> 1) uO means usrp overrun, i.e. the usrp had more data to send, but the > host computer was not fast enough to accept it and calculate it, so it > was dropped. setting the decimation rate to its maximum value does > decrease the processing load on your cpu, but on old systems or very > "heavy" flowgraphs your cpu might still be overloaded. try closing any > other programs running (e.g. don't watch youtube videos at the same > time) > > 2) no, the decimation and interpolation rates don't need to be equal, > but their combined values need to not saturate the usb 2.0 bus > > > > Dimitris Symeonidis > "If you think you're too small to make a difference, try sleeping with > a mosquito!" - Amnesty International > > > > On Mon, Apr 6, 2009 at 20:14, <[email protected]> wrote: >> Hi, >> >> I have a few basic USRP questions. I have gone through the mail archive >> and USRP wiki page but could not find answer to them. >> >> 1) When I run my scripts I sometimes get "uOuOuO" message. I read in the >> archives that I need to increase the decimation rate but I have already >> set it to the maximum limit of 256. What should I do? Also, why do I not >> get the message all the time? >> >> 2) When configuring the USRP Tx and Rx, is it necessary that the >> interpolation and decimation rates should be the same? >> >> thanks and regards, >> >> -Sumit Satarkar >> >> >> _______________________________________________ >> Discuss-gnuradio mailing list >> [email protected] >> http://lists.gnu.org/mailman/listinfo/discuss-gnuradio >> >
thanks Dimitris! there is nothing else going on the host. Should I just reduce the data rate? Currently it is 32kbps. and how do I find out that the USB bus is getting saturated? Sumit _______________________________________________ Discuss-gnuradio mailing list [email protected] http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
