ACS ACR1281U-C8, Programming Manual

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ACR1281U-C8 – Application Programming Interface
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Page 17 of 52
3.11. ACR120_WriteEEPROM
Writes the internal EEPROM.
High Level API :
DLLAPI INT16 AC_DECL
ACR120_WriteEEPROM( INT16 hReader,
UINT8 RegNo,
UINT8 EEPROMData);
Parameters Description
hReader Handle to the Reader returned by AC_Open()
RegNo Register number
EEPROMData EEPROM register’s value to write
Return Value INT16 Result code. 0 means success.
Table 12 : ACR120_WriteEEPROM Command Description
Low Level Frame Structure:
Command: From PC to Reader (7 bytes)
Command Code
(1 byte)
Command Data Length
(2 byte)
Instruction Code
(1 byte)
Data Length
(1 byte)
Data
(1 byte) (1 byte)
E0h 04h 0Ch 02h RegNo EEPROMData
Response: From Reader to PC (6 bytes) <<Success >>
Response Code
(1 byte)
Response Status
(2 bytes)
Response Data Length
(2 bytes)
Response Data
(1 byte)
E1h INT16 (>=0) 0001h EEPROMDataStored
Note: The Response Data (EEPROMDataStored) is used for comparison only.
Or
Response: From Reader to PC (5 bytes) << Fail>>
Response Code
(1 byte)
Response Status
(2 bytes)
Response Data Length
(2 byes)
E1h INT16 (<0) 0000h