![](/images/new-backgrounds/1202454/20245463x1.webp)
3.2 D/A Calibration Steps
1.Run A8111CAL.EXE
2.Connect D/A channel0,, pin 30 of CN1 to DVM
3.Adjust VR1 until DVM=5.0000V
4.Press “Enter" key
5.Adjust VR2 until DVM=0.0000V
3.3 A/D Calibration Steps
1.Press “Enter" key
2.Connot A/D Channel 0 to analog ground,
3.Input stable DC 4.9988V to A/d channel 1, pin2 of CN1.
4.Connect DVM to
5.Adjust VR5 until DVM=0.0000V.
6.Press <Enter> Key.
7.Adjust VR4 until A/D data shows 4094 or 4095.
8.Press <Enter> Key
9.Adjust VR3 until A/D data shows 2047 or 2048.
10.Repeat step_3 to step_11 until:
A/D channel 0 input 4.9988VÎA/D reading 4094 or 4095. A/D channel 0 input 0 V ÎA/D reading 2047 or 2048.
11.Press <Enter> Key.
3.4DI/O Testing
12.Use
13.Press <Enter> Key.
30 |