diff options
Diffstat (limited to 'host')
| -rw-r--r-- | host/CMakeLists.txt | 2 | ||||
| -rw-r--r-- | host/docs/build.rst | 2 | ||||
| -rw-r--r-- | host/docs/dboards.rst | 29 | ||||
| -rw-r--r-- | host/include/uhd/usrp/mimo_usrp.hpp | 2 | ||||
| -rw-r--r-- | host/include/uhd/usrp/simple_usrp.hpp | 2 | ||||
| -rw-r--r-- | host/include/uhd/usrp/single_usrp.hpp | 2 | ||||
| -rw-r--r-- | host/lib/usrp/dboard/db_dbsrx.cpp | 22 | ||||
| -rw-r--r-- | host/lib/usrp/dboard/db_xcvr2450.cpp | 147 | ||||
| -rw-r--r-- | host/lib/usrp/mimo_usrp.cpp | 4 | ||||
| -rw-r--r-- | host/lib/usrp/simple_usrp.cpp | 4 | ||||
| -rw-r--r-- | host/lib/usrp/single_usrp.cpp | 4 |
11 files changed, 196 insertions, 24 deletions
diff --git a/host/CMakeLists.txt b/host/CMakeLists.txt index 566bfd538..a60eed0a5 100644 --- a/host/CMakeLists.txt +++ b/host/CMakeLists.txt @@ -84,7 +84,7 @@ IF(UNIX AND EXISTS "/usr/lib64") LIST(APPEND BOOST_LIBRARYDIR "/usr/lib64") #fedora 64-bit fix ENDIF(UNIX AND EXISTS "/usr/lib64") -SET(Boost_ADDITIONAL_VERSIONS "1.42.0" "1.42" "1.43.0" "1.43") +SET(Boost_ADDITIONAL_VERSIONS "1.42.0" "1.42" "1.43.0" "1.43" "1.44.0" "1.44") FIND_PACKAGE(Boost ${BOOST_MIN_VERSION} REQUIRED COMPONENTS date_time filesystem diff --git a/host/docs/build.rst b/host/docs/build.rst index 9cf37db4a..a41ce8331 100644 --- a/host/docs/build.rst +++ b/host/docs/build.rst @@ -47,7 +47,7 @@ CMake Boost ^^^^^^^^^^^^^^^^ * **Purpose:** C++ library -* **Version:** at least 3.6 unix, at least 4.0 windows +* **Version:** at least 1.36 unix, at least 1.40 windows * **Usage:** build time + run time (required) * **Download URL:** http://www.boost.org/users/download/ * **Download URL (windows installer):** http://www.boostpro.com/download diff --git a/host/docs/dboards.rst b/host/docs/dboards.rst index 4ad724c82..080117651 100644 --- a/host/docs/dboards.rst +++ b/host/docs/dboards.rst @@ -49,10 +49,12 @@ Receive Antennas: **J3** The board has no user selectable antenna setting -Recieve Gains: +Receive Gains: **GC1**, Range: 0-56dB **GC2**, Range: 0-24dB +Low-Pass Filter Bandwidth (Hz): 4M-33M + ^^^^^^^^^^^^^^^^^^^^^^^^^^^ RFX Series ^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -64,26 +66,25 @@ The user may set the receive antenna to be TX/RX or RX2. However, when using an RFX board in full-duplex mode, the receive antenna will always be set to RX2, regardless of the settings. -Recieve Gains: **PGA0**, Range: 0-70dB (except RFX400 range is 0-45dB) +Receive Gains: **PGA0**, Range: 0-70dB (except RFX400 range is 0-45dB) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ XCVR 2450 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ -The XCVR2450 has a non-contiguous tuning range consisting of a high band and a low band. -The high band consists of frequencies between...TODO +The XCVR2450 has a non-contiguous tuning range consisting of a +high band (4.9-6.0GHz) and a low band (2.4-2.5GHz). Transmit Antennas: **J1** or **J2** Receive Antennas: **J1** or **J2** -When using the XCVR2450 in full-duplex mode, -the user must set the receive antenna and the transmit antenna to be different; -not doing so will yeild undefined results. - The XCVR2450 uses a common LO for both receive and transmit. Even though the API allows the RX and TX LOs to be individually set, a change of one LO setting will be reflected in the other LO setting. +The XCVR2450 does not support full-duplex mode, attempting to operate +in full-duplex will result in transmit-only operation. + Transmit Gains: * **VGA**, Range: 0-30dB * **BB**, Range: 0-5dB @@ -92,6 +93,10 @@ Receive Gains: * **LNA**, Range: 0-30.5dB * **VGA**, Range: 0-62dB +Low-Pass Filter Bandwidths (Hz): + * **RX**: 7.5M, 9.5M, 14M, 18M; (each +-0, 5, or 10%) + * **TX**: 12M, 18M, 24M + ^^^^^^^^^^^^^^^^^^^^^^^^^^^ WBX Series ^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -105,7 +110,11 @@ the receive antenna will always be set to RX2, regardless of the settings. Transmit Gains: **PGA0**, Range: 0-25dB -Recieve Gains: **PGA0**, Range: 0-31.5dB +Receive Gains: **PGA0**, Range: 0-31.5dB + +Low-Pass Filter Bandwidths (Hz): + * **RX**: 20M (Fixed) + * **TX**: 20M (Fixed) ^^^^^^^^^^^^^^^^^^^^^^^^^^^ TVRX @@ -116,6 +125,8 @@ Receive Gains: * **RF**, Range: -13.3-50.3dB (frequency-dependent) * **IF**, Range: -1.5-32.5dB +Bandpass Filter Bandwidth: 6MHz + ------------------------------------------------------------------------ Daughterboard Modifications ------------------------------------------------------------------------ diff --git a/host/include/uhd/usrp/mimo_usrp.hpp b/host/include/uhd/usrp/mimo_usrp.hpp index 10a404059..bdd84a148 100644 --- a/host/include/uhd/usrp/mimo_usrp.hpp +++ b/host/include/uhd/usrp/mimo_usrp.hpp @@ -148,6 +148,8 @@ public: * \return the rssi in dB */ virtual float read_rssi(size_t chan) = 0; + + virtual void set_rx_bandwidth(size_t chan, float bandwidth) = 0; /******************************************************************* * TX methods diff --git a/host/include/uhd/usrp/simple_usrp.hpp b/host/include/uhd/usrp/simple_usrp.hpp index 6149f739c..6f3597ed7 100644 --- a/host/include/uhd/usrp/simple_usrp.hpp +++ b/host/include/uhd/usrp/simple_usrp.hpp @@ -139,6 +139,8 @@ public: virtual float read_rssi(void) = 0; virtual dboard_iface::sptr get_rx_dboard_iface(void) = 0; + + virtual void set_rx_bandwidth(float) = 0; /******************************************************************* * TX methods diff --git a/host/include/uhd/usrp/single_usrp.hpp b/host/include/uhd/usrp/single_usrp.hpp index 3cd263bce..fa6498d13 100644 --- a/host/include/uhd/usrp/single_usrp.hpp +++ b/host/include/uhd/usrp/single_usrp.hpp @@ -152,6 +152,8 @@ public: virtual float read_rssi(size_t chan = 0) = 0; virtual dboard_iface::sptr get_rx_dboard_iface(size_t chan = 0) = 0; + + virtual void set_rx_bandwidth(float bandwidth, size_t chan = 0) = 0; /******************************************************************* * TX methods diff --git a/host/lib/usrp/dboard/db_dbsrx.cpp b/host/lib/usrp/dboard/db_dbsrx.cpp index 23cafea53..99137dda3 100644 --- a/host/lib/usrp/dboard/db_dbsrx.cpp +++ b/host/lib/usrp/dboard/db_dbsrx.cpp @@ -239,7 +239,6 @@ void dbsrx::set_lo_freq(double target_freq){ double actual_freq=0.0, pfd_freq=0.0, ref_clock=0.0; int R=0, N=0, r=0, m=0; bool update_filter_settings = false; - //choose refclock std::vector<double> clock_rates = this->get_iface()->get_clock_rates(dboard_iface::UNIT_RX); BOOST_FOREACH(ref_clock, std::reversed(std::sorted(clock_rates))){ @@ -251,7 +250,7 @@ void dbsrx::set_lo_freq(double target_freq){ if(dbsrx_debug) std::cerr << boost::format( "DBSRX: trying ref_clock %f and m_divider %d" - ) % (this->get_iface()->get_clock_rate(dboard_iface::UNIT_RX)) % m << std::endl; + ) % (ref_clock) % m << std::endl; if (m >= 32) continue; @@ -277,15 +276,17 @@ void dbsrx::set_lo_freq(double target_freq){ } } - //Assert because we failed to find a suitable combination of ref_clock, R and N - UHD_ASSERT_THROW(ref_clock/(1 << m) < 1e6 or ref_clock/(1 << m) > 2.5e6); - UHD_ASSERT_THROW((pfd_freq < dbsrx_pfd_freq_range.min) or (pfd_freq > dbsrx_pfd_freq_range.max)); - UHD_ASSERT_THROW((N < 256) or (N > 32768)); done_loop: + //Assert because we failed to find a suitable combination of ref_clock, R and N + UHD_ASSERT_THROW(ref_clock <= 27.0e6 and ref_clock >= 0.0); + UHD_ASSERT_THROW(ref_clock/m >= 1e6 and ref_clock/m <= 2.5e6); + UHD_ASSERT_THROW((pfd_freq >= dbsrx_pfd_freq_range.min) and (pfd_freq <= dbsrx_pfd_freq_range.max)); + UHD_ASSERT_THROW((N >= 256) and (N <= 32768)); + if(dbsrx_debug) std::cerr << boost::format( - "DBSRX: choose ref_clock %f and m_divider %d" - ) % (this->get_iface()->get_clock_rate(dboard_iface::UNIT_RX)) % m << std::endl; + "DBSRX: choose ref_clock (current: %f, new: %f) and m_divider %d" + ) % (this->get_iface()->get_clock_rate(dboard_iface::UNIT_RX)) % ref_clock % m << std::endl; //if ref_clock or m divider changed, we need to update the filter settings if (ref_clock != this->get_iface()->get_clock_rate(dboard_iface::UNIT_RX) or m != _max2118_write_regs.m_divider) update_filter_settings = true; @@ -349,7 +350,7 @@ void dbsrx::set_lo_freq(double target_freq){ "DBSRX: Tuning exceeded vco range, _max2118_write_regs.osc_band == %d\n" ) % int(_max2118_write_regs.osc_band)) ); - UHD_ASSERT_THROW(_max2118_read_regs.adc == 0); + UHD_ASSERT_THROW(_max2118_read_regs.adc != 0); //just to cause a throw } if (_max2118_write_regs.osc_band <= 0) break; _max2118_write_regs.osc_band -= 1; @@ -363,7 +364,7 @@ void dbsrx::set_lo_freq(double target_freq){ "DBSRX: Tuning exceeded vco range, _max2118_write_regs.osc_band == %d\n" ) % int(_max2118_write_regs.osc_band)) ); - UHD_ASSERT_THROW(_max2118_read_regs.adc == 0); + UHD_ASSERT_THROW(_max2118_read_regs.adc != 7); //just to cause a throw } if (_max2118_write_regs.osc_band >= 7) break; _max2118_write_regs.osc_band += 1; @@ -401,6 +402,7 @@ void dbsrx::set_lo_freq(double target_freq){ << boost::format(" Ref Freq=%fMHz\n") % (ref_clock/1e6) << boost::format(" Target Freq=%fMHz\n") % (target_freq/1e6) << boost::format(" Actual Freq=%fMHz\n") % (_lo_freq/1e6) + << boost::format(" VCO Freq=%fMHz\n") % (vco_freq/1e6) << std::endl; if (update_filter_settings) set_bandwidth(_bandwidth); diff --git a/host/lib/usrp/dboard/db_xcvr2450.cpp b/host/lib/usrp/dboard/db_xcvr2450.cpp index 0ee133f3d..314c85a69 100644 --- a/host/lib/usrp/dboard/db_xcvr2450.cpp +++ b/host/lib/usrp/dboard/db_xcvr2450.cpp @@ -51,6 +51,7 @@ #include <uhd/utils/static.hpp> #include <uhd/utils/assert.hpp> #include <uhd/utils/algorithm.hpp> +#include <uhd/utils/warning.hpp> #include <uhd/types/ranges.hpp> #include <uhd/types/dict.hpp> #include <uhd/usrp/subdev_props.hpp> @@ -72,6 +73,7 @@ using namespace boost::assign; static const bool xcvr2450_debug = false; static const freq_range_t xcvr_freq_range(2.4e9, 6.0e9); +static const freq_range_t xcvr_freq_band_seperation(2.5e9, 4.9e9); static const prop_names_t xcvr_antennas = list_of("J1")("J2"); @@ -100,6 +102,7 @@ public: private: double _lo_freq; + float _rx_bandwidth, _tx_bandwidth; uhd::dict<std::string, float> _tx_gains, _rx_gains; std::string _tx_ant, _rx_ant; int _ad9515div; @@ -110,6 +113,8 @@ private: void set_rx_ant(const std::string &ant); void set_tx_gain(float gain, const std::string &name); void set_rx_gain(float gain, const std::string &name); + void set_rx_bandwidth(float bandwidth); + void set_tx_bandwidth(float bandwidth); void update_atr(void); void spi_reset(void); @@ -176,6 +181,9 @@ xcvr2450::xcvr2450(ctor_args_t args) : xcvr_dboard_base(args){ spi_reset(); //prepare the spi + _rx_bandwidth = 9.5e6; + _tx_bandwidth = 12.0e6; + //setup the misc max2829 registers _max2829_regs.mimo_select = max2829_regs_t::MIMO_SELECT_MIMO; _max2829_regs.band_sel_mimo = max2829_regs_t::BAND_SEL_MIMO_MIMO; @@ -183,7 +191,7 @@ xcvr2450::xcvr2450(ctor_args_t args) : xcvr_dboard_base(args){ _max2829_regs.rssi_high_bw = max2829_regs_t::RSSI_HIGH_BW_6MHZ; _max2829_regs.tx_lpf_coarse_adj = max2829_regs_t::TX_LPF_COARSE_ADJ_12MHZ; _max2829_regs.rx_lpf_coarse_adj = max2829_regs_t::RX_LPF_COARSE_ADJ_9_5MHZ; - _max2829_regs.rx_lpf_fine_adj = max2829_regs_t::RX_LPF_FINE_ADJ_95; + _max2829_regs.rx_lpf_fine_adj = max2829_regs_t::RX_LPF_FINE_ADJ_100; _max2829_regs.rx_vga_gain_spi = max2829_regs_t::RX_VGA_GAIN_SPI_SPI; _max2829_regs.rssi_output_range = max2829_regs_t::RSSI_OUTPUT_RANGE_HIGH; _max2829_regs.rssi_op_mode = max2829_regs_t::RSSI_OP_MODE_ENABLED; @@ -244,15 +252,24 @@ void xcvr2450::update_atr(void){ this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_IDLE, POWER_UP_RXIO | RX_DIS_RXIO); this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_RX_ONLY, POWER_UP_RXIO | RX_ENB_RXIO); this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_TX_ONLY, POWER_UP_RXIO | RX_DIS_RXIO); - this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_FULL_DUPLEX, POWER_UP_RXIO | RX_ENB_RXIO); + this->get_iface()->set_atr_reg(dboard_iface::UNIT_RX, dboard_iface::ATR_REG_FULL_DUPLEX, POWER_UP_RXIO | RX_DIS_RXIO); } /*********************************************************************** * Tuning **********************************************************************/ void xcvr2450::set_lo_freq(double target_freq){ + //clip for highband and lowband + if((target_freq > xcvr_freq_band_seperation.min) and (target_freq < xcvr_freq_band_seperation.max)){ + if(target_freq - xcvr_freq_band_seperation.min < xcvr_freq_band_seperation.max - target_freq){ + target_freq = xcvr_freq_band_seperation.min; + }else{ + target_freq = xcvr_freq_band_seperation.max; + } + } + + //clip for max and min target_freq = std::clip(target_freq, xcvr_freq_range.min, xcvr_freq_range.max); - //TODO: clip for highband and lowband //variables used in the calculation below double scaler = xcvr2450::is_highband(target_freq)? (4.0/5.0) : (4.0/3.0); @@ -434,6 +451,114 @@ void xcvr2450::set_rx_gain(float gain, const std::string &name){ _rx_gains[name] = gain; } + +/*********************************************************************** + * Bandwidth Handling + **********************************************************************/ +static max2829_regs_t::tx_lpf_coarse_adj_t bandwidth_to_tx_lpf_coarse_reg(float &bandwidth){ + int reg = std::clip(boost::math::iround((bandwidth-6.0e6)/6.0e6), 1, 3); + + switch(reg){ + case 1: // bandwidth < 15MHz + bandwidth = 12e6; + return max2829_regs_t::TX_LPF_COARSE_ADJ_12MHZ; + case 2: // 15MHz < bandwidth < 21MHz + bandwidth = 18e6; + return max2829_regs_t::TX_LPF_COARSE_ADJ_18MHZ; + case 3: // bandwidth > 21MHz + bandwidth = 24e6; + return max2829_regs_t::TX_LPF_COARSE_ADJ_24MHZ; + } + UHD_THROW_INVALID_CODE_PATH(); +} + +static max2829_regs_t::rx_lpf_fine_adj_t bandwidth_to_rx_lpf_fine_reg(float &bandwidth, float requested_bandwidth){ + int reg = std::clip(boost::math::iround((requested_bandwidth/bandwidth)/0.05), 18, 22); + + switch(reg){ + case 18: // requested_bandwidth < 92.5% + bandwidth = 0.9 * bandwidth; + return max2829_regs_t::RX_LPF_FINE_ADJ_90; + case 19: // 92.5% < requested_bandwidth < 97.5% + bandwidth = 0.95 * bandwidth; + return max2829_regs_t::RX_LPF_FINE_ADJ_95; + case 20: // 97.5% < requested_bandwidth < 102.5% + bandwidth = 1.0 * bandwidth; + return max2829_regs_t::RX_LPF_FINE_ADJ_100; + case 21: // 102.5% < requested_bandwidth < 107.5% + bandwidth = 1.05 * bandwidth; + return max2829_regs_t::RX_LPF_FINE_ADJ_105; + case 22: // 107.5% < requested_bandwidth + bandwidth = 1.1 * bandwidth; + return max2829_regs_t::RX_LPF_FINE_ADJ_110; + } + UHD_THROW_INVALID_CODE_PATH(); +} + +static max2829_regs_t::rx_lpf_coarse_adj_t bandwidth_to_rx_lpf_coarse_reg(float &bandwidth){ + int reg = std::clip(boost::math::iround((bandwidth-7.0e6)/1.0e6), 0, 11); + + switch(reg){ + case 0: // bandwidth < 7.5MHz + case 1: // 7.5MHz < bandwidth < 8.5MHz + bandwidth = 7.5e6; + return max2829_regs_t::RX_LPF_COARSE_ADJ_7_5MHZ; + case 2: // 8.5MHz < bandwidth < 9.5MHz + case 3: // 9.5MHz < bandwidth < 10.5MHz + case 4: // 10.5MHz < bandwidth < 11.5MHz + bandwidth = 9.5e6; + return max2829_regs_t::RX_LPF_COARSE_ADJ_9_5MHZ; + case 5: // 11.5MHz < bandwidth < 12.5MHz + case 6: // 12.5MHz < bandwidth < 13.5MHz + case 7: // 13.5MHz < bandwidth < 14.5MHz + case 8: // 14.5MHz < bandwidth < 15.5MHz + bandwidth = 14e6; + return max2829_regs_t::RX_LPF_COARSE_ADJ_14MHZ; + case 9: // 15.5MHz < bandwidth < 16.5MHz + case 10: // 16.5MHz < bandwidth < 17.5MHz + case 11: // 17.5MHz < bandwidth + bandwidth = 18e6; + return max2829_regs_t::RX_LPF_COARSE_ADJ_18MHZ; + } + UHD_THROW_INVALID_CODE_PATH(); +} + +void xcvr2450::set_rx_bandwidth(float bandwidth){ + float requested_bandwidth = bandwidth; + + //compute coarse low pass cutoff frequency setting + _max2829_regs.rx_lpf_coarse_adj = bandwidth_to_rx_lpf_coarse_reg(bandwidth); + + //compute fine low pass cutoff frequency setting + _max2829_regs.rx_lpf_fine_adj = bandwidth_to_rx_lpf_fine_reg(bandwidth, requested_bandwidth); + + //shadow bandwidth setting + _rx_bandwidth = bandwidth; + + //update register + send_reg(0x7); + + if (xcvr2450_debug) std::cerr << boost::format( + "XCVR2450 RX Bandwidth (lp_fc): %f Hz, coarse reg: %d, fine reg: %d" + ) % _rx_bandwidth % (int(_max2829_regs.rx_lpf_coarse_adj)) % (int(_max2829_regs.rx_lpf_fine_adj)) << std::endl; +} + +void xcvr2450::set_tx_bandwidth(float bandwidth){ + //compute coarse low pass cutoff frequency setting + _max2829_regs.tx_lpf_coarse_adj = bandwidth_to_tx_lpf_coarse_reg(bandwidth); + + //shadow bandwidth setting + _tx_bandwidth = bandwidth; + + //update register + send_reg(0x7); + + if (xcvr2450_debug) std::cerr << boost::format( + "XCVR2450 TX Bandwidth (lp_fc): %f Hz, coarse reg: %d" + ) % _tx_bandwidth % (int(_max2829_regs.tx_lpf_coarse_adj)) << std::endl; +} + + /*********************************************************************** * RX Get and Set **********************************************************************/ @@ -500,6 +625,10 @@ void xcvr2450::rx_get(const wax::obj &key_, wax::obj &val){ val = this->get_rssi(); return; + case SUBDEV_PROP_BANDWIDTH: + val = _rx_bandwidth; + return; + default: UHD_THROW_PROP_GET_ERROR(); } } @@ -522,6 +651,10 @@ void xcvr2450::rx_set(const wax::obj &key_, const wax::obj &val){ this->set_rx_ant(val.as<std::string>()); return; + case SUBDEV_PROP_BANDWIDTH: + this->set_rx_bandwidth(val.as<float>()); + return; + case SUBDEV_PROP_ENABLED: return; //always enabled @@ -591,6 +724,10 @@ void xcvr2450::tx_get(const wax::obj &key_, wax::obj &val){ val = this->get_locked(); return; + case SUBDEV_PROP_BANDWIDTH: + val = _tx_bandwidth; + return; + default: UHD_THROW_PROP_GET_ERROR(); } } @@ -609,6 +746,10 @@ void xcvr2450::tx_set(const wax::obj &key_, const wax::obj &val){ this->set_tx_gain(val.as<float>(), key.name); return; + case SUBDEV_PROP_BANDWIDTH: + this->set_tx_bandwidth(val.as<float>()); + return; + case SUBDEV_PROP_ANTENNA: this->set_tx_ant(val.as<std::string>()); return; diff --git a/host/lib/usrp/mimo_usrp.cpp b/host/lib/usrp/mimo_usrp.cpp index 9331c7fbb..08618c288 100644 --- a/host/lib/usrp/mimo_usrp.cpp +++ b/host/lib/usrp/mimo_usrp.cpp @@ -225,6 +225,10 @@ public: float read_rssi(size_t chan){ return _rx_subdev(chan)[SUBDEV_PROP_RSSI].as<float>(); } + + void set_rx_bandwidth(size_t chan, float bandwidth){ + _rx_subdev(chan)[SUBDEV_PROP_BANDWIDTH] = bandwidth; + } /******************************************************************* * TX methods diff --git a/host/lib/usrp/simple_usrp.cpp b/host/lib/usrp/simple_usrp.cpp index b89b76eed..b4f34287b 100644 --- a/host/lib/usrp/simple_usrp.cpp +++ b/host/lib/usrp/simple_usrp.cpp @@ -136,6 +136,10 @@ public: dboard_iface::sptr get_rx_dboard_iface(void){ return _sdev->get_rx_dboard_iface(); } + + void set_rx_bandwidth(float bandwidth) { + return _sdev->set_rx_bandwidth(bandwidth); + } /******************************************************************* * TX methods diff --git a/host/lib/usrp/single_usrp.cpp b/host/lib/usrp/single_usrp.cpp index 08dc3bb1d..7d053535e 100644 --- a/host/lib/usrp/single_usrp.cpp +++ b/host/lib/usrp/single_usrp.cpp @@ -202,6 +202,10 @@ public: dboard_iface::sptr get_rx_dboard_iface(size_t chan){ return _rx_dboard(chan)[DBOARD_PROP_DBOARD_IFACE].as<dboard_iface::sptr>(); } + + void set_rx_bandwidth(float bandwidth, size_t chan) { + _rx_subdev(chan)[SUBDEV_PROP_BANDWIDTH] = bandwidth; + } /******************************************************************* * TX methods |