zbconstant.h

IEEE802.15.4标准下的基于ZIGBEE协议栈的物理及链路层的代码

/**
 * define zigbee constant
 */

#ifndef __ZBCONSTANT_H__
#define __ZBCONSTANT_H__


/**
 * define the size of panDescriptorTable
 **/ 
#define MAX_PAN_DESCRIPTOR_NUM	4

/**
 * next are physical layer module define
 */

#define aMaxPHYPacketSize 127   //bytes

#define aTurnaroundTime 12     //symbol period,one symbol period time ==16us in 2.4G



/**
 * next are mac layer module define
 **/

#define aMaxBE 5		//use in physical layer module

#define macMinBE 2	//use in physical layer module

#define macMaxCSMABackoffs 4		//use in physical layer module

#define aUnitBackoffPeriod 20		//symbol period

#define aMaxBeaconOverhead 75		//

#define aMaxBeaconPayloadLength (aMaxPHYPacketSize-aMaxBeaconOverhead)	//

#define aMaxFrameOverhead 25		//

#define aMaxMACFrameSize (aMaxPHYPacketSize-aMaxFrameOverhead)

#define aMaxFrameRetries 3		//The maximum number of retries allowed after a transmission failure

#define macAckWaitDuration 540	//symbol period,default is 54 symbol period in 2.4g's channel


/**
 * next are network layer module define
 **/

#define nwkcCoordinatorCapable 1		//set by user at build time

#define nwkcDiscoveryRetryLimit 3		//The maximum number of times a route discovery will be retried

#define nwkcMaxDepth 0x0f

#define nwkcMinHeaderOverhead 8		//The minimum number of octets added by the NWK layer to a NSDU

#define nwkcProtocolVersion 2

/**
 * Time duration in milliseconds, on the originator of a multicast route request,
 * between receiving a route reply and sending a message to validate the route
 **/
#define nwkcWaitBeforeValidation 0x500	

/**
 * Maximum number of allowed communication errors after which the route repair mechanism is initiated
 **/
#define nwkcRepairThreshold 3

/**
 * Time duration in milliseconds until a route discovery expires
 **/
#define nwkcRouteDiscoveryTime 0x2710 

/**
 * The number of times the first broadcast transmission of a route request command frame is retried
 **/
#define nwkcInitialRREQRetries 3 

/**
 * The number of times the broadcast transmission of a route request command
 * frame is retried on relay by an intermediate ZigBee router or ZigBee coordinator
 */
#define nwkcRREQRetries 2

/**
 * The number of milliseconds between retries of a broadcast route request command frame
 **/
#define nwkcRREQRetryInterval 0xfe

/**
 * The minimum jitter, in 2 millisecond slots, for broadcast retransmission of a route request command frame
 **/
#define nwkcMinRREQJitter 1

/**
 * The maximum jitter, in 2 millisecond slots,for broadcast retransmission of a route request command frame
 **/
#define nwkcMaxRREQJitter 0x40

/**
 * The maximum time duration in seconds allowed for the parent and all child
 * devices to retransmit a broadcast message (passive acknowledgment time-out).
 * in second unit.
 **/
#define nwkPassiveAckTimeout 3		

/**
 * The maximum number of retries allowed after a broadcast transmission failure
 **/
#define nwkMaxBroadcastRetries 3

/**
 * Time duration in seconds that a broadcast message needs to encompass the entire network
 **/
#define nwkNetworkBroadcastDeliveryTime (nwkPassiveAckTimeout * nwkBroadcastRetries)

/**
 * If this is set to 0,the NWK layer shall calculate link cost from all neighbor nodes 
 * using the LQI values reported by the MAC layer; Otherwise,it shall report a constant value
 **/
#define nwkReportConstantCost 0

#define nwkStackProfile 0




/**
 * next are aps layer module define
 **/


/**
 * The maximum number of Address Map entries
 **/
#define apscMaxAddrMapEntries 10

/**
 * The maximum number of octets contained in a non-complex descriptor
 **/
#define apscMaxDescriptorSize 64

/**
 * The maximum number of octets that can be returned through the discovery process
 **/
#define apscMaxDiscoverySize 64

/**
 * The maximum number of retries allowed after a transmission failure.
 **/
#define apscMaxFrameRetries 3

/**
 * The maximum number of seconds to wait for an acknowledgement to a transmitted frame.
 * default is the value of nwkcMaxDepth.
 **/
#define apscAckWaitDuration 0x0f 

/**
 * The minimum required size of the APS duplicate rejection table.
 **/
#define apscMinDuplicateRejectionTableSize 10







#endif