AN3375 datasheet(38/73 Pages) STMICROELECTRONICS

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ISO15693 library (intermediate layer)

AN3375

38/73

Doc ID 018637 Rev 1

3.5.6

ISO15693_GetIcRef function

This function returns the IC reference byte of ISO15693 card, extracted from the

ISO15693_GetSystemInfo command response.

3.5.7

ISO15693_IsPresent function

This function returns RESULTOK if an ISO15693 contactless tag is present in the RF field.

3.5.8

ISO15693_IsCollisionDetected function

This function returns RESULTOK if a collision between two contactless tags has been

detected.

Table 47.

ISO15693_GetIcRef function description

Function description

Prototype

result = int8_t ISO15693_GetIcRef

(uint8_t *IcRefOut);

Input parameter

none

Output parameter

IcRefOut: IC reference byte of the ISO15693 contactless

tag

Return parameter

ERRORCODE_GENERIC: a parameter value is erroneous

or CR95HF returns an error code

RESULTOK: CR95HF returns a succeeded code

Table 48.

ISO15693_IsPresent function description

Function description

Prototype

result = int8_t ISO15693_IsPresent

(void);

Input parameter

none

Output parameter

none

Return parameter

ERRORCODE_GENERIC: a parameter value is erroneous

or CR95HF returns an error code

RESULTOK: CR95HF returns a succeeded code

Table 49.

ISO15693_IsCollisionDetected function description

Function description

Prototype

result = int8_t

ISO15693_IsCollisionDetected(uc8

*pTagReply);

Input parameter

pTagReply: pointer of contactless tag response

Output parameter

none

Return parameter

RESULTOK: collision detected

ERRORCODE_GENERIC: collision not detected

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