In main():
Interrupt:
Doesn't matter what send_char is doing - it's never executed, and breakpoints placed in interrupt never hit.
And here I have another timer with interrupt, it's almost the same, except this one works:
In main():
Interrupt:
Is there some conflict, when you can't use timer 1 with something other? Because I know when I try to use timer 2, then USART doesn't work.
Code:
TIM_TimeBaseStructInit(&tim3);
tim3.TIM_Period = 10 - 1;
tim3.TIM_Prescaler = 64 - 1;
tim3.TIM_ClockDivision = 0;
tim3.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM1, &tim3);
TIM_ITConfig(TIM1, TIM_IT_Update, ENABLE);
TIM_Cmd(TIM1, ENABLE);
nvic.NVIC_IRQChannel = TIM1_UP_IRQn;
nvic.NVIC_IRQChannelPreemptionPriority = 0;
nvic.NVIC_IRQChannelSubPriority = 0;
nvic.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&nvic);
Code:
void TIM1_UP_IRQHandler()
{
if (TIM_GetITStatus(TIM1, TIM_IT_Update) != RESET)
{
send_char('k');
}
}And here I have another timer with interrupt, it's almost the same, except this one works:
In main():
Code:
TIM_TimeBaseStructInit(&tim2);
tim2.TIM_CounterMode = TIM_CounterMode_Up;
tim2.TIM_Prescaler = 64000 - 1;
tim2.TIM_Period = 100;
TIM_TimeBaseInit(TIM3, &tim2);
TIM_Cmd(TIM3, ENABLE);
nvic.NVIC_IRQChannel = TIM3_IRQn;
nvic.NVIC_IRQChannelPreemptionPriority = 0;
nvic.NVIC_IRQChannelSubPriority = 0;
nvic.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&nvic);
Code:
void TIM3_IRQHandler() {
if (TIM_GetITStatus(TIM3, TIM_IT_Update) == SET) {
TIM_ClearITPendingBit(TIM3, TIM_IT_Update);
pwm(0);
TIM_ITConfig(TIM3, TIM_IT_Update, DISABLE);
send_char('t');
flag = 1;
}
}
