請先看『使用說明』

From LEXWiKi

Introduction

Define Pin Address

   #define WDT_ENABLE 0x600
   #define WDT_DISABLE 0x604
   #define DO 0x60C
   #define DI 0x608

Set the I/O privilege level

   iopl( 3 ); //iopl() changes the I/O privilege level of the current process , level 3 can read/write to i/o port

Set DO

   DO:  
       outb( 1 , DO );  //write data:1 to DO

Read DI/DO

   DO: inb ( DO );  //read DO data
   DI: inb ( DI );  //read DI data

Enable/Disable WDT

   Enable : outb ( 1 , WDT_ENABLE );  //set 1 sec to WDT enable port, system will reboot after 1 second 
   Disable: outb ( 1 , WDT_DISABLE );  //set 1 sec to WDT disable port , the disable signal will break off WDT enable signle

The Sample code source you can download from

852_dio_wdt_v2.1L_Src.tar.gz

852_dio_wdt_v2.1L_Bin.tar.gz

How to use this Demo Application

1. Press the "Start" button to test DIO function

2. Press the "Enable" button to test WDT function

3. Press the "Disable" button when WDT enable to disable WDT