"Event endpoints are only able to recognize addresses from the EVENT group" Can you please explain it properly?

[krishna]

I am not understanding that what should be event pointer and task pointer address. Can you please explain it with some example in detail.

[krishna]

Thank you very much for your answer. But in this below code what will be *event_ptr and *task_ptr?

void ppi_enable_channel(uint32_t ch_num, volatile uint32_t *event_ptr, volatile uint32_t *task_ptr)
{
    if(ch_num >= 16)
    {
        return;
    }
    else
    {
#if(USE_WITH_SOFTDEVICE == 1)
        sd_ppi_channel_assign(ch_num, event_ptr, task_ptr);
        sd_ppi_channel_enable_set(1 << ch_num);
#else
        // Otherwise we configure the channel and return the channel number
        NRF_PPI->CH[ch_num].EEP = (uint32_t)event_ptr;
        NRF_PPI->CH[ch_num].TEP = (uint32_t)task_ptr;
        NRF_PPI->CHENSET = (1 << ch_num);
#endif

moderator edit: use of code tags

[Håkon Alseth]

This is a function that handles configuration of PPI channels when the softdevice is enabled and disabled. Since the softdevice uses the PPI, it is a restricted peripheral and should be accessed via the nrf_soc library when it's enabled.

You can call this function similar to this: "ppi_enable_channel(MY_PPI_CHANNEL, &NRF_TIMER0->EVENTS_COMPARE[0], &NRF_ADC->TASKS_START);"