NRF24L01+ one RX and two or more TX

RE: NRF24L01+ one RX and two or more TX

Erol — Mon, 20 Feb 2017 17:03:44 GMT

My problem is solved now. The main problem was to enable more than 1 pipe on RX side. It should be only one pipe which is P0 and when I did this all the problems are disapeared. Thanks to Hung he advised me to use only one RX pipe on TX side and everything is solved.

RE: NRF24L01+ one RX and two or more TX

Erol — Mon, 20 Feb 2017 14:25:32 GMT

I am working on this project since some days and I got success after my first question. Now I think I got success also for the pipe2 by enabling only P0-P1 and P2 ib RX side and Only P0 on TX sides. By this configuration is working (I could not belive yet) because I was thinkin I already tried all the alternatives. Anyhow I will test it at home this evening and let you know the situation this evening also. Thanks for your help. Erol

RE: NRF24L01+ one RX and two or more TX

Hung Bui — Mon, 20 Feb 2017 14:12:13 GMT

But you mentioned, it worked for you on one on one communication, and also you said in the other case that P0 and P1 worked fine ?

RE: NRF24L01+ one RX and two or more TX

Erol — Mon, 20 Feb 2017 13:44:18 GMT

I checked already all the configurations. My last logical decision was to anbale only one pipe which is P0 and nothing else. But again this also has not worked. Erol

RE: NRF24L01+ one RX and two or more TX

Hung Bui — Mon, 20 Feb 2017 13:35:17 GMT

Just checked your other case. Very strange that when you enable pipe 2 , the other pipes stopped working.

On the PTX side there is a little bit unusual that you enable EN_RXADDR on PTX. Could you check to set it to 0x01 only ? If you try to change Pipe 2 address to something else would the same thing happen ?

RE: NRF24L01+ one RX and two or more TX

Erol — Mon, 20 Feb 2017 13:32:28 GMT

I am getting data form TX0 (over Pipe0) and TX1 (Over Pipe1) nothing else. IF I enable also Pipe2 the system is becoming blocked. RX can not get any data from T0-T1-TX2. I used default settings. I already tried to anble all the pipes and gave all necessary figures but nothing is changed. I am thinking I have an address problem. I am giving $C3 as the address to the Pipe2 (which is also default) I am using on TX2 as TX adress C2-C2-C2-C2-C3 and RX_Adres_P0 same. The C3 figure is given first to the NRF (as LSB byte) and following other C2 figures) I am reading in RX and also TX2 what address has been written they are right. But it does not work. I do not know why. I checked the SB packet format and I see there a preambl one byte. Do I need to add this to the my payload this preambl or NRF is arranging it automatically. I have no idea what I have to do for that format.!!!!

Erol

RE: NRF24L01+ one RX and two or more TX

Hung Bui — Mon, 20 Feb 2017 13:17:30 GMT

If you send something via the nRF24L01+ Radio you already use SB or ESB. ESB is enabled by default, you can configure to use SB as in section 7.9 in the spec.

When you mention you got success on one on one communication, which address did you use? Can you receive packet from TX2 ?

You can first try to verify all the pipes (or at least pipe0, pipe 1 and pipe 2) can receive data, use just one TX, and change the address to test on each pipe. After that you can test when both running.