56 lines
1.9 KiB
C
56 lines
1.9 KiB
C
/*
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rc Task
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遥控器接收任务 - 处理DR16遥控器数据接收
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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/dr16.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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/* STM32H7: 整个DR16结构体放在DMA可访问的SRAM区域 */
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static DR16_t dr16 __attribute__((section(".dma_buffer"))) __attribute__((aligned(32)));
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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_rc(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() / RC_FREQ;
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osDelay(RC_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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/* 初始化DR16遥控器 */
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DR16_Init(&dr16);
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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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/* 启动DMA接收 */
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DR16_StartDmaRecv(&dr16);
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/* 等待DMA接收完成，超时时间20ms */
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if (DR16_WaitDmaCplt(20)) {
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/* DMA接收成功，解析数据 */
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DR16_ParseData(&dr16);
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} else {
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/* DMA接收超时，标记离线 */
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DR16_Offline(&dr16);
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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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} |