SPI returns 0x0F on any request after random period of time

[Sergy]

Hi, im using nRF24L01+ to constantly transmit data and all working fine, but at some point SPI fails and the only returned values I get are 0x0F - doesnt matter which register I try to read or write. Any idea why is that happening?

Thanks, Sergey

[Sergy]

Yeah have some more of these. Actually when i set the rate to 1MBPS it happens very rare (hours). But If i set the rate to 250KBPS the problem happens very fast after 1 minute of runtime.

Is there no protection at all? So what happens when i have two devices that (hopefully) would transmit with the distance of 500m between each other and then we bring them close to each other - will they just fry each other?

[Håkon Alseth]

Forgot to answer the last question: If they are exposed to high RF input over time (> 0dBm) you will most likely damage the devices.

However, to ensure that you do not get 0 dBm or higher into the radio, just keep them 30 cm or so apart.