stm32에서 sds011 미세먼지 센서를 uart로 연결시켜서 데이터를 읽어오게하려는데

데이터를 1개도 못가져오고 있습니다

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처음에서는 dma같은걸로 했는데

data header는 0xAA, data tail는 0xAB가 되야하는데 둘다 안나와서요

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인터넷를 좀더 찾아봐서 예시 프로젝트 내용을 가져와서 하는데

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receive로 데이터를 못가져오는지 data_receive에 아무것도 안나오고 있습니다 이걸 어떻게 해야하나요?

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뭐가 문제인데 receive도 안되는건지 알아야 뭐 수정을하는데

  sdsInit(&sds, &huart8); 부분에서는 반응이 있어서 huart_sds에 huart8이 나오는데 수신 데이터 나오는 곳에는 0x00만 있는걸 보면 수신자체가 안되고 있는거 같습니다



일단 미세먼지 센서의 팬?이 돌아가고 있는거 같고 전압도 출력이 나오고 있습니다

sds011.c, sds011.h는 그대로 쓰고 있습니다

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sds011 datasheet : https://cdn-reichelt.de/documents/datenblatt/X200/SDS011-DATASHEET.pdf

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example : https://github.com/SimpleMethod/STM32-SDS011

[code]

SDS sds; uint8_t DUST_Data[50]; uint16_t dust_size = 0; int main(void) { /* USER CODE BEGIN 1 */ /* USER CODE END 1 */ /* MPU Configuration--------------------------------------------------------*/ MPU_Config(); /* Enable I-Cache---------------------------------------------------------*/ SCB_EnableICache(); /* Enable D-Cache---------------------------------------------------------*/ SCB_EnableDCache(); /* MCU Configuration--------------------------------------------------------*/ /* Reset of all peripherals, Initializes the Flash interface and the Systick. */ HAL_Init(); /* USER CODE BEGIN Init */ /* USER CODE END Init */ /* Configure the system clock */ SystemClock_Config(); /* USER CODE BEGIN SysInit */ /* USER CODE END SysInit */ /* Initialize all configured peripherals */ MX_GPIO_Init(); MX_DMA_Init(); MX_TIM6_Init(); MX_UART7_Init(); MX_USART3_UART_Init(); MX_UART5_Init(); MX_USART1_UART_Init(); MX_USART6_UART_Init(); MX_UART8_Init(); MX_SPI2_Init(); MX_SPI5_Init(); MX_I2C1_Init(); MX_RNG_Init(); MX_TIM3_Init(); MX_USB_OTG_FS_PCD_Init(); MX_RTC_Init(); MX_TIM7_Init(); MX_FMC_Init(); /* USER CODE BEGIN 2 */ HAL_UART_Receive_DMA(&huart3, (uint8_t*)RX_BUFFER3, RX_BUFFER3_SIZE); HAL_UART_Receive_DMA(&huart6, (uint8_t*)RX_BUFFER6, RX_BUFFER_SIZE); sdsInit(&sds, &huart8); /* USER CODE END 2 */ /* USER CODE BEGIN RTOS_MUTEX */ /* add mutexes, ... */ /* USER CODE END RTOS_MUTEX */ /* USER CODE BEGIN RTOS_SEMAPHORES */ /* add semaphores, ... */ /* USER CODE END RTOS_SEMAPHORES */ /* USER CODE BEGIN RTOS_TIMERS */ /* start timers, add new ones, ... */ /* USER CODE END RTOS_TIMERS */ /* USER CODE BEGIN RTOS_QUEUES */ /* add queues, ... */ HAL_TIM_Base_Start_IT(&htim6); HAL_TIM_Base_Start_IT(&htim7); /* USER CODE END RTOS_QUEUES */ /* Create the thread(s) */ /* definition and creation of defaultTask */ osThreadDef(defaultTask, StartDefaultTask, osPriorityNormal, 0, 256); defaultTaskHandle = osThreadCreate(osThread(defaultTask), NULL); /* definition and creation of TcpTask */ osThreadDef(TcpTask, Tcp_Task, osPriorityIdle, 0, 256); TcpTaskHandle = osThreadCreate(osThread(TcpTask), NULL); /* definition and creation of Usart3Task */ osThreadDef(Usart3Task, Usart3_Task, osPriorityIdle, 0, 256); Usart3TaskHandle = osThreadCreate(osThread(Usart3Task), NULL); /* definition and creation of Uart7Task */ osThreadDef(Uart7Task, Uart7_Task, osPriorityIdle, 0, 256); Uart7TaskHandle = osThreadCreate(osThread(Uart7Task), NULL); /* definition and creation of Uart5Task */ osThreadDef(Uart5Task, Uart5_Task, osPriorityIdle, 0, 256); Uart5TaskHandle = osThreadCreate(osThread(Uart5Task), NULL); /* USER CODE BEGIN RTOS_THREADS */ /* add threads, ... */ // HAL_UART_Transmit(&huart3,"START! READY!\r\n",13,0xFFFFFFFF); /* USER CODE END RTOS_THREADS */ /* Start scheduler */ osKernelStart(); /* We should never get here as control is now taken by the scheduler */ /* Infinite loop */ /* USER CODE BEGIN WHILE */ while (1) { /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } /* USER CODE END 3 */ }

//************** void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart){ sds_uart_RxCpltCallback(&sds,huart); }

//********************************** void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) { if(htim->Instance == TIM7) { dust_size = sprintf(DUST_Data, "%d %d \n\r", sdsGetPm2_5(&sds), sdsGetPm10(&sds)); HAL_UART_Transmit(&huart3, DUST_Data, dust_size, HAL_MAX_DELAY); } } 

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 sds011.c

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