[개인 Homework] Tx에서 진동을 감지하여 Rx로 송신하기#4
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hepheir wants to merge 6 commits intosmu-202115064:mainfrom
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hepheir
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Oct 29, 2024
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| int didVibrate = 0; | ||
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| /* USER CODE END PV */ | ||
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| /* Private function prototypes -----------------------------------------------*/ | ||
| void SystemClock_Config(void); | ||
| static void MX_GPIO_Init(void); | ||
| static void MX_USART2_UART_Init(void); | ||
| static void MX_TIM2_Init(void); | ||
| /* USER CODE BEGIN PFP */ | ||
| int __io_putchar(int ch) | ||
| { | ||
| HAL_UART_Transmit(&huart2, (uint8_t *)&ch, 1, HAL_MAX_DELAY); | ||
| return ch; | ||
| } | ||
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| void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) | ||
| { | ||
| printf("Vib : %d \n\r", didVibrate); | ||
| didVibrate = 0; | ||
| } |
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타이머 인터럽트(1초 주기)에서 didVibrate값을 읽어와 출력한다.
didVibrate는 마지막 출력 이후로 부터 1번이라도 진동이 감지되었으면 1로 set되어있다.
출력을 마친 후에는 didVibrate의 값을 clear한다.
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| /* Infinite loop */ | ||
| /* USER CODE BEGIN WHILE */ | ||
| while (1) | ||
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| /* USER CODE END WHILE */ | ||
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| /* Infinite loop */ | ||
| /* USER CODE BEGIN WHILE */ | ||
| while (1) | ||
| { | ||
| /* USER CODE END WHILE */ | ||
| didVibrate |= HAL_GPIO_ReadPin(vibrtion_transducer_GPIO_Port, vibrtion_transducer_Pin); | ||
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| /* USER CODE BEGIN 3 */ | ||
| } | ||
| /* USER CODE END 3 */ | ||
| /* USER CODE BEGIN 3 */ | ||
| } | ||
| /* USER CODE END 3 */ |
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메인 루프에서는 딜레이 없는 Polling 방식으로 진동 센서로 부터 진동이 감지되었는지를 검사한다.
진동이 감지되면 didVibrate를 1로 set한다.
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