nfcb.hpp File Reference

NFC-B definitions. More...

#include "nfc/nfc.hpp"
#include <cstdint>
#include <string>
#include <cstring>

Go to the source code of this file.

Classes
struct	m5::nfc::b::PICC
	PICC for NFC-B. More...

Namespaces
namespace	m5
	Top level namespace of M5stack.
namespace	b
	NFC-B definitions.

Enumerations
enum class	m5::nfc::b::Type : uint8_t { Unknown , Unclassified }
	Type of the PICC. More...
enum class	m5::nfc::b::Require : uint8_t {   Slot1 , Slot2 , Slot4 , Slot8 ,   Slot16 }
	Number of slots required in the request/wakeup.
enum class	m5::nfc::b::Command : uint8_t {   REQ_WUPB = 0x05 , ATTRIB = 0x1D , HLTB = 0x50 , DESELECT = 0xC2 ,   DESELECT_WITH_CID = 0xCA }
	ISO/IEC 14443 Type B command (Layer 3 / activation) More...

Functions
bool	m5::nfc::b::operator== (const PICC &a, const PICC &b)
	Equal?
bool	m5::nfc::b::operator!= (const PICC &a, const PICC &b)
	Not equal?
ATQB protocol
uint16_t	m5::nfc::b::maximum_frame_length (const uint8_t protocol[3])
	Get maximum frame length from protocol bytes.
uint8_t	m5::nfc::b::maximum_frame_length_bits (const uint8_t protocol[3])
	Get maximum frame length from protocol bytes.
bool	m5::nfc::b::supports_iso14443_4 (const uint8_t protocol[3])
	Supports ISO/IEC 14443-4?
uint8_t	m5::nfc::b::get_frame_option (const uint8_t protocol[3])
	Gets the frame option bits.
uint8_t	m5::nfc::b::get_fwi (const uint8_t protocol[3])
	Gets the FWI.

Variables
constexpr uint8_t	m5::nfc::b::ATQB_LENGTH {11}
	ATQB length pupi(4) + application(4) + protocol(3)
Communication speed bits
constexpr uint8_t	m5::nfc::b::COMMUNICATION_SAME_SPEED {0x80}
constexpr uint8_t	m5::nfc::b::COMMUNICATION_SPPED_106K {0X00}
constexpr uint8_t	m5::nfc::b::COMMUNICATION_SPPED_212K_FROM_PICC {0X10}
constexpr uint8_t	m5::nfc::b::COMMUNICATION_SPPED_424K_FROM_PICC {0X20}
constexpr uint8_t	m5::nfc::b::COMMUNICATION_SPPED_847K_FROM_PICC {0X40}
constexpr uint8_t	m5::nfc::b::COMMUNICATION_SPPED_212K_TO_PICC {0X01}
constexpr uint8_t	m5::nfc::b::COMMUNICATION_SPPED_424K_TO_PICC {0X02}
constexpr uint8_t	m5::nfc::b::COMMUNICATION_SPPED_847K_TO_PICC {0X04}
Frame option bits
const uint8_t	m5::nfc::b::FRAME_OPTION_NAD {0x02}
const uint8_t	m5::nfc::b::FRAME_OPTION_CID {0x01}
Timeout
constexpr uint32_t	m5::nfc::b::TIMEOUT_REQ_WUP_B {5}
constexpr uint32_t	m5::nfc::b::TIMEOUT_ATTRIB {50}
constexpr uint32_t	m5::nfc::b::TIMEOUT_HLTB {5}
constexpr uint32_t	m5::nfc::b::TIMEOUT_DESELECT {5}

Detailed Description

NFC-B definitions.

Enumeration Type Documentation

Command

enum class m5::nfc::b::Command : uint8_t

strong

ISO/IEC 14443 Type B command (Layer 3 / activation)

Enumerator
REQ_WUPB	Request/Wakeup Type B.
ATTRIB	Attribute (activate ISO-DEP)
HLTB	Halt Type B (rarely used)
DESELECT	DESELECT.
DESELECT_WITH_CID	DESELECT with CID.

Type

enum class m5::nfc::b::Type : uint8_t

strong

Type of the PICC.

Enumerator
Unknown	Unknown type.
Unclassified	Unclassified.