AN3985 datasheet(82/105 Pages) STMICROELECTRONICS

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M24LRxx layer

AN3985

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Doc ID 022255 Rev 2

M24LRxx_Write_EH_Cfg function

This function sends, through the CR95HF, Write_EH_Cfg command to a contactless tag in

the field. On receiving the write Energy Harvesting Configuration command, the M24LRxxE-R

contactless tag writes the data provided to the configuration byte and reports the status of

the command.

M24LRxx_Write_DO_Cfg function

This function sends, through the CR95HF, Write_DO_Cfg command to a contactless tag in

the field. On receiving the Write_DO_Cfg command the M24LRxxE-R contactless tag writes

the data provided to the configuration byte and reports the status of the command.

Table 140.

M24LRxx_Write_EH_Cfg function description

Prototype

u8 Write_EH_Cfg(ISO15693_Tag* MyTag,

const u8

Request_flags,const u8* Tag_UID, u8 Configuration_Byte);

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)

Configuration_Byte: the byte to write to the configuration byte (2)

The Address flag indicates if Tag_UID field will be added to the command (addressed mode).

Only bits 0 to 2 are written, bit 3 is ignored.

Output parameter

MyTag: pointer on the structure that contains the tag response

Return parameter

M24LRxx_ERROR_CODE: The command failed.

M24LRxx_ERROR_PARAMETERS_REQUEST_FLAGS: The inventory flag is

set.

M24LRxx_SUCCESS_CODE: The tag answered the command.

Caution:

M24LRxx_Write_DO_Cfg function description