RX packets overlap (SoftDevice is not used)

RE: RX packets overlap (SoftDevice is not used)

Stanislav Silnitskiy — Mon, 21 Mar 2016 12:43:37 GMT

OK. Its clear, Thank you!

RE: RX packets overlap (SoftDevice is not used)

Hung Bui — Mon, 21 Mar 2016 12:41:59 GMT

When the radio is receiving the packet, the ADDRESS matched event will only occurs once. The radio works with a state machine, after the address is matched it will process to the payload. The receiver won't be able to detect the packet from T3, and simply gets an manipulated signals that it assumes coming from T2.

RE: RX packets overlap (SoftDevice is not used)

Stanislav Silnitskiy — Mon, 21 Mar 2016 11:43:51 GMT

Hi Hung, If RSSI from T3 is stronger enough, does it mean, that RADIO will just "forget" address bits, etc. already received from T2? And if I "listen" to ADDRESS event, does it mean, that it will be triggered twice?

RE: RX packets overlap (SoftDevice is not used)

Hung Bui — Mon, 21 Mar 2016 11:37:24 GMT

Hi Stanislav,

Yes, if the signal strength from T3 is strong enough to interfere with the signal from T2.
Most of the case R1 will receive CRC Error. It will receive CRC OK if by coincident the interfered packet managed to have the correct CRC. The more byte the CRC the smaller chance that R1 miss-detect the interference.
Yes, the shorter the packet length the bigger the chance the packet can get to R1 without being interfered.