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4.3 A/D Calibration
1.
Run the
A82XDIAG.EXE
2.
Press “Right Arrow Key” to select “CALIBRATION”
3.
Press the “Down Arrow Key” to select “C. A/D REFERENCE” item.
4.
Press the “Enter Key”
5.
Input a stable 4.9988V to A/D channel 0, pin 1 of CN3
6.
Adjust VR2 until the A/D data shown on the screen is between 4094 to 4095
7.
Press the “ESC Key”
8.
Select and Execute the “D. A/D OFFSET” item
9.
Input a stable 0V to A/D channel 0, pin1 of CN3
10.
Adjust VR1 until the A/D data shown on the screen is between 2048 to 2049
11.
Press the “ESC Key”
12.
Repeat step_3 to step_11 until there is no need to adjust VR2,VR1
13.
Select and Execute “E. PGA OFFSET” item
14.
Input a stable 0V to A/D channel 0, pin 1 of CN3
15.
Adjust VR7 until the A/D data shown in screen between 2048 to 2049
16.
Press “ESC Key”
17.
Select and Execute “F. PGA REFERENCE” item
18.
Input a stable 0V to A/D channel 0 , pin1 of CN3
19.
Adjust VR6 until the A/D data shown on screen is between 0 and 1
OME-A-822PGL/PGH Hardware Manual ----
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