118 lines
1.7 KiB
C
118 lines
1.7 KiB
C
#include "buzzer.h"
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void play_ones(uint16_t freq,uint8_t dutya)
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{
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/*
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TIM4->ARR = (uint32_t)((2000000/freq)-1);
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TIM4->CCR3 = (uint32_t)(((2000000/freq)-1)*((float)dutya/100));
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*/
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if(freq!=0)
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{
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buzzer_t;
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}else
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{
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buzzer_io(0);
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}
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}
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struct notes
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{
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uint16_t freq;
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uint8_t duty;
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uint16_t deley;
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struct notes *next_note;
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};
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struct notes *notes;
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void add_a_note(uint16_t freq,uint8_t duty,uint16_t deley)
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{
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struct notes* buff;
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buff = (struct notes*)malloc(sizeof(struct notes));
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if (buff != NULL)
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{
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buff->freq = freq;
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buff->duty = duty;
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buff->deley = deley;
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buff->next_note = NULL;
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if (notes == NULL)
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{
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notes = buff;
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}
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else
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{
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struct notes *t = notes;
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while (t->next_note != NULL)
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{
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t = t->next_note;
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}
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t->next_note = buff;
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}
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}
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}
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void delhead()
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{
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if (notes == NULL)
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{
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return;
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}
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if (notes->next_note == NULL)
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{
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free(notes);
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notes = NULL;
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}
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else
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{
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struct notes *t = notes;
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notes = notes->next_note;
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free(t);
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}
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}
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char buzzer_play_server()
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{
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static char busy_flag=0;
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static uint32_t play_delay;
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if(notes == NULL)
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{
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play_ones(0,0);
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}else
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{
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if(busy_flag==0)
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{
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busy_flag=1;
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play_delay=HAL_GetTick()+notes->deley;
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}
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if(busy_flag==1)
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{
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if(HAL_GetTick()>play_delay)
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{
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busy_flag=0;
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delhead();
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}
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}
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play_ones(notes->freq,notes->duty);
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}
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return busy_flag;
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}
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void input_misue(const int *d,uint16_t len,uint8_t duty)
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{
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len=len/2;
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for(uint16_t a=0;a<len;a++)
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{
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add_a_note(d[a*2],duty,d[(a*2)+1]);
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//while(buzzer_play_server());
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}
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}
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