51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
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/**
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* @file Timer.cpp
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* @brief 用户调度定时器模块实现。
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*/
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#include "main.h"
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#include "device/Timer.h"
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#include "sys/task_manager.h"
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#include "sys/config.h"
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void SchedulerTimer::configureTimer()
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{
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timer_parameter_struct timer_initpara;
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rcu_periph_clock_enable(CONFIG_SCHED_TIMER_RCU);
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timer_deinit(CONFIG_SCHED_TIMER_INSTANCE);
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timer_struct_para_init(&timer_initpara);
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timer_initpara.prescaler = CONFIG_SCHED_TIMER_PRESCALER;
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timer_initpara.alignedmode = TIMER_COUNTER_EDGE;
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timer_initpara.counterdirection = TIMER_COUNTER_UP;
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timer_initpara.period = CONFIG_SCHED_TIMER_PERIOD;
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timer_initpara.clockdivision = TIMER_CKDIV_DIV1;
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timer_init(CONFIG_SCHED_TIMER_INSTANCE, &timer_initpara);
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timer_interrupt_flag_clear(CONFIG_SCHED_TIMER_INSTANCE, TIMER_INT_FLAG_UP);
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timer_interrupt_enable(CONFIG_SCHED_TIMER_INSTANCE, TIMER_INT_UP);
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timer_enable(CONFIG_SCHED_TIMER_INSTANCE);
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}
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void SchedulerTimer::configureNvic()
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{
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nvic_priority_group_set(NVIC_PRIGROUP_PRE2_SUB2);
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nvic_irq_enable(CONFIG_SCHED_TIMER_IRQn, CONFIG_SCHED_TIMER_IRQ_PREEMPT_PRIO, CONFIG_SCHED_TIMER_IRQ_SUB_PRIO);
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}
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void SchedulerTimer::init()
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{
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configureTimer();
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configureNvic();
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}
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void SchedulerTimer::onInterrupt()
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{
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if(timer_interrupt_flag_get(CONFIG_SCHED_TIMER_INSTANCE, TIMER_INT_FLAG_UP) == RESET) return;
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timer_interrupt_flag_clear(CONFIG_SCHED_TIMER_INSTANCE, TIMER_INT_FLAG_UP);
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TaskManager::tick100us();
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}
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/* ----- 中断入口 C 包装 ---------------------------------------------- */
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void TIMER2_IRQHandler(void) { SchedulerTimer::onInterrupt(); }
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