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Chapter 2
12
Continuous Scan Mode
Use continuous scan mode if you want to accurately control the
period between conversions of individual channels in a channel-gain
list.
When it receives a software trigger, the module cycles through the
channel-gain list, acquiring and converting the data for each entry in
the list (this process is defined as the scan). The module then wraps to
the start of the channel-gain list and repeats the process continuously
until either the allocated buffers are filled or until you stop the
operation. Refer to
for more information about buffers.
The conversion rate is determined by the frequency of the internal
sample clock; refer to
for more information about the internal
sample clock. The sample rate, which is the rate at which a single
entry in the channel-gain list is sampled, is determined by the
frequency of the input sample clock divided by the number of entries
in the channel-gain list.
To select continuous scan mode, use software to specify the data flow
as continuous.
illustrates continuous scan mode using a channel-gain list
with three entries: channel 0, channel 1, and channel 2. In this
example, analog input data is acquired on each clock pulse of the
input sample clock. When it reaches the end of the channel-gain list,
the module wraps to the beginning of the channel-gain list and
repeats this process. Data is acquired continuously.
Summary of Contents for KUSB-3100
Page 10: ...Contents x...
Page 14: ...About this Manual xiv...
Page 15: ...1 1 Overview Features 2 Supported Software 3...
Page 18: ...Chapter 1 4...
Page 46: ...Chapter 2 32...
Page 47: ...33 3 Supported Device Driver Capabilities...
Page 86: ...Chapter 4 72...
Page 87: ...73 5 Troubleshooting General Checklist 74 Service and Support 77...
Page 100: ...Chapter 6 86...
Page 101: ...87 A Specifications...
Page 112: ...Appendix A 98...
Page 113: ...99 B Connector Pin Assignments...
Page 115: ...101 C Reading from or Writing to the Digital Registers...