Omega ISA- BUS MULTI-FUNCTIONAL BOARD OME-A822PG Manuel utilisateur
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User’s Guide
OME-A822PG
ISA-Bus Multi-Functional Board
Hardware Manual
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It is the policy of OMEGA to comply with all worldwide safety and EMC/EMI regulations that
apply. OMEGA is constantly pursuing certification of its products to the European New Approach
Directives. OMEGA will add the CE mark to every appropriate device upon certification.
The information contained in this document is believed to be correct, but OMEGA Engineering, Inc. accepts
no liability for any errors it contains, and reserves the right to alter specifications without notice.
WARNING: These products are not designed for use in, and should not be used for, patient-connected applications.
OME-A-822PGH/PGL
Enhanced Multi-Function Card
Hardware Manual
OME-A-822PGL/PGH Hardware Manual ---- 1
Tables of Contents
1. Introduction_________________________________________________________ 4
1.1 General Description __________________________________________________ 4
1.2 Features _____________________________________________________________ 4
1.3 Specifications _________________________________________________________ 5
1.3.1 Power Consumption : ________________________________________________________ 5
1.3.2 Analog Inputs ______________________________________________________________ 5
1.3.3 A/D Converter _____________________________________________________________ 5
1.3.4 DA Converter ______________________________________________________________ 6
1.3.5 Digital I/O_________________________________________________________________ 6
1.3.6 Interrupt Channel ___________________________________________________________ 6
1.3.7 Programmable Timer/Counter _________________________________________________ 7
1.3.8 Direct Memory Access Channel (DMA) _________________________________________ 7
1.4 Applications __________________________________________________________ 8
1.5 Product Check List ____________________________________________________ 8
2. Hardware Configuration ______________________________________________ 9
2.1 Board Layout_________________________________________________________ 9
2.2 I/O Base Address Setting ______________________________________________ 10
2.3 Jumper Settings______________________________________________________ 11
2.3.1 JP1 : D/A Internal Reference Voltage Selection___________________________________ 11
2.3.2 JP2 : D/A Int/Ext Ref Voltage Selection ________________________________________ 12
2.3.3 JP3 : Single-ended/Differential Selection________________________________________ 12
2.3.4 JP4 : A/D Trigger Source Selection ____________________________________________ 13
2.3.5 JP5 : Interrupt Level Selection ________________________________________________ 13
2.3.6 JP6 : User Timer/Counter Clock Input Selection __________________________________ 14
2.3.7 JP7 : DMA DACK Selection, JP8 : DMA DRQ Selection _____________________ 15
2.4 I/O Register Address__________________________________________________ 16
2.4.1 8254 Counter _____________________________________________________________ 17
2.4.2 A/D Input Buffer Register ___________________________________________________ 17
2.4.3 D/A Output Latch Register___________________________________________________ 18
2.4.4 D/I Input Buffer Register ____________________________________________________ 19
2.4.5 Clear Interrupt Request______________________________________________________ 19
2.4.6 A/D Gain Control Register ___________________________________________________ 20
2.4.7 A/D Multiplex Control Register _______________________________________________ 21
2.4.8 A/D Mode Control Register __________________________________________________ 22
OME-A-822PGL/PGH Hardware Manual ---- 2
2.4.9 A/D Software Trigger Control Register _________________________________________ 23
2.4.10 D/O Output Latch Register __________________________________________________ 24
2.5 Digital I/O __________________________________________________________ 25
2.6 8254 Timer/Counter __________________________________________________ 26
2.7 A/D Conversion ______________________________________________________ 27
2.7.1 A/D conversion flow________________________________________________________ 28
2.7.2 A/D Conversion Trigger Modes _______________________________________________ 29
2.7.3 A/D Transfer Modes ________________________________________________________ 29
2.7.4 Using software trigger and polling transfer ______________________________________ 30
2.8 D/A Conversion ______________________________________________________ 31
2.9 Analog Input Signal Connection _________________________________________ 32
2.10 Using OME-DB-8225 CJC Output ______________________________________ 36
3. Connector _________________________________________________________ 37
3.1 CN1/CN2/CN3 Pin Assignment _________________________________________ 37
3.2 Daughter Board________________________________________________________ 40
3.2.1 OME-DB-8225 ____________________________________________________________ 40
3.2.2 OME-DB-37 ______________________________________________________________ 40
3.2.3 OME-DB-16P_____________________________________________________________ 40
3.2.4 OME-DB-16R_____________________________________________________________ 40
4. Calibration___________________________________________________________ 41
4.1 Description of Variable Resistors ________________________________________ 41
4.2 D/A Calibration ______________________________________________________ 42
4.3 A/D Calibration ______________________________________________________ 43
5. Diagnostic Utility____________________________________________________ 44
5.1 Introduction_________________________________________________________ 44
5.2 Running The Diagnostic Utility _________________________________________ 46
5.2.1 Setup ____________________________________________________________________ 47
5.2.2 CALIBRATION ___________________________________________________________ 49
5.2.3 FUNCTION TEST _________________________________________________________ 50
5.2.4 SPECIAL TEST ___________________________________________________________ 58
5.2.5 Help ____________________________________________________________________ 59
OME-A-822PGL/PGH Hardware Manual ---- 3
1. Introduction
1.1 General Description
The OME-A-822PGL/PGH is a high performance, multifunction analog, digital I/O
board for PC AT compatible computers. The OME-A-822PGL provides low gain (0.5,1, 2, 4,
8). The OME-A-822PGH provides high gain (0.5,1,5,10,50,100,500,1000). The
OME-A-822PGL/PGH contains a 12-bit ADC with up to 16 single-ended or 8 differential
analog inputs. The maximum sample rate of the A/D converter is 100Ksample/sec. There are
two 12-bit DACs with voltage output, 16 channels of TTL-compatible digital input, 16
channels of TTL-compatible digital output and one 16-bit counter/timer channel for timing
input and output.
The following A/D performance bench marks were achieved on a 33MHz 486
computer:
zPolling mode : about 100Ksample/sec (with single-task OS)
zInterrupt mode : about 60Ksample/sec (with single-task OS)
zDMA mode : about 100Ksample/sec (with single-task OS)
1.2 Features
zThe maximum sample rate of the A/D converter is 100 K samples/sec
zSoftware selectable input ranges
zPC AT compatible ISA bus
zA/D trigger mode : software trigger , pacer trigger, external trigger
z16 single-ended or 8 differential analog input signals
zProgrammable high gain : 0.5,1,5,10,50,100,500,1000 (OME-A-822PGH)
zProgrammable low gain : 0.5,1,2,4,8 (OME-A-822PGL)
z2 channel 12-bit D/A voltage output
z16 digital input /16 digital output (TTL compatible)
zInterrupt handling
zBipolar/Unipolar operation
z1 channel general purpose programmable 16 bit timer/counter
OME-A-822PGL/PGH Hardware Manual ---- 4
1.3 Specifications
1.3.1 Power Consumption :
z+5V @960 mAmaximum, OME-A-822PGL/PGH
zOperating temperature : -20°C to 60°C
1.3.2 Analog Inputs
zChannels : 16 single-ended or 8 differential
zInput range : (software programmable)
OME-A-822PGL:bipolar : ±10V,±5V, ±2.5V, ±1.25V, ±0.0625V
unipolar : 0 to 10V, 0 to 5V, 0 to 0.2.5V, 0 to 1.25.V
OME-A-822PGH:bipolar : ±10,±5V,±1V, ±0.5V, ±0.1V, ±0.05V, ±0.01V, ±0.005V
unipolar : 0 to 10V, 0 to 1V, 0 to 0.1V, 0 to 0.01V
zInput current : 250 nA max (125 nA typical ) at 25 deg. C
zOn chip sample and hold
zOver voltage : continuous single channel to 70Vp-p
zInput impedance : 10 Ω// 6pF
Caution: refer to
Sec. 2.9 first
10
1.3.3 A/D Converter
zType : successive approximation , Burr Brown ADS 774 or SIPEX-SP774B
( equivalent)
zConversion time : 8 microsec.
zAccuracy : +/- 1 bit
zResolution : 12 bits
OME-A-822PGL/PGH Hardware Manual ---- 5
1.3.4 DA Converter
zChannels : 2 independent
ztype : 12 bit multiplying , Analog device AD-7541
zLinearity : +/- 1/2 bit
zOutput range : 0 to 5V or 0 to 10V jumper selected , may be used with other
AC or DC reference input. Maximum output limit +/- 10V
zOutput drive : +/- 5mA
zsettling time : 0.6 microseconds to 0.01% for full scale step
1.3.5 Digital I/O
zOutput port : 16 bits, TTL compatible
Output Low: VOL=05.Vmax @IOL = 8 mA max
Output High: VOH = 2.7Vmin @IOH = -400µA max
zInput port : 16 bits, TTL compatible
Input Low: VIL=0.8V max; IIL = -0.4mA max
Input High: VIH=2.0V min; IIL = 20µA max
1.3.6 Interrupt Channel
zLevel : 3,4,5,6,7,10,11,12,14,15, jumper selectable
zEnable : Via control register
OME-A-822PGL/PGH Hardware Manual ---- 6
1.3.7 Programmable Timer/Counter
zType : 82C54 -8 programmable timer/counter
zCounters : Counter1 and counter2 are cascaded as a 32 bit pacer timer.
Counter0 is a user available timer/counter. The software driver also uses
counter0 to implement a machine independent timer.
zClock input frequency : DC to 10 MHz
zPacer output : 0.00047Hz to 0.5MHz
zInput ,gate : TTL compatible
zInternal Clock : 2 MHz
1.3.8 Direct Memory Access Channel (DMA)
zLevel : CH1 or CH3, jumper selectable
zEnable : via DMA bit of control register
zTermination : by interrupt on T/C
zTransfer rate : 100K conversions/sec.
OME-A-822PGL/PGH Hardware Manual ---- 7
1.4 Applications
zSignal analysis
zFFT & frequency analysis
zTransient analysis
zProduction testing
zProcess control
zVibration analysis
zEnergy management
zIndustrial and laboratory. measurement and control
1.5 Product Check List
The OME-A-8322PGL/PGH includes the following items:
zOME-A-822PGL/PGH multifunction card
zOME-A-822PGL/PGH CD ROM
Attention !
If any of these items are missing or damaged, please contact our
customer service department. Save the shipping materials and carton
in case you want to ship or store the product in the future.
OME-A-822PGL/PGH Hardware Manual ---- 8
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