I am working with the nRF52840 with the 14.1 SDK.
I am using the 15.4 UART example and currently only data_ack is enabled. I am hoping to add poll_data and poll_ack, what API's would you suggest to implement these features?
Thanks in advance!
What example specifically are you thinking of? UART emulated over BLE or normal UART? Since acknowlegment doesn't make sense regarding normal UART, I guess it is the former (either this or this example maybe).
However if you want to access the link layer (where acknowledgement takes places), this is not possible due to restricted accessibility: https://devzone.nordicsemi.com/f/nordic-q-a/18094/apis-for-link-layer-control-procedures.
Here are the API for respectively for the UART (hardware) and the Nordic UART service (emulation of UART over BLE):
Best regards Simon Iversen