Re: [Sdcc-user] STM8 interrupt example ?

[Травкин Роман]

Typical interrupt is "void HandlerName() __interrupt(n)", where n -- interrupt number according to chip datasheet. Handler name could be anything you want. For trap interrupt use "void HandlerName() _trap".

 

void TIM4_OVF_handler() __interrupt(23)

{

    

  TIM4->SR1 &= ~TIM4_SR1_UIF;   // Reset flag as RM0016 states

 

    ms_cnt++;

}

 

void TIM1_OVF_UPD_TRG_handler() __interrupt(11)

{

    

    TIM1->SR1 &= ~TIM1_SR1_UIF; // Reset flag as RM0016 states

  tim1_ovf_num++;

}

 

void TIM2_OVF_UPD_handler() __interrupt(13)

{

    

    TIM2->SR1 &= ~TIM2_SR1_UIF; // Reset flag as RM0016 states

  tim2_ovf_num++;

}

 

22.01.2017, 14:56, "aarrgghh.co.uk" <aarrg...@aarrgghh.co.uk>:

Are there any concise SDCC examples of interrupt handling for the STM8?
I'm particularly interested in the STM8003F3 however anything for that
family of processors will help.

There are excellent general examples on colecovision that have all the
code in a single file which makes understanding what is going on very
clear.
http://www.colecovision.eu/stm8/

These have helped me get going but none of them cover an interrupt and I
am struggling to get a basic timer 1 interrupt call working or even
compiling as I don't know if the error is in incorrect use of registers
or general SDCC syntax or my C coding.
I don't really want to flood the place with derpy Questions if I can
avoid it.

Regards
Russ

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