nv_flash.c

freescale的基于802.15.4的无线通讯例程

 			  
 				/* At least one error has occured - but continue  */
 				copyStatus = FALSE;
 			}
 		}
 		/*  Update pointers  */
 		pNVRAMCopyFrom++;
 		pNVRAMCopyTo++;
 	}
 	
  if( FlashEraseSector(( uint16_t )gpScratchPadNvram >> HCS08SectorSize_c ) 
  == FALSE ) {
    copyStatus = FALSE;
  }

  IrqControlLib_RestoreIrqStatus( ccr );

	return( copyStatus );
}


/*****************************************************************************
* Reads the NVRAM data from the specified Address.  
*
* Interface assumptions:
*
* Return value:
* Status 
*
* Revison history:
* Unnecessary checkingof NVM range removed to save code space.
* It is anyway memory copy.
*
* date   Author   Comments
* ------ ------   --------
* 290301 FSL,LS  Created
*****************************************************************************/
bool_t NVM_ReadNVRAM (
  uint8_t *PDestination,  /*IN:  destination address (RAM address) to where
                           data has to be copied */
  uint8_t *pNVRAMSource, /* IN:address in NVRAM from where data has to be
                            copied */
  uint16_t cSourceLength  /* IN:length of data to be copied from NVRAM */
  )
{
  if (NVmemcpy( PDestination, pNVRAMSource, cSourceLength)) {
    return TRUE;
  }
  else  {
    return FALSE;
  }
}

/*****************************************************************************
******************************************************************************
* Private functions
******************************************************************************
*****************************************************************************/

/*****************************************************************************
* The data is written to flash on the location specified in the pointer.     
*
* Interface assumptions:
* Should be called from Interrupt disabled context.
*
* Return value:
* FlashStatus
*
* Revison history:
*
* date   Author   Comments
* ------ ------   --------
* 290301 FSL,LS  Created
*****************************************************************************/
bool_t FlashProgByte(
  uint8_t data,           /*  IN:data to be written */
  uint8_t * pDestination  /* IN:Address where data has to be written */
  )
{
  bool_t FlashStatus;

	/* Go to commom critical part of flash execution in RAM */
	FlashStatus = pfNVFlashCommomExecuteCMD_t(data, pDestination, \
	                                      FlashByteWriteCmd_c);
  return(FlashStatus);
}


/*****************************************************************************
* Erases the sector specified as parameter.                                   
*
* Interface assumptions:
* Should be called from Interrupt disabled context.
*
* Return value:
* FlashStatus
*
* Revison history:
*
* date   Author   Comments
* ------ ------   --------
* 290301 FSL,LS  Created
*****************************************************************************/
bool_t FlashEraseSector(
  uint8_t sectorNumber  /* IN:sector to be erased */
  )
{
  bool_t FlashStatus;

  /*just avoid erasing code space by programs.*/
  if (( sectorNumber == NvramScratchpad_c ) || 
  ( sectorNumber == NvramMac_c )||
  ( sectorNumber == NvramZS1_c )||
  ( sectorNumber == NvramZS2_c )) {
 
   /* Go to critical part of flash execution in RAM  */
	  FlashStatus = pfNVFlashCommomExecuteCMD_t( DummyData_c,  \
	  (( uint8_t* )((( sectorNumber + 1 )*FlashSectorSize_c ) - 1 )),
	                          FlashSectorEraseCmd_c );

  }
  return( FlashStatus );
}


/*****************************************************************************
* Copies data from source to destination  
*
* Interface assumptions:
*
* Return value:
* None
*
* Revison history:
*
* date   Author   Comments
* ------ ------   --------
* 290301 FSL,LS  Created
*****************************************************************************/
bool_t NVmemcpy(
  uint8_t *pDest,       /* IN:destination address (RAM address) */ 
  uint8_t *pSource,     /* IN:the source address in NVRAM  */
  uint16_t cDataLength  /* IN:length of data to be copied  */
  )
{
  uint16_t iIndex;
  for ( iIndex = 0; iIndex < cDataLength; iIndex++ ) {
    *pDest++ = *pSource++;
  }
  return TRUE;
}

/******************************************************************************
* This function is used to Get the MAC state
*
* Interface assumptions: None  				  
* Return value: None  
*   										 
* Effects on Global Data: none
*   
* Revison history:
*   date      Author    Comments
*   ------    ------    --------
*   200606    mwest2    Created
******************************************************************************/

uint8_t GetMacStateReq(void) {
  aspMsg_t aspGetMacState;
  aspGetMacStateReq_t *pGetMacStateReq;

  pGetMacStateReq = &aspGetMacState.appToAspMsg.msgData.aspGetMacStateReq;
    /* Set the type. */
  aspGetMacState.msgType = gAppAspGetMacStateReq_c;
    /* Values greater than 1 byte must be little endian byte arrays. */
  pGetMacStateReq->dummy = 0x00;
  (void) MSG_Send(APP_ASP, &aspGetMacState);
  return(aspGetMacState.aspToAppMsg.msgData.appGetMacStateCfm.status);  
}

/******************************************************************************
* This function is used to turn ON / turn OFF the receiver.
*
* Interface assumptions: None  				  
* Return value: None  
*   										 
* Effects on Global Data: MAC PIBN
*   
* Revison history:
*   date      Author    Comments
*   ------    ------    --------
*   200606    mwest2    Created
******************************************************************************/

void BUtl_ChangeReceiverStatus
  ( 
  uint8_t requestedStatus 
  )
{
  uint16_t i = 0; /* Dummy counter TBC*/

  if (requestedStatus == FALSE) {
    ( void )NWK_INFOBASE_SetPIBAttributeValue( gMPibRxOnWhenIdle_c, 
      &requestedStatus ); 

    while ((GetMacStateReq() != gAspMacStateIdle_c) && (i++ < mNumRetries_c)){ 
      Mlme_Main( gMacEventMemMlmeMsgQueued_c | gMacEventNwkMcpsMsgQueued_c | 
      gMacEventNwkMlmeMsgQueued_c | gMacEventMemAspMsgQueued_c);
    } /*while...*/
  } else {
    /*requestedStatus == TRUE */

#if ( gRouterCapability_d == 1) || gCoordinatorCapability_d == 1)
    ( void )NWK_INFOBASE_SetPIBAttributeValue( gMPibRxOnWhenIdle_c, 
      &requestedStatus ); 
#endif

#if (gEndDevCapability_d == 1)
    if( ( GetZdoNvmPtr->macCapFlags ) & gCapInfoRcvrOnIdle_c ){ 
      ( void )NWK_INFOBASE_SetPIBAttributeValue( gMPibRxOnWhenIdle_c, 
        &requestedStatus ); 
    }
#endif /*EndDevCapability_d == 1*/

  } /*else */
    


}

/*****************************************************************************
******************************************************************************
* Private Debug stuff
******************************************************************************
*****************************************************************************/
/* None */
   
 #endif /*(gNV_FlashIncluded_d)*/