Radio frequency change

[Dmitry]

Hello,

I'm developing proprietary radio protocol using nRF52 (not using softdevice) and would like to know if it is allowed to write NRF_RADIO->FREQUENCY register while radio is transmitting or receiving? What happens if NRF_RADIO->FREQUENCY is modified during transmission or reception?

I could assume that the register is probably locked while the radio is active but if this is the case then next question is when the register lock happens - when priming starts, when priming ends, when TX or RX starts?

What about NRF_RADIO->BASE0 and NRF_RADIO->BASE1 registers? What is latest moment of time when the registers should be set?

Thanks, Dmitry

[CurtisHx]

You need to disable the radio before you can change the frequency. You can write to the register all you want while the radio is enabled, but the data won't stick until the radio is disabled.

devzone.nordicsemi.com/.../