How does the SPIRIT1 calculate CRC? I have the CRC mode set to 24 bits with the polynomial 0x864CFB. What is the initial seed value? If the length field is set at 7 bits, how is this incorporated into the CRC?

FSteg.1394 · ‎2019-11-18

I am specifically trying to receive a packet from a SPIRIT1 transmitter on another receiver.

Winfred LU · ‎2019-12-01

It pads the data with a 24-bit initial word (all 1s in this case) and start the division.

CRC-24-Radix-64 is used, which initial word set to 0xffffff and bits reversion is not done.