AN3375 datasheet(26/73 Pages) STMICROELECTRONICS

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ISO15693 library (intermediate layer)

AN3375

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Doc ID 018637 Rev 1

3.4

ISO15693 command functions

This section provides a detailed description of the library functions which send ISO15693

commands. These functions use the CR95HF_SendRecv function of the CR95HF layer (low

level layer) to send commands to a contactless tag and return the tag response.

The output parameter pResponse of the ISO15693 command functions is a pointer to the

CR95HF response (see Section 2.3.4: SendRecv function for a detailed description of the

response format).

3.4.1

ISO15693_CreateRequestFlag function

This command creates the request flags.

Table 24.

ISO15693_CreateRequestFlag function description

Function description

Prototype

result = int8_t ISO15693_CreateRequestFlag

(uc8 SubCarrierFlag,uc8 DataRateFlag,uc8

InventoryFlag,uc8 ProtExtFlag,uc8

SelectOrAFIFlag,uc8 AddrOrNbSlotFlag,uc8

OptionFlag,uc8 RFUFlag);

Input parameter(1)

The input parameters are described in the ISO15693 specification and are defined in ISO15693.h.

SubCarrierFlag: single or double subcarrier

0: single subcarrier

1: double subcarrier

DataRateFlag: contactless tag reply data rate

0: 6 Kbps

1: 26 Kbps

InventoryFlag:

1: for inventory command

0: otherwise

ProtExtFlag: protocol extension flag

SelectOrAFIFlag: Select or AFI flag (depending of inventory flag)

AddrOrNbSlotFlag: Add or number of slot flag (depending of

inventory flag)

OptionFlag: Option flag

RFUFlag: RFU flag

Output parameter

None

Return parameter

Request flags

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