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Overwrite weak Systick_handler function

nmcq

Hi all,

I want to overwrite the weak systick_handler function for a stm32f745 chip - it is labeled as weak in the Src\startup_stm32f745xx.s(258) :                 EXPORT  SysTick_Handler            [WEAK] 

startup file, but when I try to overwrite it anywhere else 

(using the extern "C" configuration)

I get this: Error: L6200E: Symbol SysTick_Handler multiply defined (by irq_cm4f.o and gpio_base.o)

NOTE: I cannot edit the startup file, it is locked to my project. 

Am I missing something else?

Thanks,

nmcq

Parents
  • 0 in reply to Robert McNamara

    Mm yes I see - yeah I'd rather not mess with it until I actually know what I'm doing with it. I assume that this would occur then for any weak function that STM provides. How are we supposed to overwrite those functions then? Supposedly we should be able to, but then we would constantly get impeded by this.

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  • 0 in reply to Robert McNamara

    Mm yes I see - yeah I'd rather not mess with it until I actually know what I'm doing with it. I assume that this would occur then for any weak function that STM provides. How are we supposed to overwrite those functions then? Supposedly we should be able to, but then we would constantly get impeded by this.

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