ADLINK ACL-8112 Series - Manual (Page 65)

C Language Library
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7.3 _8112_DI
Description
This function is used to read data from the digital input port. There are
16 bits available for the digital inputs. Bit 0 to bit 7 of the register is
defined as the low byte and bit 8 to bit 15 are defined as the high byte.
Syntax
int _8112_DI( int port_number, unsigned char *data )
int _8112pg_DI( int port_number, unsigned char *data )
Argument:
port_number: To indicate which port is read,
DI_LO_BYTE
or DI_HI_BYTE.
DI_LO_BYTE: bit 0 ~ bit 7,
DI_HI_BYTE: bit8 ~ bit15
data: return value from digital port.
Return Code:
ERR_NoError
ERR_BoardNoInit
ERR_PortError
Example:
See Demo program . Demo Program 'DI_DEMO.C'