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CCS/IWR1642BOOST: Frame header question of lab11 pplcount

Part Number: IWR1642BOOST
Other Parts Discussed in Thread: IWR1642

Tool/software: Code Composer Studio

Hi,

i am using IWR1642 board and running lab 11 pplcount, i use another Nordic BLE EVB connected to IWR1642 board and transfer BLE data to Android app thru UART. when i check the frame header from android log, the length is 52 bytes, but i didn't find the sync pattern "02 01 04 03 06 05 08 07"  in the beginning of packet transfer as below screenshot. would like to know what does "04-00-00-02-42-16-0A" before "02 01 04 03 06 05 08 07" from below red rectangle stands for? Does it stands for platform or version from frame header?  And, why does the packet not following the frame header definition from user guide? Thanks!

Ken