Hi all,
I tried to configure STM8AF62Ax's TIM1 in center-aligned mode to generate 1kHz PWM output.
Also I'd like to generate a 2kHz interrupt by both overflow and underflow update event in TIM1.
Now I can measure PWM patterns on scope, but the interrupt routine "TIM1_UPD_OVF_TRG_BRK_IRQHandler" is not being executed (not even once).
I'm using STM8S standard peripheral libraries. The following function shows how I initiate TIM1.
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void TIM1_Config(void)
{
TIM1_DeInit();
TIM1_TimeBaseInit(15, TIM1_COUNTERMODE_CENTERALIGNED1, 499, 0);
TIM1_ARRPreloadConfig(ENABLE);
TIM1_OC1Init(TIM1_OCMODE_PWM1,TIM1_OUTPUTSTATE_ENABLE, TIM1_OUTPUTNSTATE_DISABLE, 249, TIM1_OCPOLARITY_HIGH, TIM1_OCNPOLARITY_LOW, TIM1_OCIDLESTATE_SET, TIM1_OCNIDLESTATE_RESET);
TIM1_GenerateEvent(TIM1_EVENTSOURCE_UPDATE);
TIM1_UpdateDisableConfig(DISABLE);
TIM1_UpdateRequestConfig(TIM1_UPDATESOURCE_GLOBAL);
TIM1_ITConfig(TIM1_IT_UPDATE, ENABLE);
TIM1_Cmd(ENABLE);
}
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And I do have the function "TIM1_ClearITPendingBit" at the end of interrupt routine.
I cannot figure out why "TIM1_UPD_OVF_TRG_BRK_IRQHandler" is not being executed.
Can anyone tell if I miss some settings that is necessary for generating update interrupt ?
Thanks a lot for your kind assistance.
