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CC1312R7: 2-GFSK whitening and CRC algorithm

chun dong
Prodigy 30 points

Part Number: CC1312R7

hi, 

 we want to check the communication between LP-CC1312R7(RX) and other sub-1 GHz device(TX) which is not product of TI, we have verified they can commnucation well when we choose withening mode PN9, now we want to choose whitening mode as "7: Dynamically IEEE 802.15.4g compatible whitener and 16-bit or 32-bit CRC" like picture.

image.png 

but the LP-CC1312R7 can't receive the correct data, we want to modify TX device packet build process to make they can communicate well, so can you tell us what we should do or what whitening and CRC alogrithm we should use when we choose this whitening mode.

  • 0
    TI__Guru* 87841 points

    You will need to purchase the IEEE 802.15.4g spec. if you want details on how whitening and CRC is implemented. This is not an open spec (I think), so we cannot share any info on how this is done.

    If you are making your protocol from scratch and can configure the TX as you want, why do you want to use this whitening compared to for example the 1101 compatible whitening?

    Siri