Installation guide

API functions78

4.52.1

PS4000A_CONDITION structure

A structure of this type is passed to ps4000aSetPulseWidthQualifier and

ps4000SetTriggerChannelConditions in the conditions argument to specify

the trigger conditions, and is defined as follows: -

typedef struct tPS4000ACondition

{

PS4000A_CHANNEL source;

PS4000A_TRIGGER_STATE condition;

} PS4000A_CONDITION;

The above-mentioned functions can OR together a number of these structures to

produce the final trigger condition or pulse width qualifier, which can be any possible

Boolean function of the scope's inputs.

Elements

source, the input to the trigger or pulse width qualifier. See

ps4000aSetChannel for values.

condition, the type of condition that should be applied to each

channel. Use any 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.