Re: [casper] Hello CASPER

2013-08-11 Thread John Ford
Hi rolando. I'll add a little to what Dan said in his mail. 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

Re: [casper] Hello CASPER

2013-08-11 Thread Rolando Paz
Thank you very much for the explanation, Dan and John. I remember a CASPER video, where showed that everything worked fine with one IBOB, 8 inputs and 2K channels. I will try this setting :-) Best Regards Rolando Paz 2013/8/11 John Ford jf...@nrao.edu Hi rolando. I'll add a little to what

[casper] Hello CASPER

2013-08-10 Thread Rolando Paz
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

Re: [casper] Hello CASPER

2013-08-10 Thread Dan Werthimer
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