RE: nRF Connect Timer PPI

TimK — Thu, 10 Mar 2022 16:53:06 GMT

One issue has been solved, the IRQ of the timer has to be connected in order to work.

IRQ_CONNECT(DT_IRQN(DT_NODELABEL(timer1)), DT_IRQ(DT_NODELABEL(timer1), priority), nrfx_isr, nrfx_timer_1_irq_handler,0);

This will get the interrupt to be called every second.

The other error is using "nrfx_timer_compare_event_addr_get" instead of "nrfx_timer_event_addr_get". So changing to

uint32_t timer_event_addr = nrfx_timer_event_address_get(&my_nrfx_timer, NRF_TIMER_EVENT_COMPARE0);

also resolves this and the LED blinks with a 1s interval.

If anyone with more expierience is kind enough, to explain why this IRQ_CONNECT is necessary or there are two methods for getting the timer event, i would be stoked to find out :).

RE: nRF Connect Timer PPI

TimK — Thu, 10 Mar 2022 15:25:03 GMT

ublox bmd360 evaluation board with the nRF52811

RE: nRF Connect Timer PPI

Priyanka — Thu, 10 Mar 2022 15:06:23 GMT

Hi Tim,

Which board are you using?

Regards,

Priyanka