AN3375 datasheet(28/73 Pages) STMICROELECTRONICS

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ISO15693 library (intermediate layer)

AN3375

28/73

Doc ID 018637 Rev 1

3.4.4

ISO15693_Inventory16Slots function

This command sends an inventory command to the contactless tag with the number of slot

flag in the request flags reset (0).

3.4.5

ISO15693_ReadSingleBlock function

This function sends a ReadSingleBlock command to the contactless tag.

Table 27.

ISO15693_Inventory16Slots function description

Function description

Prototype

result = int16_t ISO15693_Inventory16Slots(

uc8 Flags , uc8 AFI, uc8 MaskLength, uc8

*MaskValue, uc8 AppendCRC, uc8 *CRC16,

uint8_t *NbTag, uint8_t *pResponse );

Input parameter

Flags: request flags with

inventory flag set, and number of slot

flag reset.

AFI: AFI byte

MaskLength: number of bits in the mask

MaskValue: mask

AppendCRC: CRC16 management

CRC16: pointer to user CRC16

Output parameter

pResponse: pointer to CR95HF response

NbTag: number of contactless tags identified by the inventory

function

Return parameter

ERRORCODE_GENERIC: a parameter value is erroneous or

CR95HF returns an error code

RESULTOK: CR95HF returns a succeeded code

ISO15693_ERRORCODE_PARAMETERLENGTH: MaskLength

value is erroneous

Table 28.

ISO15693_ReadSingleBlock function description

Function description

Prototype

result = int8_t ISO15693_ReadSingleBlock

(uc8 Flags, uc8 *UID, uc8 BlockNumber,uc8

AppendCRC, uc8 *CRC16,uint8_t *pResponse );

Input parameter

Flags: request flags

UID: pointer to contactless tag UID

BlockNumber: block index

AppendCRC: CRC16 management

CRC16: pointer to user CRC16

Output parameter

pResponse: pointer to CR95HF response

Return parameter

RESULTOK: CR95HF returns a succeeded code

ERRORCODE_GENERIC: a parameter value is erroneous or

CR95HF returns an error code

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