RE: piggyback fails with 6 transmitters

Landry — Mon, 23 Feb 2015 16:16:24 GMT

Thank you for your help. I work with custom hardware, and it's a big project, so the code "as is" may not be very useful. I'm writing a simple project running on PCA10000 board to go further in tests, but for now I can give you the following sample code illustrating failure, that checks the content you asked for.

if(!ESB_isEmetteur())
{
	if(!nrf_esb_add_packet_to_tx_fifo(currentPipe, buf, 32, NRF_ESB_PACKET_USE_ACK);//NRF_ESB_PACKET_NO_ACK))
{
	afterPipeState = nrf_esb_get_enabled_prx_pipes();//contains 0x3F
	afterThisTXFifoNbOfPackets = nrf_esb_get_tx_fifo_packet_count(currentPipe);//contains 0
	afterAllTXFifoNbOfPackets = nbPacketsInAllTxFifos();	//contains 4, recursive nrf_esb_get_tx_fifo_packet_count for all pipes 
	afterNRFEnabled = nrf_esb_is_enabled(); //contains 1
}
}

Is there any other quick tests I might perform ? Thank you,

RE: piggyback fails with 6 transmitters

Asbjørn — Mon, 23 Feb 2015 13:42:50 GMT

Would it be possible to share your code with us? I would encourage you to open a new support case in our MyPage system on our website in order to keep your code private.

The nrf_esb_add_packet_to_tx_fifo returns a zero/false if:

If pipe was invalid, payload pointer was NULL, payload length was invalid, insufficient space in FIFO memory pool or insufficient packets in TX queue.

Could it be that one of the parameters are not fulfilled. For example is the pipe closed? What if you try to re-open the pipe in question? What's the fifo status on the pipe when you see the occur?