L1Topo::Header Class Reference

Represents the L1Topo header word of the L1Topo DAQ data, with decoder and encoder. More...

#include <Header.h>

Collaboration diagram for L1Topo::Header:

Public Member Functions
	Header (const uint32_t version, const uint32_t active_fibres, const uint32_t payload_crc, const uint32_t fpga, const uint32_t last_block, const uint32_t bcn_sign, const uint32_t bcn_offset)
	Construct from contents and encode word.
	Header (uint32_t word)
	Construct with word and decode contents.
uint32_t	version () const
	access method
uint32_t	active_fibres () const
	access method
uint32_t	payload_crc () const
	access method
uint32_t	fpga () const
	access method
uint32_t	last_block () const
	access method
uint32_t	bcn_sign () const
	access method
uint32_t	bcn_offset () const
	access method
int	bcn () const
	access method
uint32_t	word () const
	access method

Protected Member Functions
void	decode ()
	method used by constructor to decode word
void	encode ()
	method used by constructor to encode word

Private Attributes
uint32_t	m_version
uint32_t	m_active_fibres
uint32_t	m_payload_crc
uint32_t	m_fpga
uint32_t	m_last_block
uint32_t	m_bcn_sign
uint32_t	m_bcn_offset
int	m_bcn
uint32_t	m_word

Detailed Description

Represents the L1Topo header word of the L1Topo DAQ data, with decoder and encoder.

Used to decode/encode the 32-bit word which contents include bunch crossing, FPGA, last block, active fibres and CRC.

Definition at line 18 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

Constructor & Destructor Documentation

Header() [1/2]

L1Topo::Header::Header	(	const uint32_t	version,
		const uint32_t	active_fibres,
		const uint32_t	payload_crc,
		const uint32_t	fpga,
		const uint32_t	last_block,
		const uint32_t	bcn_sign,
		const uint32_t	bcn_offset )

Construct from contents and encode word.

Definition at line 12 of file L1Topo/L1TopoRDO/src/Header.cxx.

    :m_version(version), m_active_fibres(active_fibres), m_payload_crc(payload_crc), m_fpga(fpga),
     m_last_block(last_block), m_bcn_sign(bcn_sign), m_bcn_offset(bcn_offset), m_bcn(0), m_word(0) {
    this->encode();
    m_bcn = signedBCN(m_bcn_sign, m_bcn_offset);
  }

Header() [2/2]

L1Topo::Header::Header

(

uint32_t

word

)

Construct with word and decode contents.

Definition at line 19 of file L1Topo/L1TopoRDO/src/Header.cxx.

    : m_word(word){
    this->decode();
    m_bcn = signedBCN(m_bcn_sign, m_bcn_offset);
  }

Member Function Documentation

active_fibres()

uint32_t L1Topo::Header::active_fibres

(

)

const

access method

Definition at line 54 of file L1Topo/L1TopoRDO/src/Header.cxx.

                                      {
    return m_active_fibres;
  }

bcn()

int L1Topo::Header::bcn

(

)

const

access method

Definition at line 72 of file L1Topo/L1TopoRDO/src/Header.cxx.

                       {
    return m_bcn;
  }

bcn_offset()

uint32_t L1Topo::Header::bcn_offset

(

)

const

access method

Definition at line 69 of file L1Topo/L1TopoRDO/src/Header.cxx.

                                   {
    return m_bcn_offset;
  }

bcn_sign()

uint32_t L1Topo::Header::bcn_sign

(

)

const

access method

Definition at line 66 of file L1Topo/L1TopoRDO/src/Header.cxx.

                                 {
    return m_bcn_sign;
  }

decode()

void L1Topo::Header::decode ( )

protected

method used by constructor to decode word

Definition at line 27 of file L1Topo/L1TopoRDO/src/Header.cxx.

                     {
    // assert (L1Topo::blockType(m_word)==L1Topo::BlockTypes::HEADER);
    m_bcn_offset = m_word & 0x7;
    m_bcn_sign = (m_word>>3) & 0x1;
    m_last_block = (m_word>>4) & 0x1;
    m_fpga = (m_word >> 5 ) & 0x1;
    m_payload_crc = (m_word>>8) & 0xff;
    m_active_fibres = (m_word>>16) & 0xff;
    m_version = (m_word>>24) & 0xf;
    return;
  }

encode()

void L1Topo::Header::encode ( )

protected

method used by constructor to encode word

Definition at line 39 of file L1Topo/L1TopoRDO/src/Header.cxx.

                     {
    m_word = static_cast<uint32_t>(L1Topo::BlockTypes::HEADER) << 28;
    m_word |= (m_bcn_offset & 0x7);
    m_word |= (m_bcn_sign & 0x1) << 3;
    m_word |= (m_last_block & 0x1) << 4;
    m_word |= (m_fpga & 0x1) << 5;
    m_word |= (m_payload_crc & 0xff) << 8;
    m_word |= (m_active_fibres & 0xff) << 16;
    m_word |= (m_version & 0xf) << 24;
    return;
  }

fpga()

uint32_t L1Topo::Header::fpga

(

)

const

access method

Definition at line 60 of file L1Topo/L1TopoRDO/src/Header.cxx.

                             {
    return m_fpga;
  }

last_block()

uint32_t L1Topo::Header::last_block

(

)

const

access method

Definition at line 63 of file L1Topo/L1TopoRDO/src/Header.cxx.

                                   {
    return m_last_block;
  }

payload_crc()

uint32_t L1Topo::Header::payload_crc

(

)

const

access method

Definition at line 57 of file L1Topo/L1TopoRDO/src/Header.cxx.

                                    {
    return m_payload_crc;
  }

version()

uint32_t L1Topo::Header::version

(

)

const

access method

Definition at line 51 of file L1Topo/L1TopoRDO/src/Header.cxx.

                                {
    return m_version;
  }

word()

uint32_t L1Topo::Header::word

(

)

const

access method

Definition at line 75 of file L1Topo/L1TopoRDO/src/Header.cxx.

                             {
    return m_word;
  }

Member Data Documentation

m_active_fibres

uint32_t L1Topo::Header::m_active_fibres

private

Definition at line 49 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

m_bcn

int L1Topo::Header::m_bcn

private

Definition at line 55 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

m_bcn_offset

uint32_t L1Topo::Header::m_bcn_offset

private

Definition at line 54 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

m_bcn_sign

uint32_t L1Topo::Header::m_bcn_sign

private

Definition at line 53 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

m_fpga

uint32_t L1Topo::Header::m_fpga

private

Definition at line 51 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

m_last_block

uint32_t L1Topo::Header::m_last_block

private

Definition at line 52 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

m_payload_crc

uint32_t L1Topo::Header::m_payload_crc

private

Definition at line 50 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

m_version

uint32_t L1Topo::Header::m_version

private

Definition at line 48 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

m_word

uint32_t L1Topo::Header::m_word

private

Definition at line 56 of file L1Topo/L1TopoRDO/L1TopoRDO/Header.h.

---

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

• L1Topo/L1TopoRDO/L1TopoRDO/Header.h
• L1Topo/L1TopoRDO/src/Header.cxx