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PicoScope 2000 Series Programmer's Guide 37

5.20.1

PS2000_TRIGGER_CONDITIONS structure

A structure of this type is passed to ps2000SetAdvTriggerChannelConditions in

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

typedef struct tPS2000TriggerConditions

{

PS2000_TRIGGER_STATE channelA;

PS2000_TRIGGER_STATE channelB;

PS2000_TRIGGER_STATE channelC;

PS2000_TRIGGER_STATE channelD;

PS2000_TRIGGER_STATE external;

PS2000_TRIGGER_STATE pulseWidthQualifier;

} PS2000_TRIGGER_CONDITIONS;

Applicability

See ps2000SetAdvTriggerChannelConditions

Members

channelA, channelB: the type of condition that should be applied

to each channel. Use these constants:

CONDITION_DONT_CARE (0)

CONDITION_TRUE (1)

CONDITION_FALSE (2)

channelC, channelD: not used

external: not used

pulseWidthQualifier: the type of condition to apply to the pulse

width qualifier. Choose from the same list of constants given under

channelA, channelB.

Remarks

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.

The PicoScope 2202 oscilloscope can use only a single input channel (either channel A

or channel B) for the trigger source. Therefore you may define CONDITION_TRUE or

CONDITION_FALSE for only one of these channels at a time. You can, optionally, set

up the pulse width qualifier in combination with one of the input channels.

The PicoScope 2204, 2204A, 2205 and 2205A models can all trigger from both channel

A and channel B, and therefore all support logic triggering.

pico Technology PicoScope 2200A Series Programmer's Guide

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