IVISCOPE_VAL_PROBE_SENSE_ON

Setting this property to IVISCOPE_VAL_PROBE_SENSE_ON configures the oscilloscope to sense the attenuation of the probe automatically. After you enable the automatic probe sense, subsequent queries of this property return the value IVISCOPE_VAL_PROBE_SENSE_ON. Use the IVISCOPE_ATTR_PROBE_SENSE_VALUE property to obtain the actual probe attenuation.

If you set the oscilloscope to sense the probe attenuation automatically, the probe attenuation value can change at any time. When the oscilloscope detects a new probe attenuation value, other settings in the oscilloscope might also change. The driver has no way of knowing when these changes occur. Therefore, when you enable the automatic probe sense capability, the driver disables caching for properties that depend on the probe attenuation. These properties include IVISCOPE_ATTR_VERTICAL_RANGE, IVISCOPE_ATTR_VERTICAL_OFFSET, and all the properties that configure trigger levels. To maximize performance, you should set this property to a manual probe attenuation setting.

If the oscilloscope is set to sense the probe attenuation automatically, setting this property to a positive value disables the automatic probe sense and configures the oscilloscope to use the manual probe attenuation you specify.

Defined Value: -1