MDO3000 Programmer Manual.pdf - 第912页

Commands Listed in A lphabetical Order Group T rigger Syntax TRIGger:A:LOG Ic:INPut? Examples TRIGGER:A:LOG IC:INPUT? m ight re turn :TR IGGER:A:LOGIC:IN PUT :CH1 HIGH;CH2 X;CH3 X indicating that a logic high is expected…

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Commands Listed in Alphabetical Order
THReshold, TRI
Gger:A:SETHold:DATa:SOUrce, TRIGger:A:SETHold:DATa:
THReshold, TRIGger:A:SETHold:HOLDTime, TRIGger:A:SETHold:SETTime,
TRIGger:A:SETHold:THReshold:CH<x>,andTRIGger:A:SETHold:THReshold:
D<x>.
Examples
TRIGGER:A:LOGIC:CLASS? might return :TRIGGER:A:LOGIC:CLASS LOGIC
TRIGGER:A:LOGIC:CLASS LOGIC
sets the trigger A logic class to LOGIc,which
causes the oscilloscope to trigger when the specified logical combinationsof
channels 1, 2, 3, and 4 are met.
TRIGger:A:LOGIc:FUNCtion
This command specifies the logical combination of the input channels for the
A pattern and A state logic triggers.
Group
Trigger
Syntax
TRIGger:A:LOGIc:FUNCtion {AND|NANd|NOR|OR}
TRIGger:A:LOGIc:FUNCtion?
Related Commands
TRIGger:A:LOGIc:INPut:CH<x>
Arguments
AND specifies to trigger if all conditions are true.
NANd specifies to trigger if any of the conditions is false.
NOR specifies to trigger if all conditions are false.
OR specifies to trigger if any of the conditions is true.
Examples
TRIGGER:A:LOGIC:FUNCTION? might return :TRIGGER:A:LOGIC:FUNCTION
NAND
which indicates that
the oscilloscope will trigger if the AND logic conditions
are false.
TRIGGER:A:LOGIC:FUNCTION AND sets the logical combination of channels to
be true when all conditions are true.
TRIGger:A:LOGIc:INPut? (Query Only)
Returns the logic input values for all channels. If a clock channel is defined,
it returns the clock source and edge.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-881
Commands Listed in Alphabetical Order
Group
Trigger
Syntax
TRIGger:A:LOGIc:INPut?
Examples
TRIGGER:A:LOGIC:INPUT? might return :TRIGGER:A:LOGIC:IN PUT:CH1
HIGH;CH2 X;CH3 X
indicating that a logic high is expected on channel 1 while
channel 2 and channel three are “don't care.”
TRIGger:A:LOGIc:INPut:CH<x>
This command specifies the logical input condition for the channel specified
by <x>.
Group
Trigger
Syntax
TRIGger:A:LOGIc:INPut:CH<x>
{HIGH|LOW|X}
TRIGger:A:LOGIc:INPut:CH<x>?
Arguments
HIGH specifies the logic high.
LOW specifies the logic low.
X specifies a "don't care" state.
Examples
TRIGGER:A:LOGIC:INPUT:CH1? might return :TRIGGER:LOG IC:INPUT:CH1
X
indicating that the setting for the A logic trigger input to channel 1 does not
matter.
TRIGGER:A:LOGIC:INPUT:CH2 HIGH sets the A logic trigger input to logic
HIGH for channel 2.
TRIGger:A:LOGIc:INPut:CLOCk:EDGE
Sets the polarity of the clock channel.
Group
Trigger
Syntax
TRIGger:A:LOGIc:INPut:CLOCk:EDGE {FALL|RISe}
TRIGger:A:LOGIc:INPut:CLOCk:EDGE?
2-882 MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual
Commands Listed in Alphabetical Order
Arguments
RISe specifies t
o trigger on the rising or positive edge of a signal.
FALL specifies to trigger on the falling or negative edge of a signal.
TRIGger:A:LOGIc:INPut:CLOCk:SOUrce
This command specifies the channel to use as the clock source. The clock can
be selected as
NONE. A selection of None implies pattern trigger. Any other
selection implies state trigger.
Group
Trigger
Syntax
TRIGger:A:LOGIc:INPut:CLOCk:SOUrce {CH1|CH2|CH3|CH4|
D0|D1|D2|D3|D4|D5|D6|D7|D8|D9|D10|D11|D12|D13|D14|D15|RF|NON E}
TRIGger:A:LOGIc:INPut:CLOCk:SOUrce?
Arguments
CH1–CH4 specifies an analog channel as the clock source.
D0–D15 specifies a digital channel as the clock source. (MSO/MDO4000/B models
only as well as MDO3000 and MDO400C models with option MDO3MSO or
MDO4MSO installed.)
RF specifies the internal RF power level as the clock source. (MDO4000/B/C
models only. Also requires installation of an MDO4TRIG application module.)
NONE specifies a Pattern trigger.
TRIGger:A:LOGIc:INPut:D<x>
This command specifies the logic pattern for a trigger on digital channel <x>,
where x is the channel number.
Group
Trigger
Syntax
TRIGger:A:LOGIc:INPut:D<x> {HIGH|LOW|X}
TRIGger:A:LOGIc:INPut:D<x>?
Arguments
High specifies the logic high state.
Low specifies the logic low state.
X specifies a "don't c
are" state.
MDO4000/B/C, MSO/DPO4000B and MDO3000 Series Oscilloscopes Programmer Manual 2-883