I want to make a rtc calendar.As rtc1 compare channel 0 had been used by app_timer,so I use rtc1 compare channel 1 to generate interrupt very second. But the channel 1 didn't generate interrupt. Here is the configuration.
//channel 0 for app_timer static void rtc1_start(void)
{
if( !m_rtc1_time_tick ) /jam/
{
NRF_RTC1->EVTENSET = RTC_EVTEN_COMPARE0_Msk;
NRF_RTC1->INTENSET = RTC_INTENSET_COMPARE0_Msk;
NRF_RTC1->EVENTS_COMPARE[0] = 0;
NVIC_ClearPendingIRQ(RTC1_IRQn);
NVIC_EnableIRQ(RTC1_IRQn);
NRF_RTC1->TASKS_START = 1;
nrf_delay_us(MAX_RTC_TASKS_DELAY);
}
else /jam/
{
NVIC_DisableIRQ(RTC1_IRQn);
NRF_RTC1->EVTENSET = RTC_EVTEN_COMPARE0_Msk;
NRF_RTC1->INTENSET = RTC_INTENSET_COMPARE0_Msk;
NRF_RTC1->EVENTS_COMPARE[0] = 0;
NRF_RTC1->TASKS_START = 1;
nrf_delay_us(MAX_RTC_TASKS_DELAY);
NVIC_EnableIRQ(RTC1_IRQn);
}
m_rtc1_running = true;
}
//channel 1 for second calendar void rtc1_second_start(void)
{
if( !m_rtc1_running ) /jam/
{
NRF_RTC1->EVTENSET = RTC_EVTEN_COMPARE1_Msk;
NRF_RTC1->INTENSET = RTC_INTENSET_COMPARE1_Msk;
NRF_RTC1->EVENTS_COMPARE[1] = 0;
NRF_RTC1->CC[1] = BLE_SYSTEM_CLOCK_EVET_PERIOD;
NVIC_ClearPendingIRQ(RTC1_IRQn);
NVIC_EnableIRQ(RTC1_IRQn);
NRF_RTC1->TASKS_START = 1;
nrf_delay_us(MAX_RTC_TASKS_DELAY);
}
else /jam/
{
NVIC_DisableIRQ(RTC1_IRQn);
NRF_RTC1->EVTENSET = RTC_EVTEN_COMPARE1_Msk;
NRF_RTC1->INTENSET = RTC_INTENSET_COMPARE1_Msk;
NRF_RTC1->EVENTS_COMPARE[1] = 0;
NRF_RTC1->CC[1] = BLE_SYSTEM_CLOCK_EVET_PERIOD;
NRF_RTC1->TASKS_START = 1;
nrf_delay_us(MAX_RTC_TASKS_DELAY);
NVIC_EnableIRQ(RTC1_IRQn);
}
m_rtc1_time_tick = true;
}
//interrupt handler void RTC1_IRQHandler(void)
{
if( NRF_RTC1->EVENTS_COMPARE[0] != 0 )
{ NRF_RTC1->EVENTS_COMPARE[0] = 0;
// Check for expired timers
timer_timeouts_check();
}
if( NRF_RTC1->EVENTS_COMPARE[1] != 0 )
{ NRF_RTC1->EVENTS_COMPARE[1] = 0; NRF_RTC1->CC[1] = BLE_SYSTEM_CLOCK_EVET_PERIOD;
if( m_rtc1_time_tick )
{
if( !clock_int_flag )
{
clock_int_flag = true;
}
//clock_second_tick++; //for revise
//systemFlag4 |= SECOND_CARRY_FLAG;
//set_system_event( SBP_SECOND_CARRY_EVT );
}
}
// Clear all events (also unexpected ones)
NRF_RTC1->EVENTS_COMPARE[2] = 0;
NRF_RTC1->EVENTS_COMPARE[3] = 0;
//NRF_RTC1->EVENTS_TICK = 0;
//NRF_RTC1->EVENTS_OVRFLW = 0;
}
