Elo TouchSystems ES601068 Rev A manual Eeprom

EEPROM

1.EloWriteEpr(unsigned int Data);

Description: Write 1 byte to 1 location of 1 specific segment

IN: Byte0 of Data is segment Byte1 of Data is offset Byte2 of Data is byte of data

Successful Return value: STATUS_OK (0)

2.EloPreReadEpr(unsigned short Data);

Description: Tell EC the detailed EEPROM location to read data out. This API has to be called together with the following API EloReadEpr.

IN: Byte0 of Data is segment

Byte1 of Data is offset

Successful Return value: STATUS_OK (0)

3.EloReadEpr(unsigned short *pData);

Description: Read 1 byte of data out from EEPROM. This API has to be called together with the above API EloPreReadEpr().

OUT: pData will save the data read out from EEPROM

Successful Return value: STATUS_OK (0)

4.EloGetMotherBoardSerialNumber_DW0(unsigned int *pSerialNumDw0); Description: Retrieve the MotherBoard serial number lower 4 bytes. OUT: The lower 4 bytes will be saved in pSerialNumDw0.

Successful Return value: STATUS_OK (0)

Elo® Tablet NFC Reader Application Note

ES601068 Rev A, Page 18 of 23