ADLINK Technology NuDAQ ACL-8113A, User Manual

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Operation Theorem
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Operation Theorem
The operation theorem of the functions on ACL-8113A card is described in
this chapter. The operation theorem can help you to understand how to
manipulate or to program this card.
Before programming the ACL-8113A to perform the A/D conversion, you
should understand the following issues:
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A/D conversion procedure
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A/D signal source control
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A/D trigger source control
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A/D data transfer mode
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A/D data format
4.1 A/D Conversion Procedure
For using the A/D converter, users must know about the property of the
signal to be measured at first. Then users should define and control the A/D
signal sources, including the A/D channel, A/D gain, and A/D signal types.
Please refer to section 4.2. For A/D signal source control.
After deciding the A/D signal source, the user must decide how to trigger the
A/D conversion and define/control the trigger source. The A/D converter will
start to convert the signal to a digital value when a trigger signal is rising.
Refer to the section 4.3.
The A/D data should be transferred into PC's memory for further using or
processing. The data can be read by I/O instruction. To process A/D data,
programmer should know about the A/D data format. Refer to section 4.4 for
details.