Texas Instruments MSC1210, Руководство пользователя

Страница: 243 / 324

Watchdog Timer
17-15
Keil Simulator
/*start short loop to test DWDT*/
for (i = 0; i < 4000; i ++)
{//idle delay
j = (i *13) % 4000;
}
//Disable watchdog timer before timer expires
WDTIMER |= 0x40;
WDTIMER &= ~0x40;
//Reinitialize watchdog, sinice it has just been disabled
init_watchdog ( );
/*start short loop to test RWDT*/
for (i = 0; i < 400; i ++)
{//idle delay
j = (i *13) % 4000;
}
/*Reset Watchdog Timer before Watchdog Timer Expires*/
WDTIMER |= 0x20;
WDTIMER &= ~0x20;
/*Infinite loop to test Watchdog Timer Time out with interrupt.
In the case in which the Watchdog Reset cannot be disabled,
there will not be any interrupts. The watchdog time would
eventually run out, and a reset procedure will be activated*/
while (1)
{
watchdog_loop = 1;
while (watchdog_loop);
}
}