Watchdog DUE

hello users

i have problem enable watchdog timer.

in mij main.cpp have added ->

code: [select]


int main( void )
{
/*++*/ watchdogsetup();

init();

initvariant();

delay(1);



then have created watchdog.cpp , watchdog.h

this watchdog.h

code: [select]


#ifndef _watchdog_
#define _watchdog_

#include <stdint.h>

// watchdog functions

/*
 * \brief enable watchdog specified timeout. should called once.
 *
 * \param timeount in milliseconds.
 */
void watchdogenable (uint32_t timeout);

/*
 * \brief disable watchdog timer. should called once.
 *
 */
void watchdogdisable (void);

/*
 * \brief reset watchdog counter.
 *
 */
void watchdogreset (void);

/*
 * \brief watchdog initialize hook. function called init(). if user not provide
 * function, default action disable watchdog.
 */
void watchdogsetup (void);

#endif /* _watchdog_ */



this watchdog.cpp

code: [select]



#include <chip.h>

#include "watchdog.h"


void watchdogenable (uint32_t timeout)
{
/* assumes slow clock running @ 32.768 khz
   watchdog frequency therefore 32768 / 128 = 256 hz */
timeout = timeout * 256 / 1000;
if (timeout == 0)
timeout = 1;
else if (timeout > 0xfff)
timeout = 0xfff;
// timeout = wdt_mr_wdrsten | wdt_mr_wdrproc | wdt_mr_wdv(timeout) | wdt_mr_wdd(timeout);
timeout = wdt_mr_wdrsten | wdt_mr_wdv(timeout) | wdt_mr_wdd(timeout);

wdt_enable (wdt, timeout);
}

void watchdogdisable(void)
{
wdt_disable (wdt);
}

void watchdogreset(void)
{
wdt_restart (wdt);
}


extern "c"
void _watchdogdefaultsetup (void)
{
wdt_disable (wdt);

}
void watchdogsetup (void) __attribute__ ((weak, alias("_watchdogdefaultsetup")));



and last: code->

code: [select]



void setup() {
   serial.begin(9600);

}

void loop() {
   
serial.println ("i need see more ones know the watchdog timer enabled");
 
  while (1);
 
}



but question how enable watchdog timer??
the antser not just: put watchdogenable(10); in it

can me?

the answer is: don't. longer implausible answer go in time , slap whoever disabled watchdog timer in arduino core library. longer , viable answer go arduino core library , modify not disable watchdog timer. see, can set watchdog once on microprocessor. after ignores changes. so, once disabled cannot enable it. once enable @ speed believe cannot change speed or disable it. presumably no programming mistake can mess watchdog it's annoying.

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