Related Manuals for VMIC VMIVME-4122
Summary of Contents for VMIC VMIVME-4122
- Page 1 VMIVME-4122 8-channel 12-bit Analog Output Board Product Manual 12090 South Memorial Parkway Huntsville, Alabama 35803-3308, USA (256) 880-0444 (800) 322-3616 Fax: (256) 882-0859 500-004122-000 Rev. E...
- Page 3 VMIC reserves the right to make any changes, without notice, to this or any of VMIC’s products to improve reliability, performance, function, or design. VMIC does not assume any liability arising out of the application or use of any product or circuit described herein; nor does VMIC convey any license under its patent rights or the rights of others.
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Page 5: Table Of Contents
VMIVME-4122 Buffers and Switches ........ - Page 6 VMIVME-4122 Analog Output: Bipolar, Unipolar ........34...
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Page 7: List Of Figures
Figure 2-4 VMIVME-4122 37-Pin D-Shell Calibration Connector ........ - Page 8 VMIVME-4122 8-channel 12-bit Analog Output Board...
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Page 9: List Of Tables
Table 2-3 VMIVME-4122 Analog Factory-Installed Jumpers........ - Page 10 VMIVME-4122 8-channel 12-bit Analog Output Board...
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Page 11: Overview
The VMIVME-4122 is an Analog Output board providing 8-analog output channels, with 12-bit resolution. The VMIVME-4122 series are voltage output boards. The VMIVME-4122 is a 3U form factor board that fits in a VMEbus chassis. Each output has a dedicated Digital-to-Analog Converter (DAC) assigned to it (two quad DACs). -
Page 12: Features
VMIVME-4122 8-channel 12-bit Analog Output Board Features Listed below are the primary features of the VMIVME-4122 board: • 8-analog output channels • One 12-bit D/A Converter (DAC) per output channel • Built-In-Test (BIT) 12-bit ADC and 8-channel analog multiplexer • Double buffered DAC input data latches •... -
Page 13: Vmebus Products
VmeBus Products VmeBus Products The VMIVME-4122 is a single height 3U form factor board. This board complies with the VMEbus specification (ANSI/IEEE STD1014-1987 IEC 821 and 297) with the following mnemonics: Addressing Mode A16 Responding Address Modifiers $29 (Short nonprivileged I/O access) or... -
Page 14: References
(602) 951-8866 (602) 951-0720 (FAX) www.vita.com The following application and configuration guides are available from VMIC to assist the user in the selection, specification and implementation of systems based on VMIC’s products. Digital Input Board Application Guide (Document No. 825-000000-000) Digital I/O (with Built-in-Test) Product Line Description (Document No. -
Page 15: Safety Summary
Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards of design, manufacture and intended use of this product. VMIC assumes no liability for the customer’s failure to comply with these requirements. Ground the System To minimize shock hazard, the chassis and system cabinet must be connected to an electrical ground. -
Page 16: Warnings, Cautions And Notes
VMIVME-4122 8-channel 12-bit Analog Output Board Warnings, Cautions and Notes STOP informs the operator that a practice or procedure should not be performed. Actions could result in injury or death to personnel, or could result in damage to or destruction of part or all of the system. -
Page 17: Chapter 1 - Theory Of Operation
Introduction The VMIVME-4122 Analog Output board provides 8-analog output channels with 12- bit resolution. The VMIVME-4122 can source or sink 10 mA at up to ±10V. Each output has a dedicated Digital-to-Analog Converter (DAC) assigned to it. After system resets the DACs are driven to zero. The analog outputs can be disconnected from the field wiring for off-line testing. -
Page 18: Functional Organization
VMIVME-4122 8-channel 12-bit Analog Output Board Functional Organization The VMIVME-4122 is divided into the following functional categories. Each category will be discussed in detail in this section of the manual. • Bus interface • Data manipulation • Output DACs • BIT multiplexer and ADC... -
Page 19: Vmebus Interface
Address lines A01 through A07 map the 12 registers into the bottom of a 128-byte range within the VMEbus address space described in “Programming” on page 41. The control signals determine whether data is to be moved to the VMIVME-4122 (write) or from the VMIVME-4122 (read), provide the necessary Data Strobes (DS0*,DS1*). A SYSRESET* input resets all CSR bits. -
Page 20: Output Dacs
The output DACs (two quad DACs) convert the manipulated data into a voltage based upon the reference voltage applied to the converters. In the VMIVME-4122 this reference voltage is selected by jumpers. This determines the output voltage range of the DAC. See Table 2-2 on page 30 for jumper configuration. -
Page 21: Bit Multiplexer And Analog-To-Digital Converter
A write to the Board ADC Access Word Register will convert that channel’s output voltage. The VMIVME-4122 BIT uses an internal 12-bit ADC. The USER may select the ADC input range to match the DAC’s range or the user may leave the ADC... -
Page 22: Board Id Register
Board ID Register The first word location of the VMIVME-4122 family register set is a read/write register. It always reads 33XX HEX for the VMIVME-4122 (the last two digits are Trigger Byte bits). See “Programming” on page 41 for further definitions. -
Page 23: Built-In Power Converter And Adc Power Supply
Built-in Power Converter and ADC Power Supply Built-in Power Converter and ADC Power Supply Electrical power for the VMIVME-4122 analog circuitry is supplied by the on-board DC-to-DC converter as shown in Figure 1-1 on page 24. The DC-to-DC converter transforms +5VDC from the VMEbus P1 connector, into a regulated ±15VDC, with a... -
Page 24: Dac Output Update Control
VMIVME-4122 8-channel 12-bit Analog Output Board DAC Output Update Control Bits in the CSR enable multiple ways to load the DAC’s output register. After the input register is loaded, it takes a “load” signal to transfer the input register value to the output register. -
Page 25: External Simultaneous Input/Output Update
This signal may also be driven as an output. The customer may use it to generate an external update to other VMIVME-4122 boards in the system. Thus, one VMIVME-4122 acts as a master and the other boards are... - Page 26 VMIVME-4122 8-channel 12-bit Analog Output Board...
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Page 27: Chapter 2 - Configuration And Installation
CHAPTER Configuration and Installation Contents Unpacking Procedures ..........28 Configuration . -
Page 28: Unpacking Procedures
All claims arising from shipping damage should be filed with the carrier and a complete report sent to VMIC together with a request for advice concerning the disposition of the damaged item(s). -
Page 29: Configuration
Table 2-3 on page 30 shows the factory installed jumpers while Figure 2-1 on page 31 is a diagram of the user configurable jumpers and test points. Table 2-1 VMIVME-4122 Test Points Test Point Description Voltage Reference Test Point... -
Page 30: Analog Output Connector Description
VMIVME-4122 8-channel 12-bit Analog Output Board Analog Output Connector Description The 8-analog output connections to the VMIVME-4122 board are made using the front panel 37 pin D-Shell subminiature Connector labeled P2. See Table 2-4 on page 32 and Figure 2-2 on page 33 for connector pin and signal assignments. -
Page 31: Figure 2-1 Vmivme-4122 Configuration Jumpers
Analog Output Connector Description Figure 2-1 VMIVME-4122 Configuration Jumpers T P 1 (V R E F) T P 2 T P 3 (A G N D) (A D C I N P U T) E7 E8 E15 E16 E13 E14... -
Page 32: Table 2-4 Vmivme-4122 P2 Connector Pin-Out
VMIVME-4122 8-channel 12-bit Analog Output Board Table 2-4 VMIVME-4122 P2 Connector Pin-Out Pin No. Signal Description Channel Zero Output Channel One Output Channel Two Output Channel Three Output Channel Four Output Channel Five Output Channel Six Output Channel Seven Output... -
Page 33: Figure 2-2 Vmivme-4122 P2 Connector
Analog Output Connector Description Figure 2-2 VMIVME-4122 P2 Connector F RONT V IEW (C ABLE S IDE ) OF "P2" C ONNECTOR PIN 19 PIN 37 PIN 18 PIN 36 PIN 17 PIN 35 PIN 16 PIN 34 PIN 15... -
Page 34: Vmivme-4122 Analog Output Range
VMIVME-4122 8-channel 12-bit Analog Output Board VMIVME-4122 Analog Output Range There are three output ranges which can be selected 10V, 5V, and 2.5V. Selection is made using on-board jumpers, see Table 2-2 on page 30. VMIVME-4122 Analog Output: Bipolar, Unipolar The output can be either unipolar 0 to 10V, 0 to 5V, 0 to 2.5V or bipolar ±10, ±5 and... -
Page 35: Calibration
• Load resistor(s) 1 kΩ watt 1 percent • Standard 37-pin D-Shell subminiature Connector (male) Analog Offset and Gain Calibrations Calibrating the VMIVME-4122: Potentiometer Adjustments This section assumes a unipolar 0 to 10VDC output. 1. R1 Voltage Reference. Adjust POT until test point TP1 = 10.240VDC. -
Page 36: Figure 2-3 Vmivme-4122 Potentiometer Locations
VMIVME-4122 8-channel 12-bit Analog Output Board Figure 2-3 VMIVME-4122 Potentiometer Locations (VREF) R2 R3 R4 R5 R7 R8 R9 R11 R12 R13R14 R15 R16 (AGND) (ADC INPUT) -
Page 37: Calibrating The Vmivme-4122
Channel 7 Offset: R17 Channel 4 Span: R10 Channel 4 Offset: R11 Calibrating The VMIVME-4122 This section assumes a unipolar 0 to 10VDC output R18: Unipolar ADC offset or R20 Bipolar offset Unipolar: With 0.0VDC at TP3 (ADC input) TP2 (ADC GND) (monitoring a zero volt DAC output channel) adjust offset POT for an output code of 000/001 toggle. - Page 38 VMIVME-4122 8-channel 12-bit Analog Output Board 2. R19: ADC GAIN With unit configured for unipolar or bipolar range: With full-scale output (+10.000) VDC at TP3 (ADC input) TP2 (ADC GND) (monitoring a full-scale DAC output channel) adjust R19 for an output code of FFF.
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Page 39: Figure 2-4 Vmivme-4122 37-Pin D-Shell Calibration Connector
Calibration Figure 2-4 VMIVME-4122 37-Pin D-Shell Calibration Connector Front View (Cable Side) of "P2" Connector PIN 19 PIN 37 PIN 18 PIN 36 PIN 17 PIN 35 PIN 16 PIN 34 PIN 15 PIN 33 PIN 14 PIN 32 PIN 13... - Page 40 VMIVME-4122 8-channel 12-bit Analog Output Board...
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Page 41: Chapter 3 - Programming
Base Registers ............42 Introduction The VMIVME-4122 Analog Output boards are controlled through 12 registers. The base VMEbus address is set by configuration of a jumper field. A jumper exists for each of the addresses A15 through A7;... -
Page 42: Base Registers
— Board ID Register The first word location of the VMIVME-4122 register set is a read register. It will read 33XX Hex for the VMIVME-4122 (the last two digits are Board Trigger Byte bits). This allows general-purpose system software to automatically determine what boards have been installed (by reading from a predetermined list of addresses). -
Page 43: External Trigger Status Bits
Base Registers Table 3-2 Word 0: Board Identification Register Bit Map (Read) Board ID (Byte 0) Read Only Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 09 Bit 08 Board Trigger Byte (Byte 1) Read/Trigger Bit 07 Bit 06 Bit 05... -
Page 44: Table 3-4 Word 2: Control And Status/Adc Status Register
Table 4.2.3-2. (Default is logic 00). There are four trigger modes supported on the VMIVME-4122. Two of these are internal modes and two are external modes. The last mode is something of a hybrid between internal and external and... -
Page 45: Trigger Mode Function Definitions
Internal Only Trigger Trigger Mode Function Definitions The VMIVME-4122 has been designed to meet the systems requirements of a broad range of applications. It offers a very flexible set of triggering modes. Systems designers/integrators using a VMIVME-4122 will find their DAC output triggering requirements fall into one of the following classifications: •... - Page 46 (it did not complete reloading of all DAC registers prior to arrival of the external trigger edge). If the VMIVME-4122 returns a value of 11 in the Trigger Register then more than one time constraint was missed. Note...
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Page 47: Figure 3-1 Flow Chart Of The External Synchronization Control
VMIVME-4122 boards under software control. Note that any external driver must be set to Hi-Z state, must be of open collector type or must... -
Page 48: Word 4: Data Access Pointer Register
VMIVME-4122 8-channel 12-bit Analog Output Board Reserved — Not Used Bit 7 to Bit 1 ADC Busy — This bit determines the status of the ADC Bit 0 (see Figure 3-6 below). Table 3-6 Board ADC Busy Bit Map Bit Position... -
Page 49: Word 6: Adc Access Word Register
Base Registers Word 6: ADC Access Word Register ADC channels are read/convert (a write initiates conversion). This read/write register can only be accessed as a word (see Table 3-9 below for bit map). The procedure for using the ADC subsystem is as follows. 1. -
Page 50: Dac Registers
The 8-DAC registers are 16-bit registers that are accessed as a word. Each DAC register corresponds to a channel which is read/write. The Digital-To-Analog Converters used in the VMIVME-4122 contain two registers associated with each of the 8-analog channel outputs. They are the "input/output registers". These 12-bit wide registers are arranged such that all data read or write operations access the input register only. -
Page 51: Table 3-10 Dac Registers Bit Map
Base Registers Table 3-10 DAC Registers Bit Map Bit Position Bit Name Access Indication 0-15 Word 8 Read/Write DAC CH 0 Data Word Bit Position Bit Name Access Indication 0-15 Word A Read/Write DAC CH 1 Data Word Bit Position Bit Name Access Indication... - Page 52 VMIVME-4122 8-channel 12-bit Analog Output Board...
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Page 53: Chapter 4 - Maintenance
Maintenance Maintenance This section provides information relative to the care and maintenance of VMIC’s products. If the product malfunctions, verify the following: • System power • Software • System configuration • Electrical connections • Jumper or configuration options • Boards are fully inserted into their proper connector location •... -
Page 54: Maintenance Prints
VMIVME-4122 8-channel 12-bit Analog Output Board Maintenance Prints User level repairs are not recommended. The drawings and tables in this manual are for reference purposes only.
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