nfcv.cpp File Reference

NFC-V definitions. More...

#include "nfcv.hpp"
#include "nfc/manufacturer_id.hpp"
#include <M5Utility.hpp>

Namespaces
namespace	m5
	Top level namespace of M5Stack.

Functions
Type	m5::nfc::v::identify_type (const PICC &picc)
	Identify the type from Manufacturer Code, IC Identifier, IC Reference.
uint32_t	m5::nfc::v::encode_VCD (std::vector< uint8_t > &out, const ModulationMode mode, const uint8_t *buffer, const uint32_t length, const bool high_rate=true, const bool add_crc=true)
	Encode to VCD frame.
bool	m5::nfc::v::decode_VICC (std::vector< uint8_t > &out, const uint8_t *buffer, const uint32_t length, const uint32_t ignore_bits=16)
	Decode from VICC frame.

Detailed Description

NFC-V definitions.

Function Documentation

decode_VICC()

bool m5::nfc::v::decode_VICC	(	std::vector< uint8_t > &	out,
		const uint8_t *	buffer,
		const uint32_t	length,
		const uint32_t	ignore_bits = 16 )

Decode from VICC frame.

Parameters

out	Output buffer
buffer	Input buffer
length	Input buffer length
ignore_bits	Number of trailing bits to ignore

Returns

True if successful

encode_VCD()

uint32_t m5::nfc::v::encode_VCD	(	std::vector< uint8_t > &	out,
		const ModulationMode	mode,
		const uint8_t *	buffer,
		const uint32_t	length,
		const bool	high_rate = true,
		const bool	add_crc = true )

Encode to VCD frame.

Parameters

out	Output buffer
mode	ModulationMode
buffer	Input buffer (allow nullptr )
length	Input buffer length (allow 0)
high_rate	High data rate if true
add_crc	Append CRC16 if true

Returns

Encoded size in bytes, or 0 on error

Note

Make EOF only if buffer is nullptr and length is 0

identify_type()

Type m5::nfc::v::identify_type

(

const PICC &

picc

)

Identify the type from Manufacturer Code, IC Identifier, IC Reference.

Parameters

picc	PICC information to identify

Returns

Type

Warning

Not all tags can be identified

If identification is impossible, Unclassified is returned