nrf24L01 only received packets on second tx packet from nrf52

RE: nrf24L01 only received packets on second tx packet from nrf52

Hung Bui — Mon, 11 Apr 2016 07:48:46 GMT

Hi Yon,

You mean if you add one more switch case for HAL_NRF_RX_DR it worked ? I'm not so sure about why you want to catch HAL_NRF_TX_DS event for ack payload.

RE: nrf24L01 only received packets on second tx packet from nrf52

yon — Mon, 11 Apr 2016 03:16:27 GMT

Hi,

The switch case was used for ack payload.

The solution was to add 1 more case with only HAL_NRF_RX_DR.

RE: nrf24L01 only received packets on second tx packet from nrf52

Hung Bui — Fri, 08 Apr 2016 08:51:25 GMT

Hi Yon,

In your code I can see that you switch between RX and TX every time you receive something. If you don't do that and simply stay in RX mode do you have the same issue ? If possible please test again with the example in nRFGo SDK.

I don't really understand this swich case:

 case(1 << HAL_NRF_TX_DS | 1 << HAL_NRF_RX_DR):
			last_pipe_received = hal_nrf_get_rx_data_source();
				
			radio_busy = false;
      data_received = true;
      break;

Why HAL_NRF_TX_DS here ?

RE: nrf24L01 only received packets on second tx packet from nrf52

yon — Fri, 08 Apr 2016 05:41:10 GMT

Only 1 interrupt triggered and 2 packet inside FIFO.

RE: nrf24L01 only received packets on second tx packet from nrf52

Hung Bui — Thu, 07 Apr 2016 07:28:09 GMT

Hi Yon,

I understand that you receive 2 packet at once. But could you check on how you get the 2 packets ? both packets are in the FIFO or you receive 2 RX_DR interrupts ?

RE: nrf24L01 only received packets on second tx packet from nrf52

yon — Thu, 07 Apr 2016 07:13:20 GMT

It means like the flow below:

nrf52 -> nrf24LE1 (nrf24LE1 not received)

nrf52 -> nrf24LE1 (received previous packet and current packet)

nrf52 -> nrf24LE1 (nrf24LE1 not received)

nrf52 -> nrf24LE1 (received previous packet and current packet)

: : :

You can find the Keil Project files for the nRF24LE1 Here https://drive.google.com/file/d/0B1l3b0VIzm27OGM4WG5ZSEZvWEE/view?usp=sharing

RE: nrf24L01 only received packets on second tx packet from nrf52

Hung Bui — Wed, 06 Apr 2016 10:57:26 GMT

Hi Yon,

Could you share a little bit more on "twice packet sent out and both packet will received at the same time." ? Did you mean you receive 2 RX_DR interrupts or you receive only 1 RX interrupt but found 2 packet in the FIFO ? Do you have the same problem when testing with our SDK's example ? (when disable ACK)