Thank you Eric, I got it! ;)
2009/1/8 Eric Blossom <e...@comsec.com> > On Thu, Jan 08, 2009 at 10:25:34AM -0200, Ronaldo Nunez wrote: > > Sorry my ignorance, I revised my question and i was not clearly... > > > > There is a condition on line 1008 in usrp_standard.cc code. That > condition > > limits the LO frequency (see my schematic) to the maximum of 44 MHz, OK? > > No, not OK. > > The code you are looking at is the code that tunes only the digital > upconverter. Please read the USRP FAQ and take a look at the > high-level tune method in usrp_standard.h > > /*! > * \brief High-level "tune" method. Works for the single channel case. > * > * This method adjusts both the daughterboard LO and the DUC so that > * DC in the complex baseband samples ends up at RF target_freq. > * > * \param chan which DUC channel we're controlling (usually == > which_side). > * \param db the daughterboard we're controlling. > * \param target_freq the RF frequency we want our baseband translated to. > * \param[out] tune_result details how the hardware was configured. > * > * \returns true iff everything was successful. > */ > bool tune(int chan, db_base_sptr db, double target_freq, usrp_tune_result > *result); > > > Eric > -- __________________________________ Ronaldo A. Viera Nunez Acadêmico/Engenharia Elétrica Universidade Federal de Santa Maria Santa Maria - RS - Brasil
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