gpio windows demo file.

2780gpio.c

/* W83627UHG GPIO DEMO PROGRAM File Name : 2780GPIO.C
*/
#include <stdio.h>
#include <conio.h>  
#include <dos.h>
#define Superio2_Addr 0x2E 

/* #define DEBUG 1 */
void enter_Superio2_CFG(void) {
  outportb(Superio2_Addr, 0x87);
  outportb(Superio2_Addr, 0x87);
}

void exit_Superio2_CFG(void) {
  outportb(Superio2_Addr, 0xAA);
}

void Set_CFG2(unsigned char Addr2,unsigned char Value2) {
  unsigned char d2;
  outportb(Superio2_Addr, Addr2);
  delay(2);
  outportb(Superio2_Addr +1, Value2);
#ifdef DEBUG
  d2 = inportb(Superio2_Addr+1);
  printf("\nWrite %x to CR%x, read back is:%x",Value2,Addr2,d2);
#endif /*DEBUG*/
  delay(2);
}

unsigned char Get_CFG2(unsigned char Addr2) {
  unsigned char d2; outportb(Superio2_Addr, Addr2);
  delay(2);
  d2 = inportb(Superio2_Addr+1);
#ifdef DEBUG
  printf("\nGet data %x from CR%x",d2,Addr2);
#endif /*DEBUG*/ delay(2);
  return(d2);
}

int main(void) {
  unsigned char d2; printf("\n------------------------------------------------------------------------");
  printf("\n- PEB-2771/2781 GPIO TEST Program R1.0 -"); printf("\n------------------------------------------------------------------------");
  printf("\n Please short the following pins with 2.00mm-pitched jumper on J13"); printf("\n P.S: SIO: W83627UHG, Winbond");
  printf("\n GP50(J13 PIN 1)----GP57(J13 PIN 2)");
  printf("\n GP51(J13 PIN 3)----GP56(J13 PIN 4)");
  printf("\n GP52(J13 PIN 5)----GP55(J13 PIN 6)");
  printf("\n GP53(J13 PIN 7)----GP54(J13 PIN 8)");
  printf("\n GND (J13 PIN10)****VCC (J13 PIN 9)");
  printf("\n\n Starting...");

  enter_Superio2_CFG();
  /* CR2A B7 = 1 selet GPIO Port 1*/
  d2 = Get_CFG2(0x2A);
  d2 = (d2 & 0x7F) | 0x80;
  Set_CFG2(0x2A, d2);
  /* IO test loop 1 */
  /* Set GPIO Port 5 Enable */
  Set_CFG2(0x07, 0x08); /* Select logic device 08*/ Set_CFG2(0x30, 0x02); /* Enable GPIO Port 5 */
  // 87 87
  //-------------------------------------------------------------------------------------------------------- // GPIO50->57
  // GPIO51->56
  // GPIO52->55
  // GPIO53->54 //--------------------------------------------------------------------------------------------------------
  /* Set GPIO Port 5 of Superio2 Enable */
  Set_CFG2(0x07, 0x08);
  Set_CFG2(0xE0, 0xF0);
  Set_CFG2(0xE2, 0x00);
  delay(2);
  Set_CFG2(0x07, 0x08);
  Set_CFG2(0xE1, 0x0F);
  delay(100);
  Set_CFG2(0x07, 0x08);
  d2 = Get_CFG2(0xE1);
  //printf("\n%x",d2);
  if ((d2&0xFF) == 0x0F ){
  /* Select logic device 08*/
  /* GPIO Port 5 is [11110000], 0: output, 1:input */ /* GPIO Port 5 is non-inversed*/
  /* Select logic device 08*/
  /* GP50~53 of Superio2 -> GP57~54 of Superio2 */
  /* Select logic device 08*/ /* get GPIO Port 6 data */
    printf("\n GPIO[50,51,52,53]->[57,56,55,54] test ok!");
  }else{
    printf("\n GPIO[50,51,52,53]->[57,56,55,54] test fail!");
  }
  return(0);
}