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authorJosh Blum <josh@joshknows.com>2012-05-18 11:50:32 -0700
committerJosh Blum <josh@joshknows.com>2012-05-18 11:50:32 -0700
commita5ffda85bc0c0606caa20a43a0b3d317ea778233 (patch)
tree7ab29781815c5589246ea0c7723b90c9e70c03bf /host/lib/usrp/usrp2
parent3804361215babcebb2a814cf29a315c5f5f3fd2f (diff)
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gpsdo: added "gpsdo" clock and time source options
When an on-board GPSDO is detected, "gpsdo" is added to the options.
Diffstat (limited to 'host/lib/usrp/usrp2')
-rw-r--r--host/lib/usrp/usrp2/usrp2_impl.cpp11
1 files changed, 7 insertions, 4 deletions
diff --git a/host/lib/usrp/usrp2/usrp2_impl.cpp b/host/lib/usrp/usrp2/usrp2_impl.cpp
index 604f2f832..3214975d1 100644
--- a/host/lib/usrp/usrp2/usrp2_impl.cpp
+++ b/host/lib/usrp/usrp2/usrp2_impl.cpp
@@ -604,7 +604,8 @@ usrp2_impl::usrp2_impl(const device_addr_t &_device_addr){
//setup reference source props
_tree->create<std::string>(mb_path / "clock_source/value")
.subscribe(boost::bind(&usrp2_impl::update_clock_source, this, mb, _1));
- static const std::vector<std::string> clock_sources = boost::assign::list_of("internal")("external")("mimo");
+ std::vector<std::string> clock_sources = boost::assign::list_of("internal")("external")("mimo");
+ if (_mbc[mb].gps and _mbc[mb].gps->gps_detected()) clock_sources.push_back("gpsdo");
_tree->create<std::vector<std::string> >(mb_path / "clock_source/options").set(clock_sources);
//plug timed commands into tree here
switch(_mbc[mb].iface->get_rev()){
@@ -690,10 +691,11 @@ usrp2_impl::usrp2_impl(const device_addr_t &_device_addr){
_tree->access<std::string>(root / "time_source/value").set("none");
//GPS installed: use external ref, time, and init time spec
- if (_mbc[mb].gps.get() and _mbc[mb].gps->gps_detected()){
+ if (_mbc[mb].gps and _mbc[mb].gps->gps_detected()){
+ _mbc[mb].time64->enable_gpsdo();
UHD_MSG(status) << "Setting references to the internal GPSDO" << std::endl;
- _tree->access<std::string>(root / "time_source/value").set("external");
- _tree->access<std::string>(root / "clock_source/value").set("external");
+ _tree->access<std::string>(root / "time_source/value").set("gpsdo");
+ _tree->access<std::string>(root / "clock_source/value").set("gpsdo");
UHD_MSG(status) << "Initializing time to the internal GPSDO" << std::endl;
_mbc[mb].time64->set_time_next_pps(time_spec_t(time_t(_mbc[mb].gps->get_sensor("gps_time").to_int()+1)));
}
@@ -771,6 +773,7 @@ void usrp2_impl::update_clock_source(const std::string &mb, const std::string &s
case usrp2_iface::USRP_N210_R4:
if (source == "internal") _mbc[mb].iface->poke32(U2_REG_MISC_CTRL_CLOCK, 0x12);
else if (source == "external") _mbc[mb].iface->poke32(U2_REG_MISC_CTRL_CLOCK, 0x1C);
+ else if (source == "gpsdo") _mbc[mb].iface->poke32(U2_REG_MISC_CTRL_CLOCK, 0x1C);
else if (source == "mimo") _mbc[mb].iface->poke32(U2_REG_MISC_CTRL_CLOCK, 0x15);
else throw uhd::value_error("unhandled clock configuration reference source: " + source);
_mbc[mb].clock->enable_external_ref(true); //USRP2P has an internal 10MHz TCXO