Acrosser AR-B8172 - Manual (Page 30)

AR-B8172 User Manual
#include <dos.h>
//===========================================================================
// Normal procedure
//===========================================================================
void Show_Help();
//===========================================================================
// Main procedure
//===========================================================================
int main(int argc, char *argv[])
{
unsigned char IO_Port_Address=0x22; // Index Port 22h, Date Port 23h
unsigned char Signal;
unsigned char Time;
unsigned long Timer;
unsigned char Counter0;
unsigned char Counter1;
unsigned char Counter2;
int Temp;
if ( argc != 3 )
{ Show_Help(); return 1; }
clrscr();
Signal=atoi(argv[1]); // Signal Set Bits
Signal=Signal<<4;
Time=atoi(argv[2]);
// Watchdog counter
Timer=Time*32768;
Counter0=(unsigned char)Timer;
Counter1=(unsigned char)(Timer>>8);
Counter2=(unsigned char)(Timer>>16);
// Select Watchdog Signal Source
outportb(IO_Port_Address,0x38); // WDT0 signal select
outportb(IO_Port_Address+1,Signal);
// Set Watchdog timer
outportb(IO_Port_Address,0x39); // WDT0 Counter0
outportb(IO_Port_Address+1,Counter0);
outportb(IO_Port_Address,0x3A); // WDT0 Counter1
outportb(IO_Port_Address+1,Counter1);
outportb(IO_Port_Address,0x3B); // WDT0 Counter2
outportb(IO_Port_Address+1,Counter2);
// Set Watchdog Enabled.
outportb(IO_Port_Address,0x37); // WDT0 Enabled Control Reg.
outportb(IO_Port_Address+1,0x40);
textcolor(YELLOW);
for(Temp=Time;Temp>0;Temp--)
{
gotoxy(20,10);
if(Signal==0xD0)
cprintf(">>> After %3d Second will reset the system. <<<",Temp);
else
cprintf(">>> After %3d Second Watchdog Signal will occur. <<<",Temp);
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