Engin Karabulut wrote: > hi all, > > I want to record for example a fir filter output > to file when I want. I have develop basic application, > given some parts below > > ..... > ..... > def start_record_samples (self): > self.stop() > self.utfil = gr.file_sink(gr.sizeof_float,"capture.cfile") > self.connect(self.chan_filt,self.utfil) > self.start() > > def stop_record_samples (self): > self.stop() > self.disconnect(self.chan_filt,self.utfil) > self.start() > > ..... > ..... > > these functions are controlled with two buttons. "start" button calls > start_record_samples and "stop" button calls stop_record_samples. > > but they don't work properly. > > start_record_samples gives error given below, > > Traceback (most recent call last): > File "/usr/local/lib/python2.5/site-packages/gnuradio/wxgui/form.py", > line > 33, in <lambda> > wx.EVT_BUTTON(parent, new_id, lambda evt: callback()) > File "usrp_snby_rcv.py", line 219, in record_samples > self.start_record_samples() > File "usrp_snby_rcv.py", line 227, in start_record_samples > self.start() > File "/usr/local/lib/python2.5/site-packages/gnuradio/gr/top_block.py", > line 72, in start > self._tb.start() > File "/usr/local/lib/python2.5/site- > packages/gnuradio/gr/gnuradio_swig_py_runtime.py", line 1411, in start > return _gnuradio_swig_py_runtime.gr_top_block_sptr_start(*args, > **kwargs) > RuntimeError: top_block::start: top block already running or wait() not > called after previous stop() > > how can I add new block temporarily to a running gr_top_block scheduler? > because after stop it can't start anymore. > > regards.
I have found the solution from gr wiki. I just add self.wait() before self.start and everything is fine now. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
