SPMOD - RFID

Overview

SPMOD_RFID (NFC module) uses FM17510 IC.

SPMOD - RFID Introduction

• Using Sipeed-SPMOD interface(2.54mm * 8PIN )，unified MaixPy board interface
• Using SP-MOD SPI to communicate with RFID module
• 64Byte TRANSCeiver buffer FIFO
• The RIFC IC is FM17510.
• Size:25.0*20.1*6.2mm

FM17510 Introduction

The FM17510 used in this module is a highly integrated non-contact reader chip working at 13.56MHz.
Supports non-contact reader mode in accordance with ISO/IEC 14443 protocol,

SPMOD_RFID pin description:

• Mode of connection:

Usage

• Process
  1. Initialization
  2. Detected and bind card
  3. Read or write data

C:

fpioa_set_function(RFID_CS_PIN, FUNC_GPIOHS0 + RFID_CS_HSNUM); // RFID_CS_PIN: 20;
fpioa_set_function(RFID_CK_PIN, FUNC_GPIOHS0 + RFID_CK_HSNUM); // RFID_CK_PIN: 21;
fpioa_set_function(RFID_MO_PIN, FUNC_GPIOHS0 + RFID_MO_HSNUM); // RFID_MO_PIN: 8;
fpioa_set_function(RFID_MI_PIN, FUNC_GPIOHS0 + RFID_MI_HSNUM); // RFID_MI_PIN: 15;

gpiohs_set_drive_mode(spi_io_cfg.hs_cs, GPIO_DM_OUTPUT);
gpiohs_set_drive_mode(spi_io_cfg.hs_clk, GPIO_DM_OUTPUT);
gpiohs_set_drive_mode(spi_io_cfg.hs_mosi, GPIO_DM_OUTPUT);
gpiohs_set_drive_mode(spi_io_cfg.hs_miso, GPIO_DM_INPUT);

// detected card
PcdRequest(0x52, type)

// auth and bind...

// read or write 16 bytes data from sector 0x11
PcdWrite(0x11, w_buf)
PcdRead(0x11, &r_buf)

MaixPy:

# 20: CS_NUM;
fm.register(20, fm.fpioa.GPIOHS20, force=True)
# set gpiohs work mode to output mode
cs = GPIO(GPIO.GPIOHS20, GPIO.OUT)

# RFID_SCK: 21; RFID_SI:8; RFID_SO: 15;
spi1 = SPI(SPI.SPI1, mode=SPI.MODE_MASTER, baudrate=600 * 1000,
        polarity=0, phase=0, bits=8, firstbit=SPI.MSB, sck=21, mosi=8, miso=15)

# Create an object of the class MFRC522
MIFAREReader = MFRC522(spi1, cs)

# detected and auth, bind...

# read or write 16 bytes data from sector 0x11
MIFAREReader.MFRC522_Write(0x11, data)
MIFAREReader.MFRC522_Read(0x11)

Runtime environments:

Result:

• C

  

• MaixPy

  

Transplant:

The following parameters need to be modified

• C

    // board_config.h
    #define RFID_CS_PIN (20)
    #define RFID_CK_PIN (21)
    #define RFID_MO_PIN (8)
    #define RFID_MI_PIN (15)
  
    #define RFID_CS_HSNUM (20)
    #define RFID_CK_HSNUM (21)
    #define RFID_MO_HSNUM (8)
    #define RFID_MI_HSNUM (15)
  

• MaixPy

    ################### config ###################
    CS_NUM = const(20)
    SPI_FREQ_KHZ = const(600)
    SPI_SCK = const(21)
    SPI_MOSI = const(8)
    SPI_MISO = const(15)
    #############################################
  

Outlook

• SPMOD_RFID Size drawing:

Resource Link