AN3375 datasheet(29/73 Pages) STMICROELECTRONICS

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AN3375

ISO15693 library (intermediate layer)

Doc ID 018637 Rev 1

29/73

3.4.6

ISO15693_WriteSingleBlock function

This function sends a WriteSingleBlock command to the contactless tag.

3.4.7

ISO15693_LockSingleBlock function

This function sends a LockSingleBlock command to the contactless tag.

Table 29.

ISO15693_WriteSingleBlock function description

Function description

Prototype

result = int8_t

ISO15693_WriteSingleBlock(uc8 Flags,

uc8 *UIDin, uc8 BlockNumber,uc8

BlockLength,uc8 *DataToWrite,uc8

AppendCRC, uc8 *CRC16,uint8_t

*pResponse );

Input parameter

Flags: request flags

UIDin: pointer to contactless tag UID

BlockNumber: block index

BlockLength: number of bytes in a block

DataToWrite: pointer to data to be written into contactless

tag memory

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

Table 30.

ISO15693_LockSingleBlock function description

Function description

Prototype

result = int8_t

ISO15693_LockSingleBlock (uc8 Flags,

uc8 *UIDin, uc8 BlockNumber,uc8

AppendCRC,uc8 *CRC16,uint8_t

*pResponse);

Input parameter

Flags: request flags

UIDin: 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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