diff options
| -rw-r--r-- | host/docs/dboards.rst | 119 | ||||
| -rw-r--r-- | host/docs/usrp_e1xx.rst | 38 | ||||
| -rw-r--r-- | host/lib/usrp/dboard/db_xcvr2450.cpp | 13 |
3 files changed, 144 insertions, 26 deletions
diff --git a/host/docs/dboards.rst b/host/docs/dboards.rst index 419456df2..373189441 100644 --- a/host/docs/dboards.rst +++ b/host/docs/dboards.rst @@ -27,12 +27,14 @@ Though the magic of aliasing, you can down-convert signals greater than the Nyquist rate of the ADC. BasicRX Bandwidth (Hz): - For Real-Mode (A or B subdevice): 250M - For Complex (AB or BA subdevice): 500M + +* For Real-Mode (A or B subdevice): 250M +* For Complex (AB or BA subdevice): 500M LFRX Bandwidth (Hz): - For Real-Mode (A or B subdevice): 33M - For Complex (AB or BA subdevice): 66M + +* For Real-Mode (A or B subdevice): 33M +* For Complex (AB or BA subdevice): 66M ^^^^^^^^^^^^^^^^^^^^^^^^^^^ Basic TX and and LFTX @@ -49,31 +51,67 @@ Though the magic of aliasing, you can up-convert signals greater than the Nyquist rate of the DAC. BasicTX Bandwidth (Hz): 250M - For Real-Mode (A or B subdevice): 250M - For Complex (AB or BA subdevice): 500M + +* For Real-Mode (A or B subdevice): 250M +* For Complex (AB or BA subdevice): 500M LFTX Bandwidth (Hz): 33M - For Real-Mode (A or B subdevice): 33M - For Complex (AB or BA subdevice): 66M + +* For Real-Mode (A or B subdevice): 33M +* For Complex (AB or BA subdevice): 66M ^^^^^^^^^^^^^^^^^^^^^^^^^^^ DBSRX ^^^^^^^^^^^^^^^^^^^^^^^^^^^ -The DBSRX board has 1 quadrature subdevice. +The DBSRX board has 1 quadrature subdevice. +It defaults to direct conversion, but can use a low IF through lo_offset in uhd::tune_request_t Receive Antennas: **J3** The board has no user selectable antenna setting -Receive Gains: - **GC1**, Range: 0-56dB - **GC2**, Range: 0-24dB +Receive Gains: + +* **GC1**, Range: 0-56dB +* **GC2**, Range: 0-24dB Bandwidth (Hz): 8M-66M +Sensors: + +* **lo_locked**: boolean for LO lock state + +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +DBSRX2 +^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The DBSRX2 board has 1 quadrature subdevice. +It defaults to direct conversion, but can use a low IF through lo_offset in uhd::tune_request_t + +Receive Antennas: **J3** + +The board has no user selectable antenna setting + +Receive Gains: + +* **GC1**, Range: 0-73dB +* **BBG**, Range: 0-15dB + +Bandwidth (Hz): 8M-80M + +Sensors: + +* **lo_locked**: boolean for LO lock state + ^^^^^^^^^^^^^^^^^^^^^^^^^^^ RFX Series ^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The RFX Series boards have 2 quadrature subdevices, one transmit, one receive. +Transmit defaults to low IF and Receive defaults to direct conversion. +The IF can be adjusted through lo_offset in uhd::tune_request_t + +The RFX Series boards have independent receive and transmit LO's and synthesizers +allowing full-duplex operation on different transmit and receive frequencies. + Transmit Antennas: **TX/RX** Receive Antennas: **TX/RX** or **RX2** @@ -85,12 +123,21 @@ the receive antenna will always be set to RX2, regardless of the settings. Receive Gains: **PGA0**, Range: 0-70dB (except RFX400 range is 0-45dB) Bandwidths (Hz): - * **RX**: 40M - * **TX**: 40M + +* **RX**: 40M +* **TX**: 40M + +Sensors: + +* **lo_locked**: boolean for LO lock state ^^^^^^^^^^^^^^^^^^^^^^^^^^^ XCVR 2450 ^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The XCVR2450 has 2 quadrature subdevices, one transmit, one receive. +Transmit and Receive default to direct conversion but +can be used in low IF mode through lo_offset in uhd::tune_request_t + 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). @@ -106,20 +153,35 @@ 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 + +* **VGA**, Range: 0-30dB +* **BB**, Range: 0-5dB Receive Gains: - * **LNA**, Range: 0-30.5dB - * **VGA**, Range: 0-62dB + +* **LNA**, Range: 0-30.5dB +* **VGA**, Range: 0-62dB Bandwidths (Hz): - * **RX**: 15M, 19M, 28M, 36M; (each +-0, 5, or 10%) - * **TX**: 24M, 36M, 48M + +* **RX**: 15M, 19M, 28M, 36M; (each +-0, 5, or 10%) +* **TX**: 24M, 36M, 48M + +Sensors: + +* **lo_locked**: boolean for LO lock state +* **rssi**: float for rssi in dBm ^^^^^^^^^^^^^^^^^^^^^^^^^^^ WBX Series ^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The WBX Series boards have 2 quadrature subdevices, one transmit, one receive. +Transmit and Receive default to direct conversion but +can be used in low IF mode through lo_offset in uhd::tune_request_t + +The WBX Series boards have independent receive and transmit LO's and synthesizers +allowing full-duplex operation on different transmit and receive frequencies. + Transmit Antennas: **TX/RX** Receive Antennas: **TX/RX** or **RX2** @@ -133,17 +195,26 @@ Transmit Gains: **PGA0**, Range: 0-25dB Receive Gains: **PGA0**, Range: 0-31.5dB Bandwidths (Hz): - * **RX**: 40M - * **TX**: 40M + +* **RX**: 40M +* **TX**: 40M + +Sensors: + +* **lo_locked**: boolean for LO lock state ^^^^^^^^^^^^^^^^^^^^^^^^^^^ TVRX ^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The TVRX board has 1 real-mode subdevice. +It is operated at a low IF. + Receive Antennas: RX Receive Gains: - * **RF**, Range: -13.3-50.3dB (frequency-dependent) - * **IF**, Range: -1.5-32.5dB + +* **RF**, Range: -13.3-50.3dB (frequency-dependent) +* **IF**, Range: -1.5-32.5dB Bandwidth: 6MHz diff --git a/host/docs/usrp_e1xx.rst b/host/docs/usrp_e1xx.rst index fb5848bad..2818a0a65 100644 --- a/host/docs/usrp_e1xx.rst +++ b/host/docs/usrp_e1xx.rst @@ -63,3 +63,41 @@ Run the following commands to restore the clock generator to a usable state: cd <install-path>/share/uhd/usrp_e_utilities ./usrp-e-utility --fpga=../images/usrp_e100_pt_fpga.bin --reclk + + +------------------------------------------------------------------------ +Clock Synchronization +------------------------------------------------------------------------ + + +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +Ref Clock - 10MHz +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +The E1xx has a 10MHz TCXO which can be used to discipline the flexible clocking by +selecting REF_INT for the clock_config_t. + +Alternately, an external 10MHz reference clock can be supplied by soldering a connector. + +* Connector J10 (REF_IN) needs MCX connector WM5541-ND or similar +* Square wave will offer the best phase noise performance, but sinusoid is acceptable +* Power level: 0 to 15dBm +* Select REF_SMA in clock_config_t + + +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +PPS - Pulse Per Second +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ +An exteral PPS signal for timestamp synchronization can be supplied by soldering a connector. + +* Connector J13 (PPS) needs MCX connector WM5541-ND or similar +* Requires a square wave signal +* Amplitude: 3.3 to 5Vpp + +Test the PPS input with the following app: + +* <args> are device address arguments (optional if only one USRP is on your machine) + +:: + + cd <install-path>/share/uhd/examples + ./test_pps_input --args=<args> diff --git a/host/lib/usrp/dboard/db_xcvr2450.cpp b/host/lib/usrp/dboard/db_xcvr2450.cpp index 9d25b30a5..70b0bbabd 100644 --- a/host/lib/usrp/dboard/db_xcvr2450.cpp +++ b/host/lib/usrp/dboard/db_xcvr2450.cpp @@ -152,12 +152,21 @@ private: * \return the rssi in dB */ double get_rssi(void){ + //*FIXME* RSSI depends on LNA Gain Setting (datasheet pg 16 top middle chart) + double max_power; + switch(_max2829_regs.rx_lna_gain){ + case 0: + case 1: max_power = 0; break; + case 2: max_power = -15; break; + case 3: max_power = -30.5; break; + } + //constants for the rssi calculation static const double min_v = 0.5, max_v = 2.5; static const double rssi_dyn_range = 60; //calculate the rssi from the voltage double voltage = this->get_iface()->read_aux_adc(dboard_iface::UNIT_RX, dboard_iface::AUX_ADC_B); - return rssi_dyn_range*(voltage - min_v)/(max_v - min_v); + return max_power - rssi_dyn_range*(voltage - min_v)/(max_v - min_v); } }; @@ -621,7 +630,7 @@ void xcvr2450::rx_get(const wax::obj &key_, wax::obj &val){ if (key.name == "lo_locked") val = sensor_value_t("LO", this->get_locked(), "locked", "unlocked"); else if (key.name == "rssi") - val = sensor_value_t("RSSI", this->get_rssi(), "dB"); + val = sensor_value_t("RSSI", this->get_rssi(), "dBm"); else UHD_THROW_INVALID_CODE_PATH(); return; |