nRF24LE1 : Payload with ACK

RE: nRF24LE1 : Payload with ACK

mr_creosote — Wed, 15 Mar 2017 16:34:26 GMT

Just to be clear, calling hal_nrf_write_ack_payload() preloads an ack packet that's then sent to the PTX when the PTX sends a packet to the PRX. if your code takes too long to assemble the ack payload, the PTX will timeout and assume that no ack was received. you can also have your PTX send two packets -- one with the real data, which once received, the PRX will assemble an ack packet. and then the PTX waits a little bit and then sends a second packet, the response to which is the actual ack packet.

RE: nRF24LE1 : Payload with ACK

mr_creosote — Tue, 03 Jan 2017 22:59:19 GMT

Hi, this sample project works. I changed the ARD to 1500uS because I'm using a data rate of 250kbps. I'm able to transmit a full 32 byte packet and receive a 32 byte payload in the ACK. Note that ACK+payload works only in dynamic packet length mode. ACK+payload has poor results at 250kbps under gazell (which seems to work well only at 1 or 2mbps). Hope this helps.

RE: nRF24LE1 : Payload with ACK

Håkon Alseth — Tue, 10 Sep 2013 05:59:34 GMT

Hi Cedric,

You will need to upload the ACK payload on pipe0, because that pipe corresponds with the address you are receiving on.

Best regards Håkon

RE: nRF24LE1 : Payload with ACK

Cedric — Mon, 09 Sep 2013 12:55:27 GMT

Hi, Thank You Hakon, My problem is the data pipe 1 because the PTX transmit on the data pipe 0.

Best regards Cedric

RE: nRF24LE1 : Payload with ACK

Håkon Alseth — Mon, 09 Sep 2013 10:03:53 GMT

Hi,

On PRX: Try uploading the ACK payload before reading out the payload in order to piggy-back it on the same transaction.

On PTX: What happens if you poll the RX FIFO in main? Do you get any payloads then?

Best regards Håkon