nrf24l01+ data loss

RE: nrf24l01+ data loss

Leonardo — Fri, 24 Oct 2014 15:30:38 GMT

I have not yet tried, I switched to another project but this week I try it.

RE: nrf24l01+ data loss

Asbjørn — Mon, 06 Oct 2014 14:53:26 GMT

I'm sorry, the TX_EN name is my mixup, I was referring to the CR pin. You can't hold the chip in TX mode with CE high for longer than 4 ms at the time.

RE: nrf24l01+ data loss

Leonardo — Mon, 06 Oct 2014 14:00:05 GMT

I have some retransmission occasionally.

There isn't TX_EN register, do you mean PRIM_RX in CONFIG register?

Thank you

PS: Shockburst should not change automatically to RX to receive ACK packets? Why I have to switch to Standby?

RE: nrf24l01+ data loss

Asbjørn — Mon, 06 Oct 2014 13:51:06 GMT

The same 4 ms rule applies for Shockburst as well. Please reset the PLL on the transmitter by toggling TX_EN at least once every 4th ms.

RE: nrf24l01+ data loss

Leonardo — Sun, 28 Sep 2014 18:13:24 GMT

I will check ARD and ARC registers on PTX side.

Datasheet say that

It is important never to keep the nRF24L01+ in TX mode for more than 4ms at a time. If the Enhanced ShockBurst™ features are enabled, nRF24L01+ is never in TX mode longer than 4ms

But with Shockburst should be no problem keeping TX active for long time... or not?

Problem is after 20-30 seconds of device running

Thank you

RE: nrf24l01+ data loss

Asbjørn — Thu, 25 Sep 2014 14:02:56 GMT

How are you configuring the nRF24L01+? Are you keeping the transmitter in TX_EN for a long time? Do you actually lose radio packets (check ARD and ARC) on the PTX side?