Arbor Technology Rigid-772, User Manual

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Appendix
A: Digital I/O Setting
Digital I/O can read from or write to a line or an entire digital port, which is a
collection of lines. This mechanism helps users achieve various applications
such as industrial automation, customized circuit, and laboratory testing. Take
the source code below that is written in C for the digital I/O application example.
Sample Codes:
/*----- Include Header Area -----*/
#include “math.h”
#include “stdio.h”
#include “dos.h”
int SMB_PORT_AD = 0xF040;
int SMB_DEVICE_ADD = 0x6e; /* 75111R’s
Add=6eh */
/*----- routing, sub-routing -----*/
void main()
{
DIO_Set(0xFFFF,0xFFFF);
delay(2000);
DIO_Set(0xFFFF,0x0000);
delay(2000);
DIO_Set(0xFFFF,0x5555);
delay(2000);
DIO_Set(0xFFFF,0xAAAA);
delay(2000);
}
unsigned int DIO_Set(unsigned int oMode, unsigned int oData)
{
unsigned int iData;
unsigned int iTemp;
/* GPIO10~17 control */
SMB_Byte_WRITE(SMB_PORT_AD,SMB_DEVICE_ADD,0x10,oMode & 0x00FF);
delay(10);
/* GPIO20~27 control */
SMB_Byte_WRITE(SMB_PORT_AD,SMB_DEVICE_ADD,0x20,(oMode & 0xFF00)
>> 8 );
delay(10);
/* GPIO10~17 Data */
SMB_Byte_WRITE(SMB_PORT_AD,SMB_DEVICE_ADD,0x11,oData & 0x00FF);