PICO PicoScope 3000 A Series Programmer's Guide

PicoScope 3000A Series Prog rammer's Guide 97
Copyright © 2011-2013 Pico Technology Limited. All rights reserved. ps3000abpg.en r9
2.12.56.1 PS3000A_TRIGGER_CHANNEL_PROPERTIES structure
A structure of this type is passed to ps3000aSetTriggerChannelProperties in the
channelProperties argument to specify the trigger mechanism, and is defined as
follows: -
typedef struct tPS3000ATriggerChannelProperties
{
short thresholdUpper;
unsigned short thresholdUpperHysteresis;
short thresholdLower;
unsigned short thresholdLowerHysteresis;
PS3000A_CHANNEL channel;
PS3000A_THRESHOLD_MODE thresholdMode;
} PS3000A_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 ps3000aSetChannel, or
PS3000A_TRIGGER_AUX for the AUX input.
thresholdMode, either a level or window trigger. Use one of these
constants: -
PS3000A_LEVEL
PS3000A_WINDOW

PICO PicoScope 3000 A Series Specifications

General

Brand	PICO
Model	PicoScope 3000 A Series
Category	Test Equipment
Language	English