AN3985 datasheet(43/105 Pages) STMICROELECTRONICS

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AN3985

ISO/IEC 15693 layer

Doc ID 022255 Rev 2

43/105

ISO15693_Write_AFI function

This function sends, through the CR95HF, a write AFI command to the contactless tag in the

field.

ISO15693_ Lock_AFI function

This function sends, through the CR95HF, a Lock AFI command to the contactless tag in the

field.

Table 61.

ISO15693_Write_AFI function description

Prototype

u8 ISO15693_Write_AFI(ISO15693_Tag* MyTag, const u8

Request_flags, const u8* Tag_UID, const u8 Tag_AFI)

Input parameter

Request_flags: Specifies the actions to be performed by the contactless tag and

whether corresponding fields are present or not (1).

Tag_UID: pointer on the UID (optional)

Tag_AFI: AFI of the contactless tag, refer to datasheet for further information.

The Address flag indicates if Tag_UID field will be added to the command (addressed mode).

Output parameter

MyTag: pointer on the structure that contains the tag response

Return parameter

ISO15693_ERROR_CODE: The command failed.

ISO15693_ERROR_PARAMETERS_REQUEST_FLAGS: There is an error

within the request flags parameters.

ISO15693_SUCCESS_CODE: The contactless tag answered the command.

Table 62.

ISO15693_ Lock_AFI function description

Prototype

u8 ISO15693_Lock_AFI (ISO15693_Tag* MyTag, u8

Request_flags, u8* Uid)

Input parameter

Request_flags: Specifies the actions to be performed by the contactless tag and

whether corresponding fields are present or not (1).

Tag_UID: pointer on the UID (optional)

The Address flag indicates if Tag_UID field will be added to the command (addressed mode).

Output parameter

MyTag: pointer on the structure that contains the tag response

Return parameter

ISO15693_ERROR_CODE: The command failed.

ISO15693_ERROR_PARAMETERS_REQUEST_FLAGS: There is an error

within the request flags parameters.

ISO15693_SUCCESS_CODE: The contactless tag answered the command.

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