hi rolando, if you can get your correlator to fit in a single fpga, that's easier than using multiple fpga's.
i think a people have successfully built an 8 input correlator using a single ibob and a pair of quad adc boards, so i think it's possible to fit this on one ibob, if you don't need very many frequency channels. if you can't fit your design on one ibob, then you could use a pair of ibob - there's no reason to use a switch to connect just two ibobs together. the new xilinx tools won't support the old virtex2 pro fpga that's on the ibob board, so you'll have to use old tools and old libraries. best wishes, dan On Sat, Aug 10, 2013 at 6:09 PM, Rolando Paz <flx...@gmail.com> wrote: > Hello CASPER > > I have some doubts, and I hope you can help me understand. > > Regarding correlators: > > 1. What is the reason of using one Roach (exclusively) for F engine, and > one Roach (exclusively) for the X Engine, through one switch? > > 2. Why can not use the latest libraries to program the FPGA IBOB card? > > 3. To build a correlator with IBOB's (8 input/two QuADC), what would be > the advantages of using one IBOB to F engine, and one IBOB for X engine? > Or just one IBOB is enough? > > Best Regards > > Rolando Paz >
