Jason, Yes, it's quite a big thing, and it's not publicized at all. I had to dig through the DSP user guides to find it.
They have parallel FIR filters and parallel FFTs and all the good things that people used to have to write from scratch. I'd like to see CASPER adopt the new Xilinx tools as a way to build DSP gateware in the future, as the cellphone base station providers have finally caught up to radio astronomy in bandwidth. Having the telecom industry pushing the tools forward will get a lot accomplished, with much less effort expended by our gang. 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 8:08 AM To: Casper Lists <casper@lists.berkeley.edu> Subject: Re: [casper] FIR and decimating CIC filter 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 > > -- > You received this message because you are subscribed to the Google Groups > "casper@lists.berkeley.edu" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to casper+unsubscr...@lists.berkeley.edu. > To view this discussion on the web visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/C3DB0FD8-7B14-4232-B266-E7E17930AD89%40ska.ac.za. > > -- > You received this message because you are subscribed to the Google Groups > "casper@lists.berkeley.edu" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to casper+unsubscr...@lists.berkeley.edu. > To view this discussion on the web visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/SN6PR19MB2285A0EEE0EB7A6E8DC8359CE9FD0%40SN6PR19MB2285.namprd19.prod.outlook.com. -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/0A6BB15B-7ED3-4ABE-8C05-76D9A582F4E4%40ska.ac.za. -- You received this message because you are subscribed to the Google Groups "casper@lists.berkeley.edu" group. To unsubscribe from this group and stop receiving emails from it, send an email to casper+unsubscr...@lists.berkeley.edu. To view this discussion on the web visit https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/SN6PR19MB22859911CF8EB21740B2D22AE9FD0%40SN6PR19MB2285.namprd19.prod.outlook.com.
