radio_tmr_start explanation

[moudi599]

Hi @cvinayak , i have a question regarding the radio_tmr_start() function in nordic, does this function only set the time that we want to alarm, or it sets and start the timer? what is the trigger of starting the timer of this function?

[github-actions[bot]]

Hi @moudi599! We appreciate you submitting your first issue for our open-source project. 🌟

Even though I'm a bot, I can assure you that the whole community is genuinely grateful for your time and effort. 🤖💙

[cvinayak]

radio_tmr_start() function sets the time and is started by the Programmable Peripheral Interconnect (NRF_PPI) between the Real-time counter (NRF_RTC/NRF_GRTC) and the Timer/counter (NRF_TIMER). The implementation is vendor specific using the mentioned peripherals used by other blocks in the Controller design here: https://docs.zephyrproject.org/latest/connectivity/bluetooth/bluetooth-ctlr-arch.html#overview and list of used hardware peripherals here: https://docs.zephyrproject.org/latest/connectivity/bluetooth/bluetooth-ctlr-arch.html#nordic-semiconductor

[moudi599]

@cvinayak , when does the NRF_PPI starts the timer, i mean upon what trigger?