6 _7250_do, _7252_do, Description, Syntax – ADLINK cPCI-7252 User Manual

Page 44: Arguments, 7250_do, _7252_do, Description @ syntax @ arguments

C/C++ Libraries

5.6 _7250_DO, _7252_DO

@ Description

This function is used to write data to the digital output port. This
energizes or de-energizes the RELAY. There are 8 digital outputs
on the PCI-7250 or PCI-7251 extended board. You can control all
32 RELAY’s through using the _7250_DO function.

@ Syntax

C/C++ (DOS)

U16 _7250_DO (U16 cardNo, U16 doPortNo, U16

doData)

U16 _7252_DO (U16 cardNo, U16 doData)

C/C++ (Windows 95)

U16 W_7250_DO (U16 cardNo, U16 doPortNo, U16

doData)

U16 W_7252_DO (U16 cardNo, U16 doData)

Visual Basic (Windows 95)

W_7250_DO (ByVal cardNo As Integer, ByVal

doPortNo As Integer, ByVal doData As
Integer) As Integer

W_7252_DO (ByVal cardNo As Integer, ByVal doData

As Integer) As Integer

@ Arguments

cardNo: card number selected

doChannelNo: Digital Output Channel No, the constant is:.

Note: This argument is not necessary for cPCI-7252

doData: value will be written to digital output port

DI_PORT0 0x00

Access the 8 Digital Input of PCI-7250

DI_PORT1 0x01 Access the 8 Digital Input of Expansion Board PCI-7251#1
DI_PORT2 0x02 Access the 8 Digital Input of Expansion Board PCI-7251#2
DI_PORT3 0x03 Access the 8 Digital Input of Expansion Board PCI-7251#3