nRF52832 :- I am not getting interrupt for Timer NRF_TIMER_CC_CHANNEL4

[SanketSkyline]

Hello,

I am working with nRF5 SDK v17.1.0 and using nRF52832DK board. I want to use the hardware timer in continuous mode and also want to use all 6 compare channels of the timer. But I am only able to get interrupts for 0 to 3 compare channels i.e for only 4 compare channels. My code is below

void timer_init()
{
    uint32_t time_ms = 50, time = 0;
    nrf_drv_timer_config_t timer_cfg = NRF_DRV_TIMER_DEFAULT_CONFIG;
    err_code = nrf_drv_timer_init(&TIMER_TEST, &timer_cfg, timer_event_handler);
    APP_ERROR_CHECK(err_code);

    time = nrf_drv_timer_us_to_ticks(&TIMER_TEST, time_ms);

    nrf_drv_timer_extended_compare(
         &TIMER_TEST, NRF_TIMER_CC_CHANNEL0, time, 0, true);

    time = nrf_drv_timer_us_to_ticks(&TIMER_TEST, time_ms + 15);

    nrf_drv_timer_extended_compare(
         &TIMER_TEST, NRF_TIMER_CC_CHANNEL1, time, 0, true);

    time_ms += 50;
    time = nrf_drv_timer_us_to_ticks(&TIMER_TEST,time_ms );
    nrf_drv_timer_extended_compare(
         &TIMER_TEST, NRF_TIMER_CC_CHANNEL2, time, 0, true);
    
    
    time_ms += 50;
    time = nrf_drv_timer_us_to_ticks(&TIMER_TEST,time_ms ) ;
    nrf_drv_timer_extended_compare(
         &TIMER_TEST, NRF_TIMER_CC_CHANNEL3, time, NRF_TIMER_SHORT_COMPARE3_CLEAR_MASK, true);

    nrf_drv_timer_enable(&TIMER_TEST);
}



void timer_event_handler(nrf_timer_event_t event_type, void* p_context)
{
    switch (event_type)
    {
        case NRF_TIMER_EVENT_COMPARE0:
        {
           printf("NRF_TIMER_EVENT_COMPARE0 \n");
        }break;
        
        case NRF_TIMER_EVENT_COMPARE1:
        {
           printf("NRF_TIMER_EVENT_COMPARE1 \n");
        }break;
        
        
        case NRF_TIMER_EVENT_COMPARE2:
        {
           printf("NRF_TIMER_EVENT_COMPARE2 \n");
        }break;
        
        case NRF_TIMER_EVENT_COMPARE3:
        {
           printf("NRF_TIMER_EVENT_COMPARE3 \n");
        }break;
    
    }
}

The above code is working fine. But when I just add NRF_TIMER_EVENT_COMPARE4 in init and in IRQ, I have the below observations:

1. Not getting interrupt for NRF_TIMER_EVENT_COMPARE4

2. for CC0, CC1, CC2, and CC3 I get interrupted only once (not getting continuous)

Please help to enable CC4 & CC5 and let me know what corrections need to be done in the code so that my timer will work in continuous mode for all 6 compared channels.

Best Regards,

Sanket Chadawar

[Daniel Chisholm]

You don't show the declaration for TIMER_TEST, I wonder if you are using one of the TIMER peripheral instances that has only four CC channels (some have four, some have six.... see the product spec for this)

[SanketSkyline]

Hello,

I am using Timer 0. I tried with Timer 4 and it is working. Thank you.

Best Regards,

Sanket Chadawar