Computer Hardware User Manual

C/C++ Libraries
37
5.7 Configuration Channel
@ Description
This function is used to configure the Input or Output of each Channel. Each
I/O Port of PCIDIO 24H/48H/96H is either input or output, so it has to
configure as input or output before I/O operations are applied.
@ Syntax
C/C++ (DOS)
U16 _DIO48H_Config_Channel (U16 cardNo, U16
channelNo, U16 ctrlValue)
U16 _DIO96H_Config_ Channel (U16 cardNo, U16
channelNo, U16 ctrlValue)
C/C++ (Windows 95)
U16 W_DIO48H_Config_Channel (U16 cardNo, U16
channelNo, U16 ctrlValue)
U16 W_DIO96H_Config_ Channel (U16 cardNo, U16
channelNo, U16 ctrlValue)
Visual Basic (Windows 95)
W_DIO48H_Config_Channel (ByVal cardNo As Integer,
ByVal channelNo As Integer, ByVal ctrlValue
As Integer) As Integer
W_DIO96H_Config_ Channel (ByVal cardNo As Integer,
ByVal channelNo As Integer, ByVal ctrlValue
As Integer) As Integer
@ Argument
cardNo: card number to select board
channelNo: PCI_CH0, PCI_CH1, PCI_CH2, or PCI_CH3
ctrlValue: the control value to set up PA, PB, and PC
as input or output port.