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32 lines
1.0 KiB
32 lines
1.0 KiB
3 weeks ago
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static void timer_init(TIM_TypeDef *TIM, int psc) {
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register_set(&(TIM->PSC), (psc-1), 0xFFFFU);
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register_set(&(TIM->DIER), TIM_DIER_UIE, 0x5F5FU);
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register_set(&(TIM->CR1), TIM_CR1_CEN, 0x3FU);
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TIM->SR = 0;
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}
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void microsecond_timer_init(void) {
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MICROSECOND_TIMER->PSC = (APB1_TIMER_FREQ - 1U);
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MICROSECOND_TIMER->CR1 = TIM_CR1_CEN;
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MICROSECOND_TIMER->EGR = TIM_EGR_UG;
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}
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uint32_t microsecond_timer_get(void) {
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return MICROSECOND_TIMER->CNT;
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}
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void interrupt_timer_init(void) {
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enable_interrupt_timer();
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REGISTER_INTERRUPT(INTERRUPT_TIMER_IRQ, interrupt_timer_handler, 2U, FAULT_INTERRUPT_RATE_INTERRUPTS)
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register_set(&(INTERRUPT_TIMER->PSC), ((uint16_t)(15.25*APB1_TIMER_FREQ)-1U), 0xFFFFU);
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register_set(&(INTERRUPT_TIMER->DIER), TIM_DIER_UIE, 0x5F5FU);
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register_set(&(INTERRUPT_TIMER->CR1), TIM_CR1_CEN, 0x3FU);
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INTERRUPT_TIMER->SR = 0;
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NVIC_EnableIRQ(INTERRUPT_TIMER_IRQ);
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}
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void tick_timer_init(void) {
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timer_init(TICK_TIMER, (uint16_t)((15.25*APB2_TIMER_FREQ)/8U));
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NVIC_EnableIRQ(TICK_TIMER_IRQ);
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}
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