AN3375 datasheet(35/73 Pages) STMICROELECTRONICS

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AN3375

ISO15693 library (intermediate layer)

Doc ID 018637 Rev 1

35/73

3.4.18

ISO15693_SendEOF function

This function transmits an RF pulse (EOF). This is useful for Inventory or write command

(ISO15693 command).

3.5

Advanced functions

The functions described in this section use the command functions to perform high level

tasks, e.g. returning the contactless tag UID, the AFI or the DFID field.

3.5.1

ISO15693_SelectProtocol function

This function sends a SelectProtocol command to the CR95HF. For more information,

please refer to CR95HF_ProtocolSelect function.

Table 41.

ISO15693_SendEOF function description

Function description

Prototype

result = int8_t ISO15693_SendEOF

(uint8_t *pResponse );

Input parameter

none

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 42.

ISO15693_SelectProtocol function description

Function description

Prototype

result = int8_t ISO15693_SelectProtocol

(uc8 DataRate, uc8 TimeOrSOF, uc8

Modulation, uc8 SubCarrier, uc8

AppendCRC);

Input parameter

DataRate: Datarate

0: 26 Kbps

1: 52 Kbps

2: 6 Kbps

TimeOrSOF:

0: Respect 312

μs delay

1: Wait for SOF

Modulation: modulation depth (0 for 100 % and 1 for 10 %)

SubCarrier: single or dual subcarrier

0: single subcarrier

1: double subcarrier

AppendCRC: append CRC

0: CRC manages by user

1: CRC will be append by CR95HF

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