ACR1281U-C8 – Application Programming Interface
Version 1.00
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6.5. Firmware Upgrade Mode
Low Level Frame Structure:
Command: From PC to Reader (5 bytes)
Command Code
(1 Byte)
Command Data length
(1 bytes)
Instruction Code
(1 byte)
Data Length
(1 byte)
E0h
02h
20h
00h
Response: From Reader to PC (5 bytes)
Response Code
(1 byte)
Response Status
(2 bytes)
Response Data Length
(2 byes)
E1h
INT16 (<0)h
0000h
