C/C++ Library for DOS
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5.4 _8111_DI
@ Description
This function is used to read data from digital input port. There are 16-bit
digital inputs on the ACL-8111. The bit 0 to bit 7 are defined as
low byte
and the bit 8 to bit 15 are defined as the
high byte
.
@ Syntax
int _8111_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'
