Re: [casper] 38 PFB's on a virtex-6?

On 10 June 2013 17:07, David Saroff wrote: > Short of compiling a design, can the resource usage of a PFB yellow block > be seen? > If the data rate is some submultiple of the FPGA clock, say 50 MSPS and > 200 MHz is there a natural way to share resources? > > The question's context: > 38 dipol

Re: [casper] 38 PFB's on a virtex-6?

Hi David In terms of resource usage, I'd recommend having a read of this memo by Rurik Primiani on the topic: https://www.cfa.harvard.edu/twiki/pub/SMAwideband/MemoSeries/sma_wideband_utilization_1.pdf There is a pfb_fir_mux which I suspect will do what you're after. There's a copy in https://g

Re: [casper] 38 PFB's on a virtex-6?

Hi David, Traditionally, the CASPER libraries are much better at processing data many times the rate of the FPGA rather than the other way around. So while your suggestion of reusing multipliers is of course a good one, it's generally not well implemented in the CASPER libraries. You might consider

[casper] 38 PFB's on a virtex-6?

Short of compiling a design, can the resource usage of a PFB yellow block be seen? If the data rate is some submultiple of the FPGA clock, say 50 MSPS and 200 MHz is there a natural way to share resources? The question's context: 38 dipole antennae of the focal plane array for the green bank tele