Installation guide

API functions82

4.54.1

PS4000A_TRIGGER_CHANNEL_PROPERTIES structure

A structure of this type is passed to ps4000aSetTriggerChannelProperties in

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

as follows:

typedef struct tPS4000ATriggerChannelProperties

{

int16_t thresholdUpper;

uint16_t thresholdUpperHysteresis;

int16_t thresholdLower;

uint16_t thresholdLowerHysteresis;

PS4000A_CHANNEL channel;

PS4000A_THRESHOLD_MODE thresholdMode;

} PS4000A_TRIGGER_CHANNEL_PROPERTIES

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. See

ps4000aSetChannel for possible values.

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

constants:

PS4000A_LEVEL

PS4000A_WINDOW