ADLINK ACL-8111 - Manual (Page 45)

C/C++ Library for DOS • 39
5.6 _8111_DO
@ Description
This function is used to write data to digital output ports. There are 16
digital outputs on the ACL-8111, they are divided by two ports,
DO_LO_BYTE and DO_HI_BYTE. The channel 0 to channel 7 are defined
in DO_LO_BYTE port and the channel 8 to channel 15 are defined as the
DO_HI_BYTE port.
@ Syntax
int _8111_DO(int port_number, unsigned char data )
@ Argument:
port_number: DO_LO_BYTE or DO_HI_BYTE
data:
value will be written to digital output port
@ Return Code:
ERR_NoError
ERR_BoardNoInit
ERR_PortError
@ Example:
#include “aclerr.h”
#include “8111.h”
main()
{
_8111_Initial( CARD_1, 0x220 );
/* Assume NoError when Initialize ACL-8111
card */
.
.
_8111_DO( DO_LO_BYTE , 0x55 );
printf( "The low byte is now 0x55.\n" );
_8111_DO( DO_HI_BYTE , 0xAA );
printf( "The high byte is now 0xAA.\n" );
}
A more detailed program is Provided in this software 'DO_DEMO.C'