frame
Class QueryFrame

java.lang.Object
  frame.RFIDFrame
      frame.RtoTFrame
          frame.QueryFrame

All Implemented Interfaces:

java.lang.Cloneable

public class QueryFrame
extends RtoTFrame

Reader to tag Query frame.

Field

Length

Value

command

4

1000 (decimal 8)

Sel

2

00	All
01	All
10	~SL
11	SL

Target

1

0	~Inventoried
1	Inventoried

Q

4

0000 - 1111 (unsigned int 0-15)

CRC

16
(Optional)

Optional CRC covering entire frame.

Nested Class Summary

Nested classes/interfaces inherited from class frame.RFIDFrame

RFIDFrame.FrameType

Field Summary

Fields inherited from class frame.RtoTFrame

ACK_CMD, CORRUPTED_CMD, QUERY_CMD, QUERYADJ_CMD, QUERYREP_CMD, RtoT_CMD_FIELD, RtoT_CMD_WIDTH, SELECT_CMD

Fields inherited from class frame.RFIDFrame

CRC_SIZE, data, hasCRC, isCorrupted

Constructor Summary

QueryFrame(int sel, int target, int q)

Method Summary

static int	getQ(RFIDFrame f) Extracts Q field bits from f.
static int	getSel(RFIDFrame f) Extracts Sel field bits from f.
static int	getTarget(RFIDFrame f) Extracts Target field bits from f.

Methods inherited from class frame.RtoTFrame

getCommand

Methods inherited from class frame.RFIDFrame

clone, dup, flipBit, getSize, getType, hasCRC, isCollision, isCorrupted, markCorrupted, toString

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

QueryFrame

public QueryFrame(int sel,
                  int target,
                  int q)

Method Detail

getSel

public static int getSel(RFIDFrame f)

Extracts Sel field bits from f.

getTarget

public static int getTarget(RFIDFrame f)

Extracts Target field bits from f.

getQ

public static int getQ(RFIDFrame f)

Extracts Q field bits from f.