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songkw
Associate II
January 22, 2024
Solved

BLE_HeartRateFreeRTOS question

STM32WB55RGV MCU is in use, and BLE_HeartRateFreeRTOS example is under review.

 

In the example of BLE_HeartRateFreeRTOS, it was confirmed that the STOP2 mode function was included, but I don't know the Stop mode entry conditions.

And I wonder if I can set the BLE ad timeout in the BLE_HeartRateFreeRTOS example.

Or let me know if you have any documentation that explains this example in detail...

This is because I want to know information such as current consumption in STOP2 mode.

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songkwBest answer
Associate II
March 5, 2024

Hello
After a long time... I finally worked it out on my own..

Whenever we use a delay of less than 1ms in the task, there is a condition that we cannot enter the stop mode, so we understand the structure and use it well..
Thank you.

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4 replies

STTwo-32
STTwo-32
ST Technical Moderator
January 24, 2024

Hello @songkw 

I suggest you take a Look at the AN5289 specially the part 4.9 to understand how BLE application works. 

For the "information about current consumption in STOP2 mode" you can take a look at the table 43 of the DS11929.

Best Regards.

STTwo-32

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    songkwAuthor
    Associate II
    January 24, 2024

    I checked the above two documents well
    I've been analyzing the example above for a few days now.

     

    What I'm curious about is
    1. Cause of waking up immediately after entering STOP2 mode
    2. How I can do STOP2 mode for as long as I want
    3. It's similar to question 1, but is it normal to wake up immediately after entering STOP2 mode and continue to generate idleHook?

     

    STTwo-32
    STTwo-32
    ST Technical Moderator
    March 4, 2024

    Hello @songkw 

    1+3. Check the interrupts that do the wake up from STOP2 mode to understand the reason behind this wake-up.

    2.You can set a condition to enter and exit STOP2 Mode according to the possible source of wake up from stop2 Mode (check in the reference manual).

    Best regards.

    STTwo-32

    To give better visibility on the answered topics, please click on Accept as Solution on the reply which solved your issue or answered your question.
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