Omega-engineering OME-A826PG Manual de usuario descargar pdf (Pagina 46)

OME-A-826PG Software Manual [Win 95/98/NT]

3.5 AD, Interrupt functions

3.5.1 A826_InstallIrq

z Description:

This subroutine will install interrupt handler for a specific IRQ level n.

z Syntax:

WORD A826_InstallIrq(WORD wBase, WORD wIrq,

HANDLE *hEvent, DWORD dwCount );

z Parameter:

wBase : [Input] The I/O port base address for A826 card.

wIrq : [Input] The IRQ level .

hEvent : [Input] The handle of event object that created by user.

dwCount : [Input] The desired A/D entries count for interrupt transfer.

z Return Value:

NoError : successful

InstallIrqError: fail in install IRQ handler.

3.5.2 A826_AD_INT_Start

z Description:

This subroutine will start the interrupt transfer for a specific A/D channel

and programming the gain code and sampling rate..

z Syntax:

WORD A826_AD_INT_Start(WORD Ch, WORD Gain, WORD c1, Word c2 )

z Parameter:

Ch : [Input] the A/D channel.

Gain : [Input] the Gain

c1,c2 : [Input] the sampling rate is 2M/(c1*c2)

z Return Value:

NoError : successful

INTStartError : fail

Date: Aug-15-2000 Ver: 2.2 Page 44

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Omega-engineering OME-A826PG Manual de usuario Pagina 46