Hello, I have once post this message. Please help me cause its very urgent.
I now have a project with the following specifications: I need to send 2 input-signals parallel over USRP, then find out the zero-crossings (time) of each signal so I can calculate the phase difference of them. The 1st signal S1 is up to 1MHz The 2st signal S2 is about 50 Hz 1. Sending 2 input signals parallel to USRP: My idea is: - Sending these 2 Signals in 2 separate daughter-boards LFRX - (Or) Put them two on only one LFRX through the 2 SMA connectors. - How about using digital I/O pins ? - What is the maximum voltage can I feed the daughter-board through SMA ? - Will the inputs be synchronously sent and sampled ? 2. Zero-crossings detection: - How can I find out the zero-crossing time, esp. of the signal S2 ? Thanks in advance for your reply. Phong -- View this message in context: http://old.nabble.com/zero-crossing-detection.-parallel-inputs-to-USRP-tp29386998p29386998.html Sent from the GnuRadio mailing list archive at Nabble.com. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
