A tag, as the EPC Gen2 standard calls it. More...

#include <uhf.hpp>

Public Member Functions
bool	valid () const
	Holds a usable EPC?

std::string	vendorAsString () const
	Mask designer as a printable name, "Unknown" when the identifier is not one we list.

std::string	chipAsString () const
	Chip name, "Unknown" until the tag has been identified.

Public Attributes
uint16_t	pc {}
	Protocol Control.

uint16_t	crc {}
	CRC-16 reported by the tag.

int8_t	rssi {}
	RSSI in dBm (signed)

Epc	epc {}
	EPC.

Tid	tid {}
	TID starting at word 0.

Chip	chip {Chip::Unknown}
	Identified chip, Unknown when the pair below is not listed.

Vendor	vendor {Vendor::Unknown}
	Named mask designer, Unknown when mdid is not listed.

uint16_t	mdid {}
	Raw mask-designer identifier (9 bits)

uint16_t	model_number {}
	Tag model number (12 bits)

uint16_t	serial_bits {}

uint32_t	user_memory_bits {}
	Size of the User bank, 0 when unknown. On a chip that shares a pool with the EPC this is what the bank holds at the EPC length the PC states, not a fixed property.

uint32_t	epc_max_bits {}
	Largest EPC the chip accepts, 0 when unknown.

uint32_t	permalock_block_bits {}
	BlockPermalock granularity, 0 when unknown.

bool	has_xtid {}
	XTID indicator (TID bit 08h)

bool	supports_security {}
	Security indicator (TID bit 09h)

bool	supports_file {}

bool	supports_block_permalock {}
	BlockPermaLock support, as the XTID reports it.

Detailed Description

A tag, as the EPC Gen2 standard calls it.

Detection fills the inventory half of this; identifying the tag fills the rest by reading its TID

Member Data Documentation

uint16_t m5::uhf::Tag::serial_bits {}

Length of the XTID serial, 0 when the tag has none

bool m5::uhf::Tag::supports_block_permalock {}

BlockPermaLock support, as the XTID reports it.

Warning: False means the XTID did not say so, which is not the same as the tag not having it: hardly any chip carries the segment that would. tagBlockPermalockSupport() is what answers for the chips whose datasheets do

bool m5::uhf::Tag::supports_file {}

File indicator (TID bit 0Ah)