BLE link - half-duplex or full-duplex mode

[Roei]

Hi,

How can I know whether the BLE link between my nrf52840 device and the pc (while connecting via NFC) or the mobile, is configured as a half duplex or a full duplex mode?

Thanks!

[Kenneth]

If you have a BLE link then data can be sent and received both ways yes. For NFC it is also possible to read and write data both ways.

Best regards,
Kenneth

[Roei]

Hi Kenneth, thanks for your response!

That means, that both devices (nrf device & PC/mobile) can transmit concurrently?

Is that the default case? Can I change the state from full duplex to half duplex?

Thanks!

[Kenneth]

In BLE the communication is synchronized, such that the peripheral device will always "lock" to the timing of the central. This means that if there is no data either or both ways, then empty packets will be sent.

Best regards.
Kenneth