Hi Monika. Remember that the Virtual Source's output is just the input of the Virtual Sink with the same ID.
It is a convenient way of making a nicer and tidier graph without so many "wires". I use them also as a "signal copier": (something X) ---> Virtual Sink ID 1 Virtual Source ID 1 ----> one copy of X -----> another copy of X ------> etc [...] ------> etc This way I don't have to remake all the connections when I change X. Bye. 2015-06-03 9:18 GMT-03:00 Marcus Müller <[email protected]>: > That's because you made a loop, and that's illegal; why do you feed the > output of the OFDM CP back into the carrier allocator? > > Best regards, > Marcus > > > On 06/03/2015 12:37 PM, monika bansal wrote: > > hii > i made the following Flowgraph : > > Virtual Source -----> OFDM Carrier allocator --------> FFT -------> OFDM > Cyclic Prefixer -----> Virtual Sink > > When i am executing the flowgraph it says -- "runtime error : flowgraph has > loops ! ". > What should i do ? > > On Wed, Jun 3, 2015 at 3:26 PM, monika bansal <[email protected]> wrote: >> >> Thanks Marcus ... >> >> On Wed, Jun 3, 2015 at 3:23 PM, Marcus Müller <[email protected]> >> wrote: >>> >>> That's totally up to you -- any text that you can remember. >>> You'd put the same value into the Virtual Sink block's stream ID, so that >>> they are connected. >>> >>> On 06/03/2015 11:28 AM, monika bansal wrote: >>> >>> Hii >>> What should i input in the "stream ID" field of Virtual Source block? >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> [email protected] >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >>> >>> >>> _______________________________________________ >>> Discuss-gnuradio mailing list >>> [email protected] >>> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio >>> >> > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio > _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
