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C&H Technologies VX462B User Manual

Vxi pulse generator module
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  • Page 1 (217) 352-9330 | Click HERE Find the Astronics / C&H Technologies VX462B at our website:...
  • Page 2 U S E R ' S M A N U A L V X I P U L S E G E N E R A T O R M O D U L E M O D E L V X 4 6 2 B Manual Part No: 11026339C Artisan Technology Group - Quality Instrumentation ...
  • Page 3 COPYRIGHT C&H Technologies, Inc. (C&H) provides this manual "as is" without warranty of any kind, either expressed or implied, including but not limited to the implied warranties of merchantability and fitness for a particular purpose. C&H may make improvements and/or changes in the product(s) and/or program(s) described in this manual at any time and without notice.
  • Page 4 VME/VXI MODULE WARRANTY C&H Technologies, Inc. warrants its VME/VXI products to be free from defects in material and workmanship for one year from date of shipment. C&H will repair or replace the defective product without charge within the warranty period, provided the defective item is shipped, freight prepaid, to C&H Technologies, at 15809 Vision Drive, Pflugerville, TX 78660.
  • Page 5 AMENDMENT NOTICE C&H Technologies, Inc. makes every attempt to provide up-to-date manuals with the associated equipment. Occasionally, changes are made to the equipment wherein it is necessary to provide amendments to the manual. If any amendments are provided for this manual they are printed on colored paper and will be found at the rear of this manual.
  • Page 6 INTRODUCTION This manual describes the functional operation of the C&H Model VX462B VXI Pulse Generator (Part No. 11026335). This module is one of a number of test and data acquisition/control modules in the VME and VXI format provided by C&H.
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  • Page 8: Table Of Contents

    TABLE OF CONTENTS 1.0 GENERAL DESCRIPTION ..................... 1 1.1 PURPOSE OF EQUIPMENT................1 1.2 SPECIFICATIONS OF EQUIPMENT ..............1 1.2.1 Key Specifications ................1 1.2.2 Electrical ....................1 1.2.3 Mechanical ................... 1 1.2.4 Environmental ..................2 1.2.5 Bus Compliance ................... 3 2.0 INSTALLATION ......................
  • Page 9 LIST OF FIGURES Figure 1. Electrical Timing and Output Characteristics ............2 Figure 2. Simplified Block Diagram..................7 Figure 3. Hardware Configurable Controls ................7 Figure 4. Front Panel......................8 Figure 5. VXI Configuration Registers ................... 10 Figure 6. PRI Register......................11 Figure 7.

  • Page 10: General Description

    GENERAL DESCRIPTION The VX462B is a B-size VXIbus compatible programmable 20 MHz pulse generator with an additional 40 MHz square wave function. The module can output single or double pulse patterns that can be continuous streams or externally triggered or gated. The pulse repetition interval and pulse width are programmable and a delay time may be programmed in the delayed or double pulse modes.

  • Page 11: Environmental

    Pulse Repetition Interval Range: 50ns to 1 sec, in 6 ranges Resolution: 25ns min., 10 bits ±15ns of the programmed value Accuracy: Pulse Width Range: 25ns to 1sec, in 6 ranges Resolution: 25ns min., 10 bits ±15ns of the programmed value Accuracy: Delay Timing (from Trigger Out) Range:...

  • Page 12: Bus Compliance

    1.2.5 Bus Compliance The module complies with the VXIbus Specification Revision 1.4 for B-size register based modules and with VMEbus Specification ANSI/IEEE STD 1014-1987 and IEC 821. Manufacturer ID: FC1 hex Model Code: FFD hex Access Type: Register Based Addressing: Data Transfer: Sysfail: not supported...
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  • Page 14: Installation

    INSTALLATION UNPACKING AND INSPECTION In most cases the VX462B is individually sealed and packaged for shipment. Verify that there has been no damage to the shipping container. If damage exists then the container should be retained as it will provide evidence of carrier caused problems. Such problems should be reported to the carrier immediately as well as to C&H.
  • Page 15 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 16: Functional Description

    FUNCTIONAL DESCRIPTION GENERAL The VX462B is configured, controlled, and statused through on-board registers accessible through the VXI backplane. These registers control the mode of operation, pulse repetition interval, pulse width, delay time, output amplitude and an output relay. A simplified block diagram of the module is shown in Figure 2.

  • Page 17: Indicators

    Two LED indicators are provided on the front panel. One indicates the MODID status and the other indicates the board status. VX462B MODID: This front panel LED illuminates whenever the host processor applies the MODID signal to the slot the module is occupying.

  • Page 18: Configuration Registers

    CONFIGURATION REGISTERS There are several types of registers used to configure and control the VX462B. The VXI configuration registers provide for control and status as required by the VXIbus specification. The other register provides board-level control and status of the pulse repetition interval, pulse width, trigger modes and delay times, and output amplitude.

  • Page 19: Figure 5. Vxi Configuration Registers

    Manuf. ID ⇒ Manufacturer Identification (C & H Engineering = hex FC1) VXI DEVICE TYPE Write Not Used Read Model Code Model Code ⇒ Model code (C&H Model VX462B = hex FFD) VXI Status/Control Write Not Used Read Rdy Pass Rst ⇒...

  • Page 20: Pulse Configuration Registers

    3.5.2 Pulse Configuration Registers Pulse Repetition Interval Register (08) This read/write register controls the pulse repetition interval and the state of the output relay. See Figure 6 for details. PRI Register Write Range Not Used PRI Multiplier Read Range Not Used PRI Multiplier OEN ⇒...

  • Page 21: Figure 7. Delay Register

    Delay Register (0A) This read/write register controls delay of the primary pulse from the trigger out or the delay of the second pulse of a double pulse from the trigger out. See Figure 7 for details. Delay Register Write Not Used Delay Multiplier Read Not Used...

  • Page 22: Figure 9. Control Register

    Pulse Control Register (0E) This read/write register configures the operating mode of the pulse. See Figure 9 for details. Pulse Control Register Write DOU RUN TMD DEL Mode Not Used Read DOU RUN TMD DEL Mode Not Used DOU ⇒ Double Pulse Control (0 = single pulse, 1 = double pulse) RUN ⇒...

  • Page 23: Figure 10. Low/High Level Reference Registers

    Low/High Level Reference Register (10 & 12) Two 12 bit Digital to Analog Converters (DAC) are used to create the low and high level references to the output logic. These registers are write only. See Figure 10 for details. Low Level Reference Registers Write Not Used Reference Voltage...

  • Page 24: Operating Instructions

    Address = VME D16 Address Space + (LA * 64) + C000h. For example, if a VME D16 address space = FF0000h, and the VX462B Logical Address = 8: Address = FF0000h + (8 * 64) + C000h = FFC200h.

  • Page 25: Programming Sequence

    PROGRAMMING SEQUENCE The RUN bit in the Pulse Control Register is the basic On/Off control for pulse generation. A separate output relay connects/disconnects the generated pulse to/from the BNC connector. The output relay is controlled by the OEN bit in the PRI Register. Before enabling the RUN control bit or output relay, be sure to program all of the timing and voltage level registers as prescribed in this manual.

  • Page 26: Triggered Modes Of Operation

    TRIGGERED MODES OF OPERATION The pulse stream can be programmed to run continuously, output a single function when triggered, or output continuously as long as the gate (trigger in) is high (i.e., free run, trigger, or gated repetition.). All three trigger modes are described below. The RUN control bit must be set for any mode of operation to produce a pulse stream.

  • Page 27: Output Voltage Level Programming

    OUTPUT VOLTAGE LEVEL PROGRAMMING Two 12 bit digital to analog converters (DAC's) provide the output switch reference voltages. The DAC's have built in safety features to prevent damage if the positive reference is programmed below the negative voltage; however, the user should try to prevent this situation. The output logic switches the high and low reference voltages into a power op-amp output stage.

  • Page 28: Trouble Analysis

    TROUBLE ANALYSIS BUILT IN TEST AND DIAGNOSTICS Built in test functions are provided for the VX462B in the form of read back registers. The VXIbus registers perform as defined in the VXIbus specification and the timing and control registers have read back capability for data verification and test.
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  • Page 30: Appendix A - Board Layout

    APPENDIX A - BOARD LAYOUT Insert Board Layout Here Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
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  • Page 32: Appendix B - Connectors

    APPENDIX B - CONNECTORS BG0IN* BG0OUT* BG1IN* BG10UT* BG2IN* BG20UT* BG3IN* BG3OUT* SYSRESET* DS1* LWORD* DS0* WRITE* DTACK* IACK* IACKIN* IACKOUT* IRQ7* IRQ6* IRQ5* IRQ4* IRQ3* IRQ2* IRQ1* +12 V -12 V +5 V +5 V +5 V Figure B-1. P1 Pin Configuration Artisan Technology Group - Quality Instrumentation ...

  • Page 33: Figure B-2. P2 Pin Configuration

    MODID Figure B-2. P2 Pin Configuration Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

  • Page 34: Figure B-3. Front Panel Connector

    TRIGGER/GATE INPUT TRIG IN TRIGGER OUTPUT TRIG OUT PULSE PULSE OUT FRONT VIEW Figure B-3. Front Panel Connector Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 35 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 36 N O T E S Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 37 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...
  • Page 38 READER'S COMMENT FORM Your comments assist us in improving the usefulness of C&H's publications; they are an important part of the inputs used for revision. C&H Technologies, Inc. may use and distribute any of the information that you supply in any way that it believes to be appropriate without incurring any obligation whatsoever.
  • Page 39 INSTRUCTIONS In its continuing effort to improve documentation, C&H Technologies, Inc. provides this form for use in submitting any comments or suggestions that the user may have. This form may be detached, folded along the lines indicated, taped along the loose edge (DO NOT STAPLE), and mailed.
  • Page 40 Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com...

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