int uhd_device::set_rates(double tx_rate, double rx_rate)
{
double offset_limit = 1.0;
double tx_offset, rx_offset;
// B2XX is the only device where we set FPGA clocking
if (dev_type == B2XX) {
if (set_master_clk(B2XX_CLK_RT) < 0)
return -1;
}
// Set sample rates
try {
usrp_dev->set_tx_rate(tx_rate);
usrp_dev->set_rx_rate(rx_rate);
} catch (const std::exception &ex) {
LOG(ALERT) << "UHD rate setting failed";
LOG(ALERT) << ex.what();
return -1;
}
this->tx_rate = usrp_dev->get_tx_rate();
this->rx_rate = usrp_dev->get_rx_rate();
tx_offset = fabs(this->tx_rate - tx_rate);
rx_offset = fabs(this->rx_rate - rx_rate);
if ((tx_offset > offset_limit) || (rx_offset > offset_limit)) {
LOG(ALERT) << "Actual sample rate differs from desired rate";
LOG(ALERT) << "Tx/Rx (" << this->tx_rate << "/"
<< this->rx_rate << ")";
return -1;
}
return 0;
}
int setup_device(uhd::usrp::multi_usrp::sptr usrp, double rx_gain, double tx_gain, double freq, double rate){
//create a usrp device
std::cout << boost::format("Using Device: %s") % usrp->get_pp_string() << std::endl;
usrp->set_rx_rate(rate);
usrp->set_rx_freq(freq);
usrp->set_rx_gain(rx_gain);
usrp->set_tx_rate(rate);
usrp->set_tx_freq(freq);
usrp->set_tx_gain(tx_gain);
}
void init_usrp() {
cout << "Initial USRP" << endl;
usrp = uhd::usrp::multi_usrp::make(usrp_ip);
usrp->set_rx_rate(rate);
usrp->set_tx_rate(rate);
usrp->set_rx_freq(freq);
usrp->set_tx_freq(freq);
usrp->set_rx_gain(gain);
uhd::meta_range_t rx_range = usrp->get_rx_gain_range();
}
double uhd_device::set_rates(double rate)
{
double actual_rt, actual_clk_rt;
#if !defined(MULTICHAN) & !defined(RESAMPLE)
// Make sure we can set the master clock rate on this device
actual_clk_rt = usrp_dev->get_master_clock_rate();
if (actual_clk_rt > U1_DEFAULT_CLK_RT) {
LOG(ALERT) << "Cannot set clock rate on this device";
LOG(ALERT) << "Please compile with host resampling support";
return -1.0;
}
// Set master clock rate
usrp_dev->set_master_clock_rate(master_clk_rt);
actual_clk_rt = usrp_dev->get_master_clock_rate();
if (actual_clk_rt != master_clk_rt) {
LOG(ALERT) << "Failed to set master clock rate";
LOG(ALERT) << "Actual clock rate " << actual_clk_rt;
return -1.0;
}
#endif
// Set sample rates
usrp_dev->set_tx_rate(rate);
usrp_dev->set_rx_rate(rate);
actual_rt = usrp_dev->get_tx_rate();
if (actual_rt != rate) {
LOG(ALERT) << "Actual sample rate differs from desired rate";
LOG(ALERT) << actual_rt << "Hz";
return -1.0;
}
if (usrp_dev->get_rx_rate() != actual_rt) {
LOG(ALERT) << "Transmit and receive sample rates do not match";
return -1.0;
}
return actual_rt;
}
int setupUSRP( uhd::usrp::multi_usrp::sptr& usrp,
const float center_freq,
const float sample_rate,
const int rx_gain,
const char* dev_addr)
{
//Initialize the USRP to the specified address
usrp = uhd::usrp::multi_usrp::make(string(dev_addr));
//Define the clock reference
usrp->set_clock_source(__USRP_CLK_SRC);
//Output some useful information
cout << "Using the following USRP device: " << endl
<< usrp->get_pp_string() << endl;
//Try setting the sample rate. If the rate we get is not the same as the
//requested rate, we will return with a warning to ensure the user is aware
//of the actual sample rate
usrp->set_rx_rate( sample_rate );
if( usrp->get_rx_rate() != sample_rate )
{
ios_base::fmtflags originalFlags = cout.flags();
cout.setf(ios_base::left,ios_base::floatfield);
cout.precision(15);
cout << "WARNING! Requested rate = " << sample_rate << endl
<< "WARNING! Actual rate = " << usrp->get_rx_rate() << endl;
cout.setf(originalFlags);
}
//Try setting the center frequency. Like above, if we get a different
//frequency than the one we're requesting, we will spit out a warning for the
//user
usrp->set_rx_freq( center_freq );
if( usrp->get_rx_freq() != center_freq )
{
ios_base::fmtflags originalFlags = cout.flags();
cout.setf(ios_base::left,ios_base::floatfield);
cout.precision(15);
cout << "WARNING! Requested frequency = " << center_freq << endl
<< "WARNING! Actual frequency = " << usrp->get_rx_freq() << endl;
cout.setf(originalFlags);
}
//Set the RX gain. There really shouldn't be any problems here, but the user
//might request something silly like 50dB of gain when the module can't
//accomodate. So we'll perform a similar check here.
usrp->set_rx_gain( rx_gain );
if( usrp->get_rx_gain() != rx_gain )
{
cout << "WARNING! Requested gain = " << rx_gain << endl
<< "WARNING! Actual gain = " << usrp->get_rx_gain() << endl;
}
//Ensure the LO locked
vector<string> sensor_names;
sensor_names = usrp->get_rx_sensor_names(0);
if( find(sensor_names.begin(), sensor_names.end(), "lo_locked")
!= sensor_names.end() )
{
uhd::sensor_value_t lo_locked = usrp->get_rx_sensor("lo_locked",0);
cout << "Checking RX: " << endl
<< lo_locked.to_pp_string() << endl;
UHD_ASSERT_THROW(lo_locked.to_bool()); //We should probably catch this
}
return 1;
}
/***********************************************************************
* Set standard defaults for devices
**********************************************************************/
static inline void set_optimum_defaults(uhd::usrp::multi_usrp::sptr usrp){
uhd::property_tree::sptr tree = usrp->get_device()->get_tree();
// Will work on 1st subdev, top-level must make sure it's the right one
uhd::usrp::subdev_spec_t subdev_spec = usrp->get_rx_subdev_spec();
const uhd::fs_path mb_path = "/mboards/0";
const std::string mb_name = tree->access<std::string>(mb_path / "name").get();
if (mb_name.find("USRP2") != std::string::npos or mb_name.find("N200") != std::string::npos or mb_name.find("N210") != std::string::npos or mb_name.find("X300") != std::string::npos or mb_name.find("X310") != std::string::npos){
usrp->set_tx_rate(12.5e6);
usrp->set_rx_rate(12.5e6);
}
else if (mb_name.find("B100") != std::string::npos){
usrp->set_tx_rate(4e6);
usrp->set_rx_rate(4e6);
}
else if (mb_name.find("E100") != std::string::npos or mb_name.find("E110") != std::string::npos){
usrp->set_tx_rate(4e6);
usrp->set_rx_rate(8e6);
}
else{
throw std::runtime_error("self-calibration is not supported for this hardware");
}
const uhd::fs_path tx_fe_path = "/mboards/0/dboards/" + subdev_spec[0].db_name + "/tx_frontends/0";
const std::string tx_name = tree->access<std::string>(tx_fe_path / "name").get();
if (tx_name.find("WBX") != std::string::npos){
usrp->set_tx_gain(0);
}
else if (tx_name.find("SBX") != std::string::npos){
usrp->set_tx_gain(0);
}
else if (tx_name.find("CBX") != std::string::npos){
usrp->set_tx_gain(0);
}
else if (tx_name.find("RFX") != std::string::npos){
usrp->set_tx_gain(0);
}
else{
throw std::runtime_error("self-calibration is not supported for this hardware");
}
const uhd::fs_path rx_fe_path = "/mboards/0/dboards/" + subdev_spec[0].db_name + "/rx_frontends/0";
const std::string rx_name = tree->access<std::string>(rx_fe_path / "name").get();
if (rx_name.find("WBX") != std::string::npos){
usrp->set_rx_gain(25);
}
else if (rx_name.find("SBX") != std::string::npos){
usrp->set_rx_gain(25);
}
else if (rx_name.find("CBX") != std::string::npos){
usrp->set_rx_gain(25);
}
else if (rx_name.find("RFX") != std::string::npos){
usrp->set_rx_gain(25);
}
else{
throw std::runtime_error("self-calibration is not supported for this hardware");
}
}