Anti-collision support i.e. multi card reader mode

Functions
UFR_STATUS DL_API	EnableAntiCollisionM (UFR_HANDLE hndUFR)
UFR_STATUS DL_API	DisableAntiCollisionM (UFR_HANDLE hndUFR)
UFR_STATUS DL_API	EnumCardsM (UFR_HANDLE hndUFR, VAR uint8_t *lpucCardsNumber, OUT uint8_t *lpucUidListSize)
UFR_STATUS DL_API	ListCardsM (UFR_HANDLE hndUFR, OUT uint8_t *aucUidList, uint8_t ucUidListSize)
UFR_STATUS DL_API	SelectCardM (UFR_HANDLE hndUFR, IN const uint8_t *aucUid, uint8_t ucUidSize, OUT uint8_t *lpucSelctedCardType)
UFR_STATUS DL_API	DeslectCardM (UFR_HANDLE hndUFR)
UFR_STATUS DL_API	GetAntiCollisionStatusM (UFR_HANDLE hndUFR, VAR int8_t *lpcIsAntiCollEnabled, VAR int8_t *lpcIsAnyCardSelected)

Detailed Description

Function Documentation

EnableAntiCollisionM()

UFR_STATUS DL_API EnableAntiCollisionM

(

UFR_HANDLE

hndUFR

)

Multi reader support. This function puts the reader in an “anti-collision” mode of operation.

Parameters

hndUFR

handle of the uFR device

Returns

Operation status

DisableAntiCollisionM()

UFR_STATUS DL_API DisableAntiCollisionM

(

UFR_HANDLE

hndUFR

)

Multi reader support. Exits from “anti-collision” mode of operation i.e. put the reader in to “single card” mode of operation.

Parameters

hndUFR

handle of the uFR device

Returns

Operation status

EnumCardsM()

UFR_STATUS DL_API EnumCardsM	(	UFR_HANDLE	hndUFR,
		VAR uint8_t *	lpucCardsNumber,
		OUT uint8_t *	lpucUidListSize )

Multi reader support. If the reader is in an “anti-collision” mode of operation, this function enumerates cards which are found in the reader field. Otherwise the function returns ANTI_COLLISION_DISABLED status code. All the calls to the ListCards(), SelectCard() and DeselectCard() work with UIDs from the actual UID list of the enumerated cards, which is obtained by the last call of this function.

Parameters

hndUFR	handle of the uFR device
lpucCardsNumber	If the function is successfully executed, the memory location on which this pointer points to, will contain a number of the enumerated cards.
lpucUidListSize	If the function is successfully executed, the memory location on which this pointer points to, will contain a UID list of the enumerated cards size in bytes.

Returns

Operation status

ListCardsM()

UFR_STATUS DL_API ListCardsM	(	UFR_HANDLE	hndUFR,
		OUT uint8_t *	aucUidList,
		uint8_t	ucUidListSize )

Multi reader support. Before calling this function you have to call EnumCards() first. For each UID of the cards detected in the reader field, there are 11 “UID record bytes” allocated in the list. First of those 11 bytes allocated designate actual UID length immediately followed by the exactly 10 bytes of UID (which is maximum hypothetical UID size). E.g, if the actual UID length is 4 bytes, you should ignore last 6 bytes of the UID record.

Parameters

hndUFR	handle of the uFR device
aucUidList	Pointer to the memory alocated for the UID list. Before calling this function, you should alocate atleast *lpucUidListSize bytes which is returned by the prior call to EnumCards() function.
ucUidListSize	Size (in bytes) of the array alocated on the memory location aucUidList points to.

Returns

Operation status

SelectCardM()

UFR_STATUS DL_API SelectCardM	(	UFR_HANDLE	hndUFR,
		IN const uint8_t *	aucUid,
		uint8_t	ucUidSize,
		OUT uint8_t *	lpucSelctedCardType )

Multi reader support. Selects one of the cards which UID is on the actual UID list of the enumerated cards. If there is any of the cards previously selected calling this function you will get an CARD_ALREADY_SELECTED status code and, in such a case, you should call DeslectCard() function prior using SelectCard(). If UID list of the enumerated cards is empty, you will get an NO_TAGS_ENUMERRATED status code.

Parameters

hndUFR	handle of the uFR device
aucUid	pointer to the byte array containing UID of the card which is to be selected
ucUidSize	actual UID size
lpucSelctedCardType	pointer to byte which will contain DlogicCardType constant of the selected card, in case of successful execution of this function

Returns

Operation status

DeslectCardM()

UFR_STATUS DL_API DeslectCardM

(

UFR_HANDLE

hndUFR

)

Multi reader support. If the reader is in a “anti-collision” mode of operation, this function deselects currently selected card. Otherwise function returns ANTI_COLLISION_DISABLED status code.

Parameters

hndUFR

handle of the uFR device

Returns

Operation status

GetAntiCollisionStatusM()

UFR_STATUS DL_API GetAntiCollisionStatusM	(	UFR_HANDLE	hndUFR,
		VAR int8_t *	lpcIsAntiCollEnabled,
		VAR int8_t *	lpcIsAnyCardSelected )

Multi reader support. Calling this function you can get current anti-collision status of the reader.

Parameters

hndUFR	handle of the uFR device
lpcIsAntiCollEnabled	pointer to byte which will contain 1 if reader is in a “anti-collision” mode of operation, 0 otherwise
lpcIsAnyCardSelected	pointer to byte which will contain 1 if reader is in a “anti-collision” mode of operation and there is selected card, 0 otherwise

Returns

Operation status