24 lines
1004 B
C
24 lines
1004 B
C
/* Includes ----------------------------------------------------------------- */
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#include "task\user_task.h"
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// #include "device/pc.h"
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#include "usart.h"
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#include "bsp\led.h"
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/* Private variables -------------------------------------------------------- */
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float distance = 0.0f; // 用于存储距离数据单位为米
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/* Exported functions ------------------------------------------------------- */
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void Task_PC(void *argument) {
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(void)argument; // 消除未使用参数的警告
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const uint32_t delay_tick = osKernelGetTickFreq() / 50; // 50Hz
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uint32_t tick = osKernelGetTickCount(); /* 控制任务运行频率的计时 */
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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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if (osMessageQueueGet(task_runtime.msgq.pc, &distance, NULL, osWaitForever) == osOK) {
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HAL_UART_Transmit_DMA(&huart3, (uint8_t *)&distance, sizeof(distance)); // 发送数据
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}
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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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} |