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4. Functions
Stop Condition
The condition for controlling the stop of sampling can be selected from among the last sampling count,
an external trigger, and software abort.
The board stops sampling whenever an error occurs irrespective of the stop condition setting.
-
Last sampling count
The board stops sampling after storing input data to memory for the specified number of times of
sampling.
-
External trigger
The board starts waiting for an external control signal after the specified number of samples have
been performed. Sampling stops when the specified edge (rising edge or falling edge) is input from
the external control signal.
-
Software
Sampling continues indefinitely in this mode. Sampling only stops in response to a software
command or an error.
Event
"Event" works as a function for reporting the occurrence of a certain board state to the application.
The following events can be used in combination depending on the specifications and purpose of the
application.
-
"DA conversion start condition satisfied" event
This event occurs when the DA conversion start condition is satisfied. The event is nullified when
the conversion start condition is "software".
-
"Repeat end" event
This even occurs whenever a repetition is completed.
-
"End of device operation" event
This event occurs when the entire operation including repetitions is completed.
-
"Specified number of output samples complete" event
This event occurs when the number of output samples specified by software have been completed.
This event is used when the device buffer mode is used for data transfer.
-
Specified number of transfers event
This event occurs each time a specified number of samples (set by software) has been completed.
When FIFO format is used, the event occurs when the remaining number of samples falls below a
specified level. The event occurs repeatedly as long as this condition is satisfied.
When ring memory format is used, the event occurs when the number of samples output from
memory reaches a specified value. The event occurs for the specified number of repetitions.
This event is used when the user buffer mode is used for data transfer.
-
Sampling clock error event
This event occurs when conversion stops as an error occurs due to a sampling clock period that is too
short.
-
DA conversion error event
This event occurs when conversion stops due to an DA conversion error.
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AIO-160802LI-PE, AI-1616LI-PE, AO-1604LI-PE
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