BLE advertising Packet`s CRC can be 5 Bytes?

[seanur]

I Saw iBeacon Packet in the website

(d6 be 89 8e) Access Address for Advertising (40 24) Header (05 a2 17 6e 3d 71) Mac address (02 01 1a 1a ff 4c 00 02 15 e2 c5 6d b5 df fb 48 d2 b0 60 d0 f5 a7 10 96 e0 00 00 00 00 c5) Bluetooth Advertisement

(52 ab 8d 38 a5) Checksum

this packet is right? i can`t understand CRC 5Bytes

[John]

You are right to be confused. BLE as defined by the core specification contains a 24 bit CRC. So, either the packet was parsed incorrectly, or there are 2 bytes of garbage at the end.

[seanur]

Thank you!!