Trouble interfacing between nrf5340 and nrf24l01+ using ESB (Enhanced shockburst)

[Anthony Shivakumar]

Hi,

I am trying to interface NRF5340 and NRF24L01+. I am using the default esb PRX code in the SDK and changed the receiving address to

uint8_t base_addr_0[5] = {0xE7, 0xE7, 0xE7, 0xE7, 0xE7};

The NRF24L01+ works fine when I interface it with another NRF24L01+. Is there any changes to the code I must make to make them interface? I had an impression if I can make the NRF24L01+ work, then the NRF5340 too should work provided the address matches.

I am using RTT Logger to log events:

Thank you for your help?

[Håkon Alseth]

Hi,

 

The PRX example is setup with the equivilant to EN_DPL and DYN_ACK in nRF24L01+, as well as 16 bit CRC, listening on RF channel 2 (ie. 2402 MHz) etc:

https://github.com/nrfconnect/sdk-nrf/blob/master/samples/esb/prx/src/main.c#L148-L154

 

You need to match the settings on both ends to make the communication work.

 

Kind regards,

Håkon

[Anthony Shivakumar]

Perfect! I got it working. The CRC I needed to set. Also, the address needs to be left at 4bytes as  the prefix is added to the address.

Thank you!