AN3985 datasheet(45/105 Pages) STMICROELECTRONICS

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AN3985

ISO/IEC 15693 layer

Doc ID 022255 Rev 2

45/105

ISO15693_Get_System_Info function

This function sends, through the CR95HF, an get System Information command to the

contactless tag in the field.

ISO15693_Get_Multiple_Blocks_Security_Status function

This function sends, through the CR95HF, a get multiple blocks security status command to

the contactless tag in the field.

Table 65.

ISO15693_Get_System_Info function description

Prototype

u8 ISO15693_Get_System_Info(ISO15693_Tag* MyTag,

const u8 Request_flags,const u8* Tag_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.

Table 66.

ISO15693_Get_Multiple_Blocks_Security_Status function description

Prototype

ISO15693_Get_Multiple_Blocks_Security_Status(ISO1569

3_Tag* MyTag, const u8 Request_flags, const u8*

Tag_UID, const u8 First_Block_number, const u8

Number_of_Blocks)

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).

First_Block_number: address of the first block to read.

Number_of_Blocks: number of blocks to read after the first one.

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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