Copyright © 2012 NEXCOM International Co., Ltd. All Rights Reserved.
55
NDiS 127 User Manual
Appendix A: Watchdog Timer
outportb(INDEXP,reg);
outportb(DATAP,val); }
//1.Initialize Watchdog device
short SIOWTD_Setup(short irq)
{
//Start programming Watchdog
STARTPROG
//Activate the Watchdog Device
SELEDEV(7) //Select Logical device7
WRITEREG(0x30,0x01) //Activate the device
//end programming watchdog
ENDPROG
return 0;
}
//2.start Watchdog to count
short SIOWTD_Enable(short time,short unit)
/*unit=0:second,=1:minutes */
{
if(time<1 || time>255) return -1;
if(unit<0 || unit>1) return -1;
//start programming watchdog
STARTPROG
SELEDEV(7) //logical device 7
/ /lect Watchdog Timer clock
switch(unit)
{
case 0:
//BIT7=1,secondes;BIT6=1 enable,BIT6=0 disable
WRITEREG(0x72,0xC0)
break;
case 1:
//BIT7=0,minutes BIT6=1 enable,BIT6=0 disable
WRITEREG(0x72,0x40)
break;
default:
break;
}
WRITEREG(0x73,time) //t timeout value
//end programming watchdog
ENDPROG
return 0;
}
