31 lines
1.4 KiB
C
31 lines
1.4 KiB
C
/* Includes ----------------------------------------------------------------- */
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#include "task\user_task.h"
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#include "usart.h"
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#include "bsp\led.h"
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#include <string.h> // 用于 sprintf 函数
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/* Private variables -------------------------------------------------------- */
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float distance = 14.0f; // 用于存储距离数据单位为米
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// char distance_str[32]; // 用于存储格式化后的字符串
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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() / 100; // 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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BSP_LED_Set(BSP_LED_BLUE, BSP_LED_TAGGLE, 0); // 50% 占空比
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// 将 distance 格式化为字符串
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// sprintf(distance_str, "Distance: %.2f m\r\n", distance);
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//使用串口发送"123"
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// HAL_UART_Transmit(&huart2, (uint8_t *)distance_str, strlen(distance_str), 1000); // 发送数据
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// HAL_UART_Transmit(&huart3, (uint8_t *)distance_str, strlen(distance_str), 1000); // 发送数据
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HAL_UART_Transmit_DMA(&huart2, (uint8_t *)"123", 3); // 发送数据
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HAL_UART_Transmit_DMA(&huart3, (uint8_t *)"123", 3); // 发送数据
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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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} |