VXI VT1433B - Manuals

Table of Contents In This Book . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iiiSupport Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Chapter 1. Installing the VT1433B Install...

Synchronization in Multiple-mainframe Measurements . . . . . . . . . . . . . . 3-14 Module Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-15 Data Flow Diagram and FIFO Architecture . . . . . . . . . . . . . . . . . . . . . . . 3-15Base Samp...

VT1433B Front Panel Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5 Front panels for four or eight channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-5Standard Front Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

Chapter 10. Replacing Assemblies Replaceable Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2 Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10-2Direct Mail Order System . . . . . . . . . ...

Support Resources Support resources for this product are available on the Internet and at VXI Technologycustomer support centers. VXI TechnologyWorld Headquarters VXI Technology, Inc.2031 Main StreetIrvine, CA 92614-6509 Phone: (949) 955-1894Fax: (949) 955-3041 VXI TechnologyCleveland Instrument Div...

Installing the VT1433B This chapter contains instructions for installing the VT1433B 8-Channel196 kSamples/s Digitizer plus DSP Module and its drivers. This chapter alsoincludes instructions for transporting and storing the module. To inspect the VT1433B The VT1433B 8-Channel 196 kSamples/s Digitize...

To install the VT1433B Caution To protect circuits from static discharge, observe anti-static techniques wheneverhandling the VT1433B 8-Channel 196 kSamples/s Digitizer plus DSP Module. 1 Set up the VXI mainframe. See the mainframe's installation guide for assistance. 2 Select a slot in the VXI main...

5 Set the mainframe’s power switch to standby ( O I ). Caution Installing or removing the module with power on may damage components in themodule. 6 Place the module’s card edges (top and bottom) into the module guides in the slot. 7 Slide the module into the mainframe until the module connects firm...

Install the host interface libraries After the hardware has been assembled, the next step in installing the VT1433Bis to install the host interface libraries. Refer to the chapter titled “GettingStarted With the VT1433B” to continue the installation process. To store the module Store the module in a...

To transport the module • Package the module using the original factory packaging or packaging identical to thefactory packaging. Containers and materials identical to those used in factory packaging are availablethrough VXI Technology. • If returning the module to VXI Technology for service, attach...

2 Getting Started With theVT1433B VT1433B User's Guide Getting Started With the VT1433B 2-1

Introduction This chapter provides assistance in getting the VT1433B running and makingsimple measurements. It shows how to install the software libraries and how torun some of the example programs that are included. For more information see the other chapters in this book and the on-line functionre...

To install the VXI plug&play libraries System Requirements (Microsoft Windows) • An IBM compatible personal computer with either Microsoft Windows 95 or later orMicrosoft Windows NT. (With either Windows OS, use the VXI plug&play library) • Additional hardware and software to connect the IBM...

To install the Windows VXI plug&play drivers for the VT1433B (for Windows 95 and Windows NT) 1 Insert the VXI plug&play Drivers and Product Manuals CD into the CD-ROM drive. 2 Run the program: d:\drivers\DAQ Drivers\driver_vxipnp_e1432_a_06_13.exe.(If the disc is in a driver other than "...

To install the HP-UX VXI plug&play drivers for the VT1433B (for HP-UX systems) 1 Log in as root. 2 Insert the VT1432A CD-ROM into the CD-ROM drive or obtain the latest VT1432Adistribution. 3 Type swinstall. See the HP-UX Reference manual for information on the swinstall command. The VT1432A dist...

The VXI plug&play Soft Front Panel (SFP) Using the soft front panel If running the VT1432A/33B software in Microsoft Windows 95 or Windows NT,the Soft Front Panel (SFP) program can be used to interface with the VT1433B. The Soft Front Panel can be useful for checking the system to make sure that...

The buttons on the right side of the SFP display are defined as follows: Meas This button opens the Measurement Control dialog box. It can set: q Measurement single/repeat q Mode block/continuous q Trigger auto/manual/input/source q Frequency span q Blocksize Input This button opens a dialog box whe...

Display This button opens a dialog box which specifies how the data will be displayed.For each trace, an input channel (or OFF) and an output file can be specified. VXI This button opens a dialog box showing the modules installed in the VXImainframe and indicating which are active and inactive. The ...

VEE example programs scope.vee This program displays four channels with time record and FFT for each channel.For the examples provided below, Agilent © VEE is used. The scope.vee program is located at VXIPNP\Hpe1432\examples\vee\ on aMicrosoft Windows system or at /usr/e1432/vee-examples on an HP-UX...

Other Agilent VEE example programs There are several other example programs that can be examined in the same wayas scope.vee. These programs are in the path VXIPNP\Hpe1432\examples\vee\ ona Microsoft Windows system or /usr/e1432/vee-examples on an HP-UX system. bsrcsine.vee (Burst SouRCe SINE) This ...

C-Language Host Interface Library example programs The VT1432A C-Language Host Interface Library comes with several exampleprograms, which help demonstrate how to use the library. These exampleprograms are found in the the VXIPNP\Hpe1432\examples\ directory. Theprograms in this directory are all ver...

Visual Basic example programs VEE programs and the VXI plug&play Library can be used on both UNIX and PC systems. In addition, the PC can use Visual Basic. Visual Basic exampleprograms are at \Hpe1432\examples\vb\ on a Microsoft Windows system. VT1433B User's Guide Getting Started With the VT143...

What is VXI plug&play ? Agilent uses VXI plug&play technology in the VT1433B. This section outlines some of the details of VXI plug&play technology. Overview The fundamental idea behind VXI plug&play is to provide VXI users with a level of standardization across different vendors wel...

The actual instrument driver itself is a DLL (Dynamic Linked Library) createdfrom: q A set of source (.C) files. q A set of header (.H) files, used for compiling the file as well as to describe thedriver’s calls to any program using the driver. q A standard driver library (.LIB) file, to provide the...

The Soft Front Panel (SFP) The Soft Front Panel is a stand-alone Windows application, built on top of theVXI plug&play driver DLL; it is used for instrument evaluation and debugging and as a demo. It is not a programmable interface to the instrument, nor can itbe used to generate code. The soft ...

Header and Library Files In the Windows environment, the following files are in the directory\Vxipnp\WinXX\Hpe1432 hpe1432.fp The “FP” file used by VEE and CVI hpe1432.hlp Windows help file hpe1432.kb Knowledge base file hpe1432.bas header for Visual Basic hpe1432.exe Soft front panel program Bin\hp...

Channels and groups This section gives some information about using channels and groups. For moredetailed information see the VT1433B help text. Channel Groups In the VT1433B VXI plug&play driver, a channel group is the basic unit of hardware control. To control any channel, it must first be ass...

All modules except the “system module” need to be set to use the VXI TTLtrigger lines as the clock source. Use hpe1432_setClockSource for this. Set the “system module” to output the clock. Use hpe1432_setClockMaster forthis. After this is done, all system sync pulses come from the “system module”and...

Managing Multiple-mainframe Measurements In a single-mainframe measurement, the VT1433B communicates with otherVT1433Bs through the TTLTRG lines. However, when using the VXI-MXI busextender modules, the TTLTRG lines, which carry the group synchronizationpulse and sample clock, are extended only in o...

In the example above, Mainframe A contains the Slot 0 Controller for a multiplemainframe system. Mainframe A is connected to Mainframe B with a VXI-MXIinterface, Agilent/HP E1482B. To successfully manage this multiple mainframeenvironment, use the following guidelines. q Locate modules with logical ...

Synchronization in Multiple-mainframe Measurements A TTL Trigger line between VT1433Bs making group measurements keeps allmodules synchronized. This is an open-collector line where each module holdsthe one designated as the SYNC line low until the module is ready to advance tothe next measurement st...

Module Features Data Flow Diagram and FIFO Architecture The illustration on the next page shows data flow in the VT1433B. In thisexample there are four 4-channel input assemblies for a total of sixteen inputchannels. The data for all channels is sent to the FIFO. The FIFO is dividedinto sections, on...

Base Sample Rates Baseband Measurement Spans The table on the following page shows the measurement spans available for basesample rates, for baseband measurements. “Fs” is the sample frequency or sample rate. The value for zero divide-by-twosteps and no divide-by-five step is the top measurement spa...

Measurement Process Measurement Setup and Control When the VT1433B makes a measurement, the measurement itself consists of twophases: the measurement initialization and the measurement loop. Each of thesephases consists of several states, through which the measurement progresses. The transition from...

Parameter Settings Many parameters are channel-dependent, meaning that each channel can be setindependently of the others in the module. Other parameters aremodule-dependent; changing a module-dependent parameter for a channel willchange it for all channels on that module. For example, changing bloc...

In the BOOTING state, the digital processors of the module load their parametersand their program. Once done, the module releases the Sync/Trigger line andmoves to the BOOTED state. The VT1433B stays in the BOOTED state until itsees a high-to-low transition of the Sync/Trigger line (that is, all the...

Upon entering the ARM state the VT1433B starts saving new data in its FIFO.It remains in the ARM state until the Sync/Trigger line goes high. If theVT1433B is programmed with a pre-trigger delay, it collects enough data samplesto satisfy this pre-trigger delay and then releases the Sync/Trigger line...

Arm and Trigger This section explains some terminology relating the the “Arm” and “Trigger”steps in the measurement loop. As an example a measurement might be set up toarm at a certain RPM level and then subsequently trigger at an external eventcorresponding to top dead center (TDC). The settings wo...

VT1433B Triggering The following is a short discussion of triggering for the VT1433B. Triggering is defined as the transition from the armed state to the triggered state.This transition is caused by a low going edge on a TTL trigger line. Thefunction hpe1432_getTtltrgLines selects which of the eight...

Trigger Level To set the trigger level, use hpe1432_setTriggerMode to select “level” or “bound”mode; and use hpe1432_setTriggerLevel twice to set both the upper and lowertrigger levels. The difference between the upper and lower trigger levels must beat least 10% of full scale (and 10% is usually th...

Data Transfer Modes The VT1433B can be programmed to use either of two data transfer modes:overlap block mode and continuous mode. Block mode will be discussed first. Block Mode (Agilent/HP E1431A) The VT1433B’s overlap block mode is similar the block mode which is used insome Agilent instruments su...

Once it has done this interrupt, the module will not do any more VME interruptsuntil re-enabled with hpe1432_reenableInterrupt. Normally, the last thing a hostcomputer’s interrupt handler should do is call hpe1432_reenableInterrupt. Events that would have caused an interrupt, but which are blocked b...

Host Interrupt Handling When the VT1433B asserts the VME interrupt line, the program will cause thespecified interrupt handler to get called. Typically the interrupt handler routinewill read data from the module and then re-enable VT1433B interrupts withhpe1432_reenableInterrupt. The call to hpe1432...

New features of the VT1433B software Span and center frequency Decimation spans are now allowed for all legal sample rates with the VT1433B. Zoom mode Zoom mode is available for all legal sample rates with the VT1433B. The zoomspan will be allowed to go as high as ctock-freq/2.56 (the maximum non-zo...

Where to get more information There is more information available about the VT1432A. This section shows howto access it and print it, if desired. The Function Reference for VXI plug&play On a PC, the VT1432A Function Reference is in Microsoft Help text. Select theHelp icon in the “VXIPNP” folder...

Introduction The Host Interface Library for the VT1433B is a set of functions that allows theregister-based VT1433B to be programed at a higher level than register reads andwrites. The library allows groups of VT1433Bs to be set up and programmed asif they were one entity. The VT1433B uses the same ...

Parameter Information Description of VT1433B Parameters Some parameters, such as range or coupling, apply to specific channels. When achannel ID is given to a function that sets a channel-specific parameter, only thatchannel is set to the new value. Some parameters, such as clock frequency or data t...

Parameter Lists This section shows which parameters are global parameters, which arechannel-specific and what types of channels the channel-specific parameters applyto. Default values are shown for all of these parameters. In addition, eachparameter is categorized as “abort”, “wait”, “immediate” or ...

Option 1D4 Single-channel Source Parameters Parameter Default Value Changes active Off Abort amp_scale 1.0 Immediate anti_alias_digital On Wait duty_cycle 0.5 Immediate filter_freq 25.6 kHz Wait ramp_rate 1 s Wait range 0.041567 volt Immediate sine_freq 1000 Hz Immediate sine_phase 0 Degrees Immedia...

Option AYF Tachometer Parameters Parameter Default Value Changes active Off Abort input_high Normal Immediate pre_arm_rpm 600 RPM Immediate rpm_high 6000 RPM Immediate rpm_interval 25 RPM Immediate rpm_low 600 RPM Immediate rpm_smoothing 0 Immediate tach_decimate 0 Immediate tach_holdoff 10 µ s Imme...

Channel and Group IDs Most functions in the VT1432A C-Language Host Interface Library take an IDparameter which specifies what channel or group of channels the function shouldapply to. The ID can either be a channel ID or a group ID. If a group ID isused, then the function is applied to each channel...

Group IDs Group IDs are logical IDs which are created by a call toe1432_create_channel_group. This function can be called multiple times to createmultiple groups and each group can contain any combination of channels,including mixtures of different types of channels. The channel groups canoverlap as...

Synchronization in Multiple-mainframe Measurements A TTL Trigger line between VT1433Bs making group measurements keeps allmodules synchronized. This is an open-collector line where each module holdsthe one designated as the SYNC line low until the module is ready to advance tothe next measurement st...

VT1433B Parameters Some parameters, such as range or coupling, apply to specific channels. When achannel ID is given to a function that sets a channel-specific parameter, only thatchannel is set to the new value. Some parameters, such as clock frequency or data transfer mode, apply globallyto a modu...

5 Module Description VT1433B User's Guide Module Description 5-1

Module Features The VT1433B 8-Channel 196 kSamples/s Digitizer plus DSP is a VXI C-sized,scalable input module. The VT1433B may contain one or two 4-channel inputassemblies so that the module may have a total of up to eight inputs. The following is a list of some of the features of the VT1433B. See“...

Block Diagram For block diagrams of the Arbitrary Source and the Tachometer, see the chapterson the Arbitrary Source option and the Tachometer option. VT1433B User's Guide Module Description 5-3 LBUS/FIFO (optional) Local bus Bus connector 96002 micro- processor SRAM 512 kB DRAM 32 MB Input 1 Input ...

VT1433B Front Panel Description Front panels for four or eight channels The VT1433B may have any of several front panels depending on options andnumber of input channels. The following illustration shows front panels for fouror eight channels. VT1433B User's Guide Module Description 5-5 b b u u s s ...

Standard Front Panel This is the front panel for a standard VT1433B (this example has eight inputs).The LEDs and connectors are described on the next page. If the VT1433B has an Arbitrary Source (VT1433B-1D4) or a Tachometer(VT1433B-AYF) its front panel will be different. See the chapter on theArbit...

VXI Backplane Connections Power Supplies and Ground The VT1433B conforms to the VME and VXI specifications for pin assignment.The current drawn from each supply is given in the specifications chapter. Data Transfer Bus The VT1433B conforms to the VME and VXI specifications for pin assignmentand prot...

The Local Bus (VT1433B-UGV) The VXI specification includes a 12-wire Local Bus between adjacent moduleslots. Using the Local Bus, VXI Technology has defined a standard byte-wideECL protocol which can transfer data from left to right at up to 15.7 Mbytes/susing VT1433B. If equipped with VT1433B-UGV, ...

The VT1433B VXI Device Address Space The VXI system architecture defines two types of address space. A16 spaceconsists of 64 kBytes and A24 consists of 16 MBytes. The VT1433B has a 32-bit port through which it has access to the A16 and A24space. It can also use D32 to send and receive data though th...

List of A16 Registers The following lists the A16 registers. For more information see “The A16Registers” in the chapter titled Register Definitions. Address Read Write 3E 16 Parameter 7 Register 3C 16 3A 16 Parameter 6 Register 38 16 36 16 Parameter 5 Register 34 16 32 16 Parameter 4 Register 30 16 ...

Trigger Lines (TTLTRG) TTLTRG consist of eight TTL lines on the VXI backplane on connector P2.They are available to provide synchronization between devices. VXI devices canuse the TTLTRG lines for simple communication with other devices. Forexample, a device can wait for a line to go high before tak...

Providing an External Clock The VT1433B can be programed to accept an external word rate clock from theSample 0 line on the VXI Bus. The digital filters are still functional, providing arange of effective word rates. All sampling is done simultaneously and is notmultiplexed. To connect an External S...

Calibration Description The Cal connector on the front panel of the standard VT1433B can be configured(in software) as either an input or an output. It can be set to any of foursettings: q DC - The VT1433B outputs a DC calibration signal from the millivolt range up to15 volts. q AC - The VT1433B out...

6 The Arbitrary Source Option(VT1433B-1D4) VT1433B User's Guide The Arbitrary Source Option 6-1

Arbitrary Source Description An arbitrary source can be included with the VT1433B 8-Channel 196 kSamples/sDigitizer plus DSP as VT1433B-1D4. (It cannot be installed with a TachometerOption, VT1433B-AYF.) The Arbitrary Source Option can supply arbitrary orsine signals under control of measurement sof...

Block Diagram VT1433B User's Guide The Arbitrary Source Option 6-3 56002 128k x 24 RAM Analog registers Gate array control Digital interpolation filter 8 96002 “B” Busor A24 VXI Signal DAC Range DAC 25.6 kHz 6.4 kHz COLA AMP Summer input Shutdown circuitry OUT Figure 6-1: Arbitrary source option blo...

The Arbitrary Source Option Front Panel The VT1433B with the Arbitrary Source Option may have four or eight inputchannels. The following illustration shows a front panel for eight channels. TheLEDs and connectors are described on the next page. VT1433B User's GuideThe Arbitrary Source Option 6-4 bus...

LEDs and Connectors for the Arbitrary Source Option Status LEDs q Fail: This is the standard VXI “Failed” indicator. It lights briefly when powering upand normally goes out after a few seconds. If it stays on it indicates a hardware failurein the module. q Acs: This is the standard VXI “Access” indi...

7 The TachometerOption (VT1433B-AYF) VT1433B User's Guide The Tachometer Option 7-1

Tachometer Description A tachometer input can be included with the VT1433B 8-Channel 196 kSamples/sDigitizer plus DSP as VT1433B-AYF. (It cannot be installed with an ArbitrarySource Option, VT1433B-1D4.) The Tachometer Option is a two channel tachometer input used to capture the contents of a freeru...

Input Count Division The tachometer can be programmed to divide the input signal. For example if asignal is coming in at 100 counts per second, the tachometer can be set to look atonly every 10th count for a result of 10 counts per second. Holdoff Time The tachometer can be programmed to wait for a ...

The Tachometer Option Front Panel The VT1433B with the Tachometer Option may have four or eight inputchannels. The following illustration shows a front panel for eight channels. TheLEDs and connectors are described on the next page. VT1433B User's GuideThe Tachometer Option 7-4 bus Fail Tach 2 Acs T...

LEDs and Connectors for the Tachometer Option Status LEDs q Fail: This is the standard VXI “Failed” indicator. It lights briefly when powering upand normally goes out after a few seconds. If it stays on it indicates a hardware failurein the module. q Acs: This is the standard VXI “Access” indicator....

8 Break Out Boxes VT1433B User's Guide Break Out Boxes 8-1

Introduction A Break Out Box connects the VT1432A or VT1433B to a set of connectors toreceive input signals. Several types of Break Out Boxes are available. This chapter covers: q VT3240A Voltage Break Out Box q VT3241A ICP ® Break Out Box Other Break Out Boxes include the VT3242A Charge Break Out B...

Break Out Box Cables Making a Custom Break Out Box Cable A cable to connect the Break Out Box with the VT1432A/33B is supplied withthe each of the Break Out Boxes described in this chapter. However, this sectionis included for those users who may want to make their own connecting cable.The drawing o...

Recommendations on wiring for the VT1432A/33B 4-Channel Input Connector Allowed Connections Differential Input ChannelsConnect at VT1432A/33B end of cabling and at DUTRecommended: shielded twisted pair 1 + Diff 4 2 - Diff 4 5 + Diff 3 6 - Diff 3 8 + Diff 2 9 - Diff 2 12 + Diff 1 13 - Diff 1 Input Ch...

Dis-allowed Connections Do NOT connect these pins on VT1432A/33B end of cabling. These signals andsupplies are provided for VXI Technology specified break out boxes and areunspecified for other usage Do not use: 15 I2C_EN 17 I2C_SDA 21 I2C_SCL 16 RFI GND/I2C Shield 18 RFI GND/I2C Shield 22 RFI GND/I...

9 Troubleshooting theVT1433B VT1433B User's Guide Troubleshooting the VT1433B 9-1

Diagnostics The following describes a limited diagnostic program for the VT1432A, VT1433Band VT1434A. It is to be run from an HP-UX host. The program is called“hostdiag.” It can be found with the VT1432A Host Interface Software Libraryat location /usr/e1432/bin. location: /usr/e1432/bin Usage: hostd...

10 Replacing Assemblies VT1433B User's Guide Replacing Assemblies 10-1

Replaceable Parts For information on upgrading the module or replacing parts, contact aVXI Technology sales and service office. See the inside back cover of this guidefor a list of office locations and address. Replacement parts are listed in the following tables: q Assemblies: without VT1433B-AYF o...

CAGE Code Numbers The following table provides the name and address for the manufacturers’ CAGEcode numbers (Mfr Code) listed in the replaceable parts tables. Mfr Code Mfr Name Address 03LB1 VXI Technology, Inc. Irvine, CA 92614 U.S.A. 30817 Laird Technologies Delaware Water Gap, PA 18327 U.S.A. 834...

Front Panel Ref Des VTI PartNumber Qty Description Mfr Code Mfr PartNumber MP200 E1433-00207 1 PNL-FRT, STANDARD 03LB1 E1433-00207 MP201 E1433-00208 1 PNL-FRT, OPT 1DL 03LB1 E1433-00208 MP203 E1432-44301 1 LBL-FRT PNL SMB’S, STD 03LB1 E1432-44301 MP204 E1432-44302 1 LBL-FRT PNL SMB’S, OPT 1D4 03LB1 ...

To remove the top cover 1 Remove the five long screws using a T-10 Torx driver and remove the three short screws using a T-8 Torx driver. Lift cover off. VT1433B User's GuideReplacing Assemblies 10-14

To remove the front panel 1 Remove top cover, see “To remove the top cover.” Gently disconnect cables from the printed circuit assemblies. Using a T-8 Torx driver, remove the two screws that attach the handles to the assembly. Pullout the handles making sure not to lose the two spacers. 2 Using a T-...

3 Remove the nuts that fasten the cables and assembly to the front panel. Using a 1/4-inch nut driver. 4 Remove ribbon cable from the A4 assembly, by pulling back the latch on the connector and and removing cable. Be sure to note the orientation of the cable. VT1433B User's GuideReplacing Assemblies...

5 To replace the front panel with another that does not have its own side brackets, remove the brackets from the old front panel using a T-8 Torx driver. Be sure to note the positioning of the brackets, alignmentis critical. 6 To replace the front panel with another that does not have the label alre...

To remove the input assemblies 1 Remove top cover, see “To remove the top cover.” Remove the front panel, see steps 1 and 2 in “To remove the front panel.” Note that the following steps are showing illustrations of an VT1433B with astandard configuration (two input assemblies). If the VT1433B has op...

3 Remove the top assembly by gently pulling it forward, releasing it from the connectors. 4 Remove the remaining input assembly. VT1433B User's Guide Replacing Assemblies 10-19

To remove the VT1433B-AYF assembly 1 Remove the top cover, see “To remove the top cover.” Disconnect the two cables leading to the A5 assembly and move cables aside. 2 Using a T-10 Torx driver, remove the three screws that attach the assembly to the VT1433B and lift the assembly off. VT1433B User's ...

To remove the A22 assembly 1 Remove the top cover, see “To remove the top cover.” Gently push the silver tabs outward and tilt the A22 assembly forward releasing it from the connector. VT1433B User's GuideReplacing Assemblies 10-22

To remove the A10/A11 assembly 1 Remove top cover and input assemblies. See “To remove the top cover,” and “To remove the input assemblies.” 2A If the module does NOT have VT1433B-AYF or VT1433B-1D4 do the following: Remove the five standoffs using a 1/4-inch nut driver and remove the three screws u...

Appendix A Register Definitions VT1433B User's Guide Register Definitions A-1

The VT1433B VXI Registers The VT1433B 8-Channel 196 kSamples/s Digitizer plus DSP is a register-basedVXI device. Unlike message-based devices which use higher-level programmingusing ASCII characters, register-based devices are programmed at a very lowlevel using binary information. The greatest adva...

The A24 Registers The following A24 registers are accessible at the base address defined by thedevice’s offset Register. The registers at offsets 0 to E 16 are not accessible using longword (D32) accesses. The registers at offsets 10 16 to FFFFF 16 may be accessed by any of the of the D08(EO), D16 o...

The VXI Bus Registers are defined as follows: q Id Register: A read of this 16 bit register provides information about the device ’sconfiguration. Its value is always CFFF16 as defined in the following table. Bit 15-14 13-12 11-0 Contents 11 (Register Based Device) 00 (A16/A24) 111111111111 (Agilent...

q IRQ Status Register: This read-only register indicates the reason for asserting the VMEBus interrupt. The format of the data is identical to that of the Status/ID word returnedby an interrupt acknowledge (IACK) cycle. It differs from the IACK cycle in that theIACK cycle will clear the status bits ...

q Parameter 1-7 Registers: These are 32-bit RAM locations used to pass parametersalong with commands to the device or query responses from the device. See thefollowing section regarding D16/D08 access of 32-bit registers and the communicationprotocol. 32-bit Registers Several of the A16 registers (a...

Command/Response Protocol The Command/Response protocol uses the following resources: q Command/Query Response register implemented as a general purpose RAM q Three parameter registers implemented as a general purpose RAM q Additional A24 accessible RAM contiguous with the parameter registers q The ...

Wait for Done This is the procedure to wait for command completion and check for error. 20 Wait for Command/Parameter Ready true. 21 Wait for Done true. 22 If Err* = 0 , handle error. Complex Sequences A robust procedure for sending a query and reading the response would look likethis: 23 Send Comma...

DSP Bus Registers There are two 32-bit registers in the DSP bus address space. The VXI FPGAdoes not assert TA* when these registers are accessed. 200A 16 DSP Command Register 200B 16 Boot Register Note that these registers appear multiple times in the memory map, since only theaddress lines A31-30, ...

q DSP Command Register: This register is used to assert VXI interrupts and togglevarious status register bits. Many of the bits in this register are grouped into relatedClock and Value pairs. This allow the bits to be modified independently with singleregister writes. In order to change an output va...

Glossary A16 registers Address space using 16 address lines. The VXI definition gives each VXImodule 64 bytes of A16 registers. A24 registers Address space using 24 address lines. VXI modules can configure how muchA24 address space they use. Agilent VEE An Agilent program for graphical programming. ...

Index Numerics 32-bit registers, A-10 writing, A-10 4-channel input, 4-7, 4-10, 7-28-channel input, 5-7, 6-5, 7-58-channel input (break out box), 8-3 A A16 address space, 5-10A16 registers, 5-12, A-2A24 address space, 5-10A24 registers, 5-11, A-4A32 address space, 5-10A-bus, 5-10AC/DC coupling, 5-2a...