/**
* @brief Services timer and sio handler
*
* This function calls sio & timer handling functions.
*/
void pal_task(void)
{
#if (TOTAL_NUMBER_OF_TIMERS > 0)
timer_service();
#endif
#ifdef USB0
/*
* If the serial communication is done using USB, only then the 'usb_handler'
* needs to be called. For UART, the data handling is done in the UART ISR.
*/
usb_handler();
#endif /* USB0 */
#ifdef WATCHDOG
WDT_RESET();
#endif
driver_task();
}
/**
* @brief Initialization of PAL
*
* This function initializes the PAL. The RC oscillator is calibrated.
*
* @return MAC_SUCCESS if PAL initialization is successful, FAILURE otherwise
*/
retval_t pal_init(void)
{
/* Clear any pending watchdog reset flag */
uint8_t temp = MCUSR;
temp++; /* keep compiler happy */
MCUSR = 0;
#ifdef WATCHDOG
/* Watchdog Initialization. Enables the watchdog and sets the timeout period */
wdt_init();
#else
WDT_RESET();
WDT_DISABLE();
#endif
mcu_init(); // see pal_mcu_generic.c
timer_init(); // see pal_timer.c
gpio_init(); // see pal_board.c
driver_init();
return MAC_SUCCESS;
}
void wdt_reset_mcu()
{
// signal wdt to reset on timeout
WDT_RESET();
}