diff options
Diffstat (limited to 'host')
| -rw-r--r-- | host/lib/usrp/common/ad9361_driver/ad9361_device.cpp | 54 | ||||
| -rw-r--r-- | host/lib/usrp/common/ad9361_driver/ad9361_device.h | 4 |
2 files changed, 39 insertions, 19 deletions
diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp index 4ceccc0d9..0505343ab 100644 --- a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp +++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp @@ -96,6 +96,10 @@ const double ad9361_device_t::AD9361_CAL_VALID_WINDOW = 100e6; // Max bandwdith is due to filter rolloff in analog filter stage const double ad9361_device_t::AD9361_RECOMMENDED_MAX_BANDWIDTH = 56e6; +/* Startup RF frequencies */ +const double ad9361_device_t::DEFAULT_RX_FREQ = 800e6; +const double ad9361_device_t::DEFAULT_TX_FREQ = 850e6; + /* Program either the RX or TX FIR filter. * * The process is the same for both filters, but the function must be told @@ -1527,8 +1531,8 @@ void ad9361_device_t::initialize() _regs.bbftune_mode = 0x1e; /* Initialize private VRQ fields. */ - _rx_freq = 0.0; - _tx_freq = 0.0; + _rx_freq = DEFAULT_RX_FREQ; + _tx_freq = DEFAULT_TX_FREQ; _req_rx_freq = 0.0; _req_tx_freq = 0.0; _baseband_bw = 0.0; @@ -1548,7 +1552,6 @@ void ad9361_device_t::initialize() _rx2_agc_mode = GAIN_MODE_SLOW_AGC; _rx1_agc_enable = false; _rx2_agc_enable = false; - _last_calibration_freq = -AD9361_CAL_VALID_WINDOW; _rx_analog_bw = 0; _tx_analog_bw = 0; _rx_tia_lp_bw = 0; @@ -1700,8 +1703,8 @@ void ad9361_device_t::initialize() _calibrate_synth_charge_pumps(); - _tune_helper(RX, 800e6); - _tune_helper(TX, 850e6); + _tune_helper(RX, _rx_freq); + _tune_helper(TX, _tx_freq); _program_mixer_gm_subtable(); _program_gain_table(); @@ -1726,6 +1729,9 @@ void ad9361_device_t::initialize() if (_use_iq_balance_tracking) _configure_rx_iq_tracking(); + _last_rx_cal_freq = _rx_freq; + _last_tx_cal_freq = _tx_freq; + // cals done, set PPORT config switch (_client_params->get_digital_interface_mode()) { case AD9361_DDR_FDD_LVCMOS: { @@ -1861,6 +1867,9 @@ double ad9361_device_t::set_clock_rate(const double req_rate) if (_use_iq_balance_tracking) _configure_rx_iq_tracking(); + _last_rx_cal_freq = _rx_freq; + _last_tx_cal_freq = _tx_freq; + // cals done, set PPORT config switch (_client_params->get_digital_interface_mode()) { case AD9361_DDR_FDD_LVCMOS: { @@ -1976,17 +1985,18 @@ void ad9361_device_t::set_active_chains(bool tx1, bool tx2, bool rx1, bool rx2) double ad9361_device_t::tune(direction_t direction, const double value) { boost::lock_guard<boost::recursive_mutex> lock(_mutex); + double last_cal_freq; if (direction == RX) { if (freq_is_nearly_equal(value, _req_rx_freq)) { return _rx_freq; } - + last_cal_freq = _last_rx_cal_freq; } else if (direction == TX) { if (freq_is_nearly_equal(value, _req_tx_freq)) { return _tx_freq; } - + last_cal_freq = _last_tx_cal_freq; } else { throw uhd::runtime_error("[ad9361_device_t] [tune] INVALID_CODE_PATH"); } @@ -2011,21 +2021,29 @@ double ad9361_device_t::tune(direction_t direction, const double value) /* Update the gain settings. */ _reprogram_gains(); - /* Only run the following calibrations if we are more than 100MHz away - * from the previous calibration point. */ - if (std::abs(_last_calibration_freq - tune_freq) > AD9361_CAL_VALID_WINDOW) { + /* + * Only run the following calibrations if we are more than 100MHz away + * from the previous Tx or Rx calibration point. Leave out single shot + * Rx quadrature unless Rx quad-cal is disabled. + */ + if (std::abs(last_cal_freq - tune_freq) > AD9361_CAL_VALID_WINDOW) { /* Run the calibration algorithms. */ - _calibrate_rf_dc_offset(); - _calibrate_tx_quadrature(); + if (direction == RX) { + _calibrate_rf_dc_offset(); + if (!_use_iq_balance_tracking) + _calibrate_rx_quadrature(); + if (_use_dc_offset_tracking) + _configure_bb_dc_tracking(); + + _last_rx_cal_freq = tune_freq; + } else { + _calibrate_tx_quadrature(); + _last_tx_cal_freq = tune_freq; + } - if (_use_dc_offset_tracking) - _configure_bb_dc_tracking(); + /* Rx IQ tracking can be disabled on Rx or Tx re-calibration */ if (_use_iq_balance_tracking) _configure_rx_iq_tracking(); - else - _calibrate_rx_quadrature(); - - _last_calibration_freq = tune_freq; } /* If we were in the FDD state, return it now. */ diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.h b/host/lib/usrp/common/ad9361_driver/ad9361_device.h index f9bcd3a5e..efd0f017c 100644 --- a/host/lib/usrp/common/ad9361_driver/ad9361_device.h +++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.h @@ -157,6 +157,8 @@ public: static const double AD9361_MAX_CLOCK_RATE; static const double AD9361_CAL_VALID_WINDOW; static const double AD9361_RECOMMENDED_MAX_BANDWIDTH; + static const double DEFAULT_RX_FREQ; + static const double DEFAULT_TX_FREQ; private: //Methods void _program_fir_filter(direction_t direction, int num_taps, boost::uint16_t *coeffs); @@ -236,7 +238,7 @@ private: //Members ad9361_io::sptr _io_iface; //Intermediate state double _rx_freq, _tx_freq, _req_rx_freq, _req_tx_freq; - double _last_calibration_freq; + double _last_rx_cal_freq, _last_tx_cal_freq; double _rx_analog_bw, _tx_analog_bw, _rx_bb_lp_bw, _tx_bb_lp_bw; double _rx_tia_lp_bw, _tx_sec_lp_bw; //! Current baseband sampling rate (this is the actual rate the device is |