User manual

Programming with the PicoScope 6000 Series82

3.9.48.1

TRIGGER_CHANNEL_PROPERTIES structure

A structure of this type is passed to ps6000SetTriggerChannelProperties in the

channelProperties argument to specify the trigger mechanism, and is defined as

follows: -

typedef struct tTriggerChannelProperties

{

short thresholdUpper;

unsigned short hysteresisUpper;

short thresholdLower;

unsigned short hysteresisLower;

PS6000_CHANNEL channel;

PS6000_THRESHOLD_MODE thresholdMode;

} PS6000_TRIGGER_CHANNEL_PROPERTIES

The structure is byte-aligned. In C++, for example, you should specify this using the

#pragma pack() instruction.

Elements

thresholdUpper, the upper threshold at which the trigger must

fire. This is scaled in 16-bit ADC counts at the currently selected

range for that channel.

thresholdUpperHysteresis, the hysteresis by which the trigger

must exceed the upper threshold before it will fire. It is scaled in 16-

bit counts.

thresholdLower, the lower threshold at which the trigger must

fire. This is scaled in 16-bit ADC counts at the currently selected

range for that channel.

thresholdLowerHysteresis, the hysteresis by which the trigger

must exceed the lower threshold before it will fire. It is scaled in 16-

bit counts.

channel, the channel to which the properties apply. This can be one

of the four input channels listed under ps6000SetChannel, or

PS6000_TRIGGER_AUX for the AUX input.

thresholdMode, either a level or window trigger. Use one of these

constants: -

PS6000_LEVEL

PS6000_WINDOW