57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/*
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blink Task
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*/
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/* Includes ----------------------------------------------------------------- */
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#include "task/user_task.h"
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/* USER INCLUDE BEGIN */
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#include "device/buzzer.h"
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#include <stdint.h>
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/* USER INCLUDE END */
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/* Private typedef ---------------------------------------------------------- */
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/* Private define ----------------------------------------------------------- */
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/* Private macro ------------------------------------------------------------ */
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/* Private variables -------------------------------------------------------- */
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/* USER STRUCT BEGIN */
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BUZZER_t buzzer;
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static uint16_t count;
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/* USER STRUCT END */
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/* Private function --------------------------------------------------------- */
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/* Exported functions ------------------------------------------------------- */
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void Task_blink(void *argument) {
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(void)argument; /* 未使用argument，消除警告 */
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/* 计算任务运行到指定频率需要等待的tick数 */
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const uint32_t delay_tick = osKernelGetTickFreq() / BLINK_FREQ;
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osDelay(BLINK_INIT_DELAY); /* 延时一段时间再开启任务 */
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uint32_t tick = osKernelGetTickCount(); /* 控制任务运行频率的计时 */
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/* USER CODE INIT BEGIN */
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/* 播放启动音乐 */
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BUZZER_Init(&buzzer, BSP_PWM_BUZZER);
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BUZZER_PlayMusic(&buzzer, MUSIC_RM);
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/* USER CODE INIT END */
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while (1) {
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tick += delay_tick; /* 计算下一个唤醒时刻 */
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/* USER CODE BEGIN */
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count++;
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uint16_t phase = count % 1000;
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if (phase == 0) {
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/* 每秒开始播放C4音符 */
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BUZZER_Set(&buzzer, 261.63f, 0.5f); // C4音符频率约261.63Hz
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BUZZER_Start(&buzzer);
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} else if (phase == 50) {
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/* 播放100ms后停止 (50/500Hz = 0.1s) */
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BUZZER_Stop(&buzzer);
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}
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/* USER CODE END */
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osDelayUntil(tick); /* 运行结束，等待下一次唤醒 */
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}
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} |