[问答]

如何去测量STM32 Nucleo-L452RE上的内部温度传感器呢

问答对人有帮助，内容完整，我也想知道答案 0 我一直在测试 STM32 Nucleo-L452RE 上的内部温度传感器。因此，我使用内部 Macors 以及自建函数来计算温度。两者产生相同的值，因此具有大约 -6°C 的相同恒定负偏移。偏移出现在 -40°C 至 85°C 的整个温度范围内。我已经用其他几个传感器验证了气候室中设置的温度。我已经检查了我能想到的一切。也许你们中的一些人可以发现我在代码中一直犯的错误，这解释了奇怪的行为。 #include "main.h" #include #include ADC_HandleTypeDef hadc1; UART_HandleTypeDef huart2; void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_USART2_UART_Init(void); static void MX_ADC1_Init(void); #define TEMP_CAL2 110 #define TEMP_CAL1 30 #define TS_CAL1 ((uint16_t) (0x1FFF75A8UL)) #define TS_CAL2 ((uint16_t) (0x1FFF75CAUL)) #define VREFINTCAL ((uint16_t)(0x1FFF75AAUL)) int ADCstep_temp=0; int ADCstep_VBAT=0; int ADCstep_VREF=0; float tempf=0; int tempi=0; float VAPLI=3.475; float VCALIB=3.00; float VBAT=0; float VREF=0; int inc=0; static void select_ADC_VBAT(void) { ADC_ChannelConfTypeDef sConfig = {0}; sConfig.Channel = ADC_CHANNEL_VBAT; sConfig.Rank = ADC_REGULAR_RANK_1; if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { Error_Handler(); } } static void select_ADC_VREFINT(void) { ADC_ChannelConfTypeDef sConfig = {0}; sConfig.Channel = ADC_CHANNEL_VREFINT; sConfig.Rank = ADC_REGULAR_RANK_1; if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { Error_Handler(); } } static void select_ADC_TEMP(void) { ADC_ChannelConfTypeDef sConfig = {0}; sConfig.Channel = ADC_CHANNEL_TEMPSENSOR; sConfig.Rank = ADC_REGULAR_RANK_1; if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { Error_Handler(); } } void temp_meas(int inc) { HAL_GPIO_TogglePin (GPIOA, GPIO_PIN_5); HAL_Delay (100); / Insert delay 100 ms / select_ADC_TEMP(); HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1, ADC_TEMPSENSOR_DELAY_US); // Poll ADC1 Perihperal & TimeOut = 1mSec ADCstep_temp=HAL_ADC_GetValue(&hadc1); // Read The ADC Conversion Result & Map It To PWM DutyCycle HAL_ADC_Stop(&hadc1); select_ADC_VBAT(); HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1, ADC_TEMPSENSOR_DELAY_US); // Poll ADC1 Perihperal & TimeOut = 1mSec ADCstep_VBAT=HAL_ADC_GetValue(&hadc1); // Read The ADC Conversion Result & Map It To PWM DutyCycle HAL_ADC_Stop(&hadc1); select_ADC_VREFINT(); HAL_ADC_Start(&hadc1); HAL_ADC_PollForConversion(&hadc1, ADC_TEMPSENSOR_DELAY_US); // Poll ADC1 Perihperal & TimeOut = 1mSec ADCstep_VREF=HAL_ADC_GetValue(&hadc1); // Read The ADC Conversion Result & Map It To PWM DutyCycle HAL_ADC_Stop(&hadc1); // VREF VREF =3(float)((int32_t) (VREFINTCAL))/ADCstep_VREF; // VBAT VBAT =3VREFADCstep_VBAT/4096;//Divider by 3 float TC1=(float)((int32_t) (TS_CAL1)); float TC2=(float)((int32_t) (TS_CAL2)); tempf = ((float)TEMP_CAL2-(float)TEMP_CAL1) / (TC2 - TC1) (ADCstep_tempVREF/VCALIB - TC1) + 30.0F; tempi= __LL_ADC_CALC_TEMPERATURE(VREF,ADCstep_temp,ADC_RESOLUTION12b); HAL_Delay(1000); } int main(void) { / MCU Configuration--------------------------------------------------------/ / Reset of all peripherals, Initializes the Flash interface and the Systick. / HAL_Init(); / Configure the system clock / SystemClock_Config(); / Initialize all configured peripherals / MX_GPIO_Init(); MX_USART2_UART_Init(); MX_ADC1_Init(); while (1) { temp_meas(inc); inc+=1; } } /* * @brief System Clock Configuration * @retval None / void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0}; /* Configure the main internal regulator output voltage / if (HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1) != HAL_OK) { Error_Handler(); } /* Configure LSE Drive Capability / HAL_PWR_EnableBkUpAccess(); __HAL_RCC_LSEDRIVE_CONFIG(RCC_LSEDRIVE_LOW); /* Initializes the RCC Oscillators according to the specified parameters * in the RCC_OscInitTypeDef structure. / RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE\|RCC_OSCILLATORTYPE_MSI; RCC_OscInitStruct.LSEState = RCC_LSE_ON; RCC_OscInitStruct.MSIState = RCC_MSI_ON; RCC_OscInitStruct.MSICalibrationValue = 0; RCC_OscInitStruct.MSIClockRange = RCC_MSIRANGE_6; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); } /* Initializes the CPU, AHB and APB buses clocks / RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK\|RCC_CLOCKTYPE_SYSCLK \|RCC_CLOCKTYPE_PCLK1\|RCC_CLOCKTYPE_PCLK2; RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_MSI; RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1; RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1; RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK) { Error_Handler(); } /* Enable MSI Auto calibration / HAL_RCCEx_EnableMSIPLLMode(); } /* * @brief ADC1 Initialization Function * @param None * @retval None / static void MX_ADC1_Init(void) { / USER CODE BEGIN ADC1_Init 0 / / USER CODE END ADC1_Init 0 / ADC_ChannelConfTypeDef sConfig = {0}; / USER CODE BEGIN ADC1_Init 1 / / USER CODE END ADC1_Init 1 / /* Common config / hadc1.Instance = ADC1; hadc1.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV4; hadc1.Init.Resolution = ADC_RESOLUTION_12B; hadc1.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc1.Init.ScanConvMode = ADC_SCAN_ENABLE; hadc1.Init.EOCSelection = ADC_EOC_SINGLE_CONV; hadc1.Init.LowPowerAutoWait = DISABLE; hadc1.Init.ContinuousConvMode = DISABLE; hadc1.Init.NbrOfConversion = 1; hadc1.Init.DiscontinuousConvMode = DISABLE; hadc1.Init.ExternalTrigConv = ADC_SOFTWARE_START; hadc1.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; hadc1.Init.DMAContinuousRequests = DISABLE; hadc1.Init.Overrun = ADC_OVR_DATA_PRESERVED; hadc1.Init.OversamplingMode = DISABLE; if (HAL_ADC_Init(&hadc1) != HAL_OK) { Error_Handler(); } /* Configure Regular Channel / sConfig.Channel = ADC_CHANNEL_TEMPSENSOR; sConfig.Rank = ADC_REGULAR_RANK_1; sConfig.SamplingTime = ADC_SAMPLETIME_640CYCLES_5; sConfig.SingleDiff = ADC_SINGLE_ENDED; sConfig.OffsetNumber = ADC_OFFSET_NONE; sConfig.Offset = 0; if (HAL_ADC_ConfigChannel(&hadc1, &sConfig) != HAL_OK) { Error_Handler(); } } /* * @brief USART2 Initialization Function * @param None * @retval None / static void MX_USART2_UART_Init(void) { / USER CODE BEGIN USART2_Init 0 / / USER CODE END USART2_Init 0 / / USER CODE BEGIN USART2_Init 1 / / USER CODE END USART2_Init 1 / huart2.Instance = USART2; huart2.Init.BaudRate = 115200; huart2.Init.WordLength = UART_WORDLENGTH_8B; huart2.Init.StopBits = UART_STOPBITS_1; huart2.Init.Parity = UART_PARITY_NONE; huart2.Init.Mode = UART_MODE_TX_RX; huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE; huart2.Init.OverSampling = UART_OVERSAMPLING_16; huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE; huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT; if (HAL_UART_Init(&huart2) != HAL_OK) { Error_Handler(); } / USER CODE BEGIN USART2_Init 2 / / USER CODE END USART2_Init 2 / } /* * @brief GPIO Initialization Function * @param None * @retval None / static void MX_GPIO_Init(void) { GPIO_InitTypeDef GPIO_InitStruct = {0}; / GPIO Ports Clock Enable / __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOH_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); /Configure GPIO pin Output Level / HAL_GPIO_WritePin(LD4_GPIO_Port, LD4_Pin, GPIO_PIN_RESET); /Configure GPIO pin : B1_Pin / GPIO_InitStruct.Pin = B1_Pin; GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct); /Configure GPIO pin : LD4_Pin */ GPIO_InitStruct.Pin = LD4_Pin; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; HAL_GPIO_Init(LD4_GPIO_Port, &GPIO_InitStruct); } ... 0
2022-12-12 08:17:04　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × wang21cj 该类别下有 44 个回答。邀请回答新星之火12138 该类别下有 41 个回答。邀请回答 chm5 该类别下有 39 个回答。邀请回答 hgimtk 该类别下有 33 个回答。邀请回答 HengDu 该类别下有 30 个回答。邀请回答 hwp0415229 该类别下有 28 个回答。邀请回答 jghgfdssas 该类别下有 28 个回答。邀请回答 kingnet6688 该类别下有 26 个回答。邀请回答颜刚YanG 该类别下有 26 个回答。邀请回答可口可甜该类别下有 26 个回答。邀请回答柱子图宁该类别下有 25 个回答。邀请回答 jenny042 该类别下有 25 个回答。邀请回答 kingnet9999 该类别下有 25 个回答。邀请回答 andyfly7 该类别下有 25 个回答。邀请回答麻酱该类别下有 25 个回答。邀请回答 zyh34997 该类别下有 25 个回答。邀请回答哼小曲该类别下有 24 个回答。邀请回答云汉007 该类别下有 24 个回答。邀请回答 ggfvxv 该类别下有 24 个回答。邀请回答 heks 该类别下有 24 个回答。邀请回答举报费加罗相关推荐 • 在NUCLEO-L452RE上配置STM32L452RE时，HSI16时钟速度会有所不同怎么处理？ 149 • 如何构建STM32L452RE的差分升级能力？ 5246 • STM32内部温度传感器参数 2496 • STM32内部温度传感器有哪些使用注意事项呢 2076 • 如何验证STM32L452的低功耗是多少？ 193 • 请问STM32CubeIDE支持带有L452RE的STM32Nucleo吗？ 175 • 如何用ADC测量内部温度传感器的值并用DMA方式传输呢 2354 • 使用stm32l152re与传感器中的温度/湿度传感器进行通信的问题求解 148 • 如何通过ADC采集内部温度传感器通道电压得出MCU内部温度？ 2174 • 怎样使用温度传感器和ADC去测量芯片的工作温度呢 1487 1个回答

答案对人有帮助，有参考价值 0 尝试在 main 开始时进行校准： HAL_ADCEx_Calibration_Start(&hadc1, ADC_SINGLE_ENDED);

2022-12-12 13:45:36 评论举报杨逊咏