ADLINK PCI-8144 - Manual (Page 151)

Function Library 141
6.8 General purpose input/output
_8144_get_gpio_input
Get all DIN digital input signals
Description:
PCI-8144 has 8 digital input channels. By this function, the user
can get the digital input status.
Syntax:
I16 _8144_get_gpio_input( I16 CardId, I16
*DiStatusInBit )
B_8144_get_gpio_input( ByVal CardId As Integer,
DiStatusInBit As Integer )As Integer
Parameters:
I16 CardId : Specify the PCI-8144 card index. The CardId
could be decided by DIP switch (SW1) or depend on slot
sequence.Please refer to _8144_initial()
I16 *DiStatusInBit : Digital input status, Bit0-7: Digital
Input CH0-7.
Z Meaning of each bit: 1:ON , 0:OFF
Return Values:
ERR_ParametersInvalid
ERR_DeviceNotInitial
ERR_NoError
Example:
I16 CardId = 0;
I16 DiStatusInBit;
ret = _8144_get_gpio_input( CardId,
&DiStatusInBit );
if( ret == ERR_NoError) // compar DiStatusInBit…
See also:
_8144_get_gpio_input_channel