Local Bus Description | HP E1429A instruction

Local Bus Data Transfers

Local Bus Description

This section describes the use of the VXI backplane Local bus. The

HP E1429B digitizer uses the Local bus for high-speed (80 MBytes/second) data transfers between two or more devices installed in adjacent mainframe slots.

The Local bus is a set of 12 signal lines on the backplane P2 connector. The Local bus is segmented such that each device with Local bus capability has two interfaces, one to each of the modules in the physically adjacent slots. A device may connect the bus segments together, or connect to each segment independently. Figure 3-14 shows how the lines are used by the

HP E1429B digitizer.

Figure 3-14. Local Bus Signal Line Definitions

Data flows left to right over the Local bus through adjacent slots. The following signal levels are allowed on the bus:

Analog low: ±5.5V, 50Ω

medium: ±16.0V, 500 mA

high: ±42.0V, 500 mA

Digital TTL: -0.5V to +5.5V, 200 mA

ECL: -5.46V to 0.0V, 50 mA

156 Understanding the HP E1429 Digitizer

Chapter 3

Image 156

HP E1429A manual Local Bus Description, Local Bus Signal Line Definitions

Contents

Contents HP E1429A/B Digitizer User’s Manual Contents ARM Data Period Value Table ESR? Contents HP E1429A/B Digitizer User’s Manual HP E1429A/B Digitizer User’s Manual Contents HP E1429A/B 20 MSa/s 2-Channel Digitizer User’s Manual Documentation History March 1 According to ISO/IEC Guide 22 and EN HP E1429A/B 20 MSa/s 2-Channel Digitizer User’s Manual Chapter Contents HP E1429A/B Features and VXIbus Configuration Getting Started Chapter HP E1429A/B VXIbus Configuration HP E1429A/B VXIbus Configuration Assigning the Digitizer to a Commander Preparation for UseDigitizer Logical Address HP E1429A/B Logical Address Switch Location Installing the Digitizer Digitizer Bus Request LevelBus Request Level Guidelines Addressing the Digitizer using an Embedded Controller Addressing the Digitizer over HP-IB Sending the *IDN? Command Introductory ProgramsHEWLETT-PACKARD,E1429A,0,A.02.00 IOOUTPUTSADDR, *IDN? TST? SLFTST.C Repeat Output 70905SYSTERR? Resetting Clearing Digitizer IOOUTPUTSADDR, *TST?IOOUTPUTSADDR, SYSTERR? IOOUTPUTSADDR, DIAGTEST? Subend IOOUTPUTSADDR, *RST*CLS Querying Digitizer Configuration LRN?Integer Repeat LRN.C Chapter Getting Started Instrument and Programming Languages TRIGSTARTIM1 10E-6 OUTPEXT1STAT Ontrigsour EXT1OUTPEXT1STAT OFF Language Programs Command Line Compiling Microsoft QuickC clhpib.lib∙ Microsoft QuickC ∙ Turbo C++ Compiling in the Integrated Environment CLHPIB.LIB Introduction to Programming Other subsystems Using the MEASure CONFigure Commands Port Programming Sequence HP E1429A Programming Sequence Using MEASure Configuring the ChannelsHow to Make Measurements MEAS.C Can be used to set the desired number of pre-arm readings Taking Readings After Using CONFigure SENS1SWEOFFSPOIN CONF.C IOOUTPUTSADDR, FETC1? Querying Command Settings QUERY.C Enable Intr ERRORCHK.C Digitizer Command Module Deadlock Abort Where to go Next Using the Digitizer Programming Language Configuring the Digitizer Input INPUT.C Taking a Burst of Readings ARMCNT.C Level Arming ARMLEVEL.C Pre- and Post-Arm Readings PREPOST.CARMSOUR1 EXT Specifying a Sample Rate SAMPLE.CARMSOUR1 IMM Trigsour TIM Dual Rate Sampling DUALSAMP.CARMSLOP1 POS Senssweoffspoin Using Multiple Digitizers MULTAD.C OUTPTTLT0STAT on OUTPTTLT0IMMFETC2? Using the Packed Data Format PACKED.C Form Pack Diagchanlab For i = 0 i 20 i++ IOOUTPUTSADDR, SYSTERR? VME Bus Data Transfers VMEREAL.C Trigstarsour VME Vinsconfvmemode GENVinsconfvmefeed ’CONVCHAN1’ On Next Using the Digitizer Chapter VMESEG1.C Armstarsour IMM Armstarcoun On Next IOOUTPUTSADDR, *RST*CLS IOOUTPUTSADDR, SYSTERR? VME Bus Data Transfers Using an Embedded Controller DOS On Next Using the Digitizer Chapter On Next On Next #include Files INST.H Inst INST.CPP On Next Chapter Using the Digitizer E1429.H E1429.CPP Local Bus Data Transfers Vinslbusres Vinslbusmode GENVinslbusfeed ’CONVBOTH’ Formdata Pack IOOUTPUTSADDRMEM, Init IOOUTPUTSADDR, Init Using the Digitizer Chapter Chapter Using the Digitizer On Next Vinslbusfeed ’MEMCHAN1’ Vinslbusmode APP IOOUTPUTSADDRA, Init IOOUTPUTSADDRG, InitIOOUTPUTSADDRG, *OPC? On Next Using the Digitizer Chapter On Next Armstarsour TTLT0 Vinslbusfeed ’CONVCHAN1’ OUTPTTLT0FEED ’READY’ Vinslbusmode INS IOOUTPUTSADDRG, Init IOOUTPUTSADDRI, Init IOOUTPUTSADDRG, *OPC?,5 Using the Digitizer Chapter Chapter Using the Digitizer Using the Digitizer Chapter Using the Digitizer Status Registers STATUS.C Using the Digitizer Chapter HP E1429 Digitizer Block Diagram Understanding the Digitizer Understanding the HP E1429 Digitizer Chapter Digitizer Command Paths Message and Register Interfaces Scpi Command Control Digitizer Input Section SENSechan VOLTage Range range Setting the Input Impedance Enabling the 10 MHz Input FilterInverting and Non-inverting Differential Input Ports Setting the Signal Range Digitizer Attenuators Using the Single-Ended Input 1V Range Sensvoltrang HP E1429 Digitizer State Diagram Arming and Triggering ARM-TRIG State Diagram HP E1429 Digitizer Arming and Triggering ARM STARtSEQuence1 Set positive or negative transition Arm Window Boundaries Arm Level Range ARM Synchronization Signals OUTPutEXTernal1FEED source Routing the Signal to a Source Enabling the Synchronization Signal Triggering Digitizer Offset TRIGgerSTARtTIMer1 period Chapter Understanding the HP E1429 Digitizer Digitizer Reference Clock SourceSpecifying the External Reference Frequency TRIGgerSTARtCOUNt count SENSechan SWEepPOINts count Trigger Synchronization Signals OUTPutEXTernal1FEED source Routing the Signal to a Source Analog-to-Digital Converter Data Flow, Storage, and Conversions HP E1429 Digitizer Data Flow HP E1429 Digitizer Reading Storage MEMory Subsystem 10. Memory Segments with Pre and Post-arm Readings Determining the Battery Charge Digitizer Data Formats Packed Reading Conversions Definite Length Arbitrary Block Header Removing the Arbitrary Block Header HP Basic Example Readings Language Example 16-bit readings READ? 11. Retrieving Readings from Digitizer Memory Retrieving Readings Using Retrieving Readings Using FETCh?READ? FETChing Readings from Memory Determining Number of Readings FETChed Separating Pre- and Post-Arm Readings Using DIAGnosticUPLoad SADDress? DIAGnostic Subsystem Memory ManagementLocating Unsegmented Readings Locating Segmented Readings ARMSTARtCOUNtMaximum Readings Ending segment address = segmentnumber * 65536 Therefore, the DIAGnosticFETCh? command would be executed as Locating the Data Register Base Address 12. Digitizer Registers in A16 and A24 Address Space Execute the following HP E1406 Command Module command On Next Data Register Offset VINStrument Subsystem VMEDATA? Setting the VME bus Data Source Segmented Reading Transfers Understanding the HP E1429 Digitizer Chapter Multiple VME Bus Data Transfers 14. Local Bus Signal Line Definitions Local Bus Description How Data is Transferred 15. HP E1429B Local Bus Data Transfer Protocol Understanding the HP E1429 Digitizer Chapter Digitizer Local Bus Commands Local Bus Transfer ConfigurationsLbus Send Multiple Digitizers and Serial Transfers EOF EOB D3 D3 D3EOF EOB D1 D1 D1 Digitizer Configuration Restrictions Setting the Local Bus Transfer Mode Setting the Local Bus Data Source Multiple Local Bus Data Transfers Status Subsystem Commands Digitizer Status RegistersStatus System Registers 16. HP E1429 Status Groups and Associated Registers Questionable Signal Status Group Condition RegisterReading the Condition Register Enable Register Operation Status Group STATusOPERationCONDition? Standard Event Status Group Standard Event Status RegisterPON CME EXE DDE QYE Standard Event Status Enable Register Reading the Standard Event Status RegisterESR? ESE? Status Byte Status Group Status Byte RegisterOper RQS ESB MAV Ques Presetting the Enable Register and Transition Filter Service Request Enable RegisterReading the Status Byte Register STB? Spoll Saving Digitizer Configurations Synchronizing the DigitizerOPC OPC? WAI How to Save and Recall a Configuration RST Understanding the HP E1429 Digitizer Chapter Command Reference Command Types Common Command Format Scpi Command Format Abbreviated CommandsARM Armlevneg Scpi Command Parameters Implied Optional Keywords Variable Command SyntaxParameter Types Explanations, Examples OUTPECLT0FEED ’EXT’ OUTPECLT0FEED \EXT\ Scpi Command Execution Querying Parameter SettingsOptional Parameters Definite length block Executable When Initiated Commands MIN and MAX Parameters in Coupled CommandsArmcoun Trigcoun MAX Scpi Command Reference Linking Ieee 488.2 Common CommandsLinking Multiple Scpi Commands ∙ Executable when initiated Yes ∙ Coupled Command No ABORtABORt Example Aborting a measurement ARM ARMSTARtCOUNt STARtCOUNtSyntax Subsystem Parameter Range Default Name Type Values Parameters ARMSTARtCOUNt ARMSTARtDELay STARtDELayParameter Range Default Name Type Values MINimumMAXimum Example Setting the arming delay ARMSTARtIMMediateSTARtIMMediate ∙ *RST Condition none ARMSTARtLEVelchanNEGative voltage STARtLEVelchanNEGative voltageExample Arming for measurement Comments ∙ Executable while initiated No ARMSTARtLEVelchanPOSitive voltage STARtLEVelchanPOSitive voltage ARMSTARtSLOPen STARtSLOPen Example Setting the arm slope ARMSTARtSOURcen ∙ Related Commands ARMSTARtSLOPen , ARMSTARtLEVelchan Example Setting two arm start sources CALibrationchan COUNt?Subsystem Syntax Numeric None CALibrationchanDATA Data Comments ∙ Executable when initiated No ∙ Coupled Command No Assign @X to 70905FORMAT OFF CALibrationchanDELay DELay CALibrationchanGAIN Gain Seconds ∙ *RST Condition none Example Performing a gain calibration Confarrvolt 100,4.8,DEF,@1 CALibrationchanSECureCODE CALibrationchan SECureSTATe mode ,code enables or disables CALibrationchanSECureSTATe CALibrationchanSTORe CALibrationchan STOReAUTO mode selects whether or not CALibrationchanSTOReAUTOVALue Example Turn automatic storage of calibration values off ∙ Related commands CALibrationGAIN CALibrationchanVALueNumeric 101.80 to Volts Example Setting the calibration value CALibrationchanZEROZero CAL1ZERO DEF,DEF,ALL CONFigurechan CONFigurechanARRayVOLTageDC size,expectedARRayVOLTageDC CONFigurechanARRayVOLTageDC Maximum Voltage Resolution Range Volts Value CONFARRayVOLT 20,1.5,@3 DIAGnostic CALibrationchan CONVerge? DIAGnosticCALibrationchan GAINSENSitivity? CALibrationchan ZEROSENSitivity?CHANnelchan LABel DIAGnosticFETCh? ∙ Coupled Command No ∙ Related Commands ABORt, FETCh?Example 1 Tagging the data with channel number Example 2 Reading back PACKed data HP Basic program DIAGnosticMEMorychanFILL DIAGnosticMEMorychan Fill numsegments, count sets upMEMorychanADDResses? DIAGnosticPEEK? PEEK?Thru Ffffff None DIAGnosticPOKE Example Examining the setting of the traffic registerExample Changing the contents of the traffic register Poke DIAGnosticSGET? SGET?Sput TEST? Command Reference FETChchan Subsystem FETChchan FETChchan Subsystem Command Reference FETChchanCOUNt? FETC1COUN? FETChchanRECover? ∙ *RST Condition none Example Recovering readings in memory FORMat Subsystem FORMat ∙ Related Commands READ?, FETCh? Example 1 Setting the data format to 64 bit realsFORMatDATA INITiate IMMediate INITiateIMMediate Example Placing the HP E1429A in the wait-for-arm state INPutport Subsystem INPutport INPutportFILTerLPASsSTATe mode enables or disables INPutportFILTerLPASsSTATeIMPedance Example Enabling the 10 MHz low-pass filter Example Setting 75 Ω input impedance INPutportSTATeSTATe Example Disabling input port MEASurechan ARRayVOLTageDC?MEASurechanARRayVOLTageDC size,expected MEASurechanARRayVOLTageDC? Maximum Voltage Resolution MEAS1ARRayVOLT? 20,1.5,@3 BATTerySTATe Example Enable memory to be non-volatileMEMory ∙ *RST Condition not affected MEMoryBATTeryCHARge? ∙ *RST Condition none Example Check the battery charge OUTPut ECLTrgnFEED Example Setting the ECLTrg0 sync pulse source OUTPutECLTrgnSTATeECLTrgnSTATe ∙ *RST Condition Parameter Range Default Name Type Values Units OUTPutEXTernal1FEEDEXTernal1FEED Boolean ARMSTARtSEQuence1 None RFTRigger SENSe12ROSCillator TRIGgerSTARtSEQuence1 Example Setting the sync pulse source OUTPutEXTernal1STATeEXTernal1STATe TTLTrgnFEED OUTPutTTLTrgnFEED Numeric Through NoneARMSTARtSEQuence1 None Example Enabling sync pulse for READy on TTLTrg5 OUTPutTTLTrgnSTATe Example Enabling sync pulse output to TTLTRG0* and TTLTRG5 READchan Subsystem Command Reference READchan Command Reference READchan Subsystem SENSe SENSechanFUNCtion SENSechanFUNCtion SENSechanFUNCtion SENSechanFUNCtion Example Selecting the single ended input on channel SENSechanROSCillator EXTernalFREQuency SENSechanROSCillatorSOURce SOURce Example Setting the Reference Oscillator Source SENSechan SWEep SENSechan SWEepOFFSetPOINts count OFFSetPOINts countNumber Maximum Number Memory Segments Example Setting 50 pre-arm readings on channel 1, input port SENSechan SWEepPOINts count MINimum selects 1 reading Example Setting 500 readings SENSechanVOLTageDC RANGeSENSechan VOLTageDCRANGe range selects the range for Range Measurement Resolution Allowable Setting Volts Ports Comments ∙ Executable when initiated YesSENSechanVOLTageDC RANGe SENSechanVOLTageDC RESolution? RESolution?Example Selecting the 102.35 Volt range on channel STATus Operation Status Register Subsystem Syntax Questionable Signal Status Register STATusOPCINITiateOPCINITiate OPERationQUEStionableENABle STATusOPERationQUEStionableCONDition?OPERationQUEStionableCONDition? Example Setting the Operation register enable mask STATusOPERationQUEStionableEVENt?OPERationQUEStionableEVENt? Through +32767 None Non-decimal Numeric STATusOPERationQUEStionableNTRansition OPERationQUEStionablePTRansition STATusPRESet PRESet ERRor? Example Reading the error queueSYSTem VERSion? Command Reference TRIGger Subsystem TRIGger TRIGger Subsystem Command Reference TRIGgerSTARtCOUNt Example Taking 20 readings 8 pre-arm and 12 post-arm TRIGgerSTARtIMMediate STARtSOURce TRIGgerSTARtSOURce Bushold TRIGgerSTARtTIMer1 STARtTIMer1Example Setting the start trigger source Reference period to TRIGgerSTARtTIMer1 STARtTIMer2 Period Value Table∙ *RST Condition 5.0E-8 seconds Multiple Period TRIGgerSTARtTIMer2 ∙ *RST Condition 1.0E-7 seconds VINStrument Local Bus transfers VME VXI data transfer Bus transfers Data voltagelist VINStrument CONFigureLBUSFEED VINStrumentCONFigureLBUSMEMoryINITiate CONFigureLBUSMEMoryINITiate VINStrumentCONFigureLBUSMODE CONFigureLBUSMODE VINStrumentCONFigureLBUSRESet CONFigureLBUSRESetExample Setting the Local Bus operation mode APPendGENerate None INSertOFF PIPeline VINStrumentCONFigureLBUSSENDPOINts CONFigureLBUSSENDPOINts VINStrumentCONFigureLBUSSENDPOINtsAUTO CONFigureLBUSSENDPOINtsAUTOBoolean On OFF None VINStrumentCONFigureTESTDATA CONFigureTESTDATAVINStrumentCONFigureTESTDATA voltagelist configures ∙ *RST Condition none Example Testing Local Bus operation VINStrumentCONFigureVMEFEED VINStrumentCONFigureVMEMEMoryINITiate CONFigureVMEMEMoryINITiate VINStrumentCONFigureVMEMODE CONFigureVMEMODE VINStrumentCONFigureVMESENDADDRessDATA? CONFigureVMESENDADDRessDATA?Example Setting the VXIbus data transfer bus operation mode GENerateOFF None VINStrumentIDENtity? HEWLETT-PACKARD Virtual INSTRUMENT,ANY ATOD,0,A.01.00 IEEE-488.2 Common Commands Category Command Title ∙ Executable when initiated Yes CLSDMC EMC and *EMC? ESE and *ESE?Example Define macro to start measurement Example Enable all error events ESR?GMC? String IDN? LMC?Example Query macro definition HEWLETT-PACKARD,E1429,0,A.01.00 LRN? OPC OPC? PMCPUD and *PUD? RCL Block Through 63 characters None Data String RMC RST SAV SRE and *SRE? STB? TRG TST? WAI Command Quick Reference Chapter Chapter Command Quick Reference Unmask VINStrument Scpi Confirmed Commands Scpi Conformance Information Chapter Scpi Conformance Information Scpi Conformance Information Chapter Specifications Appendix Contents Read-Out To VME BusTo Local Bus E1429B only Number of Partitions Amplitude Characteristics Signal Conditioning Total Readings per Partition Signal-to-Noise Ratio Output FormatsGain and Offset 4.3.1, note Filtering Converter Supplemental Characteristics Single-ended inputs Connector BNCWord Error Rate 4.15 qualified error level word error rate Integral Nonlinearity 4.4.3, Note Single-ended inputs, supplemental characteristics Analog Bandwidth 4.6.1 filter offEffective bits on different ranges Crosstalk between channels Appendix a Specifications Differential Inputs, supplemental characteristics Effective bits, relative to 1V single-ended range Frequency Sample Rate Characteristics Internal Timer Trigger Sample Clock SubsystemCrosstalk Timebase and Trigger additional supplemental characteristics Bus Access and Connectors General Characteristics EMC Specifications Appendix a Useful Tables ERRORCHK.C IDN.C HP BASIC, CSLFTST.C RSTCLS.C LOCALAD.C LBUS2PST.CLBUSAUTO.C STATUS.C Mode OFF EMCCalstorauto CAL1VAL DEL SourSLOP1 POS Table B-3. HP E1429A/B Error Messages Code Description Appendix B Useful Tables Useful Tables Appendix B Appendix B Useful Tables Local bus test data size not System Configuration Register Programming Reading and Writing to the Registers Register reads and writes are 8-bits Addressing the Registers Figure C-1. HP E1429A/B A24 Address Space Determining the A24 Base Address Appendix C Register Programming A24READ.C Register Descriptions A24 Register Table See Base + Input Configuration Registers A/D Status RegisterA/D Serial Register Base +0316 A/D Parallel Strobe Register A/D Shift RegisterBase +0B16 Bit Name Function Arm and Trigger Configuration Registers Abort and Arm Immediate RegisterArm Status Register Base + Timebase Initiation Registerbase + Arm Source Register Power-on/Reset Settings Arm Internal Bus Registerbase +Arm Source Register Arm Control Register Power-on/Reset Settings Arm Control RegisterBase + 4B16 Trigger Source Register Power-on/Reset Settings Trigger Source RegisterBase + 4D16 Register Programming Appendix C Reference Oscillator Register Power-on/Reset Settings Reference Oscillator RegisterBase + 4F16 Arm delay Register Base + 5116 and base +5316 Arm Count Register Base + 5516 and base +Arm Count Latch Register Trigger Immediate Registerbase + 5D16 Decade Division RegisterBinary Division Register Base +6116 Pre-Arm Reading Count Register power-On/Reset Settings Post-Arm Reading Count Register power-On/Reset SettingsPre-Arm Reading Count Registers Base + 7316 and base + Traffic Register Power-on/Reset Settings Memory Control RegistersTraffic Register Base +0216 Pulse Register Channel ID RegisterData Register Memory Control Register Power-on/Reset Settings Memory Control RegisterBase +2116 Memory Address Registers Base +2316 to base +2716 Terminal Address Register Base Address RegistersBase +2B16 Base +2D16 and base +2F16 Using the A/D Shift Register Figure C-2. Accessing the A/D Shift Register Bit Name Setting Setting Measurement Range Setting the Input ImpedanceProcedure Enabling the 10 MHz Filter Input Post 14 dB Attenuator Bits Bits 34 Bits 35 37,45 38,46 Checking the Idle State Setting the Digitizer Configuration Setting the Arm Sources Setting the Arm Count Setting the Arm Delay Setting the Reference Source Setting the Trigger Source Sending an Arm Immediate Signal Sending a Trigger Immediate Signal Aborting Measurements Re-initiating the Digitizer Initializing Digitizer Memory Appendix C Register Programming Initializing Initiating Timebase Processor MSB LSB Timebase reset Trigger countSample rate Data source Count is 1 and the post-arm count is y-3 Midsb LSB Register Programming Appendix C Retrieving Data from Memory Initializing Digitizer Memory to Retrieve Data Register Programming Appendix C MSB LSB Example Program Appendix C Register Programming REGPROG.C IOOUTPUTSADDR, READ? On Next On Next On Next On Next On Next On Next On Next On Next On Next On Next On Next Void checkerrorchar *function Char Into161 Length = Register Programming Appendix C Local Bus Interleaved Transfers Interleaved Transfers Setting Interleaved Transfer Mode Local Bus Interleaved Transfers Appendix D Procedure LBUSINTR.C Trigstarsour ECLT0 Trigstarsour TIMTrigstartim 1E-6 OUTPECLT0FEED ’TRIG’ Tracdef SET1 Store readings 80 bytes in SET1 IOOUTPUTSADDRMEM, *OPC? IOOUTPUTSADDRG, AborIOOUTPUTSADDRI, Abor Local Bus Interleaved Transfers Appendix D Appendix D Local Bus Interleaved Transfers Local Bus Interleaved Transfers Appendix D Index HP E1429A/B User’s Manual Index Index HP E1429A/B User’s Manual HP E1429A/B User’s Manual Index Index HP E1429A/B User’s Manual Scpi Index HP E1429A/B User’s Manual