Hi Martin, Thanks a lot. I am using gr-digital narrowband examples,with little bit of changes in the code.I am still not able to get full sample rate of 25MHz.At max i am getting 2MHz sample rate. I attached my code ,can you please let me know what might be the reason.Is it because of processing time or some other reason.
parameters i am passing from terminal sudo python test.py -f 5.825e9 --rx-freq 5.825e9 --tx-gain 31.5 --rx-gain 31.5 -m dbpsk -a="serial=ECR13W5UP" -r 1e6 if i try to change -r(bit rate) to >2e6 i am getting overflow. Thanks. On Fri, Mar 22, 2013 at 7:07 PM, Martin Luelf <m...@mluelf.de> wrote: > > Hi Martin, > > > > Can you please show me an example.. How to write connect statement? > > > > Thanks > > > > > > On Thu, Mar 21, 2013 at 6:26 PM, Martin Luelf <m...@mluelf.de> wrote: > > > >> > Hi, > >> > How to simultaneously transmit data to usrp and also store it in a > >> file.? > >> > I > >> > ran two separate flow graphs.But i want to have a sample rate of > >> 25Mhz.Is > >> > it possible to do it. > >> > > >> > I want the same thing in receiver side also(simultaneously detect the > >> > packet and store the data) > >> > > >> > I am using USRPN210 and Ubuntu 12.04 > >> > > >> > Thanks. > >> > >> Hi, > >> > >> you can connect a block's output to as many inputs as you want. So take > >> tha last block in your chain that generates your signal and connect it > >> both to a uhd sink (which will make the USRP transmitt the signal) and a > >> file sink (which will write the same samples to a file). > >> > >> Same goes for the receiver side. If you use GRC just add another > >> connection from a block's out port to another ones in port and the > >> output > >> will be send to both blocks. > >> > >> Yours > >> Martin > >> > > Hi, > > first of all please make sure that you reply to the list rather than to > the individual persons, or CC the list so that answers are also available > for anyone who might have a similar question in the future. > > The question how to do a block connect is confusing me a bit. Maybe there > is a misunderstanding? You should already have done block connections when > setting up your flowgraphs. > > Anyway what I mean is a standard connection of two GNURadio blocks, so in > GRC it might look like this (I know I am not an ASCII artist, sorry) > > |---->(Your signal processing block) > (UHD Source)-----| > |---->(File Sink) > > This should lead to python code like this > > ################################################## > # Blocks > ################################################## > self.uhd_usrp_source_0 = uhd.usrp_source(...) > self.yourblock_0 = yourmodule.yourblock(...) > self.file_sink_0 = gr.file_sink(gr.sizeof_gr_complex*1, ...) > ################################################## > # Connections > ################################################## > self.connect((self.uhd_usrp_source_0, 0), (self.file_sink_0, 0)) > self.connect((self.uhd_usrp_source_0, 0), (self.yourblock_0, 0)) > > Yours > Martin > >
test.py
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