diff options
| -rw-r--r-- | host/examples/rx_multi_samples.cpp | 20 |
1 files changed, 18 insertions, 2 deletions
diff --git a/host/examples/rx_multi_samples.cpp b/host/examples/rx_multi_samples.cpp index 08b2d399d..8f6d7c939 100644 --- a/host/examples/rx_multi_samples.cpp +++ b/host/examples/rx_multi_samples.cpp @@ -43,7 +43,7 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ ("secs", po::value<double>(&seconds_in_future)->default_value(1.5), "number of seconds in the future to receive") ("nsamps", po::value<size_t>(&total_num_samps)->default_value(10000), "total number of samples to receive") ("rate", po::value<double>(&rate)->default_value(100e6/16), "rate of incoming samples") - ("sync", po::value<std::string>(&sync)->default_value("now"), "synchronization method: now, pps") + ("sync", po::value<std::string>(&sync)->default_value("now"), "synchronization method: now, pps, mimo") ("subdev", po::value<std::string>(&subdev), "subdev spec (homogeneous across motherboards)") ("dilv", "specify to disable inner-loop verbose") ; @@ -87,13 +87,29 @@ int UHD_SAFE_MAIN(int argc, char *argv[]){ std::cout << boost::format("Setting device timestamp to 0...") << std::endl; if (sync == "now"){ + //This is not a true time lock, the devices will be off by a few RTT. + //Rather, this is just to allow for demonstration of the code below. usrp->set_time_now(uhd::time_spec_t(0.0)); - boost::this_thread::sleep(boost::posix_time::milliseconds(50)); //wait for mimo cable time sync } else if (sync == "pps"){ usrp->set_time_unknown_pps(uhd::time_spec_t(0.0)); boost::this_thread::sleep(boost::posix_time::seconds(1)); //wait for pps sync pulse } + else if (sync == "mimo"){ + UHD_ASSERT_THROW(usrp->get_num_mboards() == 2); + + //make mboard 1 a slave over the MIMO Cable + uhd::clock_config_t clock_config; + clock_config.ref_source = uhd::clock_config_t::REF_MIMO; + clock_config.pps_source = uhd::clock_config_t::PPS_MIMO; + usrp->set_clock_config(clock_config, 1); + + //set time on the master (mboard 0) + usrp->set_time_now(uhd::time_spec_t(0.0), 0); + + //sleep a bit while the slave locks its time to the master + boost::this_thread::sleep(boost::posix_time::milliseconds(100)); + } //setup streaming std::cout << std::endl; |