watchdog timer example.

Development Boards MicroMod
1

could any one give me simply example(code) of watchdog timer for msp430F1611… any simple example for reference or some thing like that…

stop the watchdog timer.

start watchdog timer…

for(; ; )

keep checking watchdog timer counter whether it reset or not.

end loop.

It would be really nice if some one let me guide…Thanks.

2 
#include <msp430x16x.h> 

void flash_led(void); 

int main( void ) 
 { 
  WDTCTL = WDTPW + WDTHOLD; /* Stop watchdog timer */ 

  P3OUT &= ~BIT3; /* Set pin input LOW */ 
  P3DIR |= BIT3; /* Set pin direction to output */ 

  flash_led(); /* Flashing indicates MC start */ 

  IFG1 &= ~WDTIFG; 
  WDTCTL = WDT_MRST_32; /* Enable watchdog */ 

  for(;;) 
   { 
    WDTCTL |= WDTPW + WDTCNTCL; 
   } 

 } 


void flash_led(void) 
 { 
  unsigned int a,b; 

  for (a = 0; a < 8; a++) 
   { 
    for (b = 0; b < 25000;) 
    { 
     b++; 
    } 
   P3OUT ^= BIT3; /* Toggle output */ 
  } 
 }
3

thank…