dunedaq::timing::LM75Node Class Reference

#include <LM75Node.hpp>

Inheritance diagram for dunedaq::timing::LM75Node:

Collaboration diagram for dunedaq::timing::LM75Node:

Public Member Functions
	LM75Node (const I2CMasterNode *i2c_master, uint8_t i2c_device_address)
virtual	~LM75Node ()
float	read_temperature () const
	Read temperature [C].
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 () const
std::string	get_master_id () const

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 LM75Node.hpp.

Constructor & Destructor Documentation

LM75Node()

dunedaq::timing::LM75Node::LM75Node	(	const I2CMasterNode *	i2c_master,
		uint8_t	i2c_device_address )

Definition at line 23 of file LM75Node.cpp.

  : I2CSlave(i2c_master, address)
{}

~LM75Node()

dunedaq::timing::LM75Node::~LM75Node ( )

virtual

Definition at line 29 of file LM75Node.cpp.

{}

Member Function Documentation

read_temperature()

float dunedaq::timing::LM75Node::read_temperature

(

)

const

Read temperature [C].

Definition at line 34 of file LM75Node.cpp.

{
  std::vector<uint8_t> temp_bytes = this->read_i2cPrimitive(2); // NOLINT(build/unsigned)
  uint16_t temp_raw = (temp_bytes[1] & 0x80) >> 7;
  temp_raw = temp_raw | (temp_bytes[0] << 1);
 
  // 1s padding for negative values
  if (temp_raw & 0x0100)
  {
    temp_raw = temp_raw | 0xfe00; 
  }
  int16_t temp = static_cast<int16_t>(temp_raw);
 
  TLOG_DEBUG(13) << "LM75 temp data - "
  << "raw bytes: 0x" << std::hex << (uint)temp_bytes[0] << ", 0x" << (uint)temp_bytes[1] // NOLINT(build/unsigned)
  << ", combined word: 0x" << temp_raw
  << ", temp [C]: " << temp*0.5;
  return temp*0.5;
}

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

• /github/workspace/dunedaq/sourcecode/timing/include/timing/LM75Node.hpp
• /github/workspace/dunedaq/sourcecode/timing/src/LM75Node.cpp