Formosa Industrial Computing MBM-530NS, User Manual

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MBM-530NS User’s Manual -37-
TTL Output Demo Program
#include <stdio.h>
#include <stdlib.h>
#include <dos.h>
#define GPIO37 0x80 //GPIO37
unsigned Index_Reg = 0x002E, Data_Reg = 0x002F;
unsigned char Dev_Index = 0x07, GPIO_Num = 0x07, PM_Num = 0x08;
unsigned char tmpData;
void main(void) {
unsigned char
mBAR,lBAR,PM_Index_Reg,PM_Data_Reg,GPIO_En,port_Select,CFGDAT;
unsigned PMBAR,GPIOBAR;
outportb(Index_Reg, Dev_Index); //Choose Logical Dev. PM
outportb(Data_Reg, PM_Num); //
outportb(Index_Reg, 0x30); //Enable PM register access
outportb(Data_Reg, 0x01); //