AN3955 datasheet(32/68 Pages) STMICROELECTRONICS

32 / 68 page

ISO/IEC 14443-3 layers

AN3955

32/68

Doc ID 022017 Rev 1

The ISO14443A_AnticollisionLevel3 function sends an anticollision (level 3)

command to a contactless tag.

Table 39 describes the ISO14443A_AnticollisionLevel3 function.

Table 39.

ISO14443A_AnticollisionLevel3 function description

The ISO14443A_SelectLevel1 function sends a Select (level 1) command to a

contactless tag. Table 40 describes the ISO14443A_SelectLevel1 function.

Table 40.

ISO14443A_SelectLevel1 function description

The ISO14443A_SelectLevel2 function sends a Select (level 2) command to a

contactless tag. Table 41 describes the ISO14443A_SelectLevel2 function.

Table 41.

ISO14443A_SelectLevel2 functiond description

Prototype

int8_t ISO14443A_AnticollisionLevel3 (uint8_t

*pResponse);

Input parameter

None

Output parameter

pResponse: Pointer to the CR95HF response

Return parameter

RESULTOK: The anticollision (level 3) command is successfully emitted to a

contactless tag.

CR95HF_ERROR_CODE: Function failed. The CR95HF returns an error

code.

Prototype

int8_t ISO14443A_SelectLevel1 (uc8 NbByteUIDin,

uc8*UIDin, uint8_t*pResponse);

Input parameter

NbByteUIDin: Number of bytes of UID in parameter

UIDin: Pointer of contacless tag UID

Output parameter

pResponse: Pointer to the CR95HF response

Return parameter

RESULTOK: The Select (level 1) command is successfully emitted to a

contactless tag.

ISO14443A_ERRORCODE_PARAMETER: NbByteUIDin is incorrect.

CR95HF_ERROR_CODE: Function failed. The CR95HF returns an error

code.

Prototype

int8_t ISO14443A_SelectLevel2 (uc8 NbByteUIDin,

uc8*UIDin, uint8_t*pResponse);

Input parameter

NbByteUIDin: Number of bytes of UIDin parameter

UIDin: Pointer of contacless tag UID

Output parameter

pResponse: Pointer to the CR95HF response

Return parameter

RESULTOK: The Select (level 2) command is successfully emitted to a

contactless tag.

ISO14443A_ERRORCODE_PARAMETER: NbByteUIDin is incorrect.

CR95HF_ERROR_CODE: Function failed. The CR95HF returns an error

code.

AN3955 датащи(PDF) 32 Page - STMicroelectronics

AN3955 датащи(HTML) 32 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68

датащи скачать

ссылки URL