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C/C++ DOS Libraries

5.8 _7256_INT_Control

@ Description

This function is used to control the interrupt source of PCI-7256. For more

details about interrupt sources, refer to section 3.7

@ Syntax

U16 _7256_INT_Control (U16 boardID, U16 COS_Enable, U16

CH0_Enable, U16 CH1_Enable)

@ Argument

boardID :

Board ID to the specific borad.

COS_Enable:

COS interrupt function enable/disable.

CH0_Enable:

Digital input channel 0 interrupt

enable/disable.

CH1_Enable:

Digital input channel 1 interrupt

enable/disable.

The possible combinations of interrupt source are shown

in the following table.

CH1_Enable CH0_Enable COS_Enable IRQ source IRQ trigger condition

0 0 0 Interrupt disable --

0 0 1 COS interrupt

Change of state in the

enabled channel

0 1 0 Ch.0 interrupt enable

Rising edge of DI

channel 0

1 0 0 Ch.1 interrupt enable

Rising edge of DI

channel 1

1 1 0

Ch.0 & 1 interrupt

enable

Rising edge of DI

channel 0 & 1

0 1

1 0

1 1

Not allowed

(disable)

---

@ Return Code

ERR_NoError, ERR_BoardNoInit, ERR_INTNotSet

1 2 ... 37 38 39 40 41 42 43 44 45 46 47 48

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