B200/E300: Set time sync on clock rate change to current time of first radio

2 files changed, 10 insertions, 4 deletions

diff --git a/host/lib/usrp/b200/b200_impl.cpp b/host/lib/usrp/b200/b200_impl.cpp
index dae90bbfe..9a2c65680 100644
--- a/host/lib/usrp/b200/b200_impl.cpp
+++ b/host/lib/usrp/b200/b200_impl.cpp
@@ -624,11 +624,11 @@ b200_impl::b200_impl(const uhd::device_addr_t& device_addr, usb_device_handle::s
     //register time now and pps onto available radio cores
     _tree->create<time_spec_t>(mb_path / "time" / "now")
         .publish(boost::bind(&time_core_3000::get_time_now, _radio_perifs[0].time64))
-        .subscribe(boost::bind(&b200_impl::sync_times, this, _1))
+        .subscribe(boost::bind(&b200_impl::set_time, this, _1))
         .set(0.0);
     //re-sync the times when the tick rate changes
     _tree->access<double>(mb_path / "tick_rate")
-        .subscribe(boost::bind(&b200_impl::sync_times, this, _radio_perifs[0].time64->get_time_now()));
+        .subscribe(boost::bind(&b200_impl::sync_times, this));
     _tree->create<time_spec_t>(mb_path / "time" / "pps")
         .publish(boost::bind(&time_core_3000::get_time_last_pps, _radio_perifs[0].time64));
     BOOST_FOREACH(radio_perifs_t &perif, _radio_perifs)
@@ -1082,7 +1082,7 @@ void b200_impl::update_time_source(const std::string &source)
     }
 }
 
-void b200_impl::sync_times(const uhd::time_spec_t& t)
+void b200_impl::set_time(const uhd::time_spec_t& t)
 {
     BOOST_FOREACH(radio_perifs_t &perif, _radio_perifs)
         perif.time64->set_time_sync(t);
@@ -1090,6 +1090,11 @@ void b200_impl::sync_times(const uhd::time_spec_t& t)
     _local_ctrl->poke32(TOREG(SR_CORE_SYNC), _time_source);
 }
 
+void b200_impl::sync_times()
+{
+    set_time(_radio_perifs[0].time64->get_time_now());
+}
+
 /***********************************************************************
  * GPIO setup
  **********************************************************************/
diff --git a/host/lib/usrp/b200/b200_impl.hpp b/host/lib/usrp/b200/b200_impl.hpp
index f052c55e6..4ddb29f0b 100644
--- a/host/lib/usrp/b200/b200_impl.hpp
+++ b/host/lib/usrp/b200/b200_impl.hpp
@@ -167,7 +167,8 @@ private:
     uhd::usrp::subdev_spec_t coerce_subdev_spec(const uhd::usrp::subdev_spec_t &);
     void update_subdev_spec(const std::string &tx_rx, const uhd::usrp::subdev_spec_t &);
     void update_time_source(const std::string &);
-    void sync_times(const uhd::time_spec_t&);
+    void set_time(const uhd::time_spec_t&);
+    void sync_times(void);
     void update_clock_source(const std::string &);
     void update_bandsel(const std::string& which, double freq);
     void update_antenna_sel(const size_t which, const std::string &ant);