69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
//
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// Created by Luca on 8/28/2025.
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//
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#include "SHAL_TIM.h"
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#include <cassert>
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Timer::Timer(Timer_Key key) : m_key(key){
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}
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Timer::Timer() : m_key(Timer_Key::S_TIM_INVALID){
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}
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void Timer::start() {
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auto control_reg = getTimerControlRegister1(m_key);
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auto event_generation_reg = getTimerEventGenerationRegister(m_key);
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SHAL_apply_bitmask(control_reg.reg, control_reg.counter_enable_mask); //Enable counter
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SHAL_apply_bitmask(event_generation_reg.reg, event_generation_reg.update_generation_mask);
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enableInterrupt();
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}
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void Timer::stop() {
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getTimerRegister(TIMER_KEY)->CR1 &= ~TIM_CR1_CEN;
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}
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void Timer::setPrescaler(uint16_t presc) {
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getTimerRegister(TIMER_KEY)->PSC = presc;
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}
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void Timer::setARR(uint16_t arr) {
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getTimerRegister(TIMER_KEY)->ARR = arr;
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}
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void Timer::enableInterrupt() {
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getTimerRegister(TIMER_KEY)->DIER |= TIM_DIER_UIE;
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NVIC_EnableIRQ(getTimerIRQn(TIMER_KEY));
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}
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void Timer::init(uint32_t prescaler, uint32_t autoReload) {
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TIM_RCC_Enable rcc = getTimerRCC(TIMER_KEY);
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*rcc.busEnableReg |= (1 << rcc.offset);
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setPrescaler(prescaler);
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setARR(autoReload);
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}
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Timer &TimerManager::get(Timer_Key timer_key) {
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//Ensure that we don't try to get invalid timers
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assert(timer_key != Timer_Key::S_TIM_INVALID && timer_key != Timer_Key::NUM_TIMERS);
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Timer& selected = timers[static_cast<int>(timer_key)];
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//Timer queried is not initialized yet (defaults to invalid)
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if(selected.TIMER_KEY == Timer_Key::S_TIM_INVALID){
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timers[static_cast<int>(timer_key)] = Timer(timer_key); //Initialize TIMER_KEY
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}
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return timers[static_cast<int>(timer_key)];
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}
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