File content as of revision 0:bea5dbf3f7d5:

/**
  ******************************************************************************
  * @file    st25dv.c 
  * @author  MMY Application Team
  * @version $Revision: 3308 $
  * @date    $Date: 2017-01-13 11:19:33 +0100 (Fri, 13 Jan 2017) $
  * @brief   This file provides set of driver functions to manage communication 
  *          between BSP and ST25DV chip.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; COPYRIGHT 2016 STMicroelectronics</center></h2>
  *
  * Licensed under ST MYLIBERTY SOFTWARE LICENSE AGREEMENT (the "License");
  * You may not use this file except in compliance with the License.
  * You may obtain a copy of the License at:
  *
  *        http://www.st.com/myliberty  
  *
  * Unless required by applicable law or agreed to in writing, software 
  * distributed under the License is distributed on an "AS IS" BASIS, 
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied,
  * AND SPECIFICALLY DISCLAIMING THE IMPLIED WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  *
  ******************************************************************************
  */ 

/* Includes ------------------------------------------------------------------*/
#include "st25dv.h"

#include "x_nucleo_nfc04.h"




/** @addtogroup BSP
  * @{
  */

/** @defgroup ST25DV ST25DV driver
  * @brief    This module implements the functions to drive the ST25DV NFC dynamic tag.
  * @details  As recommended by the STM32 Cube methodology, this driver provides a standard structure to expose the NFC tag standard API.\n
  *           It also provides an extended API through its extended driver structure.\n
  *           To be usable on any MCU, this driver calls several IOBus functions.
  *           The IOBus functions are implemented outside this driver, and are in charge of accessing the MCU peripherals used for the communication with the tag.
  * @{
  */

/* External variables --------------------------------------------------------*/
/* Private typedef -----------------------------------------------------------*/
/* Private defines -----------------------------------------------------------*/
/** @brief This component driver only supports 1 instance of the component */
#define ST25DV_MAX_INSTANCE         1

  
/* Private macros ------------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
NFCTAG_StatusTypeDef ST25DV_i2c_Init( I2C * mi2cChannel, DigitalOut* mLPD );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadID( uint8_t * const pICRef, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadICRev( uint8_t * const pICRev, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_IsDeviceReady( const uint32_t Trials, I2C * mi2cChannel);
NFCTAG_StatusTypeDef ST25DV_i2c_GetGPOStatus( uint16_t * const pGPOStatus, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ConfigureGPO( const uint16_t ITConf, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadITPulse( ST25DV_PULSE_DURATION * const pITtime, I2C * mi2cChannel);
NFCTAG_StatusTypeDef ST25DV_i2c_WriteITPulse( const ST25DV_PULSE_DURATION ITtime, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadData( uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteData( const uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadDataCurrentAddr( uint8_t * const pData, const uint16_t NbByte, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadRegister( uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte , I2C * mi2cChannel);
NFCTAG_StatusTypeDef ST25DV_i2c_WriteRegister( const uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadUID( ST25DV_UID * const pUid, I2C * mi2cChannel);
NFCTAG_StatusTypeDef ST25DV_i2c_ReadDSFID( uint8_t * const pDsfid, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadDsfidRFProtection( ST25DV_LOCK_STATUS * const pLockDsfid, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadAFI( uint8_t * const pAfi, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadAfiRFProtection( ST25DV_LOCK_STATUS * const pLockAfi, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadI2CProtectZone( ST25DV_I2C_PROT_ZONE * const pProtZone, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteI2CProtectZonex( const ST25DV_PROTECTION_ZONE Zone, const ST25DV_PROTECTION_CONF ReadWriteProtection, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadLockCCFile( ST25DV_LOCK_CCFILE * const pLockCCFile, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteLockCCFile( const ST25DV_CCFILE_BLOCK NbBlockCCFile, const ST25DV_LOCK_STATUS LockCCFile, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadLockCFG( ST25DV_LOCK_STATUS * const pLockCfg, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteLockCFG( const ST25DV_LOCK_STATUS LockCfg, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_PresentI2CPassword( const ST25DV_PASSWD PassWord, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteI2CPassword( const ST25DV_PASSWD PassWord, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadRFZxSS( const ST25DV_PROTECTION_ZONE Zone, ST25DV_RF_PROT_ZONE * const pRfprotZone, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteRFZxSS( const ST25DV_PROTECTION_ZONE Zone, const ST25DV_RF_PROT_ZONE RfProtZone , I2C * mi2cChannel);
NFCTAG_StatusTypeDef ST25DV_i2c_ReadEndZonex( const ST25DV_END_ZONE EndZone, uint8_t * const pEndZ, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteEndZonex( const ST25DV_END_ZONE EndZone, const uint8_t EndZ, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_InitEndZone( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_CreateUserZone( uint16_t Zone1Length, uint16_t Zone2Length, uint16_t Zone3Length, uint16_t Zone4Length, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMemSize( ST25DV_MEM_SIZE * const pSizeInfo, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadEHMode( ST25DV_EH_MODE_STATUS * const pEH_mode, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteEHMode( const ST25DV_EH_MODE_STATUS EH_mode, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadRFMngt( ST25DV_RF_MNGT * const pRF_Mngt, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteRFMngt( const uint8_t Rfmngt, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFDisable( ST25DV_EN_STATUS * const pRFDisable, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_SetRFDisable( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ResetRFDisable( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFSleep( ST25DV_EN_STATUS * const pRFSleep, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_SetRFSleep( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ResetRFSleep( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMBMode( ST25DV_EN_STATUS * const pMB_mode, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteMBMode( const ST25DV_EN_STATUS MB_mode, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMBWDG( uint8_t * const pWdgDela, I2C * mi2cChannely );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteMBWDG( const uint8_t WdgDelay, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMailboxData( uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteMailboxData( const uint8_t * const pData, const uint16_t NbByte, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMailboxRegister( uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteMailboxRegister( const uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadI2CSecuritySession_Dyn( ST25DV_I2CSSO_STATUS * const pSession, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadITSTStatus_Dyn( uint8_t * const pITStatus, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadGPO_Dyn( uint8_t *GPOConfig, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetGPO_en_Dyn( ST25DV_EN_STATUS * const pGPO_en, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_SetGPO_en_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ResetGPO_en_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadEHCtrl_Dyn( ST25DV_EH_CTRL * const pEH_CTRL, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetEHENMode_Dyn( ST25DV_EN_STATUS * const pEH_Val, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_SetEHENMode_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ResetEHENMode_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetEHON_Dyn( ST25DV_EN_STATUS * const pEHON, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFField_Dyn( ST25DV_FIELD_STATUS * const pRF_Field, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetVCC_Dyn( ST25DV_VCC_STATUS * const pVCC, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadRFMngt_Dyn( ST25DV_RF_MNGT * const pRF_Mngt, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_WriteRFMngt_Dyn( const uint8_t RF_Mngt, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFDisable_Dyn( ST25DV_EN_STATUS * const pRFDisable, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_SetRFDisable_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ResetRFDisable_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFSleep_Dyn( ST25DV_EN_STATUS * const pRFSleep, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_SetRFSleep_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ResetRFSleep_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMBCtrl_Dyn( ST25DV_MB_CTRL_DYN_STATUS * const pCtrlStatus, I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_GetMBEN_Dyn( ST25DV_EN_STATUS * const pMBEN, I2C * mi2cChannel);
NFCTAG_StatusTypeDef ST25DV_i2c_SetMBEN_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ResetMBEN_Dyn( I2C * mi2cChannel );
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMBLength_Dyn( uint8_t * const pMBLength, I2C * mi2cChannel );

/* Global variables ---------------------------------------------------------*/
/**
  * @brief    Standard NFC tag driver API for the ST25DV.
  * @details  Provides a generic way to access the ST25DV implementation of the NFC tag standard driver functions. 
  */
NFCTAG_DrvTypeDef St25Dv_i2c_Drv =
{
  ST25DV_i2c_Init,
  ST25DV_i2c_ReadID,
  ST25DV_i2c_IsDeviceReady,
  ST25DV_i2c_GetGPOStatus,
  ST25DV_i2c_ConfigureGPO,
  ST25DV_i2c_ReadData,
  ST25DV_i2c_WriteData,
  ST25DV_i2c_ReadRegister,
  ST25DV_i2c_WriteRegister,
  NULL
};

/**
  * @brief    Extended NFC tag driver API for the ST25DV.
  * @details  Provides a generic way to access the ST25DV extended driver functions. 
  */
NFCTAG_ExtDrvTypeDef St25Dv_i2c_ExtDrv =
{
  ST25DV_i2c_ReadICRev,
  ST25DV_i2c_WriteITPulse,
  ST25DV_i2c_ReadITPulse,
  ST25DV_i2c_ReadDataCurrentAddr,
  ST25DV_i2c_ReadUID,
  ST25DV_i2c_ReadDSFID,
  ST25DV_i2c_ReadDsfidRFProtection,
  ST25DV_i2c_ReadAFI,
  ST25DV_i2c_ReadAfiRFProtection,
  ST25DV_i2c_ReadI2CProtectZone,
  ST25DV_i2c_WriteI2CProtectZonex,
  ST25DV_i2c_ReadLockCCFile,
  ST25DV_i2c_WriteLockCCFile,
  ST25DV_i2c_ReadLockCFG,
  ST25DV_i2c_WriteLockCFG,
  ST25DV_i2c_PresentI2CPassword,
  ST25DV_i2c_WriteI2CPassword,
  ST25DV_i2c_ReadRFZxSS,
  ST25DV_i2c_WriteRFZxSS,
  ST25DV_i2c_ReadEndZonex,
  ST25DV_i2c_WriteEndZonex,
  ST25DV_i2c_InitEndZone,
  ST25DV_i2c_CreateUserZone,
  ST25DV_i2c_ReadMemSize,
  ST25DV_i2c_ReadEHMode,
  ST25DV_i2c_WriteEHMode,
  ST25DV_i2c_ReadRFMngt,
  ST25DV_i2c_WriteRFMngt,
  ST25DV_i2c_GetRFDisable,
  ST25DV_i2c_SetRFDisable,
  ST25DV_i2c_ResetRFDisable,
  ST25DV_i2c_GetRFSleep,
  ST25DV_i2c_SetRFSleep,
  ST25DV_i2c_ResetRFSleep,
  ST25DV_i2c_ReadMBMode,
  ST25DV_i2c_WriteMBMode,
  ST25DV_i2c_ReadMBWDG,
  ST25DV_i2c_WriteMBWDG,
  ST25DV_i2c_ReadMailboxData,
  ST25DV_i2c_WriteMailboxData,
  ST25DV_i2c_ReadMailboxRegister,
  ST25DV_i2c_WriteMailboxRegister,
  ST25DV_i2c_ReadI2CSecuritySession_Dyn,
  ST25DV_i2c_ReadITSTStatus_Dyn,
  ST25DV_i2c_ReadGPO_Dyn,
  ST25DV_i2c_GetGPO_en_Dyn,
  ST25DV_i2c_SetGPO_en_Dyn,
  ST25DV_i2c_ResetGPO_en_Dyn,
  ST25DV_i2c_ReadEHCtrl_Dyn,
  ST25DV_i2c_GetEHENMode_Dyn,
  ST25DV_i2c_SetEHENMode_Dyn,
  ST25DV_i2c_ResetEHENMode_Dyn,
  ST25DV_i2c_GetEHON_Dyn,
  ST25DV_i2c_GetRFField_Dyn,
  ST25DV_i2c_GetVCC_Dyn,
  ST25DV_i2c_ReadRFMngt_Dyn,
  ST25DV_i2c_WriteRFMngt_Dyn,
  ST25DV_i2c_GetRFDisable_Dyn,
  ST25DV_i2c_SetRFDisable_Dyn,
  ST25DV_i2c_ResetRFDisable_Dyn,
  ST25DV_i2c_GetRFSleep_Dyn,
  ST25DV_i2c_SetRFSleep_Dyn,
  ST25DV_i2c_ResetRFSleep_Dyn,
  ST25DV_i2c_ReadMBCtrl_Dyn,
  ST25DV_i2c_GetMBEN_Dyn,
  ST25DV_i2c_SetMBEN_Dyn,
  ST25DV_i2c_ResetMBEN_Dyn,
  ST25DV_i2c_ReadMBLength_Dyn
};


/** @brief ST25DV instances by address. */
uint8_t aSt25Dv[ST25DV_MAX_INSTANCE] = {0};


/* Public functions ---------------------------------------------------------*/
/**
  * @brief  ST25DV nfctag Initialization.
  * @param mi2cChannel : I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_Init( I2C* mi2cChannel, DigitalOut * mLPD )
{
  /* Configure the low level interface */
  return ST25DV_IO_Init( mi2cChannel, mLPD );
}

/**
  * @brief  Reads the ST25DV ID.
  * @param  pICRef Pointeron a uint8_t used to return the ST25DV ID.
  * @param mi2cChannel : I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadID( uint8_t * const pICRef, I2C * mi2cChannel )
{
  /* Read ICRef on device */
  return ST25DV_i2c_ReadRegister( pICRef, ST25DV_ICREF_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the ST25DV IC Revision.
  * @param  pICRev Pointer on the uint8_t used to return the ST25DV IC Revision number.
  * @param mi2cChannel : I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadICRev( uint8_t * const pICRev, I2C * mi2cChannel )
{
  /* Read ICRev on device */
  return ST25DV_i2c_ReadRegister( pICRev, ST25DV_ICREV_REG, 1, mi2cChannel );
}

/**
  * @brief    Checks the ST25DV availability.
  * @details  The ST25DV I2C is NACKed when a RF communication is on-going.
  *           This function determines if the ST25DV is ready to answer an I2C request. 
  * @param    Trials Max number of tentative.
  * @param mi2cChannel : I2C channel
  * @retval   NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_IsDeviceReady( const uint32_t Trials, I2C * mi2cChannel)
{
  /* Test communication with device */
  return ST25DV_IO_IsDeviceReady( ST25DV_ADDR_DATA_I2C, Trials, mi2cChannel);
}

/**
  * @brief  Reads the ST25DV GPO configuration.
  * @param  pGPOStatus  Pointer on a uint16_t used to return the current GPO consiguration, as:
  *                     - RFUSERSTATE = 0x01
  *                     - RFBUSY = 0x02
  *                     - RFINTERRUPT = 0x04
  *                     - FIELDFALLING = 0x08
  *                     - FIELDRISING = 0x10
  *                     - RFPUTMSG = 0x20
  *                     - RFGETMSG = 0x40
  *                     - RFWRITE = 0x80
  * @param mi2cChannel : I2C channel
  * @retval   NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetGPOStatus( uint16_t * const pGPOStatus, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read value of GPO register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_GPO_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
    return status;

  /* Extract GPO configuration */
  *pGPOStatus = (uint16_t)reg_value;
  
  return NFCTAG_OK;
}

/**
  * @brief    Configures the ST25DV GPO.
  * @details  Needs the I2C Password presentation to be effective.
  * @param    ITConf Provides the GPO configuration to apply:
  *           - RFUSERSTATE = 0x01
  *           - RFBUSY = 0x02
  *           - RFINTERRUPT = 0x04
  *           - FIELDFALLING = 0x08
  *           - FIELDRISING = 0x10
  *           - RFPUTMSG = 0x20
  *           - RFGETMSG = 0x40
  *           - RFWRITE = 0x80
  *
  * @param mi2cChannel : I2C channel
  *
  * @retval   NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ConfigureGPO( const uint16_t ITConf, I2C * mi2cChannel )
{
  /* Write GPO configuration to register */
  return ST25DV_i2c_WriteRegister( (uint8_t *)&ITConf, ST25DV_GPO_REG, 1, mi2cChannel );
}


/**
  * @brief  Reads the ST25DV ITtime duration for the GPO pulses.
  * @param  pITtime Pointer used to return the coefficient for the GPO Pulse duration (Pulse duration = 302,06 us - ITtime * 512 / fc).
  * @param  mi2cChannel  I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadITPulse( ST25DV_PULSE_DURATION * const pITtime, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read ITtime register value */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_ITTIME_REG, 1,  mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract delay coefficient value */
  *pITtime = (ST25DV_PULSE_DURATION)reg_value;
  
  return NFCTAG_OK;
}

/**
  * @brief    Configures the ST25DV ITtime duration for the GPO pulse.
  * @details  Needs the I2C Password presentation to be effective.
  * @param    ITtime Coefficient for the Pulse duration to be written (Pulse duration = 302,06 us - ITtime * 512 / fc)
  * @param    mi2cChannel  I2C channel
  * @retval   NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteITPulse( const ST25DV_PULSE_DURATION ITtime, I2C * mi2cChannel )
{
  uint8_t reg_value;
  
  /* prepare data to write */
  reg_value = (uint8_t)ITtime;
  
  /* Write value for ITtime register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_ITTIME_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads N bytes of Data, starting from the specified I2C address.
  * @param  pData   Pointer used to return the read data.
  * @param  TarAddr I2C data memory address to read.
  * @param  NbByte  Number of bytes to be read.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadData( uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel)
{
  /* Read Data in user memory */
  return ST25DV_IO_MemRead( pData, ST25DV_ADDR_DATA_I2C, TarAddr, NbByte, mi2cChannel );
}

/**
  * @brief  Writes N bytes of Data starting from the specified I2C Address.
  * @param  pData   Pointer on the data to be written.
  * @param  TarAddr I2C data memory address to be written.
  * @param  NbByte  Number of bytes to be written.
  * @param mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteData( const uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C* mi2cChannel )
{ 
  NFCTAG_StatusTypeDef ret;
  NFCTAG_StatusTypeDef pollstatus;
  uint16_t split_data_nb;
  const uint8_t *pdata_index = (const uint8_t *)pData;

  uint16_t bytes_to_write = NbByte;
  uint16_t mem_addr = TarAddr;
  
  /* ST25DV can write a maximum of 256 bytes in EEPROM per i2c communication */
  do
  {
    /* Split write if data to write is superior of max write bytes for ST25DV */
    if( bytes_to_write > ST25DV_MAX_WRITE_BYTE )
    {
      /* DataSize higher than max page write, copy data by page */
      split_data_nb = (uint16_t)ST25DV_MAX_WRITE_BYTE;
    }
    else
    {
      /* DataSize lower or equal to max page write, copy only last bytes */
      split_data_nb = bytes_to_write;
    }
    /* Write split_data_nb bytes in memory */
    ret = ST25DV_IO_MemWrite( pdata_index, ST25DV_ADDR_DATA_I2C, mem_addr, split_data_nb, mi2cChannel);

    Timer t;
    /* POLLING, NEW CODE */
    if( ret == 0 )
    {
      /* Poll until EEPROM is available */

      int ms = 0;
      /* Wait until ST25DV is ready or timeout occurs */
      do
      {
        t.start();
        pollstatus = ST25DV_IO_IsDeviceReady( ST25DV_ADDR_DATA_I2C , 1, mi2cChannel);
        ms = t.read_ms();
        t.stop();
      } while( ( ms  < ST25DV_I2C_TIMEOUT) && (pollstatus != NFCTAG_OK) );


      if( pollstatus != NFCTAG_OK )
      {
        return NFCTAG_TIMEOUT;
      }
    }

    /* update index, dest address, size for next write */
    pdata_index += split_data_nb;
    mem_addr += split_data_nb;
    bytes_to_write -= split_data_nb;
  }
  while( ( bytes_to_write > 0 ) && ( ret == NFCTAG_OK ) );
  
  return ret;
}

/**
  * @brief  Reads N bytes of Data, starting at current address.
  * @param  pData   Pointer used to return the read data.
  * @param  NbByte  Number of bytes to be read.
  * @param mi2cChannel : I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadDataCurrentAddr( uint8_t * const pData, const uint16_t NbByte, I2C* mi2cChannel )
{
  /* Read Data in user memory */
  return ST25DV_IO_Read( pData, ST25DV_ADDR_DATA_I2C, NbByte, mi2cChannel );
}

/**
  * @brief  Reads N bytes from Registers, starting at the specified I2C address.
  * @param  pData   Pointer used to return the read data.
  * @param  TarAddr I2C memory address to be read.
  * @param  NbByte  Number of bytes to be read.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadRegister( uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel )
{  
  /* Read Data in system memory */
  return ST25DV_IO_MemRead( pData, ST25DV_ADDR_SYST_I2C, TarAddr, NbByte, mi2cChannel );
}

/**
  * @brief    Writes N bytes to the specified register.
  * @details  Needs the I2C Password presentation to be effective.
  * @param    pData   Pointer on the data to be written.
  * @param    TarAddr I2C register address to written.
  * @param    NbByte  Number of bytes to be written.
  * @param    mi2cChannel I2C channel
  * @return   NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteRegister( const uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel )
{ 
  NFCTAG_StatusTypeDef ret;
  NFCTAG_StatusTypeDef pollstatus;
  uint8_t split_data_nb;
  uint16_t bytes_to_write = NbByte;
  uint16_t mem_addr = TarAddr;
  const uint8_t *pdata_index = (const uint8_t *)pData;
  
  /* ST25DV can write a maximum of 256 bytes in EEPROM per i2c communication */
  do
  {
    /* Split write if data to write is superior of max write bytes for ST25DV */
    if( bytes_to_write > ST25DV_MAX_WRITE_BYTE )
    {
      /* DataSize higher than max page write, copy data by page */
      split_data_nb = (uint8_t)ST25DV_MAX_WRITE_BYTE;
    }
    else
    {
      /* DataSize lower or equal to max page write, copy only last bytes */
      split_data_nb = bytes_to_write;
    }
    /* Write split_data_nb bytes in register */
    ret = ST25DV_IO_MemWrite( pdata_index, ST25DV_ADDR_SYST_I2C, mem_addr, split_data_nb, mi2cChannel);

    Timer t;
    /* POLLING, NEW CODE */
    if( ret == 0 )
    {
        int ms = 0;
         /* Wait until ST25DV is ready or timeout occurs */
         do
         {
           t.start();
           pollstatus = ST25DV_IO_IsDeviceReady( ST25DV_ADDR_DATA_I2C , 1, mi2cChannel);
           ms = t.read_ms();
           t.stop();
         } while( ( ms  < ST25DV_I2C_TIMEOUT) && (pollstatus != NFCTAG_OK) );

      if( pollstatus != NFCTAG_OK )
      {
        return NFCTAG_TIMEOUT;
      }
    }


    /* update index, dest address, size for next write */
    pdata_index += split_data_nb;
    mem_addr += split_data_nb;
    bytes_to_write -= split_data_nb;
  }
  while( ( bytes_to_write > 0 ) && ( ret == NFCTAG_OK ) );
  


  return ret;
}

/**
  * @brief  Reads the ST25DV UID.
  * @param  pUid Pointer used to return the ST25DV UID value.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadUID( ST25DV_UID * const pUid, I2C * mi2cChannel )
{
  uint8_t reg_value[8];
  uint8_t i;
  NFCTAG_StatusTypeDef status;
  
  /* Read value of UID registers */
  status = ST25DV_i2c_ReadRegister( reg_value, ST25DV_UID_REG, 8,  mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Store information in 2 WORD */
  pUid->MsbUid = 0;
  
  for( i = 0; i < 4; i++ )
  {
    pUid->MsbUid = (pUid->MsbUid << 8) | reg_value[7 - i];
  }
  
  pUid->LsbUid = 0;
  
  for( i = 0; i < 4; i++ )
  {
    pUid->LsbUid = (pUid->LsbUid << 8) | reg_value[3 - i];
  }
  
  return NFCTAG_OK;
}

/**
  * @brief  Reads the ST25DV DSFID.
  * @param  pDsfid Pointer used to return the ST25DV DSFID value.
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadDSFID( uint8_t * const pDsfid, I2C * mi2cChannel )
{
  /* Read DSFID register */
  return ST25DV_i2c_ReadRegister( pDsfid, ST25DV_DSFID_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the ST25DV DSFID RF Lock state.
  * @param  pLockDsfid Pointer on a ST25DV_LOCK_STATUS used to return the DSFID lock state.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadDsfidRFProtection( ST25DV_LOCK_STATUS * const pLockDsfid, I2C * mi2cChannel)
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_LOCKDSFID_REG, 1 , mi2cChannel);
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract Lock Status */
  if( reg_value == 0 )
  {
    *pLockDsfid = ST25DV_UNLOCKED;
  }
  else
  {
    *pLockDsfid = ST25DV_LOCKED;
  }
  return NFCTAG_OK;
}

/**
  * @brief  Reads the ST25DV AFI.
  * @param  pAfi Pointer used to return the ST25DV AFI value.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadAFI( uint8_t * const pAfi, I2C * mi2cChannel )
{
  /* Read AFI register */
  return ST25DV_i2c_ReadRegister( pAfi, ST25DV_AFI_REG, 1 , mi2cChannel);
}

/**
  * @brief  Reads the AFI RF Lock state.
  * @param  pLockAfi Pointer on a ST25DV_LOCK_STATUS used to return the ASFID lock state.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadAfiRFProtection( ST25DV_LOCK_STATUS * const pLockAfi, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_LOCKAFI_REG, 1,  mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract Lock Status */
  if( reg_value == 0 )
  {
    *pLockAfi = ST25DV_UNLOCKED;
  }
  else
  {
    *pLockAfi = ST25DV_LOCKED;
  }
  return NFCTAG_OK;
}

/**
  * @brief  Reads the I2C Protected Area state.
  * @param  pProtZone Pointer on a ST25DV_I2C_PROT_ZONE structure used to return the Protected Area state.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadI2CProtectZone( ST25DV_I2C_PROT_ZONE * const pProtZone, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read value of I2c Protected Zone register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_I2CZSS_REG, 1,  mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Dispatch information to corresponding struct member */
  pProtZone->ProtectZone1 = (ST25DV_PROTECTION_CONF)( (reg_value & ST25DV_I2CZSS_PZ1_MASK) >> ST25DV_I2CZSS_PZ1_SHIFT );
  pProtZone->ProtectZone2 = (ST25DV_PROTECTION_CONF)( (reg_value & ST25DV_I2CZSS_PZ2_MASK) >> ST25DV_I2CZSS_PZ2_SHIFT );
  pProtZone->ProtectZone3 = (ST25DV_PROTECTION_CONF)( (reg_value & ST25DV_I2CZSS_PZ3_MASK) >> ST25DV_I2CZSS_PZ3_SHIFT );
  pProtZone->ProtectZone4 = (ST25DV_PROTECTION_CONF)( (reg_value & ST25DV_I2CZSS_PZ4_MASK) >> ST25DV_I2CZSS_PZ4_SHIFT );
  
  return NFCTAG_OK;
}

/**
  * @brief    Sets the I2C write-protected state to an EEPROM Area.
  * @details  Needs the I2C Password presentation to be effective.
  * @param    Zone                ST25DV_PROTECTION_ZONE value coresponding to the area to protect.
  * @param    ReadWriteProtection ST25DV_PROTECTION_CONF value corresponding to the protection to be set.
  * @param  mi2cChannel I2C channel
  * @return   NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteI2CProtectZonex( const ST25DV_PROTECTION_ZONE Zone, const ST25DV_PROTECTION_CONF ReadWriteProtection, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual i2c Zone Security Status */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_I2CZSS_REG, 1, mi2cChannel);
  if( status != NFCTAG_OK )
    return status;
  
  /* Compute and update new i2c Zone Security Status */
  switch( Zone )
  {
    case ST25DV_PROT_ZONE1:
      reg_value &= ST25DV_I2CZSS_PZ1_FIELD;
      /* Read protection is not allowed for Zone 1 */
      reg_value |= (ReadWriteProtection & 0x01) << ST25DV_I2CZSS_PZ1_SHIFT;
      break;
    case ST25DV_PROT_ZONE2:
      reg_value &= ST25DV_I2CZSS_PZ2_FIELD;
      reg_value |= ReadWriteProtection << ST25DV_I2CZSS_PZ2_SHIFT;
      break;
    case ST25DV_PROT_ZONE3:
      reg_value &= ST25DV_I2CZSS_PZ3_FIELD;
      reg_value |= ReadWriteProtection << ST25DV_I2CZSS_PZ3_SHIFT;
      break;
    case ST25DV_PROT_ZONE4:
      reg_value &= ST25DV_I2CZSS_PZ4_FIELD;
      reg_value |= ReadWriteProtection << ST25DV_I2CZSS_PZ4_SHIFT;
      break;
    
    default:
      return NFCTAG_ERROR;
  }
  
  /* Write I2CZSS register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_I2CZSS_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the CCile protection state.
  * @param  pLockCCFile Pointer on a ST25DV_LOCK_CCFILE value corresponding to the lock state of the CCFile.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadLockCCFile( ST25DV_LOCK_CCFILE * const pLockCCFile, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Get actual LOCKCCFILE register value */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_LOCKCCFILE_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract CCFile block information */
  if( (reg_value & ST25DV_LOCKCCFILE_BLCK0_MASK)  == ST25DV_LOCKCCFILE_BLCK0_MASK )
  {
    pLockCCFile->LckBck0 = ST25DV_LOCKED;
  }
  else
  {
    pLockCCFile->LckBck0 = ST25DV_UNLOCKED;
  }
  
  if( (reg_value & ST25DV_LOCKCCFILE_BLCK1_MASK)  == ST25DV_LOCKCCFILE_BLCK1_MASK )
  {
    pLockCCFile->LckBck1 = ST25DV_LOCKED;
  }
  else
  {
    pLockCCFile->LckBck1 = ST25DV_UNLOCKED;
  }
  
  return status;
}

/**
  * @brief  Locks the CCile to prevent any RF write access.
  * @details  Needs the I2C Password presentation to be effective.
  * @param  NbBlockCCFile ST25DV_CCFILE_BLOCK value corresponding to the number of blocks to be locked.
  * @param  LockCCFile    ST25DV_LOCK_CCFILE value corresponding to the lock state to apply on the CCFile.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteLockCCFile( const ST25DV_CCFILE_BLOCK NbBlockCCFile, const ST25DV_LOCK_STATUS LockCCFile, I2C * mi2cChannel )
{
  uint8_t reg_value;
  
  /* Configure value to write on register */
  if( NbBlockCCFile == ST25DV_CCFILE_1BLCK )
  {
    if( LockCCFile == ST25DV_LOCKED )
    {
      reg_value = ST25DV_LOCKCCFILE_BLCK0_MASK;
    }
    else
    {
      reg_value = 0x00;
    }
  }
  else
  {
    if( LockCCFile == ST25DV_LOCKED )
    {
      reg_value = ST25DV_LOCKCCFILE_BLCK0_MASK | ST25DV_LOCKCCFILE_BLCK1_MASK;
    }
    else
    {
      reg_value = 0x00;
    }
  }
  
  /* Write LOCKCCFILE register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_LOCKCCFILE_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the Cfg registers protection.
  * @param  pLockCfg Pointer on a ST25DV_LOCK_STATUS value corresponding to the Cfg registers lock state.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadLockCFG( ST25DV_LOCK_STATUS * const pLockCfg, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Get actual LOCKCCFILE register value */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_LOCKCFG_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }

  /* Extract LOCKCFG block information */
  if( (reg_value & ST25DV_LOCKCFG_B0_MASK) == ST25DV_LOCKCFG_B0_MASK )
  {
    *pLockCfg = ST25DV_LOCKED;
  }
  else
  {
    *pLockCfg = ST25DV_UNLOCKED;
  }
  return NFCTAG_OK;  
}

/**
  * @brief  Lock/Unlock the Cfg registers, to prevent any RF write access.
  * @details  Needs the I2C Password presentation to be effective.
  * @param  LockCfg ST25DV_LOCK_STATUS value corresponding to the lock state to be written.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteLockCFG( const ST25DV_LOCK_STATUS LockCfg, I2C * mi2cChannel )
{
  uint8_t reg_value;
  
  /* Configure value to write on register */
  reg_value = (uint8_t)LockCfg;
  
  /* Write LOCKCFG register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_LOCKCFG_REG, 1,  mi2cChannel );
}

/**
  * @brief  Presents I2C password, to authorize the I2C writes to protected areas.
  * @param  PassWord Password value on 32bits
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_PresentI2CPassword( const ST25DV_PASSWD PassWord, I2C * mi2cChannel )
{
  uint8_t ai2c_message[17] = {0};
  uint8_t i;
  
  /* Build I2C Message with Password + Validation code 0x09 + Password */
  ai2c_message[8] = 0x09;
  for( i = 0; i < 4; i++ )
  {
    ai2c_message[i] = ( PassWord.MsbPasswd >> ( (3 - i) * 8) ) & 0xFF;
    ai2c_message[i + 4] = ( PassWord.LsbPasswd >> ( (3 - i) * 8) ) & 0xFF;
    ai2c_message[i + 9] = ai2c_message[i];
    ai2c_message[i + 13] = ai2c_message[i + 4];
  };
  
  /* Present password to ST25DV */
  return ST25DV_i2c_WriteRegister( ai2c_message, ST25DV_I2CPASSWD_REG, 17, mi2cChannel );
}

/**
  * @brief  Writes a new I2C password.
  * @details  Needs the I2C Password presentation to be effective.
  * @param  PassWord New I2C PassWord value on 32bits.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteI2CPassword( const ST25DV_PASSWD PassWord, I2C * mi2cChannel )
{
  uint8_t ai2c_message[17] = {0};
  uint8_t i;
  
  /* Build I2C Message with Password + Validation code 0x07 + Password */
  ai2c_message[8] = 0x07;

  for( i = 0; i < 4; i++ )
  {
    ai2c_message[i] = ( PassWord.MsbPasswd >> ( (3 - i) * 8) ) & 0xFF;
    ai2c_message[i + 4] = ( PassWord.LsbPasswd >> ( (3 - i) * 8) ) & 0xFF;
    ai2c_message[i + 9] = ai2c_message[i];
    ai2c_message[i + 13] = ai2c_message[i + 4];
  };
  
  /* Write new password in I2CPASSWD register */
  return ST25DV_i2c_WriteRegister( ai2c_message, ST25DV_I2CPASSWD_REG, 17, mi2cChannel );
}

/**
  * @brief  Reads the RF Zone Security Status (defining the allowed RF accesses).
  * @param  Zone        ST25DV_PROTECTION_ZONE value coresponding to the protected area.
  * @param  pRfprotZone Pointer on a ST25DV_RF_PROT_ZONE value corresponding to the area protection state.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadRFZxSS( const ST25DV_PROTECTION_ZONE Zone, ST25DV_RF_PROT_ZONE * const pRfprotZone, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  uint16_t sector_security_addr;
  
  /* Select Sector Security register address */
  switch( Zone )
  {
    case ST25DV_PROT_ZONE1:
      sector_security_addr = ST25DV_RFZ1SS_REG;
      break;
    case ST25DV_PROT_ZONE2:
      sector_security_addr = ST25DV_RFZ2SS_REG;
      break;
    case ST25DV_PROT_ZONE3:
      sector_security_addr = ST25DV_RFZ3SS_REG;
      break;
    case ST25DV_PROT_ZONE4:
      sector_security_addr = ST25DV_RFZ4SS_REG;
      break;
    
    default:
      return NFCTAG_ERROR;
  }
  
  /* Read actual value of Sector Security Status register */
  status = ST25DV_i2c_ReadRegister( &reg_value, sector_security_addr, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract Sector Security Status configuration */
  pRfprotZone->PasswdCtrl = (ST25DV_PASSWD_PROT_STATUS)((reg_value & ST25DV_RFZSS_PWDCTRL_MASK) >> ST25DV_RFZSS_PWDCTRL_SHIFT);
  pRfprotZone->RWprotection = (ST25DV_PROTECTION_CONF)((reg_value & ST25DV_RFZSS_RWPROT_MASK) >> ST25DV_RFZSS_RWPROT_SHIFT);
  
  return NFCTAG_OK;
}

/**
  * @brief  Writes the RF Zone Security Status (defining the allowed RF accesses)
  * @details  Needs the I2C Password presentation to be effective.
  * @param  Zone        ST25DV_PROTECTION_ZONE value corresponding to the area on which to set the RF protection.
  * @param  RfProtZone  Pointer on a ST25DV_RF_PROT_ZONE value defininf the protection to be set on the area.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteRFZxSS( const ST25DV_PROTECTION_ZONE Zone, const ST25DV_RF_PROT_ZONE RfProtZone, I2C * mi2cChannel )
{
  uint8_t reg_value;
  uint16_t sector_security_addr;
  
  /* Select Sector Security register address */
  switch( Zone )
  {
    case ST25DV_PROT_ZONE1:
      sector_security_addr = ST25DV_RFZ1SS_REG;
      break;
    case ST25DV_PROT_ZONE2:
      sector_security_addr = ST25DV_RFZ2SS_REG;
      break;
    case ST25DV_PROT_ZONE3:
      sector_security_addr = ST25DV_RFZ3SS_REG;
      break;
    case ST25DV_PROT_ZONE4:
      sector_security_addr = ST25DV_RFZ4SS_REG;
      break;
    
    default:
      return NFCTAG_ERROR;
  }
  
  /* Update Sector Security Status */
  reg_value = (RfProtZone.RWprotection << ST25DV_RFZSS_RWPROT_SHIFT) & ST25DV_RFZSS_RWPROT_MASK;
  reg_value |= ((RfProtZone.PasswdCtrl << ST25DV_RFZSS_PWDCTRL_SHIFT) & ST25DV_RFZSS_PWDCTRL_MASK);
  
  /* Write Sector Security register */
  return ST25DV_i2c_WriteRegister( &reg_value, sector_security_addr, 1,  mi2cChannel );
}

/**
  * @brief  Reads the value of the an area end address.
  * @param  EndZone ST25DV_END_ZONE value corresponding to an area end address.
  * @param  pEndZ   Pointer used to return the end address of the area.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadEndZonex( const ST25DV_END_ZONE EndZone, uint8_t * const pEndZ, I2C * mi2cChannel )
{
  uint16_t mem_addr;
  
  /* End zone register address to read */
  switch( EndZone )
  {
    case ST25DV_ZONE_END1:
      mem_addr = ST25DV_END1_REG;
      break;
    case ST25DV_ZONE_END2:
      mem_addr = ST25DV_END2_REG;
      break;
    case ST25DV_ZONE_END3:
      mem_addr = ST25DV_END3_REG;
      break;
    
    default:
      return NFCTAG_ERROR;
  }
  
  /* Read the corresponding End zone */ 
  return ST25DV_i2c_ReadRegister( pEndZ, mem_addr, 1,  mi2cChannel );
}

/**
  * @brief    Sets the end address of an area.
  * @details  Needs the I2C Password presentation to be effective.
  * @note     The ST25DV answers a NACK when setting the EndZone2 & EndZone3 to same value than repectively EndZone1 & EndZone2.\n
  *           These NACKs are ok.
  * @param  EndZone ST25DV_END_ZONE value corresponding to an area.
  * @param  EndZ   End zone value to be written.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteEndZonex( const ST25DV_END_ZONE EndZone, const uint8_t EndZ , I2C * mi2cChannel)
{
  uint16_t mem_addr;
  NFCTAG_StatusTypeDef ret;
  
  /* End zone register address to write */
  switch( EndZone )
  {
    case ST25DV_ZONE_END1:
      mem_addr = ST25DV_END1_REG;
      break;
    case ST25DV_ZONE_END2:
      mem_addr = ST25DV_END2_REG;
      break;
    case ST25DV_ZONE_END3:
      mem_addr = ST25DV_END3_REG;
      break;
    
    default:
      return NFCTAG_ERROR;
  }

  /* Write the corresponding End zone value in register */
  ret = ST25DV_i2c_WriteRegister( &EndZ, mem_addr, 1,mi2cChannel );
  
  return ret;
}

/**
  * @brief  Initializes the end address of the ST25DV areas with their default values (end of memory).
  * @details  Needs the I2C Password presentation to be effective..
  *           The ST25DV answers a NACK when setting the EndZone2 & EndZone3 to same value than repectively EndZone1 & EndZone2.
  *           These NACKs are ok.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_InitEndZone( I2C * mi2cChannel )
{
  uint8_t endval = 0xFF;
  uint32_t maxmemlength;
  ST25DV_MEM_SIZE memsize;
  NFCTAG_StatusTypeDef ret;
  
  memsize.Mem_Size = 0;
  memsize.BlockSize = 0;

  /* Get EEPROM mem size */
  ST25DV_i2c_ReadMemSize( &memsize, mi2cChannel );
  maxmemlength = (memsize.Mem_Size + 1) * (memsize.BlockSize + 1);
  
  /* Compute Max value for endzone register */
  endval = (maxmemlength / 32) - 1;
  
  /* Write EndZone value to ST25DV registers */
  ret = ST25DV_i2c_WriteEndZonex( ST25DV_ZONE_END3, endval, mi2cChannel );
  if( (ret != NFCTAG_OK) && (ret != NFCTAG_NACK) )
  {
    return ret;
  }

  ret = ST25DV_i2c_WriteEndZonex( ST25DV_ZONE_END2, endval, mi2cChannel );
  if( (ret != NFCTAG_OK) && (ret != NFCTAG_NACK) )
  {
    return ret;
  }

  ret = ST25DV_i2c_WriteEndZonex( ST25DV_ZONE_END1, endval, mi2cChannel );
  if( (ret != NFCTAG_OK) && (ret != NFCTAG_NACK) )
  {
    return ret;
  }
  
  return ret;
}

/**
  * @brief  Creates user areas with defined lengths.
  * @details  Needs the I2C Password presentation to be effective.
  * @param  Zone1Length Length of area1 in bytes (32 to 8192, 0x20 to 0x2000)
  * @param  Zone2Length Length of area2 in bytes (0 to 8128, 0x00 to 0x1FC0)
  * @param  Zone3Length Length of area3 in bytes (0 to 8064, 0x00 to 0x1F80)
  * @param  Zone4Length Length of area4 in bytes (0 to 8000, 0x00 to 0x1F40)
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_CreateUserZone( uint16_t Zone1Length, uint16_t Zone2Length, uint16_t Zone3Length, uint16_t Zone4Length, I2C * mi2cChannel )
{
  uint8_t EndVal;
  ST25DV_MEM_SIZE memsize;
  uint16_t maxmemlength = 0;
  NFCTAG_StatusTypeDef ret;
  
  memsize.Mem_Size = 0;
  memsize.BlockSize = 0;

  ST25DV_i2c_ReadMemSize( &memsize, mi2cChannel );
  
  maxmemlength = (memsize.Mem_Size + 1) * (memsize.BlockSize + 1);
  
  /* Checks that values of different zones are in bounds */
  if( ( Zone1Length < 32 ) || ( Zone1Length > maxmemlength ) || ( Zone2Length > (maxmemlength - 32) ) 
      || ( Zone3Length > (maxmemlength - 64) ) || ( Zone4Length > (maxmemlength - 96) ) )
  {
    return NFCTAG_ERROR;
  }

  /* Checks that the total is less than the authorised maximum */
  if( ( Zone1Length + Zone2Length + Zone3Length + Zone4Length ) > maxmemlength )
  {
    return NFCTAG_ERROR;
  }
  
  /* if The value for each Length is not a multiple of 64 correct it. */
  if( (Zone1Length % 32) != 0 )
  {
    Zone1Length = Zone1Length - ( Zone1Length % 32 );
  }
  
  if( (Zone2Length % 32) != 0 )
  {
    Zone2Length = Zone2Length - ( Zone2Length % 32 );
  }
  
  if( (Zone3Length % 32) != 0 )
  {
    Zone3Length = Zone3Length - ( Zone3Length % 32 );
  }
  
  /* First right 0xFF in each Endx value */
  ret = ST25DV_i2c_InitEndZone( mi2cChannel );
  if( (ret != NFCTAG_OK) && (ret != NFCTAG_NACK) )
  {
    return ret;
  }
  
  /* Then Write corresponding value for each zone */
  EndVal = (uint8_t)( (Zone1Length / 32 ) - 1 );
  ret = ST25DV_i2c_WriteEndZonex( ST25DV_ZONE_END1, EndVal, mi2cChannel );
  if( (ret != NFCTAG_OK) && (ret != NFCTAG_NACK) )
  {
    return ret;
  }
  
  EndVal = (uint8_t)( ((Zone1Length + Zone2Length) / 32 ) - 1 );
  ret = ST25DV_i2c_WriteEndZonex( ST25DV_ZONE_END2, EndVal, mi2cChannel );
  if( (ret != NFCTAG_OK) && (ret != NFCTAG_NACK) )
  {
    return ret;
  }
  
  EndVal = (uint8_t)( ((Zone1Length + Zone2Length + Zone3Length) / 32 ) - 1 );
  ret = ST25DV_i2c_WriteEndZonex( ST25DV_ZONE_END3, EndVal, mi2cChannel );
  if( (ret != NFCTAG_OK) && (ret != NFCTAG_NACK) )
  {
    return ret;
  }
  
  return NFCTAG_OK;
}

/**
  * @brief  Reads the ST25DV Memory Size.
  * @param  pSizeInfo Pointer on a ST25DV_MEM_SIZE structure used to return the Memory size information.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMemSize( ST25DV_MEM_SIZE * const pSizeInfo, I2C * mi2cChannel )
{
  uint8_t reg_value[3];
  NFCTAG_StatusTypeDef status;
  
  /* Read actual value of MEM_SIZE register,cheeeeeeeeeeeeeck*/
  status = ST25DV_i2c_ReadRegister( reg_value, ST25DV_MEM_SIZE_REG, 1, mi2cChannel );
  status = ST25DV_i2c_ReadRegister( reg_value + 1, ST25DV_MEM_SIZE_REG + 1, 1, mi2cChannel );
  status = ST25DV_i2c_ReadRegister( reg_value + 2, ST25DV_MEM_SIZE_REG + 2, 1, mi2cChannel );


  if( status != NFCTAG_OK )
    return status;
  
  /* Extract Memory information */
  pSizeInfo->BlockSize = reg_value[2];
  pSizeInfo->Mem_Size = reg_value[1];
  pSizeInfo->Mem_Size = (pSizeInfo->Mem_Size << 8) | reg_value[0];
  return NFCTAG_OK;
}

/**
  * @brief  Reads the Energy harvesting mode.
  * @param  pEH_mode Pointer on a ST25DV_EH_MODE_STATUS value corresponding to the Energy Harvesting state.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadEHMode( ST25DV_EH_MODE_STATUS * const pEH_mode, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read actual value of EH_MODE register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_EH_MODE_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
    return status;
  
  /* Extract EH_mode configuration */
  if( (reg_value & ST25DV_EH_MODE_MASK) == ST25DV_EH_MODE_MASK )
  {
    *pEH_mode = ST25DV_EH_ON_DEMAND;
  }
  else
  {
    *pEH_mode = ST25DV_EH_ACTIVE_AFTER_BOOT;
  }
  
  return NFCTAG_OK;
}

/**
  * @brief  Sets the Energy harvesting mode.
  * @details  Needs the I2C Password presentation to be effective.
  * @param  EH_mode ST25DV_EH_MODE_STATUS value for the Energy harvesting mode to be set.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteEHMode( const ST25DV_EH_MODE_STATUS EH_mode, I2C * mi2cChannel )
{
  uint8_t reg_value;
  
  /* Update EH_mode */
  reg_value = (uint8_t)EH_mode;
  
  /* Write EH_MODE register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_EH_MODE_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the RF Management configuration.
  * @param  pRF_Mngt Pointer on a ST25DV_RF_MNGT structure used to return the RF Management configuration.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadRFMngt( ST25DV_RF_MNGT * const pRF_Mngt, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_RF_MNGT_REG, 1,  mi2cChannel );

  if( status == NFCTAG_OK )
  {
    /* Extract RF Disable information */
    if( (reg_value & ST25DV_RF_MNGT_RFDIS_MASK) == ST25DV_RF_MNGT_RFDIS_MASK )
    {
      pRF_Mngt->RfDisable = ST25DV_ENABLE;
    }
    else
    {
      pRF_Mngt->RfDisable = ST25DV_DISABLE;
    }
    
    /* Extract RF Sleep information */
    if( (reg_value & ST25DV_RF_MNGT_RFSLEEP_MASK) == ST25DV_RF_MNGT_RFSLEEP_MASK )
    {
      pRF_Mngt->RfSleep = ST25DV_ENABLE;
    }
    else
    {
      pRF_Mngt->RfSleep = ST25DV_DISABLE;
    }
  }
  
  return status;
}

/**
  * @brief  Sets the RF Management configuration.
  * @details  Needs the I2C Password presentation to be effective.
  * @param  Rfmngt Value of the RF Management configuration to be written.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteRFMngt( const uint8_t Rfmngt, I2C * mi2cChannel )
{
  /* Write RF_MNGT register */
  return ST25DV_i2c_WriteRegister( &Rfmngt, ST25DV_RF_MNGT_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the RFDisable register information.
  * @param  pRFDisable Pointer on a ST25DV_EN_STATUS value corresponding to the RF Disable status.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFDisable( ST25DV_EN_STATUS * const pRFDisable, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_RF_MNGT_REG, 1, mi2cChannel );
  
  /* Extract RFDisable information */
  if( status == NFCTAG_OK )
  {
    if( (reg_value & ST25DV_RF_MNGT_RFDIS_MASK) == ST25DV_RF_MNGT_RFDIS_MASK )
    {
      *pRFDisable = ST25DV_ENABLE;
    }
    else
    {
      *pRFDisable = ST25DV_DISABLE;
    }
    return NFCTAG_OK;
  }
  
  return status;
}

/**
  * @brief  Sets the RF Disable configuration.
  * @details  Needs the I2C Password presentation to be effective.7
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_SetRFDisable( I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_RMNGT register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_RF_MNGT_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update RF Disable field configuration */
  reg_value |= ST25DV_RF_MNGT_RFDIS_MASK;
  
  /* Write RF_MNGT register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_RF_MNGT_REG, 1, mi2cChannel );
}

/**
  * @brief  Resets the RF Disable configuration
  * @details  Needs the I2C Password presentation to be effective.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ResetRFDisable( I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_RMNGT register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_RF_MNGT_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update RF Disable field configuration */
  reg_value &= ST25DV_RF_MNGT_RFDIS_FIELD;
  
  /* Write RF_MNGT register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_RF_MNGT_REG, 1,  mi2cChannel );
}

/**
  * @brief  Reads the RFSleep register information.
  * @param  pRFSleep Pointer on a ST25DV_EN_STATUS value corresponding to the RF Sleep status.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFSleep( ST25DV_EN_STATUS * const pRFSleep, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_RF_MNGT_REG, 1, mi2cChannel );
  
  /* Extract RFSleep information */
  if( status == NFCTAG_OK )
  {
    if( (reg_value & ST25DV_RF_MNGT_RFDIS_MASK) == ST25DV_RF_MNGT_RFDIS_MASK )
    {
      *pRFSleep = ST25DV_ENABLE;
    }
    else
    {
      *pRFSleep = ST25DV_DISABLE;
    }
    return NFCTAG_OK;
  }
  
  return status;
}

/**
  * @brief  Sets the RF Sleep configuration.
  * @details  Needs the I2C Password presentation to be effective.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_SetRFSleep( I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_RMNGT register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_RF_MNGT_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update RF Sleep field configuration */
  reg_value |= ST25DV_RF_MNGT_RFSLEEP_MASK;
  
  /* Write RF_MNGT register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_RF_MNGT_REG, 1,mi2cChannel );
}

/**
  * @brief  Resets the RF Sleep configuration.
  * @details  Needs the I2C Password presentation to be effective.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ResetRFSleep( I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_RMNGT register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_RF_MNGT_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update RF Sleep field configuration */
  reg_value &= ST25DV_RF_MNGT_RFSLEEP_FIELD;
  
  /* Write RF_MNGT register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_RF_MNGT_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the Mailbox mode.
  * @param  pMB_mode Pointer on a ST25DV_EH_MODE_STATUS value used to return the Mailbox mode.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMBMode( ST25DV_EN_STATUS * const pMB_mode, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read actual value of MB_MODE register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_MB_MODE_REG, 1,  mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract Mailbox mode status */
  if( (reg_value & ST25DV_MB_MODE_RW_MASK) == ST25DV_MB_MODE_RW_MASK )
  {
    *pMB_mode = ST25DV_ENABLE;
  }
  else
  {
    *pMB_mode = ST25DV_DISABLE;
  }
  
  return NFCTAG_OK;
}

/**
  * @brief  Sets the Mailbox mode.
  * @details  Needs the I2C Password presentation to be effective.
  * @param  MB_mode ST25DV_EN_STATUS value corresponding to the Mailbox mode to be set.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteMBMode( const ST25DV_EN_STATUS MB_mode, I2C * mi2cChannel )
{
  uint8_t reg_value;
  
  /* Update Mailbox mode status */
  reg_value = (uint8_t)MB_mode;
  
  /* Write MB_MODE register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_MB_MODE_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the Mailbox watchdog duration coefficient.
  * @param  pWdgDelay Pointer on a uint8_t used to return the watchdog duration coefficient.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMBWDG( uint8_t * const pWdgDelay, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read actual value of MB_WDG register */
  status = ST25DV_i2c_ReadRegister( &reg_value, ST25DV_MB_WDG_REG, 1 , mi2cChannel);
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract watchdog coefficient delay configuration */
  *pWdgDelay = (reg_value & ST25DV_MB_WDG_DELAY_MASK) >> ST25DV_MB_WDG_DELAY_SHIFT;
  
  return NFCTAG_OK;
}

/**
  * @brief  Writes the Mailbox watchdog coefficient delay
  * @details  Needs the I2C Password presentation to be effective.
  * @param  WdgDelay Watchdog duration coefficient to be written (Watch dog duration = MB_WDG*30 ms +/- 6%).
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteMBWDG( const uint8_t WdgDelay, I2C * mi2cChannel )
{
  uint8_t reg_value;
  
  /* Set Watchdog coefficient delay */
  reg_value = WdgDelay & ST25DV_MB_WDG_DELAY_MASK;
  
  /* Write MB_MODE register */
  return ST25DV_i2c_WriteRegister( &reg_value, ST25DV_MB_WDG_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads N bytes of data from the Mailbox, starting at the specified byte offset.
  * @param  pData   Pointer on the buffer used to return the read data.
  * @param  Offset  Offset in the Mailbox memory, byte number to start the read.
  * @param  NbByte  Number of bytes to be read.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMailboxData( uint8_t * const pData, const uint16_t Offset, const uint16_t NbByte, I2C * mi2cChannel )
{
  if( Offset > ST25DV_MAX_MAILBOX_LENGTH )
  {
    return NFCTAG_ERROR;
  }
  
  /* Read Data in user memory */
  return ST25DV_IO_MemRead( pData, ST25DV_ADDR_DATA_I2C, ST25DV_MAILBOX_RAM_REG + Offset, NbByte,  mi2cChannel );
}

/**
  * @brief  Writes N bytes of data in the Mailbox, starting from first Mailbox Address.
  * @param  pData   Pointer to the buffer containing the data to be written.
  * @param  NbByte  Number of bytes to be written.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteMailboxData( const uint8_t * const pData, const uint16_t NbByte, I2C * mi2cChannel )
{ 
  NFCTAG_StatusTypeDef status;
  
  /* ST25DV can write a maximum of 256 bytes in Mailbox */
  if( NbByte < ST25DV_MAX_MAILBOX_LENGTH )
  {
    /* Write NbByte data in memory */
    status = ST25DV_IO_MemWrite( pData, ST25DV_ADDR_DATA_I2C, ST25DV_MAILBOX_RAM_REG, NbByte,  mi2cChannel);
  }
  else
  {
    status = NFCTAG_ERROR;
  }
  
  return status;
}

/**
  * @brief  Reads N bytes from the mailbox registers, starting at the specified I2C address.
  * @param  pData   Pointer on the buffer used to return the data.
  * @param  TarAddr I2C memory address to be read.
  * @param  NbByte  Number of bytes to be read.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMailboxRegister( uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel )
{ 
  if( (TarAddr < ST25DV_GPO_DYN_REG) || (TarAddr > ST25DV_MBLEN_DYN_REG) )
  {
    return NFCTAG_ERROR;
  }
  
  return ST25DV_IO_MemRead( pData, ST25DV_ADDR_DATA_I2C, TarAddr, NbByte,  mi2cChannel );
}

/**
  * @brief  Writes N bytes to the specified mailbox register.
  * @param  pData   Pointer on the data to be written.
  * @param  TarAddr I2C register address to be written.
  * @param  NbByte  Number of bytes to be written.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteMailboxRegister( const uint8_t * const pData, const uint16_t TarAddr, const uint16_t NbByte, I2C * mi2cChannel )
{ 
  NFCTAG_StatusTypeDef status;
  
  if( (TarAddr < ST25DV_GPO_DYN_REG) || (TarAddr > ST25DV_MBLEN_DYN_REG) )
  {
    return NFCTAG_ERROR;
  }
  
  /* ST25DV can write a maximum of 256 bytes in Mailbox */
  if( NbByte < ST25DV_MAX_MAILBOX_LENGTH )
  {
    /* Write NbByte data in memory */
    status = ST25DV_IO_MemWrite( pData, ST25DV_ADDR_DATA_I2C, TarAddr, NbByte, mi2cChannel);
  }
  else
  {
    status = NFCTAG_ERROR;
  }
  
  return status;
}

/**
  * @brief  Reads the status of the security session open register.
  * @param  pSession Pointer on a ST25DV_I2CSSO_STATUS value used to return the session status.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadI2CSecuritySession_Dyn( ST25DV_I2CSSO_STATUS * const pSession, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;

  /* Read actual value of I2C_SSO_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_I2C_SSO_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract Open session information */
  if( (reg_value & ST25DV_I2C_SSO_DYN_I2CSSO_MASK) == ST25DV_I2C_SSO_DYN_I2CSSO_MASK )
  {
    *pSession = ST25DV_SESSION_OPEN;
  }
  else
  {
    *pSession = ST25DV_SESSION_CLOSED;
  }
  
  return NFCTAG_OK;
}

/**
  * @brief  Reads the IT status register from the ST25DV.
  * @param  pITStatus Pointer on uint8_t, used to return the IT status, such as:
  *                       - RFUSERSTATE = 0x01
  *                       - RFBUSY = 0x02
  *                       - RFINTERRUPT = 0x04
  *                       - FIELDFALLING = 0x08
  *                       - FIELDRISING = 0x10
  *                       - RFPUTMSG = 0x20
  *                       - RFGETMSG = 0x40
  *                       - RFWRITE = 0x80
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadITSTStatus_Dyn( uint8_t * const pITStatus, I2C * mi2cChannel )
{
  /* Read value of ITStatus register */
  return ST25DV_i2c_ReadMailboxRegister( pITStatus, ST25DV_ITSTS_DYN_REG, 1,  mi2cChannel );
}

/**
  * @brief  Read value of dynamic GPO register configuration.
  * @param  pGPO ST25DV_GPO pointer of the dynamic GPO configuration to store.
  * @param  mi2cChannel I2C channel
  * @retval NFCTAG enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadGPO_Dyn( uint8_t *GPOConfig, I2C * mi2cChannel )
{
  /* Read actual value of ST25DV_GPO_DYN_REG register */
  return ST25DV_i2c_ReadMailboxRegister( GPOConfig, ST25DV_GPO_DYN_REG, 1,  mi2cChannel );
}


/**
  * @brief  Get dynamique GPO enable status
  * @param  pGPO_en ST25DV_EN_STATUS pointer of the GPO enable status to store
  * @param  mi2cChannel I2C channel
  * @retval NFCTAG enum status
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetGPO_en_Dyn( ST25DV_EN_STATUS * const pGPO_en, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  /* Read actual value of GPO_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_GPO_DYN_REG, 1,  mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract GPO enable status information */
  if( (reg_value & ST25DV_GPO_DYN_ENABLE_MASK) == ST25DV_GPO_DYN_ENABLE_MASK )
  {
    *pGPO_en = ST25DV_ENABLE;
  }
  else
  {
    *pGPO_en = ST25DV_DISABLE;
  }
  
  return NFCTAG_OK;
}

/**
  * @brief  Set dynamique GPO enable configuration.
  * @param  None No parameters.
  * @param  mi2cChannel I2C channel
  * @retval NFCTAG enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_SetGPO_en_Dyn( I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read actual value of GPO_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_GPO_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update GPO enable configuration */
  reg_value |= ST25DV_GPO_DYN_ENABLE_MASK;
  
  /* Write GPO_DYN Register */
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_GPO_DYN_REG, 1,  mi2cChannel );
}

/**
  * @brief  Reset dynamique GPO enable configuration.
  * @param  None No parameters.
  * @param  mi2cChannel I2C channel
  * @retval NFCTAG enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ResetGPO_en_Dyn( I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read actual value of GPO_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_GPO_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update GPO enable configuration */
  reg_value &= ST25DV_GPO_DYN_ENABLE_FIELD;
  
  /* Write GPO_DYN Register */
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_GPO_DYN_REG, 1, mi2cChannel );
}

/**
  * @brief  Read value of dynamic EH Ctrl register configuration
  * @param  pEH_CTRL : ST25DV_EH_CTRL pointer of the dynamic EH Ctrl configuration to store
  * @param  mi2cChannel I2C channel
  * @retval NFCTAG enum status
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadEHCtrl_Dyn( ST25DV_EH_CTRL * const pEH_CTRL, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of ST25DV_EH_CTRL_DYN_REG register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_EH_CTRL_DYN_REG, 1,  mi2cChannel );
  
  if( status == NFCTAG_OK )
  {
    /* Extract EH EN Mode configuration */
    if( (reg_value & ST25DV_EH_CTRL_DYN_EH_EN_MASK) == ST25DV_EH_CTRL_DYN_EH_EN_MASK )
    {
      pEH_CTRL->EH_EN_Mode = ST25DV_ENABLE;
    }
    else
    {
      pEH_CTRL->EH_EN_Mode = ST25DV_DISABLE;
    }
    
    /* Extract EH_ON configuration */
    if( (reg_value & ST25DV_EH_CTRL_DYN_EH_ON_MASK) == ST25DV_EH_CTRL_DYN_EH_ON_MASK )
    {
      pEH_CTRL->EH_on = ST25DV_ENABLE;
    }
    else
    {
      pEH_CTRL->EH_on = ST25DV_DISABLE;
    }
    
    /* Extract FIELD_ON configuration */
    if( (reg_value & ST25DV_EH_CTRL_DYN_FIELD_ON_MASK) == ST25DV_EH_CTRL_DYN_FIELD_ON_MASK )
    {
      pEH_CTRL->Field_on = ST25DV_ENABLE;
    }
    else
    {
      pEH_CTRL->Field_on = ST25DV_DISABLE;
    }
    
    /* Extract VCC_ON configuration */
    if( (reg_value & ST25DV_EH_CTRL_DYN_VCC_ON_MASK) == ST25DV_EH_CTRL_DYN_VCC_ON_MASK )
    {
      pEH_CTRL->VCC_on = ST25DV_ENABLE;
    }
    else
    {
      pEH_CTRL->VCC_on = ST25DV_DISABLE;
    }
    
    return NFCTAG_OK;
  }
  
  return status;
}

/**
  * @brief  Reads the Energy Harvesting dynamic status.
  * @param  pEH_Val Pointer on a ST25DV_EN_STATUS value used to return the Energy Harvesting dynamic status.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetEHENMode_Dyn( ST25DV_EN_STATUS * const pEH_Val, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read actual value of EH_CTRL_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_EH_CTRL_DYN_REG, 1,  mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract Energy Harvesting status information */
  if( (reg_value & ST25DV_EH_CTRL_DYN_EH_EN_MASK) == ST25DV_EH_CTRL_DYN_EH_EN_MASK )
  {
    *pEH_Val = ST25DV_ENABLE;
  }
  else
  {
    *pEH_Val = ST25DV_DISABLE;
  }
  
  return NFCTAG_OK;
}

/**
  * @brief  Dynamically sets the Energy Harvesting mode.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_SetEHENMode_Dyn(  I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read actual value of EH_CTRL_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_EH_CTRL_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update Energy Harvesting configuration */
  reg_value |= ST25DV_EH_CTRL_DYN_EH_EN_MASK;
  
  /* Write EH_CTRL_DYN Register */
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_EH_CTRL_DYN_REG, 1, mi2cChannel );
}

/**
  * @brief  Dynamically unsets the Energy Harvesting mode.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ResetEHENMode_Dyn( I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read actual value of EH_CTRL_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_EH_CTRL_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update Energy Harvesting configuration */
  reg_value &= ST25DV_EH_CTRL_DYN_EH_EN_FIELD;
  
  /* Write EH_CTRL_DYN Register */
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_EH_CTRL_DYN_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the EH_ON status from the EH_CTRL_DYN register.
  * @param  pEHON Pointer on a ST25DV_EN_STATUS value used to return the EHON status.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetEHON_Dyn( ST25DV_EN_STATUS * const pEHON, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of EH_CTRL_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_EH_CTRL_DYN_REG, 1, mi2cChannel );
  
  /* Extract RF Field information */
  if( status == NFCTAG_OK )
  {
    if( (reg_value & ST25DV_EH_CTRL_DYN_EH_ON_MASK) == ST25DV_EH_CTRL_DYN_EH_ON_MASK )
    {
      *pEHON = ST25DV_ENABLE;
    }
    else
    {
      *pEHON = ST25DV_DISABLE;
    }
    return NFCTAG_OK;
  }
  
  return status;
}

/**
  * @brief  Checks if RF Field is present in front of the ST25DV.
  * @param  pRF_Field Pointer on a ST25DV_FIELD_STATUS value used to return the field presence.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFField_Dyn( ST25DV_FIELD_STATUS * const pRF_Field, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of EH_CTRL_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_EH_CTRL_DYN_REG, 1, mi2cChannel );
  
  /* Extract RF Field information */
  if( status == NFCTAG_OK )
  {
    if( (reg_value & ST25DV_EH_CTRL_DYN_FIELD_ON_MASK) == ST25DV_EH_CTRL_DYN_FIELD_ON_MASK )
    {
      *pRF_Field = ST25DV_FIELD_ON;
    }
    else
    {
      *pRF_Field = ST25DV_FIELD_OFF;
    }
    return NFCTAG_OK;
  }
  
  return status;
}

/**
  * @brief  Check if VCC is supplying the ST25DV.
  * @param  pVCC ST25DV_VCC_STATUS pointer of the VCC status to store
  * @param  mi2cChannel I2C channel
  * @retval NFCTAG enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetVCC_Dyn( ST25DV_VCC_STATUS * const pVCC, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of EH_CTRL_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_EH_CTRL_DYN_REG, 1, mi2cChannel );
  
  /* Extract VCC information */
  if( status == NFCTAG_OK )
  {
    if( (reg_value & ST25DV_EH_CTRL_DYN_VCC_ON_MASK) == ST25DV_EH_CTRL_DYN_VCC_ON_MASK )
    {
      *pVCC = ST25DV_VCC_ON;
    }
    else
    {
      *pVCC = ST25DV_VCC_OFF;
    }
    return NFCTAG_OK;
  }
  
  return status;
}

/**
  * @brief  Read value of dynamic RF Management configuration
  * @param  pRF_Mngt : ST25DV_RF_MNGT pointer of the dynamic RF Management configuration to store
  * @param  mi2cChannel I2C channel
  * @retval NFCTAG enum status
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadRFMngt_Dyn( ST25DV_RF_MNGT * const pRF_Mngt, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1, mi2cChannel );
  
  if( status == NFCTAG_OK )
  {
    /* Extract RF Disable configuration */
    if( (reg_value & ST25DV_RF_MNGT_DYN_RFDIS_MASK) == ST25DV_RF_MNGT_DYN_RFDIS_MASK )
    {
      pRF_Mngt->RfDisable = ST25DV_ENABLE;
    }
    else
    {
      pRF_Mngt->RfDisable = ST25DV_DISABLE;
    }
    
    /* Extract RF Sleep configuration */
    if( (reg_value & ST25DV_RF_MNGT_DYN_RFSLEEP_MASK) == ST25DV_RF_MNGT_DYN_RFSLEEP_MASK )
    {
      pRF_Mngt->RfSleep = ST25DV_ENABLE;
    }
    else
    {
      pRF_Mngt->RfSleep = ST25DV_DISABLE;
    }
    
    return NFCTAG_OK;
  }
  
  return status;
}

/**
  * @brief  Writes a value to the RF Management dynamic register.
  * @param  RF_Mngt Value to be written to the RF Management dynamic register.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_WriteRFMngt_Dyn( const uint8_t RF_Mngt, I2C * mi2cChannel )
{
  /* Write value to RF_MNGT_DYN register */
  return ST25DV_i2c_WriteMailboxRegister( &RF_Mngt, ST25DV_RF_MNGT_DYN_REG, 1,  mi2cChannel );
}

/**
  * @brief  Reads the RFDisable dynamic register information.
  * @param  pRFDisable Pointer on a ST25DV_EN_STATUS value used to return the RF Disable state.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFDisable_Dyn( ST25DV_EN_STATUS * const pRFDisable, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1, mi2cChannel );
  
  /* Extract RFDisable information */
  if( status == NFCTAG_OK )
  {
    if( (reg_value & ST25DV_RF_MNGT_DYN_RFDIS_MASK) == ST25DV_RF_MNGT_DYN_RFDIS_MASK )
    {
      *pRFDisable = ST25DV_ENABLE;
    }
    else
    {
      *pRFDisable = ST25DV_DISABLE;
    }
    return NFCTAG_OK;
  }
  
  return status;
}

/**
  * @brief  Sets the RF Disable dynamic configuration.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_SetRFDisable_Dyn( I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update dynamic RF Disable field */
  reg_value |= ST25DV_RF_MNGT_DYN_RFDIS_MASK;
  
  /* Write RF_MNGT_DYN register */
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1,  mi2cChannel );
}

/**
  * @brief  Unsets the RF Disable dynamic configuration.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ResetRFDisable_Dyn( I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update dynamic RF Disable field configuration */
  reg_value &= ST25DV_RF_MNGT_DYN_RFDIS_FIELD;
  
  /* Write RF_MNGT_DYN register */
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the RFSleep dynamic register information.
  * @param  pRFSleep Pointer on a ST25DV_EN_STATUS values used to return the RF Sleep state.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetRFSleep_Dyn( ST25DV_EN_STATUS * const pRFSleep, I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1,  mi2cChannel );
  
  /* Extract RFSleep information */
  if( status == NFCTAG_OK )
  {
    if( (reg_value & ST25DV_RF_MNGT_DYN_RFDIS_MASK) == ST25DV_RF_MNGT_DYN_RFDIS_MASK )
    {
      *pRFSleep = ST25DV_ENABLE;
    }
    else
    {
      *pRFSleep = ST25DV_DISABLE;
    }
    return NFCTAG_OK;
  }
  
  return status;
}

/**
  * @brief  Sets the RF Sleep dynamic configuration.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_SetRFSleep_Dyn( I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update dynamic RF Disable field configuration */
  reg_value |= ST25DV_RF_MNGT_DYN_RFSLEEP_MASK;
  
  /* Write RF_MNGT_DYN register */
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1, mi2cChannel );
}

/**
  * @brief  Unsets the RF Sleep dynamic configuration.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ResetRFSleep_Dyn( I2C * mi2cChannel )
{
  NFCTAG_StatusTypeDef status;
  uint8_t reg_value = 0;
  
  /* Read actual value of RF_MNGT_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Update dynamic RF Disable field configuration */
  reg_value &= ST25DV_RF_MNGT_DYN_RFSLEEP_FIELD;
  
  /* Write RF_MNGT_DYN register */
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_RF_MNGT_DYN_REG, 1, mi2cChannel );
}

/**
  * @brief  Reads the Mailbox ctrl dynamic register.
  * @param  pCtrlStatus Pointer on a ST25DV_MB_CTRL_DYN_STATUS structure used to return the dynamic Mailbox ctrl information.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMBCtrl_Dyn( ST25DV_MB_CTRL_DYN_STATUS * const pCtrlStatus, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read MB_CTRL_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_MB_CTRL_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  /* Extract Mailbox ctrl information */
  pCtrlStatus->MbEnable = (reg_value & ST25DV_MB_CTRL_DYN_MBEN_MASK) >> ST25DV_MB_CTRL_DYN_MBEN_SHIFT;
  pCtrlStatus->HostPutMsg = (reg_value & ST25DV_MB_CTRL_DYN_HOSTPUTMSG_MASK) >> ST25DV_MB_CTRL_DYN_HOSTPUTMSG_SHIFT;
  pCtrlStatus->RfPutMsg = (reg_value & ST25DV_MB_CTRL_DYN_RFPUTMSG_MASK) >> ST25DV_MB_CTRL_DYN_RFPUTMSG_SHIFT;
  pCtrlStatus->HostMissMsg = (reg_value & ST25DV_MB_CTRL_DYN_HOSTMISSMSG_MASK) >> ST25DV_MB_CTRL_DYN_HOSTMISSMSG_SHIFT;
  pCtrlStatus->RFMissMsg = (reg_value & ST25DV_MB_CTRL_DYN_RFMISSMSG_MASK) >> ST25DV_MB_CTRL_DYN_RFMISSMSG_SHIFT;
  pCtrlStatus->CurrentMsg = (ST25DV_CURRENT_MSG)((reg_value & ST25DV_MB_CTRL_DYN_CURRENTMSG_MASK) >> ST25DV_MB_CTRL_DYN_CURRENTMSG_SHIFT);
  
  return NFCTAG_OK;
}

/**
  * @brief  Reads the Mailbox Enable dynamic configuration.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_GetMBEN_Dyn( ST25DV_EN_STATUS * const pMBEN, I2C * mi2cChannel )
{
  uint8_t reg_value;
  NFCTAG_StatusTypeDef status;
  
  /* Read MB_CTRL_DYN register */
  status = ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_MB_CTRL_DYN_REG, 1, mi2cChannel );
  if( status != NFCTAG_OK )
  {
    return status;
  }
  
  if( (reg_value & ST25DV_MB_MODE_RW_MASK ) == ST25DV_MB_MODE_RW_MASK )
  {
    *pMBEN = ST25DV_ENABLE;
  }
  else
  {
    *pMBEN = ST25DV_DISABLE;
  }
  
  return NFCTAG_OK;
}

/**
  * @brief  Sets the Mailbox Enable dynamic configuration.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_SetMBEN_Dyn( I2C * mi2cChannel )
{
  uint8_t reg_value;
  
  /* Set dynamic Mailbox enable */
  reg_value = ST25DV_MB_CTRL_DYN_MBEN_MASK;
  
  /* Write MB_CTRL_DYN register */
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_MB_CTRL_DYN_REG, 1, mi2cChannel );
}

/**
  * @brief  Unsets the Mailbox Enable dynamic configuration.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ResetMBEN_Dyn( I2C * mi2cChannel )
{
  uint8_t reg_value;

  
  /* Set dynamic Mailbox disable */
  reg_value = 0;
  
  /* Write MB_CTRL_DYN register */
  ST25DV_i2c_ReadMailboxRegister( &reg_value, ST25DV_MB_CTRL_DYN_REG, 1, mi2cChannel );
  return ST25DV_i2c_WriteMailboxRegister( &reg_value, ST25DV_MB_CTRL_DYN_REG, 1, mi2cChannel );

}

/**
  * @brief  Reads the Mailbox message length dynamic register.
  * @param  pMBLength Pointer on a uint8_t used to return the Mailbox message length.
  * @param  mi2cChannel I2C channel
  * @return NFCTAG_StatusTypeDef enum status.
  */
NFCTAG_StatusTypeDef ST25DV_i2c_ReadMBLength_Dyn( uint8_t * const pMBLength, I2C * mi2cChannel )
{
  /* Read actual value of MBLEN_DYN register */
  return ST25DV_i2c_ReadMailboxRegister( pMBLength, ST25DV_MBLEN_DYN_REG, 1, mi2cChannel );
}

/**
 * @}
 */

/**
 * @}
 */


/******************* (C) COPYRIGHT 2016 STMicroelectronics *****END OF FILE****/