User Manual

Programming with the PicoScope 4000 Series80

4.10.53.1

TRIGGER_CONDITIONS structure

A structure of this type is passed to ps4000SetTriggerChannelConditions in the

conditions argument to specify the trigger conditions, and is defined as follows: -

typedef struct tTriggerConditions

{

TRIGGER_STATE channelA;

TRIGGER_STATE channelB;

TRIGGER_STATE channelC;

TRIGGER_STATE channelD;

TRIGGER_STATE external;

TRIGGER_STATE aux;

TRIGGER_STATE pulseWidthQualifier;

} TRIGGER_CONDITIONS

Each structure is the logical AND of the states of the scope's inputs. The

ps4000SetTriggerChannelConditions function can OR together a number of

these structures to produce the final trigger condition, which can be any possible

Boolean function of the scope's inputs.

Elements

channelA, channelB, channelC, channelD,

pulseWidthQualifier, the type of condition that should be

applied to each channel. Use these constants: -

CONDITION_DONT_CARE

CONDITION_TRUE

CONDITION_FALSE

The channels that are set to CONDITION_TRUE or

CONDITION_FALSE must all meet their conditions simultaneously

to produce a trigger. Channels set to CONDITION_DONT_CARE are

ignored.

external, aux, not used