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CC1350: Ambiguous inverted syncword specification for SimpleLink Long Range Packet Format

Paal Oeyvind Reichelt
Prodigy 152 points
Part Number: CC1350

Hello, I'm trying to come to terms with the actual bits presented to the modulator in "Mode 2- SimpleLink Long Range Packet Format" as described in https://www.tij.co.jp/jp/lit/an/swra642/swra642.pdf 

AFAICT, the figure shows the opposite configuration ((M+1)x normal, 1x inverted) of the sync words than what is described in the text ((M+1)x inverted, 1x normal). Which is correct?

  • 0
    TI__Guru* 79461 points

    Hi Pål Øyvind

    You are correct. There is a mismatch between the figure and the text below it. The figure is correct, and the text should be:

    The first M times the normal sync word is sent, followed by a single repetition of the inverted sync word. The inverted sync word is 0xCCC3 C3CC C33C 3333.

    BR

    Siri