Re: [casper] ROACH memory-mapped IO

2012-08-29 Thread Jason Manley
On 29 Aug 2012, at 02:44, Adam Barta wrote: > You could also try an ssh port forward to the katcp port ssh -vNL > 7147:roach:7147 gateway > Then use the katcp interface to read / write the registers. There is a > katcp_wrapper.py in the corr library I would like to re-inforce this suggestion if

Re: [casper] ROACH memory-mapped IO

2012-08-29 Thread Tom Kuiper
Thanks for that, Jason! It is very timely. The reason I went down this path is because I have a spectrometer design, by Joseph Trinh, which takes a slightly different approach to bram access and so I could not use the katcp_wrapper which I'd been using with your 16K spectrometer. He'd offere

[casper] ROACH 2 Mechanical Drawing and CAD

2012-08-29 Thread Vaughan Moss
ROACH 2 Mechanical Drawing: https://github.com/ska-sa/roach2_chassis_design/blob/R2_rev_6/ROACH_2_CAD/roach_2_hardware.pdf ROACH 2 CAD: https://github.com/ska-sa/roach2_chassis_design/blob/R2_rev_6/ROACH_2_CAD/roach2_asm.stp Regards Vaughan

Re: [casper] ROACH memory-mapped IO

2012-08-29 Thread Jason Manley
If you take a look at the pocket correlator design (tutorial 4), you'll find that it does four inputs of 400MHz bandwidth (800Msps). I think it has 4-tap PFBs with 1024 channels by default, which fits into a ROACH-1. If you forfeit two of the inputs, you should be able to get at least twice the

Re: [casper] ROACH memory-mapped IO

2012-08-29 Thread Tom Kuiper
On 08/29/2012 02:30 AM, Jason Manley wrote: If you take a look at the pocket correlator design (tutorial 4), you'll find that it does four inputs of 400MHz bandwidth (800Msps). I think it has 4-tap PFBs with 1024 channels by default, which fits into a ROACH-1. If you forfeit two of the inputs,

Re: [casper] ROACH memory-mapped IO

2012-08-29 Thread Jason Manley
Trying to clock the FPGA at 320MHz will be tricky, so I'd suggest just demux again and run it at 160MHz. I believe that you should have enough resources to do this with at least a 4-tap PFB and 1024 channels. 2-inputs at 800MHz is equivalent to 4-inputs at 400MHz in terms of processing load. The

Re: [casper] ROACH memory-mapped IO

2012-08-29 Thread Tom Kuiper
On 08/29/2012 02:47 AM, Jason Manley wrote: Trying to clock the FPGA at 320MHz will be tricky, so I'd suggest just demux again and run it at 160MHz. I believe that you should have enough resources to do this with at least a 4-tap PFB and 1024 channels. 2-inputs at 800MHz is equivalent to 4-inp

Re: [casper] Roach 2 mechanical drawings?

2012-08-29 Thread Wesley New
These should help ROACH 2 Mechanical Drawing: https://github.com/ska-sa/roach2_chassis_design/blob/R2_rev_6/ROACH_2_CAD/roach_2_hardware.pdf ROACH 2 CAD: https://github.com/ska-sa/roach2_chassis_design/blob/R2_rev_6/ROACH_2_CAD/roach2_asm.stp ROACH 2 PCB: https://github.com/ska-sa/roach2_hardwar

Re: [casper] ROACH memory-mapped IO

2012-08-29 Thread Dan Werthimer
hi tom, you might consider using the vegas mode 1 spectrometer design: 1024 channels, dual pol, 1.5 GHz bandwidth (3 Gsps), full stokes, roach I, 4 tap polyphase, best wishes, dan On Wed, Aug 29, 2012 at 2:32 AM, Tom Kuiper wrote: > On 08/29/2012 02:30 AM, Jason Manley wrote: > >> If you tak

[casper] {SIZE!} Re: casper Digest, Vol 57, Issue 32

2012-08-29 Thread Jason Castro
9724 bytes Message is too large: 196979724 bytes Note to Help Desk: Look on the MailScanner in /export/spldsk/MailScanner/quarantine/20120829 (message q7TEX83v005264). -- Postmaster NRAO Charlottesville https://staff.nrao.edu/goldbook/MAIL/spam.shtml For all your IT requirements v

Re: [casper] casper Digest, Vol 57, Issue 32

2012-08-29 Thread Gerry Harp
Hi Jason Looks like a nice app. Gerry On 8/29/2012 8:32 AM, Jason Castro wrote: This may be helpful to someone. I've written a LabVIEW KATCP - interface. I attached a screen shot. Like everything, it's a work in progress, but it has a lot of basic functionality that I find useful. You c