] borph register value limit?

hat you should try writing in the binary mode because the ASCII mode is broken. Cheers, Peter -Original Message- From: casper-boun...@lists.berkeley.edu [mailto:casper-boun...@lists.berkeley.edu] On Behalf Of Oren Milgrome Sent: 20 August 2008 16:03 PM To: casper@lists.berkeley.edu Subje

Re: [casper] borph interface question

d variable type though. Peter -Original Message- From: casper-boun...@lists.berkeley.edu [mailto:casper-boun...@lists.berkeley.edu] On Behalf Of Jason Manley Sent: 31 March 2008 11:48 AM To: John Ford Cc: casper@lists.berkeley.edu Subject: Re: [casper] borph interface question Peter was h