The channel trigger level property is used to control at which level(s) the channel trigger responds to the channel input signal. More...

Collaboration diagram for Level:

Functions
TIEPIE_HW_API uint32_t	tiepie_hw_oscilloscope_channel_trigger_get_level_count (tiepie_hw_handle handle, uint16_t ch)
	Get the number of channel trigger levels for a specified channel with the currently selected trigger kind.

TIEPIE_HW_API double	tiepie_hw_oscilloscope_channel_trigger_get_level (tiepie_hw_handle handle, uint16_t ch, uint32_t index)
	Get the currently set channel trigger level value for a specified channel and trigger level.

TIEPIE_HW_API double	tiepie_hw_oscilloscope_channel_trigger_set_level (tiepie_hw_handle handle, uint16_t ch, uint32_t index, double value)
	Set the channel trigger level value for a specified channel and trigger level.

Detailed Description

The channel trigger level property is used to control at which level(s) the channel trigger responds to the channel input signal.

The number of available trigger levels depends on the currently set trigger kind. Use tiepie_hw_oscilloscope_channel_trigger_get_level_count() to determine the number of trigger levels for the currently set trigger kind.

If the trigger level mode is TIEPIE_HW_TLM_RELATIVE, the trigger level is set as a floating point value between 0 and 1, corresponding to a percentage of the full scale input range:

If the trigger level mode is TIEPIE_HW_TLM_ABSOLUTE, the trigger level is set as a floating point value, clipped by the full scale input range.

By default the trigger level is set to 0.5 (50%) of the full-scale range.

Function Documentation

TIEPIE_HW_API uint32_t tiepie_hw_oscilloscope_channel_trigger_get_level_count	(	tiepie_hw_handle	handle,
		uint16_t	ch
	)

Get the number of channel trigger levels for a specified channel with the currently selected trigger kind.

Parameters

[in]	handle	A device handle identifying the oscilloscope.
[in]	ch	The channel number identifying the channel, `0` to `tiepie_hw_oscilloscope_get_channel_count() - 1`.

Returns: The number of available trigger levels for the currently set trigger kind.

Status values

TIEPIE_HW_STATUS_NOT_SUPPORTED	The indicated channel does not support trigger with the current settings.
TIEPIE_HW_STATUS_INVALID_CHANNEL
TIEPIE_HW_STATUS_INVALID_HANDLE	The handle is not a valid oscilloscope handle.
TIEPIE_HW_STATUS_OBJECT_GONE
TIEPIE_HW_STATUS_LIBRARY_NOT_INITIALIZED
TIEPIE_HW_STATUS_SUCCESS

See also: tiepie_hw_oscilloscope_channel_trigger_get_kind; tiepie_hw_oscilloscope_channel_trigger_get_level; tiepie_hw_oscilloscope_channel_trigger_set_level

TIEPIE_HW_API double tiepie_hw_oscilloscope_channel_trigger_get_level	(	tiepie_hw_handle	handle,
		uint16_t	ch,
		uint32_t	index
	)

Get the currently set channel trigger level value for a specified channel and trigger level.

Parameters

[in]	handle	A device handle identifying the oscilloscope.
[in]	ch	The channel number identifying the channel, `0` to `tiepie_hw_oscilloscope_get_channel_count() - 1`.
[in]	index	The trigger level index, `0` to `tiepie_hw_oscilloscope_channel_trigger_get_level_count() - 1`.

Status values

TIEPIE_HW_STATUS_NOT_SUPPORTED	The indicated channel does not support trigger (level) with the current settings.
TIEPIE_HW_STATUS_INVALID_INDEX	The trigger level index is invalid.
TIEPIE_HW_STATUS_INVALID_CHANNEL
TIEPIE_HW_STATUS_INVALID_HANDLE	The handle is not a valid oscilloscope handle.
TIEPIE_HW_STATUS_OBJECT_GONE
TIEPIE_HW_STATUS_LIBRARY_NOT_INITIALIZED
TIEPIE_HW_STATUS_SUCCESS

See also: tiepie_hw_oscilloscope_channel_trigger_get_level_count; tiepie_hw_oscilloscope_channel_trigger_set_level

TIEPIE_HW_API double tiepie_hw_oscilloscope_channel_trigger_set_level	(	tiepie_hw_handle	handle,
		uint16_t	ch,
		uint32_t	index,
		double	value
	)

Set the channel trigger level value for a specified channel and trigger level.

Parameters

[in]	handle	A device handle identifying the oscilloscope.
[in]	ch	The channel number identifying the channel, `0` to `tiepie_hw_oscilloscope_get_channel_count() - 1`.
[in]	index	The trigger level index, `0` to `tiepie_hw_oscilloscope_channel_trigger_get_level_count() - 1`.
[in]	value	The required trigger level.

Status values

TIEPIE_HW_STATUS_VALUE_MODIFIED	The requested trigger time is within the valid range, but not available. The closest valid value is set.
TIEPIE_HW_STATUS_VALUE_CLIPPED	The requested trigger level is outside the valid range and clipped to the closest limit.
TIEPIE_HW_STATUS_NOT_SUPPORTED	The indicated channel does not support trigger (level) with the current settings.
TIEPIE_HW_STATUS_INVALID_INDEX	The trigger level index is invalid.
TIEPIE_HW_STATUS_INVALID_CHANNEL
TIEPIE_HW_STATUS_INVALID_HANDLE	The handle is not a valid oscilloscope handle.
TIEPIE_HW_STATUS_OBJECT_GONE
TIEPIE_HW_STATUS_LIBRARY_NOT_INITIALIZED
TIEPIE_HW_STATUS_SUCCESS

Remarks: Changing the channel trigger level may change the input range if the channel trigger is enabled, trigger level mode is TIEPIE_HW_TLM_ABSOLUTE and auto ranging is enabled.

See also: tiepie_hw_oscilloscope_channel_trigger_get_level_count; tiepie_hw_oscilloscope_channel_trigger_get_level