/**
* Initialize the low power ticker
*/
void lp_ticker_init(void)
{
uint32_t lp_ticker_irqn = 0;
/* Verify if lp_ticker has been already Initialized */
if (lp_ticker_initialized == 1)
{
return;
}
lp_ticker_initialized = 1;
/* Dualtimer Initialize */
DualTimer_Initialize(DUALTIMER0, lp_ticker_reload);
/* Dualtimer Enable */
DualTimer_Enable(DUALTIMER0, DUALTIMER_COUNT_32
//| DUALTIMER_PERIODIC
);
/* DualTimer get IRQn */
lp_ticker_irqn = DualTimer_GetIRQn(DUALTIMER0);
/* Enable lp_ticker IRQ */
NVIC_SetVector((IRQn_Type)lp_ticker_irqn,
(uint32_t)__lp_ticker_irq_handler);
NVIC_EnableIRQ((IRQn_Type)lp_ticker_irqn);
}
/**
* Initialize the low power ticker
*/
void lp_ticker_init(void)
{
uint32_t lp_ticker_irqn = 0;
/* Verify if lp_ticker has been already Initialized */
if (lp_ticker_initialized == 1)
{
return;
}
lp_ticker_initialized = 1;
/* Dualtimer Initialize */
DualTimer_Initialize(DUALTIMER0, lp_ticker_reload);
/* Dualtimer Enable */
DualTimer_Enable(DUALTIMER0, DUALTIMER_COUNT_32
//| DUALTIMER_PERIODIC
);
/* DualTimer get IRQn */
lp_ticker_irqn = DualTimer_GetIRQn(DUALTIMER0);
/* Enable lp_ticker IRQ */
NVIC_SetVector((IRQn_Type)lp_ticker_irqn,
(uint32_t)__lp_ticker_irq_handler);
NVIC_EnableIRQ((IRQn_Type)lp_ticker_irqn);
/* DualTimer set interrupt on SINGLETIMER2 */
DualTimer_SetInterrupt_2(DUALTIMER0, DUALTIMER_DEFAULT_RELOAD,
DUALTIMER_COUNT_32 | DUALTIMER_PERIODIC);
/*
* Set lp_ticker Overflow limit. The lp_ticker overflow limit is required
* to calculated the return value of the lp_ticker read function in us
* on 32bit.
* A 32bit us value cannot be represented directly in the Dual Timer Load
* register if it is greater than (0xFFFFFFFF ticks)/DUALTIMER_DIVIDER_US.
*/
lp_ticker_overflow_limit = DualTimer_GetReloadValue(DUALTIMER0,
SINGLETIMER2);
}
