print number of retransmissions ESB nRF52

[florian2840]

Hello,

i am searching for the possibility to get the information of the number of retransmissions which are needed, to get an ACK from the receiver. The legacy chip nRF24L01+ had a register value, which I could read out. But I didn't find any possibilities in the enhanced shockburst protocoll soft device so far.

Thanks in advance,

Florian

[Hung Bui]

Hi Florian ,

You can find the number of tx attempt when you receive the ESB event, it's in the event.tx_attempts variable.

The new uESB library in the SDK v11 comes with the source code. You can open the nrf_esb.c to find out.

[cprehn]

Hello,

When would the value need to be read in order to get the total number of retransmission attempts for the packet?  It seems like it would be done once the packet has actually been successfully transmitted and received or if the retransmission max has been reached.  So in the nrf_esb_event_handler would I read the event.tx_attempts value on a NRF_ESB_EVENT_TX_SUCCESS condition?

Thanks