void WDT_EnableAndSetTimeout( void )
{
uint8_t temp = WDT_ENABLE_bm | WDT_CEN_bm | WATCHDOG_TIMEOUT;
CCP = CCP_IOREG_gc;
WDT.CTRL = temp;
/* Wait for WD to synchronize with new settings. */
while(WDT_IsSyncBusy());
}
/*! \brief Enable Watchdog without changing prescaler settings.
*
* This function enables the Watchdog without changing prescaler settings.
* The Watchdog will be reset automatically.
*
* The function writes the correct signature to the Configuration
* Change Protection register before writing the CTRL register. Interrupts are
* automatically ignored during the change enable period. The function will
* wait for the watchdog to be synchronized to the other clock domains. before
* proceeding
*/
void WDT_Enable( void )
{
uint8_t temp = WDT.CTRL | WDT_ENABLE_bm | WDT_CEN_bm;
CCP = CCP_IOREG_gc;
WDT.CTRL = temp;
/* Wait for WD to synchronize with new settings. */
while(WDT_IsSyncBusy()){
}
}
/*! \brief Enable Watchdog and set prescaler.
*
* This function enables the Watchdog and applies prescaler settings.
* The Watchdog will be reset automatically.
*
* The function writes the correct signature to the Configuration
* Change Protection register before writing the CTRL register. Interrupts are
* automatically ignored during the change enable period. TThe function will
* wait for the watchdog to be synchronized to the other clock domains. before
* proceeding
*
* \param period Watchdog Timer timeout period
*/
void WDT_EnableAndSetTimeout( WDT_PER_t period )
{
uint8_t temp = WDT_ENABLE_bm | WDT_CEN_bm | period;
CCP = CCP_IOREG_gc;
WDT.CTRL = temp;
/* Wait for WD to synchronize with new settings. */
while(WDT_IsSyncBusy()){
}
}
/*! \brief Enable window mode and set prescaler.
*
* This function enables window mode and applies prescaler settings.
* The WD must be enabled before enabling window mode and a true value is
* returned if this condition is met.
*
* The function writes the correct signature to the Configuration
* Change Protection register before writing the WINCTRL register. Interrupts are
* automatically ignored during the change enable period. The function will
* wait for the watchdog to be synchronized to the other clock domains. before
* proceeding
*
* \param period Window mode "closed" timeout period
*
* \retval true The WD is enabled before enabling window mode
* \retval false The WD is not enabled before enabling window mode.
*/
bool WDT_EnableWindowModeAndSetTimeout( WDT_WPER_t period )
{
uint8_t wd_enable = WDT.CTRL & WDT_ENABLE_bm;
uint8_t temp = WDT_WEN_bm | WDT_WCEN_bm | period;
CCP = CCP_IOREG_gc;
WDT.WINCTRL = temp;
/* Wait for WD to synchronize with new settings. */
while(WDT_IsSyncBusy()){
}
return wd_enable;
}
