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Is increment uint32_t atomic operation

naeem ahmad

Hi,

I have CMSIS RTOS thread increment uint32_t variable.

Other thread is reading uint32_t variable.

Do I need to use mutex to protected these read and write.

Can I use any better way without using OS mutex.

Thanks,
Naeem

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    Make sure the variable is volatile.

    If you just increment it in one place(thread), and read it in multiple places, then you don't need a mutex.

    Mutex won't help if you are interrupting the holder.

    >>Can I use any better way without using OS mutex.
    Don't have multiple threads increment the variable?

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    Make sure the variable is volatile.

    If you just increment it in one place(thread), and read it in multiple places, then you don't need a mutex.

    Mutex won't help if you are interrupting the holder.

    >>Can I use any better way without using OS mutex.
    Don't have multiple threads increment the variable?

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