Omega OME-A822PG manual 7 JP7 DMA Dack Selection JP8 DMA DRQ Selection, DRQ JP7 Dack JP8 DMA

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2.3.7JP7 : DMA DACK Selection,

JP8 : DMA DRQ Selection

NO DMA

1

5

DRQ

2	1
6	5

JP7

DACK

2

6 JP8

DMA 1 (default)

	DRQ
1	2	1
5	6	5
	JP7

DACK

JP8

2

6

DMA 3

DRQ

1

5

JP7

DACK

2 1

65

JP8

2

6

The DMA channel can not shared. The OME-A-822 software driver can support 8 different boards in one PC based system, but only two of these boards can use the DMA transfer function.

OME-A-822PGL/PGH Hardware Manual ---- 15

Image 17

Contents User’sGuide Mexico CanadaBenelux Czech RepublicOME-A-822PGH/PGL Introduction Tables of ContentsConnector General Description FeaturesPower Consumption SpecificationsAnalog Inputs 3 A/D ConverterInterrupt Channel DA ConverterDigital I/O Direct Memory Access Channel DMA Programmable Timer/CounterProduct Check List ApplicationsBoard Layout Hardware ConfigurationDefault base address is I/O Base Address Setting1 JP1 D/A Internal Reference Voltage Selection Jumper Settings3 JP3 Single-ended/Differential Selection 2 JP2 D/A Int/Ext Ref Voltage Selection5 JP5 Interrupt Level Selection 4 JP4 A/D Trigger Source Selection6 JP6 User Timer/Counter Clock Input Selection DRQ JP7 Dack JP8 DMA 7 JP7 DMA Dack Selection JP8 DMA DRQ SelectionAddress Read Write I/O Register AddressConversion is completed, the Ready bit will clear to zero 1 8254 Counter2 A/D Input Buffer Register 3 D/A Output Latch Register Clear Interrupt Request 4 D/I Input Buffer RegisterGAIN3 GAIN2 GAIN1 GAIN0 6 A/D Gain Control Register7 A/D Multiplex Control Register OME-A-822PGH Gain Control Code Table8 A/D Mode Control Register 9 A/D Software Trigger Control Register 10 D/O Output Latch Register CN2 Digital I/OCounter 8254 Timer/CounterA/D Conversion Polling, interrupt and DMA 1 A/D conversion flow3 A/D Transfer Modes 2 A/D Conversion Trigger ModesRefer to Sec Using software trigger and polling transferDelay the settling time refer to Sec .4.6 and Sec D/A Conversion Analog Input Signal Connection OME-A-822PGL/PGH Hardware Manual OME-A-822PGL/PGH Hardware Manual Use a single connection to frame ground not A.GND or D.GND Signal ShieldingUsing OME-DB-8225 CJC Output CN2 Digital Output Pin Assignment CN1/CN2/CN3 Pin AssignmentCN1 Digital Input Pin Assignment SINGLE-ENDED Signal Mode Differential Signals OME-DB-8225 Daughter BoardOME-DB-37 OME-DB-16PDescription of Variable Resistors CalibrationD/A Calibration A/D Calibration Introduction Diagnostic UtilityOME-A-822PGL/PGH Hardware Manual Running The Diagnostic Utility Base address selection screen SetupDMA no and IRQ no selection screen Calibration Function Test Test Test Screen Digital I/O Test Screen Multiplexer Test Screen Use IRQ Test Screen Use DMA Test Screen DA Gain Test Screen Timer 0 Test Screen Special Test Help WARRANTY/DISCLAIMER Temperature