8 general purpose input/output, 8144_get_gpio_input, General purpose input/output – ADLINK PCI-8144 User Manual
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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