unit_MFRC522.hpp File Reference

MFRC522 Unit for M5UnitUnified. More...

#include <M5UnitComponent.hpp>
#include <nfc/nfc.hpp>
#include <nfc/a/nfca.hpp>

Go to the source code of this file.

Classes
class	m5::unit::UnitMFRC522
	Radio frequency identification unit. More...
struct	m5::unit::UnitMFRC522::config_t
	Settings for begin. More...

Namespaces
namespace	m5
	Top level namespace of M5Stack.

Enumerations
enum class	m5::unit::mfrc522::Command : uint8_t {   Idle , Mem , GenerateRandomID , CalcCRC ,   Transmit , NoCmdChange = 0x07 , Receive , Transceive = 0x0C ,   MFAuthent = 0x0E , SoftReset }
	PCD command. More...
enum class	m5::unit::mfrc522::ReceiverGain : uint8_t {   dB18 , dB23 , dB33 = 0x04 , dB38 ,   dB43 , dB48 }
	The receiver’s signal voltage gain factor. More...
enum class	m5::unit::mfrc522::Error : uint8_t {   OCCUR_COLLISION , UID_NOT_COMPLETED , ARGUMENT = 0x80 , COMMUNICATION ,   REGISTER , TIMEOUT , MIFARE_NACK , CRC ,   AUTH , CANNOT_RESOLVE_COLLISION , INTERNAL = 0xFE , UNKNOWN = 0xFF }
	API error code. More...

Variables
constexpr uint16_t	m5::unit::mfrc522::MAX_FIFO_DEPTH {64}
	Maximum FIFO depth.

Detailed Description

MFRC522 Unit for M5UnitUnified.

Enumeration Type Documentation

Command

enum class m5::unit::mfrc522::Command : uint8_t

strong

PCD command.

Enumerator
Idle	No action, cancels current command execution.
Mem	Stores 25 bytes into the internal buffer.
GenerateRandomID	Generates a 10-byte random ID number.
CalcCRC	Activates the CRC coprocessor or performs a self test.
Transmit	Transmits data from the FIFO buffer.
NoCmdChange	No command change.
Receive	Activates the receiver circuits.
Transceive	Transmits data from FIFO buffer to antenna and automatically activates the receiver after transmission
MFAuthent	Performs the MIFARE standard authentication as a reader.
SoftReset	Resets the MFRC522.

Error

enum class m5::unit::mfrc522::Error : uint8_t

strong

API error code.

Enumerator
OCCUR_COLLISION	Collision occurs.
UID_NOT_COMPLETED	UID is not yet complete.
ARGUMENT	Error caused by arguments (0x80)
COMMUNICATION	Error in communication (0x81)
REGISTER	Error by error register value (0x82)
TIMEOUT	Timeout occurs (0x83)
MIFARE_NACK	MIFARE NACK detection (0x84)
CRC	CRC error (0x85)
AUTH	Authentication error(0x86)
CANNOT_RESOLVE_COLLISION	Collision resolution failed (0x87)
INTERNAL	Internal error.
UNKNOWN	Misc.

ReceiverGain

enum class m5::unit::mfrc522::ReceiverGain : uint8_t

strong

The receiver’s signal voltage gain factor.

Enumerator
dB18	18 decibel
dB23	23 decibel
dB33	33 decibel
dB38	38 decibel
dB43	43 decibel
dB48	48 decibel