65 lines
1.3 KiB
C
65 lines
1.3 KiB
C
#include "buzzer.h"
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#include "timer.h"
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#define OFF 0
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#define ON 1
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#define ONCE 2
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static uint8_t state;
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static uint8_t loop_times;
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static uint16_t loop_interval;
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static uint16_t beep_time;
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inline void BUZZER_Start()
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{
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state = ON;
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HAL_GPIO_WritePin(FM_K2_POWERC_GPIO_Port, FM_K2_POWERC_Pin, GPIO_PIN_RESET);
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}
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inline void BUZZER_Stop()
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{
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HAL_GPIO_WritePin(FM_K2_POWERC_GPIO_Port, FM_K2_POWERC_Pin, GPIO_PIN_SET);
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if (state == ONCE)
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TIMER_DelLoopEvent(EVENT_BUZZER);
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state = OFF;
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}
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/// @brief 启动蜂鸣器鸣叫
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/// @param time 鸣叫时间，单位1毫秒
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void BUZZER_StartTimed(uint16_t time)
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{
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state = ONCE;
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BUZZER_Start();
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TIMER_AddLoopEvent(EVENT_BUZZER, BUZZER_Stop, time);
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}
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void BUZZER_Callback();
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void BUZZER_StartNTimes(uint8_t loop, uint16_t interval, uint16_t time)
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{
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loop_times = loop;
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loop_interval = interval;
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beep_time = time;
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BUZZER_Start();
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TIMER_AddLoopEvent(EVENT_BUZZER, BUZZER_Callback, time);
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}
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void BUZZER_Callback()
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{
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switch (state)
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{
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case ON:
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BUZZER_Stop();
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if (--loop_times)
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TIMER_AddLoopEvent(EVENT_BUZZER, BUZZER_Callback, loop_interval);
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else
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TIMER_DelLoopEvent(EVENT_BUZZER);
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break;
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case OFF:
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BUZZER_Start();
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TIMER_AddLoopEvent(EVENT_BUZZER, BUZZER_Callback, beep_time);
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break;
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}
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}
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