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Can I change CC2500 Preable Pattern from 1010… to 0101…?

Masa
Intellectual 310 points
Other Parts Discussed in Thread: CC2500

Is there any solution to change preamble pattern from default 1010… to 0101…?

I think that it’s possible to control by MCU with disabling preamble and sync. However, it’s very tough to check it by MCU on receiver side.

So, I’m wondering if there is a solution to support it by hardware.

 

Best regards,

Masa

  • 0
    TI__Guru**** 317180 points

    The preamble is fixed to 0xAA. Any reason why you can't use this?

  • 0 in reply to TER
    Intellectual 310 points

    Hi

    Thank you for your feedback. Noted that the preamble of CC2500 is fixed by hardware.

    The back ground of my question is that we would like to use the preamble defined in 15.4g which is 0101.. for 2FSK.
    Also, in the manual of session 15.2, there is the following description. So, I was just wondering that there was some method for the setting of SYNC1 to be used as preamble pattern.
    ====
    A one-byte sync word can be emulated by setting the SYNC1 value to the preamble pattern.
    ====

    Best regards,
    Masa