IEI Integration AUPS UART Protocal SPC - Manual (Page 4)

AUPS IEI Technology Corp.
- 4 -
Communication Protocol
Commands to MCU and data returned from MCU are conveyed in the following
communication format :
Communication Protocol
STX Length
Command /
Data
Checksum CR
Write :
Name Description Size
STX Start of text → 0x02 1
Length Length of data
Ex
： 1 byte is 0x01
2 bytes is 0x02
1
Command Command 1
Data data 0 ~ 16
Checksum
Checksum = (STX＋Length＋Command＋
Data) MOD 0x100
1
CR Carriage return → 0x0D 1
Read:
Name Description Size
STX Start of text → 0x02 1
Length Length of data
Ex
： 1 byte is 0x01
2 bytes is 0x02
1
Command Command 1
Data returned data 0 ~ 16
Checksum
Checksum = (STX＋Length＋Command＋
Data) MOD 0x100
1
CR Carriage return → 0x0D 1