dunedaq::timing::LTC2945Node Class Reference

#include <LTC2945Node.hpp>

Inheritance diagram for dunedaq::timing::LTC2945Node:

Collaboration diagram for dunedaq::timing::LTC2945Node:

Public Member Functions
	LTC2945Node (const I2CMasterNode *i2c_master, uint8_t i2c_device_address, double sense_resistance)
virtual	~LTC2945Node ()
double	read_v_in () const
	Read V in [V].
double	read_delta_sense_v () const
	Read delta sense voltage [V].
double	read_power () const
	Read power [W].
Public Member Functions inherited from dunedaq::timing::I2CSlave
virtual	~I2CSlave ()
uint8_t	get_i2c_address () const
uint8_t	read_i2c (uint32_t i2c_device_address, uint32_t i2c_reg_address) const
	comodity functions
uint8_t	read_i2c (uint32_t i2c_reg_address) const
uint8_t	read_i2c_atomic (uint32_t i2c_device_address, uint32_t i2c_reg_address) const
uint8_t	read_i2c_atomic (uint32_t i2c_reg_address) const
void	write_i2c (uint32_t i2c_device_address, uint32_t i2c_reg_address, uint8_t data, bool send_stop=true) const
void	write_i2c (uint32_t i2c_reg_address, uint8_t data, bool send_stop=true) const
std::vector< uint8_t >	read_i2cArray (uint32_t i2c_device_address, uint32_t i2c_reg_address, uint32_t number_of_words) const
std::vector< uint8_t >	read_i2cArray (uint32_t i2c_reg_address, uint32_t number_of_words) const
std::vector< uint8_t >	read_i2cArray_atomic (uint32_t i2c_reg_address, uint32_t number_of_words) const
std::vector< uint8_t >	read_i2cArray_atomic (uint32_t i2c_device_address, uint32_t i2c_reg_address, uint32_t number_of_words) const
void	write_i2cArray (uint32_t i2c_device_address, uint32_t i2c_reg_address, std::vector< uint8_t > data, bool send_stop=true) const
void	write_i2cArray (uint32_t i2c_reg_address, std::vector< uint8_t > data, bool send_stop=true) const
std::vector< uint8_t >	read_i2cPrimitive (uint32_t number_of_bytes) const
void	write_i2cPrimitive (const std::vector< uint8_t > &data, bool send_stop=true) const
bool	ping (bool throw_excp=false) const
std::string	get_master_id () const

Protected Attributes
double	m_sense_resistance

Static Private Member Functions
static uint16_t	combine_adc_data (uint8_t msb_byte, uint8_t lsb_byte)
static uint32_t	combine_power_data (uint8_t msb_byte_2, uint8_t msb_byte_1, uint8_t lsb_byte)

Static Private Attributes
static constexpr float	v_in_resolution = 0.025
static constexpr float	delta_sense_v_resolution = 0.000025

Additional Inherited Members
Protected Member Functions inherited from dunedaq::timing::I2CSlave
	I2CSlave (const I2CMasterNode *i2c_master, uint8_t i2c_device_address)

Detailed Description

Definition at line 26 of file LTC2945Node.hpp.

Constructor & Destructor Documentation

LTC2945Node()

dunedaq::timing::LTC2945Node::LTC2945Node	(	const I2CMasterNode *	i2c_master,
		uint8_t	i2c_device_address,
		double	sense_resistance )

Definition at line 23 of file LTC2945Node.cpp.

  : m_sense_resistance(sense_resistance)
  , I2CSlave(i2c_master, address)
{}

~LTC2945Node()

dunedaq::timing::LTC2945Node::~LTC2945Node ( )

virtual

Definition at line 30 of file LTC2945Node.cpp.

{}

Member Function Documentation

combine_adc_data()

uint16_t dunedaq::timing::LTC2945Node::combine_adc_data ( uint8_t msb_byte, uint8_t lsb_byte )

staticprivate

Definition at line 116 of file LTC2945Node.cpp.

{
  uint16_t adc = (uint16_t)msb_byte << 4;
  adc = adc | (lsb_byte >> 4);
  return adc;
}

combine_power_data()

uint32_t dunedaq::timing::LTC2945Node::combine_power_data ( uint8_t msb_byte_2, uint8_t msb_byte_1, uint8_t lsb_byte )

staticprivate

Definition at line 126 of file LTC2945Node.cpp.

{
  uint32_t power = (uint32_t)msb_byte_2 << 16;
  power = power | ((uint16_t)msb_byte_1 << 8);
  power = power | lsb_byte;
  return power;
}

read_delta_sense_v()

double dunedaq::timing::LTC2945Node::read_delta_sense_v

(

)

const

Read delta sense voltage [V].

Definition at line 84 of file LTC2945Node.cpp.

{
  std::vector<uint8_t> v_bytes = this->read_i2cArray_atomic(0x14, 0x2); // NOLINT(build/unsigned)
  uint16_t v_raw = combine_adc_data(v_bytes[0], v_bytes[1]);
  double v = v_raw*delta_sense_v_resolution;
 
  TLOG_DEBUG(13) << "LTC2945 deltaSense V data - "
  << "raw bytes: 0x" << std::hex << (uint)v_bytes[0] << ", 0x" << (uint)v_bytes[1] // NOLINT(build/unsigned)
  << ", combined word: 0x" << v_raw
  << ", detlaSense V [mV]: " << v*1000;
  return v;
}

read_power()

double dunedaq::timing::LTC2945Node::read_power

(

)

const

Read power [W].

Definition at line 100 of file LTC2945Node.cpp.

{
  std::vector<uint8_t> power_bytes = this->read_i2cArray_atomic(0x05, 0x3); // NOLINT(build/unsigned)
  uint32_t power_raw = combine_power_data(power_bytes[0], power_bytes[1], power_bytes[2]);
  double power = (power_raw * v_in_resolution * delta_sense_v_resolution) / m_sense_resistance;
 
  TLOG_DEBUG(13) << "LTC2945 power data - "
  << "raw bytes: 0x" << std::hex << (uint)power_bytes[0] << ", 0x" << (uint)power_bytes[1] << ", 0x" << (uint)power_bytes[2] // NOLINT(build/unsigned)
  << ", combined word: 0x" << power_raw
  << ", power [mW]: " << power*1000;
  return power;
}

read_v_in()

double dunedaq::timing::LTC2945Node::read_v_in

(

)

const

Read V in [V].

Definition at line 68 of file LTC2945Node.cpp.

{
  std::vector<uint8_t> v_in_bytes = this->read_i2cArray_atomic(0x1e, 0x2); // NOLINT(build/unsigned)
  uint16_t v_in_raw = combine_adc_data(v_in_bytes[0], v_in_bytes[1]);
  double v_in = v_in_raw*v_in_resolution;
 
  TLOG_DEBUG(13) << "LTC2945 Vin data - "
  << "raw bytes: 0x" << std::hex << (uint)v_in_bytes[0] << ", 0x" << (uint)v_in_bytes[1] // NOLINT(build/unsigned)
  << ", combined word: 0x" << v_in_raw
  << ", Vin [V]: " << v_in;
  return v_in;
}

Member Data Documentation

delta_sense_v_resolution

float dunedaq::timing::LTC2945Node::delta_sense_v_resolution = 0.000025

staticconstexprprivate

Definition at line 57 of file LTC2945Node.hpp.

m_sense_resistance

double dunedaq::timing::LTC2945Node::m_sense_resistance

protected

Definition at line 51 of file LTC2945Node.hpp.

v_in_resolution

float dunedaq::timing::LTC2945Node::v_in_resolution = 0.025

staticconstexprprivate

Definition at line 56 of file LTC2945Node.hpp.

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The documentation for this class was generated from the following files:

• /github/workspace/dunedaq/sourcecode/timing/include/timing/LTC2945Node.hpp
• /github/workspace/dunedaq/sourcecode/timing/src/LTC2945Node.cpp