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re.wolff9
re.wolff9
Senior
May 2, 2016
Question

Interrupts during flash programming

  • May 2, 2016
  • 1 reply
  • 687 views
Posted on May 02, 2016 at 08:23

While programming the flash memory cannot provide instructions to the processor for execution. So you can only run programs from cache (which you processor doesn't have) or RAM. 

I expect that your code writes a group of data to the flash memory. Then between each write there is a very small time window where the interrupt can fire. and prevent execution of the next flash write (for a short while). That's why the interrupts happen at all... 

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    1 reply

    Amel NASRI
    Amel NASRI
    ST Technical Moderator
    May 23, 2016
    Posted on May 23, 2016 at 12:46

    Answer related to

    https://my.st.com/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/Flat.aspx?RootFolder=/public/STe2ecommunities/mcu/Lists/cortex_mx_stm32/STM32L1%20%20interrupts%20not%20fired%20during%20flash%20programming

    .

    -Mayla-

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