下载：music_player
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本工程由nucleistudio建立，连接蜂鸣器引脚为PA8，具体代码见附件。
#include "beep.h"void beep_init(void){ timer_oc_parameter_struct oc_para; timer_parameter_struct init_para; //rcu_periph_clock_enable(RCU_GPIOA | RCU_AF | RCU_TIMER0); rcu_periph_clock_enable(RCU_GPIOA); rcu_periph_clock_enable(RCU_AF); rcu_periph_clock_enable(RCU_TIMER0); oc_para.outputstate = TIMER_CCX_ENABLE; oc_para.outputnstate = TIMER_CCXN_DISABLE; oc_para.ocpolarity = TIMER_OC_POLARITY_HIGH; oc_para.ocnpolarity = TIMER_OCN_POLARITY_HIGH; oc_para.ocidlestate = TIMER_OC_IDLE_STATE_LOW; oc_para.ocnidlestate = TIMER_OCN_IDLE_STATE_LOW; init_para.prescaler = 107U; init_para.alignedmode = TIMER_COUNTER_EDGE; init_para.counterdirection = TIMER_COUNTER_UP; init_para.period = 100U; init_para.clockdivision = TIMER_CKDIV_DIV1; init_para.repetitioncounter = 0U; timer_init(TIMER0, &init_para); timer_channel_output_config(TIMER0, TIMER_CH_0, &oc_para); timer_channel_output_mode_config(TIMER0, TIMER_CH_0, TIMER_OC_MODE_PWM0); timer_primary_output_config(TIMER0, ENABLE); timer_auto_reload_shadow_enable(TIMER0); gpio_init(GPIOA, GPIO_MODE_AF_PP, GPIO_OSPEED_50MHZ, GPIO_PIN_8);}void beep_on(void){ timer_enable(TIMER0);}void beep_off(void){ timer_disable(TIMER0);}void beep_set(uint16_t freq, uint8_t volume){ uint32_t period,pulse; period = 1000000 / freq; pulse = period - period / 100 * volume; timer_autoreload_value_config(TIMER0, period - 1); timer_channel_output_pulse_value_config(TIMER0, TIMER_CH_0, pulse);}#include "nuclei_sdk_soc.h"#include #include "gd32vf103v_rvstar.h"#include "beep.h"#include "decode.h"#define THREAD_PRIORITY 2#define THREAD_STACK_SIZE 512#define THREAD_TIMESLICE 5static rt_uint8_t thread_stack[THREAD_STACK_SIZE];static struct rt_thread tid;/* Thread demo */int thread_led(void){ gd_led_init(LED1); gd_led_init(LED2); gd_led_init(LED3); while(1) { gd_led_toggle(LED1); gd_led_toggle(LED2); gd_led_toggle(LED3); rt_thread_mdelay(1000); } return 0;}const struct beep_song song1 ={ .name = "两只老虎", .data = { 0x15, 0x02, 0x16, 0x02, 0x17, 0x02, 0x15, 0x02, 0x15, 0x02, 0x16, 0x02, 0x17, 0x02, 0x15, 0x02, 0x17, 0x02, 0x18, 0x02, 0x19, 0x01, 0x17, 0x02, 0x18, 0x02, 0x19, 0x01, 0x19, 0x03, 0x1A, 0x03, 0x19, 0x03, 0x18, 0x03, 0x17, 0x02, 0x15, 0x16, 0x19, 0x03, 0x1A, 0x03, 0x19, 0x03, 0x18, 0x03, 0x17, 0x02, 0x15, 0x16, 0x15, 0x02, 0x0F, 0x02, 0x15, 0x01, 0x15, 0x02, 0x0F, 0x02, 0x15, 0x01, 0x00, 0x00 }};int main(void){ struct beep_song_data data; int len, i = 0; char name[20]; rt_thread_init(&tid, "thread", thread_led, NULL, thread_stack, THREAD_STACK_SIZE, THREAD_PRIORITY, THREAD_TIMESLICE); rt_thread_startup(&tid); beep_init(); beep_song_decode_init(); beep_song_get_name(&song1, name); rt_kprintf("正在播放：%sn",name); len = beep_song_get_len(&song1); while (i < len) { /* 解码音乐数据 */ beep_song_get_data(&song1, i, &data); beep_set(data.freq, 3); beep_on(); rt_thread_mdelay(data.sound_len); beep_off(); rt_thread_mdelay(data.nosound_len); i++; }}
参考链接：https://www.rt-thread.org/document/site/tutorial/beep-player/
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