libtiepie-hw 1.3.3
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Functions to control the symmetry of a demo signal. More...
Functions | |
TIEPIE_HW_API tiepie_hw_bool | tiepie_hw_oscilloscope_channel_demo_has_symmetry (tiepie_hw_handle handle, uint16_t ch) |
Check whether the currently selected demo signal type supports setting the symmetry. | |
TIEPIE_HW_API double | tiepie_hw_oscilloscope_channel_demo_get_symmetry (tiepie_hw_handle handle, uint16_t ch) |
Get the currently selected demo signal symmetry of a specified demo oscilloscope channel. | |
TIEPIE_HW_API double | tiepie_hw_oscilloscope_channel_demo_set_symmetry (tiepie_hw_handle handle, uint16_t ch, double value) |
Set the demo signal symmetry of a specified demo oscilloscope channel. | |
Functions to control the symmetry of a demo signal.
The symmetry of a signal defines the ratio between the length of positive part of a period and the length of the negative part of a period of the generated signal.
The symmetry is defined as a number between 0 and 1, where 0 defines a symmetry of 0% (no positive part) and 1 defines a symmetry of 100% (no negative part).
Several of the demo signal types support setting the signal symmetry, but others don't. Use tiepie_hw_oscilloscope_channel_demo_has_symmetry() to find out whether the selected demo signal type supports setting the symmetry.
By default the symmetry is set to: 0.5 (50%).
TIEPIE_HW_API tiepie_hw_bool tiepie_hw_oscilloscope_channel_demo_has_symmetry | ( | tiepie_hw_handle | handle, |
uint16_t | ch | ||
) |
Check whether the currently selected demo signal type supports setting the symmetry.
[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 . |
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 |
TIEPIE_HW_API double tiepie_hw_oscilloscope_channel_demo_get_symmetry | ( | tiepie_hw_handle | handle, |
uint16_t | ch | ||
) |
Get the currently selected demo signal symmetry of a specified demo oscilloscope channel.
[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 . |
0
and 1
. TIEPIE_HW_STATUS_NOT_SUPPORTED | The currently selected demo signal type does not support getting the demo signal symmetry. |
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 |
TIEPIE_HW_API double tiepie_hw_oscilloscope_channel_demo_set_symmetry | ( | tiepie_hw_handle | handle, |
uint16_t | ch, | ||
double | value | ||
) |
Set the demo signal symmetry of a specified demo oscilloscope channel.
[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] | value | The requested demo signal symmetry, a number between 0 and 1 . |
TIEPIE_HW_STATUS_NOT_SUPPORTED | The currently selected demo signal type does not support setting the demo signal symmetry. |
TIEPIE_HW_STATUS_INVALID_VALUE | The requested signal symmetry is not valid. |
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 |