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Motla1
Associate II
Sep 8, 2022 9:27 AM UTC
Question

PM0271 wrong RF frequency formula and table

Hello,

In programming manual PM0271 - STM32WB BLE stack programming guidelines

https://www.st.com/resource/en/programming_manual/pm0271-stm32wb-ble-stack-programming-guidelines-stmicroelectronics.pdf

In section 2.2

The correct formula should be : (2402 + k*2) MHz, where 0 ≤ k ≤ 39

The table 1 is not correct as well, it should conform to the formula.

e.g. Channel 10 = 2422 Mhz

Tested in hardware on NUCLEO-WB15CC using BLE_LLD_StartTone

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    3 replies

    KDJEM.1
    ST Technical Moderator
    Sep 12, 2022 3:01 PM UTC

    Hello @Motla​ ,

    I confirm that the (1) formula is not aligned with the values in table1 in the PM0271.

    I reported this issue internally. 

    I will get back to you with more details as soon as possible.

    Internal ticket number: 134452 (This is an internal tracking number and is not accessible or usable by customers).

    When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

     

    Kaouthar

    To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.
    KDJEM.1
    ST Technical Moderator
    Sep 22, 2022 7:57 AM UTC

    Hi @Motla​ ,

    I confirm that the correct formula is (2402 + 2*k) MHz, where 0 ≤ k ≤ 39,

    When your question is answered, please close this topic by choosing Select as Best. This will help other users find that answer faster.

    Kaouthar

    To give better visibility on the answered topics, please click on "Best answer" on the reply which solved your issue or answered your question.
    Motla1
    Motla1Author
    Associate II
    Jun 20, 2023 2:46 PM UTC

    Still not corrected in the Rev 7 - April 2023 release of the document...