Burst, Pattern | Agilent Technologies Agilent 81130A 400, 660MHz

Programming Reference

Programming the Instrument Trigger Modes

Burst

Set Burst mode by setting the :TRIGger:COUNt to the burst count required. The trigger source sets the pulse period for the pulses within the burst (See table in Pulses on page 39).

:TRIGger:COUNt 16	Burst	of 16 pulse	periods
:TRIGger:SOURce INTernal1	Pulse	period from	internal PLL.
:DIGital:PATTern OFF	Disable pattern data

Pattern

Set Pattern mode by setting the :DIGital[STIMulus]:PATTern:SEGMent[1234]:LENGth to the required pattern length, and switching on digital pattern data. The trigger source sets the pulse period for the data pulses (See table in Pulses on page 39):

#Pattern length 512 :DIGital[:STIMulus]:PATTern:SEGMent1:LENGth 512 :DIGital[:STIMulus]:PATTern:SEGMent2:LENGth 0 :DIGital[:STIMulus]:PATTern:SEGMent3:LENGth 0 :DIGital[:STIMulus]:PATTern:SEGMent4:LENGth 0

#Disable counted segment loop :DIGital[:STIMulus]:PATTern:LOOP:COUNt 1

#Jump back to start of segment 1 after the last bit of the last segment (here: segment 1) :DIGital[:STIMulus]:PATTern:LOOP:INFinite[:STATe] ON :DIGital[:STIMulus]:PATTern:LOOP:INFinite:STARt SEGM1

:TRIGger:SOURce INTernal1	Pulse period		from	internal PLL
:DIGital:PATTern ON	Enable	pattern data
:DIGital:SIGNal1:FORMat NRZ	Set OUTPUT 1		data	to NRZ
:ARM:MODE STARted
:ARM:SOURce EXT1	Switch	to started		by EXT1

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Agilent Technologies Agilent 81130A 400, 660MHz manual Burst, Pattern

Contents

Reference Guide Front Panel Display and Softkeys Agilent 81130A 400/660 MHz Pulse/Data Generator Reference Guide Warranty Copyright Limitation of Warranty Services and SupportExclusive Remedies Certification Safety Summary Before Applying PowerGeneral Environmental Conditions Ground the Instrument FusesDo Not Operate in an Explosive Atmosphere Do Not Remove the Instrument Cover Safety Symbols Protective earth ground terminal Manuals About this Book Conventions Used in this Book Contents Agilent 81130A Specifications 102103 105 General Programming Aspects GP-IB Interface Bus General Programming Aspects Agilent 81130A Remote Control Programming Recommendations DISPlay OFF OPC? Common Command Summary Status Model Questionable Status Transition Filters Condition RegisterEvent Register Enable Register NTR PTR Status Byte Standard Event Status Group OPERation Status Group QUEStionable Status Group Programming Reference Agilent 81130A Scpi Command Summary Programming Reference DIGital Copy High Hold SOURce ROSCillator STATus OPERation EVENt? KEY Default Values, Standard Settings Parameter RST, Default Values Load TTL TRIGger COUNt PULSes LEVel TERMination SOURce Programming the Instrument Trigger Modes Continuous StartedGated Pulses Burst Pattern Manually Starting and Gating Started Scpi Instrument Command List Armlevterm Armmode Armsens Armsour Instrument with two Output channels installed Output 2 can be used in parallel Use this command to set up a counted loop across one or more To setup an infinite loop over segment 2 to segment Use this command to set up the destination segment See previous example Digpatt DigpattlooplengDigpattprbs –1 Prbs on Output DataSegment Segment 2 to Segment 4 set to all bits set to zero See DIGPATTSEGM1DATA2 #1501011 Restrictions 32, 0, 0, 0 segment 1 = 32, segments 2, 3, and 4 =Be overwritten no undo DIGPATTSEGM1234TYPE12 DIGitalSTIMulusPATTernUPDate Update the hardware with the new pattern data by sending aPattern generating hardware following a DIGSIGN12FORM Disp Query Filetype is always blank. a directory name has filesize =Event Directoryname Only select a directory name within the current directory Filename,A,copyname,ADirectory of the current directory Mmemdel Mmeminit Mmemstorstat OUTP12COMP OFF CORR12EDELay Output signals are the same at the device-under-test–25.0 ns to +25.0 ns CURR12 Execute the SOURceHOLD CURRent command to enable CURR12OFFSet∝A 50 Ω into 50 Ω Amplitude +10 mA 50 Ω into 50 Ω Execute Sourcehold CURRent command to enableLow-level –10 mA 50 Ω into 50 Ω 8V Outputs 50 Ω into short max mA typical0V Outputs 50 Ω into short max mA typical High-level –10.0 mA CURR12LIMSTAT Output limits cannot program the output-levels beyond Hz with engineering prefixes, or MHZ for Megahertz00 MHz Agilent 81131A 1 kHz to 400 MHz Connector as the frequency source Trigsour EXT Use this command to enable either of the SOURceVOLTage orFreqauto Once To 360 constrained by delay and period limits Programming the pulse phase also executes SOURcePULSeHOLDPHAS12 PULSDCYC12 Specified limits 0.1 – 99.9%, depends on Width & Period To 3.00 µs Pulse-delay PHAS2 180DEG PULSHOLD12 PULSDEL12UNITPulsper Programmed by this command. Note that the specified limits Available resolution depend on the selected sourceConnector as the frequency source Trigsour EXT2 Agilent 81131A 2.5 ns to 1 ms Agilent 81132A 1.5 ns to 1 ms PULSTRAN12UNIT PULSTRAN12 Trailing-edge = Leading-edge fixed coupled Agilent 81131A 0.8 ns or 1.6 nsWithin the defined pulse-width PULSTRIG1POS PULSTRIG1MODEPULSTRIG1VOLT To set width as dutycycle use SOURcePULSeDCYCle12 MHz, 2 MHz, 5 MHz or 10 MHz reference signal using Roscextfreq VOLT12 Agilent 81131A 0.10 Vpp to 3.80 VppAgilent 81132A 0.10 Vpp to 2.50 Vpp Execute Execute the SOURceHOLD VOLTage command to enable VOLT12HIGH VOLT12LOW Hardware, this is a software limit +500 mV–500 mV Limits are always enabled/disabled together Scpi Instrument Command List STATusPRESet Long STATusQUEStionableENABle STATusQUEStionableEVENt?STATusQUEStionableCONDition? STATusQUEStionableNTRansition Message are put into the instruments output buffer Replaced with -350meaning Queue overflowOutput example Systkey Scpi Instrument Command List Specified limits Key Description Emptied by *RST and returns the value -1 when empty Systkey 19 sets the instrument to Local mode Systpres Systsec SYSTVERS? Active Separator between the messagesTrigcoun Set by TRIGgerCOUNt. Changes of the number of pulses on BurstChanges on the channels TRIGCOUNPULS1? ⇒ TRIGCOUN? ⇒ Output 1 or Output Triglevterm Command Trigsour Scpi Instrument Command List Temperature 81132AUsed by the instrument Warranted Performance Specifications Declaration of Conformity Agilent 81130A Specifications SafetyPower requirements Maximum Dimensions H x W x D Recalibration period WeightAcoustic Noise Emission Period & Frequency Width Delay100 Compensation for different cable delays DeskewTransition Times Digital Channel Add Main Output Level Specifications External Input External Clock/PLL Reference Input Specifications of EXT INPUT/CLK-IN REF Input 104 Externally Gated Externally StartedGenerate continuous pulses, bursts, or patterns Specification of Trigger Output Output Modes Patterns and Sequences Burst Mode107 Human Interface Overprogramming Help Key Non-Volatile MemoryMemory Card Function Code All checks and display off Programming Times110 Pulse Parameter Definitions Trigger Delay Time Reference PointPulse Period Pulse Width Pulse Delay Interchannel Delay Skew Linearity Transition Time114 Jitter StabilityPulse Levels 115 Settling Time Preshoot, Overshoot, Ringing116 Repeatability 118 Index 119 120 121 Scpi 122 Front Panel Controls