ITech IT6821 - 3.14 Saving the Calibration Data to EEPROM (2 DH); 3.15 Setting Calibration Information (2 EH); 3.16 Reading Calibration Information (2 FH); 3.17 Reading Product’s Model, Series Number and Version Information (31 H)

Communication protocol
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3.14 Saving the Calibration Data to EEPROM (2DH)
1
st
byte
Start bit (AAH)
2
nd
byte
Address (0 to 0XFE)
3
rd
byte
Command (2DH)
4
th
to 25
th
byte
System reserve
26
th
byte
Check sum
3.15 Setting Calibration Information (2EH)
1
st
byte
Start bit (AAH)
2
nd
byte
Address (0 to 0XFE)
3
rd
byte
Command (2EH)
4
th
to 23
rd
byte
Calibration information (ASIC code)
24
th
byte
System reserve
25
th
byte
System reserve
26
th
byte
Check sum
3.16 Reading Calibration Information (2FH)
1
st
byte
Start bit (AAH)
2
nd
byte
Address (0 to 0XFE)
3
rd
byte
Command (2FH)
4
th
to 23
rd
byte
Calibration information (ASCII code)
24
th
byte
System reserve
25
th
byte
System reserve
26
th
byte
Check sum
3.17 Reading Product’s Model, Series Number and
Version Information (31H)
1
st
byte
Start bit (AAH)
2
nd
byte
Address (0 to 0XFE)
3
rd
byte
Command (31H)
4
th
to 8
th
byte
Product model (ASIC code)
9
th
byte
Lower byte of the software version
10
th
byte
Higher byte of the software version
11
th
to 20
th
byte
Serial number (ASCII code)
21
st
to 25
th
byte
System reserve
26
th
byte
Check sum
Note
For example, the serial number is 000045, the product model is IT6811, and software
version is V2.03, then the returned data is as follows:
A
A
0
0
3
1
3
6
3
8
3
1
3
1
0
0
0
3
0
2
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
Z
X
X
X
X
X
X
X
X
X
X
5
7