jason,

some info on SSR on pages 114-117 of:

https://www.xilinx.com/support/documentation/sw_manuals/xilinx2018_3/ug897-vivado-sysgen-user.pdf


dan

Dan Werthimer
Marilyn and Watson Alberts Chair
Astronomy Dept and Space Sciences Lab
University of California, Berkeley


On Thu, Jun 27, 2019 at 8:07 AM Jason Manley <jman...@ska.ac.za> wrote:

> That's an interesting development that I wasn't aware of! As it turns out,
> we're using Vivado 2018.2, but this might be a strong motivator to switch
> to the newer tools.
>
> Thanks for the heads-up. I'll definitely look into it.
>
> Jason
>
>
> > On 27 Jun 2019, at 17:05, Forbes, David C - (dforbes) <
> dfor...@email.arizona.edu> wrote:
> >
> > Jason,
> >
> > Xilinx has started to offer an SSR (Super Sample Rate) DSP library with
> Vivado 2018.3, which CASPER would do well to migrate towards. But if you're
> stuck in the old toolchain, then I can't help you.
> >
> >
> > David Forbes
> > Arizona Radio Observatory
> > Tucson, AZ
> > W: 520-626-1361  C: 520-989-1491
> >
> > -----Original Message-----
> > From: Jason Manley <jman...@ska.ac.za>
> > Sent: Thursday, June 27, 2019 7:51 AM
> > To: Casper Lists <casper@lists.berkeley.edu>
> > Subject: [casper] FIR and decimating CIC filter
> >
> > Hi CASPERites
> >
> > Has anyone implemented a decimating CIC filter on a CASPER platform? How
> 'bout a conventional IIR or FIR filter? We're after ones that accept
> parallel input samples; the Xilinx one doesn't seem to do wideband signals.
> >
> > We're looking at options for a new digital downconverter. Please let me
> know if you've got something you could share with us to use. If not, we'll
> have to start modding the PFB_FIR and existing DDC library blocks for our
> needs.
> >
> > Jason Manley
> > DSP Manager
> > SKA-SA
> >
> > Cell: +27 82 662 7726
> > Work: +27 21 506 7300
> >
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