X-NUCLEO-NFC04A1 dynamic NFC/RFID tag IC expansion board Firmware Package

File content as of revision 0:3f1a69fc394e:

#include "x_nucleo_nfc04.h"

extern sCCFileInfo CCFileStruct;

// This is a constructor

X_Nucleo_NFC04::X_Nucleo_NFC04(I2C* i2cChannel, DigitalOut* led_1, DigitalOut* led_2, DigitalOut* led_3, DigitalOut* LPD, DigitalIn* MISO){
    mi2cChannel = i2cChannel;
    mled_1 = led_1;
    mled_2 = led_2;
    mled_3 = led_3;
    mLPD = LPD;
    mMISO = MISO;
}

/**
  * @brief  This function initialize the device
  * @param  mi2cChannel : I2C Channel
  * @param  mLPD : A digital PIN
  * @retval status(int) : Return if the write operation is succesful
  */

int X_Nucleo_NFC04::begin(I2C* mi2cChannel, DigitalOut *mLPD) {
    int ret = 0;
    
    // Light some leds
    ledOn(mled_1);
    wait_ms( 300 );
    ledOn(mled_2);

    /* NFCTAG Init */
    ret = BSP_NFCTAG_Init(mi2cChannel, mLPD);
    if(ret != NDEF_OK)
        return ret;

    /* Reset MBEN Dynamic and initializes the CCFile struct */
    BSP_NFCTAG_GetExtended_Drv()->ResetMBEN_Dyn( mi2cChannel );
    if( NfcType5_NDEFDetection( mi2cChannel) != NDEF_OK )
    {
        CCFileStruct.MagicNumber = NFCT5_MAGICNUMBER_E1_CCFILE;
        CCFileStruct.Version = NFCT5_VERSION_V1_0;
        CCFileStruct.MemorySize = ( ST25DV_MAX_SIZE / 8 ) & 0xFF;
        CCFileStruct.TT5Tag = 0x05;
        /* Init of the Type Tag 5 component (M24LR) */
        ret = NfcType5_TT5Init( mi2cChannel );
        if (ret != NDEF_OK)
            return ret;
    }
    
    ledOff( mled_1 );
    wait_ms( 300 );
    ledOff( mled_2 );
    wait_ms( 300 );
    ledOff( mled_3 );
    wait_ms( 300 );
    return NDEF_OK;
}


/**
  * @brief  This function light on selected Led
  * @param  led : Led to be lit on
  * @retval None
  */
void X_Nucleo_NFC04::ledOn(DigitalOut* led) {
    led -> write(1);
}

/**
  * @brief  This function light off selected Led
  * @param  led : Led to be lit off
  * @retval None
  */

void X_Nucleo_NFC04::ledOff(DigitalOut* led) {
    *led = 0;
}


/**
  * @brief  This function write an URI into the NFC Tag
  * @param  protocol : Protocol of the uri to write
  * @param  uri : String containing the uri to write in the NFC Tag
  * @param  info : Additional info
  * @param  mi2cChannel : Object of the I2C channel
  * @retval status(int) : Return if the write operation is succesful
  */
int X_Nucleo_NFC04::writeURI(string protocol, string uri, string info, I2C* mi2cChannel) {
    sURI_Info _URI;
    strcpy( _URI.protocol,protocol.c_str() );
    strcpy( _URI.URI_Message,uri.c_str() );
    strcpy( _URI.Information,info.c_str() );


    return NDEF_WriteURI( &_URI, mi2cChannel );
}

/**
  * @brief  This function read an URI from the NFC Tag
  * @param  mi2cChannel : Object of the I2C channel
  * @retval string : Return the string that has been read from the NFC Tag
  */

string X_Nucleo_NFC04::readURI( I2C* mi2cChannel) {
    sURI_Info uri = {"","",""};
    sRecordInfo_t recordInfo;
    // increase buffer size for bigger messages
    if(NDEF_ReadNDEF(NDEF_Buffer, mi2cChannel))
        return (string)NULL;
    
    if(NDEF_IdentifyBuffer(&recordInfo, NDEF_Buffer))
        return (string)NULL;
    if(NDEF_ReadURI(&recordInfo,&uri))
        return (string)NULL;
    return string(uri.protocol) + string(uri.URI_Message);
}


/**
  * @brief  This function write WiFi Credentials into the NFC Tag
  * @param  NetworkSSID : SSID of the WiFi Network
  * @param  AuthenticationType :
  * @param  EncryptionType :
  * @param  NetworkKey : Password of the WiFi
  * @param  mi2cChannel : Object of the I2C channel
  * @retval status(int) : Return if the write operation is succesful
  */
uint16_t X_Nucleo_NFC04::writeWiFi(string NetworkSSID, Ndef_Wifi_Authentication_t AuthenticationType, Ndef_Wifi_Encryption_t EncryptionType, string NetworkKey, I2C* mi2cChannel ){

    sWifiTokenInfo _wifi;

    strcpy( _wifi.NetworkSSID,NetworkSSID.c_str() );
    _wifi.AuthenticationType = AuthenticationType;
    _wifi.EncryptionType = EncryptionType;
    strcpy( _wifi.NetworkKey,NetworkKey.c_str() );



     return NDEF_WriteWifiToken(&_wifi, mi2cChannel );
}