diff options
| -rw-r--r-- | host/lib/usrp/common/ad9361_ctrl.cpp | 6 | ||||
| -rw-r--r-- | host/lib/usrp/common/ad9361_ctrl.hpp | 3 | ||||
| -rw-r--r-- | host/lib/usrp/common/ad9361_driver/ad9361_device.cpp | 46 | ||||
| -rw-r--r-- | host/lib/usrp/common/ad9361_driver/ad9361_device.h | 7 |
4 files changed, 61 insertions, 1 deletions
diff --git a/host/lib/usrp/common/ad9361_ctrl.cpp b/host/lib/usrp/common/ad9361_ctrl.cpp index 85510530d..3db6739e7 100644 --- a/host/lib/usrp/common/ad9361_ctrl.cpp +++ b/host/lib/usrp/common/ad9361_ctrl.cpp @@ -172,6 +172,12 @@ public: return sensor_value_t("RSSI", _device.get_rssi(chain), "dB"); } + //! read the internal temp sensor. Average over 3 results + sensor_value_t get_temperature() + { + return sensor_value_t("temp", _device.get_average_temperature(), "C"); + } + private: static ad9361_device_t::direction_t _get_direction_from_antenna(const std::string& antenna) { diff --git a/host/lib/usrp/common/ad9361_ctrl.hpp b/host/lib/usrp/common/ad9361_ctrl.hpp index 16e1d23eb..7d44700fe 100644 --- a/host/lib/usrp/common/ad9361_ctrl.hpp +++ b/host/lib/usrp/common/ad9361_ctrl.hpp @@ -100,6 +100,9 @@ public: //! read internal RSSI sensor virtual sensor_value_t get_rssi(const std::string &which) = 0; + + //! read the internal temp sensor + virtual sensor_value_t get_temperature() = 0; }; }} diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp index 7e574920a..ba8fe1f20 100644 --- a/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp +++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.cpp @@ -1485,7 +1485,7 @@ void ad9361_device_t::initialize() /* Setup AuxADC */ _io_iface->poke8(0x00B, 0x00); // Temp Sensor Setup (Offset) _io_iface->poke8(0x00C, 0x00); // Temp Sensor Setup (Temp Window) - _io_iface->poke8(0x00D, 0x03); // Temp Sensor Setup (Periodic Measure) + _io_iface->poke8(0x00D, 0x00); // Temp Sensor Setup (Manual Measure) _io_iface->poke8(0x00F, 0x04); // Temp Sensor Setup (Decimation) _io_iface->poke8(0x01C, 0x10); // AuxADC Setup (Clock Div) _io_iface->poke8(0x01D, 0x01); // AuxADC Setup (Decimation/Enable) @@ -1946,4 +1946,48 @@ double ad9361_device_t::get_rssi(chain_t chain) return rssi; } +/* + * Returns the reading of the internal temperature sensor. + * One point calibration of the sensor was done according to datasheet + * leading to the given default constant correction factor. + */ +double ad9361_device_t::_get_temperature(const double cal_offset, const double timeout) +{ + //set 0x01D[0] to 1 to disable AuxADC GPIO reading + boost::uint8_t tmp = 0; + tmp = _io_iface->peek8(0x01D); + _io_iface->poke8(0x01D, (tmp | 0x01)); + _io_iface->poke8(0x00B, 0); //set offset to 0 + + _io_iface->poke8(0x00C, 0x01); //start reading, clears bit 0x00C[1] + boost::posix_time::ptime start_time = boost::posix_time::microsec_clock::local_time(); + boost::posix_time::time_duration elapsed; + //wait for valid data (toggle of bit 1 in 0x00C) + while(((_io_iface->peek8(0x00C) >> 1) & 0x01) == 0) { + boost::this_thread::sleep(boost::posix_time::microseconds(100)); + elapsed = boost::posix_time::microsec_clock::local_time() - start_time; + if(elapsed.total_milliseconds() > (timeout*1000)) + { + throw uhd::runtime_error("[ad9361_device_t] timeout while reading temperature"); + } + } + _io_iface->poke8(0x00C, 0x00); //clear read flag + + boost::uint8_t temp = _io_iface->peek8(0x00E); //read temperature. + double tmp_temp = temp/1.140f; //according to ADI driver + tmp_temp = tmp_temp + cal_offset; //Constant offset acquired by one point calibration. + + return tmp_temp; +} + +double ad9361_device_t::get_average_temperature(const double cal_offset, const size_t num_samples) +{ + double d_temp = 0; + for(size_t i = 0; i < num_samples; i++) { + double tmp_temp = _get_temperature(cal_offset); + d_temp += (tmp_temp/num_samples); + } + return d_temp; +} + }} diff --git a/host/lib/usrp/common/ad9361_driver/ad9361_device.h b/host/lib/usrp/common/ad9361_driver/ad9361_device.h index fead90424..b178e46cc 100644 --- a/host/lib/usrp/common/ad9361_driver/ad9361_device.h +++ b/host/lib/usrp/common/ad9361_driver/ad9361_device.h @@ -66,6 +66,12 @@ public: /* Read back the internal RSSI measurement data. */ double get_rssi(chain_t chain); + /*! Read the internal temperature sensor + *\param calibrate return raw sensor readings or apply calibration factor. + *\param num_samples number of measurements to average over + */ + double get_average_temperature(const double cal_offset = -30.0, const size_t num_samples = 3); + //Constants static const double AD9361_MAX_GAIN; static const double AD9361_MAX_CLOCK_RATE; @@ -95,6 +101,7 @@ private: //Methods void _reprogram_gains(); double _tune_helper(direction_t direction, const double value); double _setup_rates(const double rate); + double _get_temperature(const double cal_offset, const double timeout = 0.1); private: //Members typedef struct { |