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Agilent Technologies E2290A User's Manual And Programming Manual

16-bit digital i/o
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  • Page 1 T h e t e s t & me a s u r e me n t e q u i p me n t y o u n e e d a t t h e p r i c e y o u w a n t . A l l t e s t I n s t r u me n t s , I n c .
  • Page 2 Agilent M-Modules Agilent E2290A 16-Bit Digital I/O User’s Manual and SCPI Programming Guide Where to Find it - Online and Printed Information: System installation (hardware/software) ....VXIbus Configuration Guide* ................Agilent VIC* Module configuration and wiring .......This Manual Register-Based Programming......This Manual VXIplug&play programming ......VXIplug&play Online Help VXIplug&play example programs .....VXIplug&play Online Help...

  • Page 4: Table Of Contents

    Output Circuitry ....................12 Input Circuitry ..................... 13 Wiring and Configuration ................... 14 Wiring to the Supplied Mating Connector ............14 Agilent E2290A Digital I/O Wiring Information ..........15 Chapter 2 SCPI Programming ..................... 17 General Information....................17 Example 1: Reset, Self Test, and Module ID ............. 17 Example 2: Source and Sense (Output and Input) ............
  • Page 5 STATus:QUEStionable[:EVENt]? ..............44 SYSTem Subsystem ....................45 SYSTem:ERRor? ....................45 SYSTem:VERSion? .................... 45 IEEE 488.2 Common Commands................46 Agilent E2290A SCPI Command Quick Reference ........... 47 Chapter 4 Register Programming ....................49 Introduction......................... 49 Block Diagram Description ..................49 Module Control ....................49 ID EEPROM .......................
  • Page 6 Output Enable Register ..................61 Input Register ...................... 62 Interrupt Registers ....................62 Compare Enable Register ..................62 Compare Data Register ..................63 ID EEPROM Register ..................63 Appendix A Specifications ........................ 65 M-Module Specification Compliance................. 65 Agilent E2290A Specifications .................. 65 Contents...
  • Page 7 Contents...

  • Page 8: Edition 1 Rev 2

    Certification Agilent Technologies, Inc. certifies that this product met its published specifications at the time of shipment from the factory. Agilent Technologies further certifies that its calibration measurements are traceable to the United States National Institute of Standards and Technology (formerly National Bureau of Standards), to the extent allowed by that organization's calibration facility, and to the calibration facilities of other International Standards Organization members.

  • Page 9: Safety Symbols

    Agilent Technologies, Inc. assumes no liability for the customer's failure to comply with these requirements. Ground the equipment: For Safety Class 1 equipment (equipment having a protective earth terminal), an uninterruptible safety earth ground must be provided from the mains power source to the product input wiring terminals or supplied power cable.

  • Page 10: Declaration Of Conformity

    The product was tested in a typical configuration with Agilent Technologies test systems. September 5, 2000 Date Name Quality Manager Title For further information, please contact your local Agilent Technologies sales office, agent or distributor. Authorized EU-representative: Agilent Technologies Deutschland GmbH, Herrenberger Straβe 130, D 71034 Böblingen, Germany...

  • Page 11: User Notes

    Notes:...
  • Page 12 Notes:...
  • Page 13 Notes:...

  • Page 14: Chapter 1 Getting Started

    Agilent E2290A 16-Bit Digital I/O M-Module. The Agilent E2290A is intended to be installed on an M-Module Carrier. When it is necessary to reference a particular carrier, the Agilent E2251 C-Size VXIbus M-Module Carrier will be used.

  • Page 15: Output Circuitry

    Output Circuitry Figure 1-1 shows a simplified schematic of one bit’s output circuitry and two example applications. For the SCPI commands, sourcing a “1” means that the output is driven high (2.9 Vdc or greater, sourcing up to 20 mA); sourcing a “0”...

  • Page 16: Input Circuitry

    Input Circuitry Figure 1-2 shows a simplified schematic of one bit’s input circuitry and two example applications. Because the input bit has its own pull-up resistor, the bit can be used to detect switch closures to ground. Using external pull-ups, it can also be used with digital logic “high”...

  • Page 17: Wiring And Configuration

    Supplied Mating assemble the supplied connector and hood. Connector Note Do not use the supplied hood if the Agilent E2290A is installed in one of the two internal slots (M4 or M5) of the Agilent E2251A M-Module Carrier. 14 Getting Started...

  • Page 18: Agilent E2290A Digital I/O Wiring Information

    Chassis Bit 11 Bit 11 COM Chassis Bit 12 Bit 12 COM Bit 15 TTL Vref Bit 13 Bit 13 COM Bit 15 COM Bit 14 Bit 14 COM Figure 1-3. Agilent E2290A User Connector and I/O Schematic Getting Started...
  • Page 19 Figure 1-4. Assembling the Connector and Hood Note Do not use the supplied hood if the Agilent E2290A is installed in one of the two internal slots (M4 or M5) of the Agilent E2251A M-Module Carrier.

  • Page 20: Chapter 2 Scpi Programming

    Chapter 2 SCPI Programming General Information This chapter describes how to program the Agilent E2290A Digital I/O M-Module with the Standard Commands for Programmable Instruments (SCPI). Note Do not do register writes if you are controlling the module by a high level driver such as SCPI or VXIplug&play.
  • Page 21 /* Open the default resource manager */ errStatus = viOpenDefaultRM ( &viRM); if(VI_SUCCESS > errStatus){ printf(“ERROR: viOpenDefaultRM() returned 0x%x\n”,errStatus); return errStatus;} /* Open the M-Module instrument session */ errStatus = viOpen(viRM,INSTR_ADDR, VI_NULL,VI_NULL,&m_mod); if(VI_SUCCESS > errStatus){ printf(“ERROR: viOpen() returned 0x%x\n”,errStatus); return errStatus;} /* Reset the M-Module */ errStatus = viPrintf(m_mod, “*RST\n”);...

  • Page 22: Example 2: Source And Sense (Output And Input)

    Example 2: Source and Sense (Output and Input) The following example program resets an Agilent E2290A 16-Bit Digital I/O M-Module. It demonstrates how to source (output) and sense (input) data from the M-Module. With a simple loop-back fixture (connects Port 0 bit 0 to Port 1 bit 0, Port 0 bit 1 to Port 1 bit 1, Port 0 bit 2 to Port 1 bit 2, etc.), this program can be used as a simple operational verification test.
  • Page 23 /* Write a value to Port 1 */ errStatus = viPrintf(E2290,”SOUR:DIG:DATA1 0x55\n”); if (VI_SUCCESS > errStatus) { printf (“ERROR: viPrintf() returned 0x%x\n”,errStatus); return errStatus;} /* Read the value from Port 0 */ errStatus = viQueryf(E2290,”MEAS:DIG:DATA0?\n”,”%i”,value); if (VI_SUCCESS > errStatus) { printf (“ERROR: viPrintf() returned 0x%x\n”,errStatus);...

  • Page 24: Example 3: Pattern Match

    Example 3: Pattern Match You can set-up the Status Subsystem and have the Agilent E2290A Module interrupt (via SRQ) the system computer when a pattern match occurs. In general, you must enable bit 8 in the Status Operation Enable register; use command.
  • Page 25 /* Disable the event */ errStatus = viDisableEvent(E2290,VI_EVENT_SERVICE_REQ,VIQUEUE); if (VI_SUCCESS > errStatus){ printf("ERROR: viDisableEvent returned 0x%x\n",errStatus); return errStatus;} /* Clear the E2290A */ errStatus = viPrintf (E2290, "*CLS\n"); if (VI_SUCCESS > errStatus){ printf("ERROR: viPrintf() returned 0x%x\n",errStatus); return errStatus;} /* Close Sessions */ errStatus = viClose (E2290);...

  • Page 26: Scpi Command Reference

    SCPI Command Reference General Information This chapter describes the Standard Commands for Programmable Instruments (SCPI) command set for the the Agilent E2290A Digital I/O Module. For examples of programming the module with SCPI commands, refer to Chapter 2. Note Do not do register writes if you are controlling the module by a high level driver such as SCPI or the VXIplug&play.
  • Page 27 Abbreviated The command syntax shows most commands as a mixture of upper and lower case letters. The upper case letters indicate the abbreviated spelling for the command. Commands For shorter program lines, send the abbreviated form. For better program readability, you may send the entire command. The instrument will accept either the abbreviated form or the entire command.
  • Page 28 Linking Linking IEEE 488.2 Common Commands with SCPI Commands. Use a semicolon between the commands. For example: Commands *RST;DIG:DATA0 55 DIG:DATA0 55;*SAV 2 Linking Multiple SCPI Commands. Use both a semicolon and a colon between the commands. For example: DIG:DATA0 55;:DIG:DATA0? SCPI Command Reference...

  • Page 29: Diagnostic Subsystem

    DIAGnostic Subsystem The DIAGnostic SUbsystem provides a self test for the E2290A M-Module. Syntax DIAGnostic :INTerrupt[:LINE] <intr_line> :INTerrupt[:LINE]? :TEST? DIAGnostic:INTerrupt[:LINe] <intr_line> DIAGnostic:INTerrupt[:LINe] <intr_line> sets the VXIbus interrupt line the M-Module will use. The M-Module generates an interrupt after a channel closing or opening completes.

  • Page 30: Diagnostic:interrupt[:Line]

    DIAGnostic:INTerrupt[:LINe]? DIAGnostic:INTerrupt[:LINe]? returns the VXIbus interrupt line being used be the module. Returned Data Type Range Default int16 0 through 7 Note The VXIbus Interrupt Line is controlled by the VXIbus M-Module Carrier NOT by the M-Module. DIAGnostic:INTerrupt:LINE reprograms the Agilent E2251 M-Module Carrier.
  • Page 31 Returned Data Type Description of Numerical Response Possible Strings Returned int16, string 0 = self-test passsed “Self Test passed” 1 = ERROR: status register “init or full bit wrong. Expect X got X” 2 = ERROR: register readback “Readback reg X failed, expect 0 got X” 3: ERROR: interrupt “Interrupt failed VISA error X”...

  • Page 32: Display:monitor Subsystem

    1 if the monitor mode is on; or returns a 0 if the monitor mode is off. Example DISP:MON? 1.The display monitor is an RS-232 Terminal attached to an Agilent E1405B or E1406A/B Command Module and provides an interactive user interface to the Agilent E2290A. SCPI Command Reference...

  • Page 33: Input:debounce Subsystem

    INPut:DEBounce Subsystem The INPut:DEBounce Subsystem configures the input debounce circuitry The debounce circuitry allows the incoming data to be debounced for approximately 3mSec before being latched into the Input Register. You can enable/disable the debounce for the Input Register, however, debounce is always active for the pattern match interrupt.

  • Page 34: Measure Subsystem

    MEASure Subsystem The MEASure commands return data corresponding to the current value of the input signals. Syntax MEASure :DIGital:DATAn[:BYTE]:BITm? :DIGital:DATAn[:BYTE][:VALue]? :DIGital:DATA0:WORD:BITm? :DIGital:DATA0:WORD[:VALue]? Note With no load or signal applied to the input circuits, the commands will MEASure respond with a high on all bits due to the internal pull-ups. If you source a low command subsystem) and then perform a command the SOURce...

  • Page 35: Measure:digital:datan[:Byte][:Value]

    MEASure:DIGital:DATAn[:BYTE][:VALue]? Returns the current data for the specified 8-bit Port n as an unsigned integer between the values of 0 and 255 (00 - FF Parameters Parameter Name Parameter Type Range of Values Default DATAn Numeric 0 or 1 • Comments For any bit, a returned “0”...

  • Page 36: Sense Subsystem

    SENSe Subsystem The SENSe Subsystem allows matching of digital input patterns. An interrupt is generated when a pattern match occurs. Syntax SENSe [:EVENt][:PATTern] <pattern> [:EVENt][:PATTern]? [:EVENt][:PATTern]:ENABle <mask> [:EVENt][:PATTern]ENABle? SENSe[:EVENt][:PATTern] <pattern> Specifies the input bit pattern that will generate an interrupt. This command applies only to the complete input port (16-bit Word).

  • Page 37: Sense[:Event][:Pattern]:Enable

    SENSe[:EVENt][:PATTern]:ENABle? Returns the value of the Enable mask. Parameters None • Comments Returns an integer in the range -32768 to +32767 (0000 to FFFF 34 SCPI Command Reference...

  • Page 38: Source Subsystem

    SOURce Subsystem The SOURce Subsystem is used to output (source) digital data from the Agilent E2290A to external instrumentation or device-under-test.. Syntax [SOURce] :DIGital:DATAn[:BYTe]:BITm 0 | 1 :DIGital:DATAn[:BYTe]:BITm? :DIGital:DATAn[:BYTe][:VALue] <data> :DIGital:DATAn[:BYTe][:VALue]? :DIGital:DATA0:WORD:BITm 0 | 1 :DIGital:DATA0:WORD:BITm? :DIGital:DATA0:WORD[:VALue] <data> :DIGital:DATA0:WORD[:VALue]? :CONTrol[:ENABle]? [SOURce]:DIGital:DATAn[:BYTe]:BITm 0 | 1 Outputs a value on byte Port n (0 or 1) at bit position m (0 - 7).

  • Page 39: [Source]:Digital:datan[:Byte][:Value]

    [SOURce]:DIGital:DATAn[:BYTe][:VALue] <data> Outputs an 8-bit data byte to Port n (0 or 1). Note that you can do this on a bit-by-bit basis; for example, bits 0, 2, 3, and 5 on Port 0 may be sourcing (output), while bits 1, 4, 6, and 7 are sensing (input).

  • Page 40: [Source]:Digital:data0:Word:bitm

    [SOURce]:DIGital:DATA0:WORD:BITm? Returns value of bit m (0 - 15) from 16-bit word Port 0. This is a read-back function of the output register (not the actual state of the data lines) to verify the current output data. Parameters Parameter Name Parameter Type Range of Values Default...

  • Page 41: [Source]:Control[:Enable]

    [SOURce]:CONTrol[:ENABle]? Returns value of Output Enable Register, returns 16-bit value only. Parameters None • Comments The Output Enable Register indicates whether the Ports (0 and 1) are configured as output or input ports. The lower 8-bits represent Port 0, the upper 8-bits represent Port 1.

  • Page 42: Status Subsystem

    STATus Subsystem The STATus subsystem controls the SCPI-defined Operation and Questionable Status registers, Standard Event register, and the Status Byte register. Each is comprised of a condition register, an event register, an enable mask, and transition filters. Note Transition filters are always set for positive edge transitions. When an event occurs, the condition is set and the event register bit is set true.
  • Page 43 Figure 3-1. Agilent E2290A Status System Register Diagram 40 SCPI Command Reference...

  • Page 44: Status:operation:condition

    STATus:OPERation:CONDition? Returns the value of the Operation Status Condition Register as a signed 16 bit integer. Parameters None • Comments *RST clears all Status Operation Conditions. • *CLS does not affect the contents of the of the Status Operation Conditions. •...

  • Page 45: Status:operation:enable

    STATus:OPERation:ENABle? Returns the value of the OPERation Status Enable Register as a signed 16 bit integer. Parameters None • Comments The only defined bit is bit 8 which is the summary of the Data Available and Edge Status for Ports 0, 1, 2, and 3. See Figure 3-1. STATus:OPERation[:EVENt]? Returns the value of the OPERation Status Event Register as a signed 16 bit integer and then clears the register to 0.

  • Page 46: Status:questionable:condition

    STATus:QUEStionable:CONDition? Always returns a 0. Note The Questionable Status Condition, Event, and Enable registers exist for SCPI compliance only. No status bits are defined or reported in these registers. Parameters None • Comments No bits are defined. • *RST clears all Status Questionable Conditions. •...

  • Page 47: Status:questionable:enable

    STATus:QUEStionable:ENABle? Returns the value of the QUEStionable Status Enable Register as a signed 16 bit integer. Note The Questionable Status Condition, Event, and Enable registers exist for SCPI compliance only. No status bits are defined or reported in these registers. Parameters None •...

  • Page 48: System Subsystem

    SYSTem Subsystem The SYSTem Subsystem returns module-specific information. This information includes module type and description, and error messages. Syntax SYSTem :ERRor? :VERsion? SYSTem:ERRor? Queries the error register for the error value and string to identify the error. The errors are held in an error buffer and read on a First-In-First-Out basis. Parameters None •...

  • Page 49: Ieee 488.2 Common Commands

    The following table lists the IEEE 488.2 Common Commands listed by functional group that can be executed by the Agilent E2290A Digital Input / Output Module. However, commands are listed alphabetically in the reference. Example are shown in the reference when the com- mand has parameters or returns a non-trivial response;...

  • Page 50: Agilent E2290A Scpi Command Quick Reference

    Agilent E2290A SCPI Command Quick Reference Command System Description DIAGnostic:INTerrupt:LINE Specifies VXI Interrupt Line. DIAGnostic:INTerrupt:LINE? Queries VXI Interrupt Line. DIAGnostic:TEST? Performs an extended self test on the module. DISPlay:MONitor[:STATe]<state> Turns display mode on or off. DISPlay:MONitor[:STATe]? Returns value of Disp. Monitor State (0 or 1).
  • Page 51 48 SCPI Command Reference...

  • Page 52: Register Programming

    VXIplug&play driver, refer to the on-line help. Block Diagram Description In order to register program the Agilent E2290A, it is important to understand its operation at the block diagram level. Figure 4-1 shows a simplified block diagram of the module.

  • Page 53: Low Drive Circuit

    Module High (15:0) User SYSCLK Control Interface /RESET /DTACK /IRQ Low Drive Circuit Zener Diodes Data Out (Protection Circuit) Low (15:0) EEPROM Power Supply Ch. COM Conditioning Chassis Connection DCOM Figure 4-1. Agilent E2290A Simplified Block Diagram 50 Register Programming...

  • Page 54: Register Addressing In The Vxibus Environment

    Register Addressing in the VXIbus Environment Logical Address Each module in a VXIbus (VXI) system, whether VXI or M-Module, must have a unique logical address. The Agilent E2251 Carrier provides a logical address for each installed M-Module. Refer to the Agilent E2251 Installation and Getting Started Guide for details (if you are using a different carrier, refer to that carrier’s documentation for register-based addressing information).

  • Page 55: Determining A Module's A16 Base Address

    Determining a To access a register in A16 memory, you must specify a hexadecimal or decimal register address. This address consists of a base address plus a Module’s A16 Base register offset. The A16 base address depends on whether or not you are Address using an Agilent E1406 Command Module.

  • Page 56: Addressing A16 Registers

    Addressing As shown in Figure 4-2 on page 51, VXI registers for an M-Module are mapped into A16 address space. To access one of these registers, add the A16 Registers A16 base address to the register offset. For example, an M-Module’s VXI Status/Control Register has an offset of 04 .

  • Page 57: Program Example

    Program Example The following C language program demonstrates how to program at the register level. The program reads the ID, Device Type, Status, and A24 registers then sets bits 00 and 02 to a HI state. This program was written and tested in Microsoft Visual C++ but should compile under any standard ANSI C compiler.
  • Page 58 /* read and print the module’s Status Register */ errStatus = viIn16(m_mod,VI_A16_SPACE,0x04,&stat_reg); if (VI_SUCCESS > errStatus){ printf(“ERROR: viIn16() returned 0x%x\n”,errStatus); return errStatus;} printf(“Status register = 0x%hx\n”, stat_reg); /* read and print the module’s A24 Offset Register */ errStatus = viIn16(m_mod,VI_A16_SPACE,0x06,&a24_offset); if (VI_SUCCESS >...

  • Page 59: Registers In A16 Address Space

    Device Class: this field should always be 11 indicating a register-based device. • Address Space: 00 indicating A16/A24 device • Manufacturer ID: 4095 (decimal) for Agilent Technologies M-Modules VXI Device Type The Device Type Register is a read only register at address 02 (MSB) and (LSB).

  • Page 60: Vxi Status/Control Register

    VXI Status/Control The Status/Control Register is a read/write register (address 04 and 05 that controls the module and indicates its status. Register b+04 Write Reserved Sysfail Reset (Control) Enable Inhibit Read MODID* M-Module Device Dependent Ready Passed Device Dependent (Status) Active •...

  • Page 61: Interrupt Selection Register

    Interrupt Selection The Interrupt Selection Register (base + 20 ) specifies which VXI interrupt line the M-Module will use. M-Modules may generate interrupts to indicate Register that a SCPI command has completed. These interrupts are sent to and acknowledged by the Agilent Command Module or other system controller via one of seven VXI backplane interrupt lines.
  • Page 62 Type B Interrupts The interrupting M-Module removes the interrupt request via a hardware method (on IACK* going low) but provides no vector information for the interrupt. This is the same as Type C interrupts except that no vector is supplied and DTACK* is not asserted. Type C Interrupts The interrupting M-Module removes the interrupt request via a hardware method and provides an interrupt vector on the data bus and DTACK* is...

  • Page 63: Registers In A24 Address Space

    Registers in A24 Address Space Table 4-2 shows the register definitions for the Agilent E2290A. Table 4-2. Agilent E2290A Registers Word Address Register Type (Offset from A24 Base) Register Name Status Register Read Only Control Register Read/Write - 0E Reserved...

  • Page 64: Output Register

    Bit Definitions Reset -- Writing a logic “1” to this bit initiates a soft reset. Writing a logic “0” to this bit terminates soft reset. Interrupt Enable -- Writing a logic “1” to this bit enables the M-Module to interrupt upon a pattern match (see "Interrupt Registers" on page 62). Writing a logic “0”...

  • Page 65: Input Register

    Input Register This register acts as a latch for data being input to the M-Module from the device under test. b+14 Write Reserved Read Reset Condition -- Bits 15 - 00 = logic “0” Bit Definitions D00 - D15 -- These are the 16 data input bits corresponding to the data input lines D00 - D15.

  • Page 66: Compare Data Register

    Compare Data This register is where you store a data pattern for interrupt pattern matching. Register b+18 Write Read Reset Condition -- Bits 15 - 00 = logic “0” Bit Definitions D00 - D15 -- These bits contain the pattern to be matched in interrupt pattern comparison.
  • Page 67 0868 Characteristics 4 - 7 Reserved 0000 8 - 15 Module Dependent 0000 VXI Sync Code ACBA VXI ID CFFF (Agilent Technologies) VXI Device Type F260 19 - 31 Reserved 0000 32 - 63 Module Dependent 0000 64 Register Programming...

  • Page 68: Appendix A Specifications

    IDENT capability Agilent E2290A Specifications Carrier Interface The Agilent E2290A incorporates the standard 40-pin, 20x2 row connector interface to the carrier board for power and data/control, but does not have Specifications the 24-pin optional connector for carrying user-connections back onto the carrier board.
  • Page 69 66 Specifications...
  • Page 70 Index Agilent E2290A 16-Bit Digital I/O Symbols Command , 24 abbreviated , 46 *CLS , 46 common , 46 *ESE , 24 implied , 46 *ESE? , 25 , 46 linking *ESR? , 46 *IDN? , 24 parameter , 46...
  • Page 71 , 12 Output Circuitry , 61 Output Enable Register , 11 Handshaking , 61 Output Register , 49 High Drive Circuit , 24 Parameters, command , 49 ID EEPROM , 21 Pattern Match , 56 ID Register , 50 Power Supply , 46 *IDN? , 17, 19, 21...
  • Page 72 , 60 Status Register , 39 STATus Subsystem , 57 Status/Control Register , 42 STATus:OPERation:ENABle? , 42 STATus:OPERation:EVENt? , 42 STATus:PRESet , 43 STATus:QUEStionable:CONDition? , 43 STATus:QUEStionable:ENABle , 44 STATus:QUEStionable:ENABle? , 44 STATus:QUEStionable:EVENt? , 46 *STB? , 45 SYSTem Subsystem , 45 SYSTem:ERRor? , 45...
  • Page 73 Index...

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