Zippy Tech. HG2 Manual do Utilizador descarregar pdf (Página 62)

50 Watchdog Timer

outportb(wdt_io_base+0x18,2);//watchdog

timer enable!!

printf("\nPlease waiting for Watch-Dog Timer

time-out!!");

}

/************************************/

unsigned int read_wdt_io_base()

{

unsigned char_wdt_io_base[2];

int *p_wdt_io_base;

p_wdt_io_base=&_wdt_io_base;

enter_config_mode();

write_config_data_byte(0x07,6);//select

logic 6 - WDT

_wdt_io_base[1]=read_config_data_byte(0x60)

;

_wdt_io_base[0]=read_config_data_byte(0x61)

;

exit_config_mode();

return (*p_wdt_io_base);

}

/************************************/

void enter_config_mode()

{

outportb(config_port_index,0x80);

outportb(0xeb,00); //io delay

outportb(config_port_index,0x86);

}

/************************************/

void exit_config_mode()

{

outportb(config_port_index,0x68);

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Zippy Tech. HG2 Manual do Utilizador Página 62