Keithley KUSB-3100, Руководство пользователя

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Principles of Operation
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2
2
2
2
2
2
2
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2
Make sure that the signals are wired appropriately. Refer to the
KUSB-3100 Getting Started Manual for an example of connecting an
edge-to-edge measurement application.
Rate Generation
Use rate generation mode to generate a continuous pulse output
signal from Counter 0 Out; this mode is sometimes referred to as
continuous pulse output or pulse train output.
The pulse output operation is enabled whenever the Counter 0 Gate
signal is active (high level, low level, or software gate). While the
pulse output operation is enabled, the counter outputs a high-to-low
going pulse with a pulse width of 50% continuously. As soon as the
operation is disabled, rate generation stops.
The period of the output pulse is determined by the C/T clock source
(either internal or external) and the clock divider used. You can
generate an output signal from Counter 0 Out with a frequency of
15 Hz to 12 MHz.
To specify rate generation mode, use software to specify the
counter/timer mode as rate, the C/T clock source as either internal or
external, the clock divider (2 to 65536), and the active gate type
(high-level or software gate). Refer to
page 26 for more information
about gate types.
Make sure that the signals are wired appropriately. Refer to the
KUSB-3100 Getting Started Manual for an example of connecting a rate
generation application.