Bios Memory Mapping; Watchdog Timer (Wdt) Setting - ROHS EmCORE-i2702 User Manual

Appendix

4.3 BIOS memory mapping

Item Address
1 00000h-9FFFFh
2 A0000h, BFFFFh
 C00000h - CFFFFh
 D0000h - DFFFFh
 E00000h - FFFFFh

4.4 Watchdog Timer (WDT) Setting

WDT is widely used for industry application to monitoring the activity of CPU.
Application software depends on its requirement to trigger WDT with ad-
equate timer setting. Before WDT time out, the functional normal system will
reload the WDT. The WDT never time out for a normal system. Then, WDT
will time out and reset the system automatically to avoid abnormal operation.
This board supports 2 levels watchdog timer by software programming.
/*----- Include Header Area -----*/
#include "math.h"
#include "stdio.h"
#include "dos.h"
/*----- routing, sub-routing -----*/
void main()
{
printf(" ITE 8718F WatchDog timer tester Ver:0.1 \n");
printf(" Warning: This tools is test only. \n");
outportb(0x2e, 0x87);
outportb(0x2e, 0x01);
outportb(0x2e, 0x);
outportb(0x2e, 0x55);
Description
DOS Kernel Area
EGA and VGA Video Buffer (128KB)
EGA/VGA ROM
Adaptor ROM
System BIOS
/* Start initial config port */
/*
/*
/* End of initial Config Port*/
- 6 -
*/
*/