nRF52840 802.15.4 MAC Selectively On/OFF MAC TX or RX

RE: nRF52840 802.15.4 MAC Selectively On/OFF MAC TX or RX

AndreasF — Thu, 08 Aug 2019 06:51:49 GMT

Hi.

Changing radio states are handled internally when you call one of the functions in external\nRF-IEEE-802.15.4-radio-driver\src\nrf_802154.h

For example:

Best regards,

Andreas

RE: nRF52840 802.15.4 MAC Selectively On/OFF MAC TX or RX

Dattatray — Wed, 07 Aug 2019 14:02:57 GMT

Thanks for reply, But how to select these radio states?

There are two kind of functions

1 nrf_802154_receive() or nrf_802154_transmit

2. nrf_802154_request_xxxx but this function doesnt have input as radio states

which one I have to use?

RE: nRF52840 802.15.4 MAC Selectively On/OFF MAC TX or RX

AndreasF — Wed, 07 Aug 2019 11:04:40 GMT

Hi.

It is not possible to manage the transmitter separately from the receiver.

The nRF IEEE 802.15.4 radio driver can be in one of following states at a time:
- SLEEP (disabled transciever)
- RX (enabled receiver, or transmitter when transmitting an Ack)
- TX (enabled transmitter, or receiver during CCA or receiving an Ack)
- ED (energy detection - enabled receiver)
- CCA (enabled receiver)
- continuous carrier (enabled transmitter)

This is found in external\nRF-IEEE-802.15.4-radio-driver\src\nrf_802154_core.h

You can only select on of these states, and the driver will manage the transceiver according to the current operation.

Best regards,

Andreas