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| author | Josh Blum <josh@joshknows.com> | 2010-10-22 16:59:12 -0700 |
|---|---|---|
| committer | Josh Blum <josh@joshknows.com> | 2010-10-22 16:59:12 -0700 |
| commit | 3974e544393bd5a720838cbf4790c532bca2aae4 (patch) | |
| tree | 7d992deb3836b20ad772fee12c535761b95b812d | |
| parent | e2f76bddae7845024056b479658651c6da2b0f4d (diff) | |
| download | uhd-3974e544393bd5a720838cbf4790c532bca2aae4.tar.gz uhd-3974e544393bd5a720838cbf4790c532bca2aae4.tar.bz2 uhd-3974e544393bd5a720838cbf4790c532bca2aae4.zip | |
dbsrx: reject asymmetric clocks (odd divisors)
| -rw-r--r-- | host/lib/usrp/dboard/db_dbsrx.cpp | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/host/lib/usrp/dboard/db_dbsrx.cpp b/host/lib/usrp/dboard/db_dbsrx.cpp index 0b8b4db83..aecd7249d 100644 --- a/host/lib/usrp/dboard/db_dbsrx.cpp +++ b/host/lib/usrp/dboard/db_dbsrx.cpp @@ -236,8 +236,10 @@ void dbsrx::set_lo_freq(double target_freq){ bool update_filter_settings = false; //choose refclock std::vector<double> clock_rates = this->get_iface()->get_clock_rates(dboard_iface::UNIT_RX); + const double max_clock_rate = std::sorted(clock_rates).back(); BOOST_FOREACH(ref_clock, std::reversed(std::sorted(clock_rates))){ if (ref_clock > 27.0e6) continue; + if (size_t(max_clock_rate/ref_clock)%2 == 1) continue; //reject asymmetric clocks (odd divisors) //choose m_divider such that filter tuning constraint is met m = 31; |