[问答]

STM32F030K6T6+CubeMX+DMA+AD无法读出电压值怎么解决？

问答对人有帮助，内容完整，我也想知道答案 0 利用CubeMX 6.3.0 生成AD读取程序无法取出寄存器值，一直为零应为IO不够用用的串口下载程序 ADC_HandleTypeDef hadc; DMA_HandleTypeDef hdma_adc; /* ADC init function / void MX_ADC_Init(void) { ADC_ChannelConfTypeDef sConfig = {0}; /* Configure the global features of the ADC (Clock, Resolution, Data Alignment and number of conversion) / hadc.Instance = ADC1; hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1; hadc.Init.Resolution = ADC_RESOLUTION_12B; hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_BACKWARD; hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV; hadc.Init.LowPowerAutoWait = ENABLE; hadc.Init.LowPowerAutoPowerOff = DISABLE; hadc.Init.ContinuousConvMode = ENABLE; hadc.Init.DiscontinuousConvMode = DISABLE; hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START; hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; hadc.Init.DMAContinuousRequests = ENABLE; hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED; if (HAL_ADC_Init( hadc) != HAL_OK) { Error_Handler(); } /* Configure for the selected ADC regular channel to be converted. / sConfig.Channel = ADC_CHANNEL_0; sConfig.Rank = ADC_RANK_CHANNEL_NUMBER; sConfig.SamplingTime = ADC_SAMPLETIME_71CYCLES_5; if (HAL_ADC_ConfigChannel( hadc, sConfig) != HAL_OK) { Error_Handler(); } /* Configure for the selected ADC regular channel to be converted. / sConfig.Channel = ADC_CHANNEL_1; if (HAL_ADC_ConfigChannel( hadc, sConfig) != HAL_OK) { Error_Handler(); } /* Configure for the selected ADC regular channel to be converted. / sConfig.Channel = ADC_CHANNEL_2; if (HAL_ADC_ConfigChannel( hadc, sConfig) != HAL_OK) { Error_Handler(); } / USER CODE BEGIN ADC_Init 2 / // ADC1->CFGR1 = (uint32_t)~ADC_CFGR1_DMACFG; // ADC1->CFGR1 \|= (uint32_t)ADC_CFGR1_DMACFG; / USER CODE END ADC_Init 2 / } void HAL_ADC_MspInit(ADC_HandleTypeDef adcHandle) { GPIO_InitTypeDef GPIO_InitStruct = {0}; if(adcHandle->Instance==ADC1) { /* USER CODE BEGIN ADC1_MspInit 0 / / USER CODE END ADC1_MspInit 0 / / ADC1 clock enable / __HAL_RCC_ADC1_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE(); /ADC GPIO Configuration PA0 ------> ADC_IN0 PA1 ------> ADC_IN1 PA2 ------> ADC_IN2 / GPIO_InitStruct.Pin = GPIO_PIN_0\|GPIO_PIN_1\|GPIO_PIN_2; GPIO_InitStruct.Mode = GPIO_MODE_ANALOG; GPIO_InitStruct.Pull = GPIO_NOPULL; HAL_GPIO_Init(GPIOA, GPIO_InitStruct); /* ADC1 DMA Init / / ADC Init / hdma_adc.Instance = DMA1_Channel1; hdma_adc.Init.Direction = DMA_PERIPH_TO_MEMORY; hdma_adc.Init.PeriphInc = DMA_PINC_DISABLE; hdma_adc.Init.MemInc = DMA_MINC_ENABLE; hdma_adc.Init.PeriphDataAlignment = DMA_PDATAALIGN_WORD; hdma_adc.Init.MemDataAlignment = DMA_MDATAALIGN_WORD; hdma_adc.Init.Mode = DMA_CIRCULAR; hdma_adc.Init.Priority = DMA_PRIORITY_LOW; if (HAL_DMA_Init( hdma_adc) != HAL_OK) { Error_Handler(); } __HAL_LINKDMA(adcHandle,DMA_Handle,hdma_adc); } } void HAL_ADC_MspDeInit(ADC_HandleTypeDef adcHandle) { if(adcHandle->Instance==ADC1) { /* USER CODE BEGIN ADC1_MspDeInit 0 / / USER CODE END ADC1_MspDeInit 0 / / Peripheral clock disable / __HAL_RCC_ADC1_CLK_DISABLE(); /ADC GPIO Configuration PA0 ------> ADC_IN0 PA1 ------> ADC_IN1 PA2 ------> ADC_IN2 / HAL_GPIO_DeInit(GPIOA, GPIO_PIN_0\|GPIO_PIN_1\|GPIO_PIN_2); /* ADC1 DMA DeInit / HAL_DMA_DeInit(adcHandle->DMA_Handle); / USER CODE BEGIN ADC1_MspDeInit 1 / / USER CODE END ADC1_MspDeInit 1 */ } } 还有初始化 HAL_ADCEx_Calibration_Start( hadc); HAL_Delay(100); HAL_ADC_Start_DMA( hadc, ADC_Value, 150); 处理函数 void read_V(void) { for(i=0,ad1=0,ad2=0,ad3=0; i<150;) { ad1 += ADC_Value[i++]; ad2 += ADC_Value[i++]; ad3 += ADC_Value[i++]; } ad1 /= 50; ad2 /= 50; ad3 /= 50; ChongDDY= ad1+ad2+ad3; } 0 本主题由 Harmony技术专家于 2024-3-29 16:57 审核通过
2024-3-29 07:58:48　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × heks 该类别下有 50 个回答。邀请回答 hgimtk 该类别下有 44 个回答。邀请回答新星之火12138 该类别下有 42 个回答。邀请回答 wang21cj 该类别下有 41 个回答。邀请回答 chm5 该类别下有 40 个回答。邀请回答 hjfjsdgfjdsf 该类别下有 37 个回答。邀请回答 uvysdfydad 该类别下有 35 个回答。邀请回答 fdjslkjd 该类别下有 35 个回答。邀请回答 werywer 该类别下有 35 个回答。邀请回答 h1654155957.9520 该类别下有 35 个回答。邀请回答 jenny042 该类别下有 34 个回答。邀请回答 dfzvzs 该类别下有 34 个回答。邀请回答维生素B2 该类别下有 34 个回答。邀请回答凤毛麟角该类别下有 34 个回答。邀请回答刘洋该类别下有 33 个回答。邀请回答 meihuacg 该类别下有 33 个回答。邀请回答 hfgdzc 该类别下有 33 个回答。邀请回答 ggfvxv 该类别下有 33 个回答。邀请回答 kpj3026 该类别下有 32 个回答。邀请回答江左盟该类别下有 32 个回答。邀请回答举报张英相关推荐 • 为什么要用XM1008K6T6芯片去替代STM32F030K6T6呢 1674 • STM32G030C6T6多ADC通道不工作是何原因呢 392 • stm32f030c6t6和f031c6t6有什么区别？ 367 • MM32F031K6T6产品特性介绍 2053 • STM32F030C8T6 CUBEMX Hal库SPI1 DMA发送完成标志怎么获取？ 166 • stm32f030c8的tim6及tim15怎么设置都不响应怎么解决？ 277 • 如何在Motor Control Workbench添加STM32F030K6 MCU？ 204 • 请问STM32F030R8T6内部校准过的值Embedded internal reference voltage可用来做校准吗？ 3876 • 如何使用cubemx+keil实现STM32G030C8T6串口调试？ 1746 • STM32f030k6 CRC配置错误怎么处理？ 255 1个回答

答案对人有帮助，有参考价值 0 如果基于CubeMx进行配置结合Cube库的话，应该可以很快实现该功能。我刚才也用F030开发板测试了OK. 代码比较简单,你可以参考下： uint32_t AdcData3]={0}; HAL_ADCEx_Calibration_Start( hadc);; HAL_ADC_Start_DMA( hadc, AdcData, 3); static void MX_ADC_Init(void) { ADC_ChannelConfTypeDef sConfig = {0}; hadc.Instance = ADC1; hadc.Init.ClockPrescaler = ADC_CLOCK_ASYNC_DIV1; hadc.Init.Resolution = ADC_RESOLUTION_12B; hadc.Init.DataAlign = ADC_DATAALIGN_RIGHT; hadc.Init.ScanConvMode = ADC_SCAN_DIRECTION_FORWARD; hadc.Init.EOCSelection = ADC_EOC_SINGLE_CONV; hadc.Init.LowPowerAutoWait = DISABLE; hadc.Init.LowPowerAutoPowerOff = DISABLE; hadc.Init.ContinuousConvMode = ENABLE; hadc.Init.DiscontinuousConvMode = DISABLE; hadc.Init.ExternalTrigConv = ADC_SOFTWARE_START; hadc.Init.ExternalTrigConvEdge = ADC_EXTERNALTRIGCONVEDGE_NONE; hadc.Init.DMAContinuousRequests = ENABLE; hadc.Init.Overrun = ADC_OVR_DATA_PRESERVED; if (HAL_ADC_Init( hadc) != HAL_OK) { Error_Handler(); } sConfig.Channel = ADC_CHANNEL_0; sConfig.Rank = ADC_RANK_CHANNEL_NUMBER; sConfig.SamplingTime = ADC_SAMPLETIME_55CYCLES_5; if (HAL_ADC_ConfigChannel( hadc, sConfig) != HAL_OK) { Error_Handler(); } sConfig.Channel = ADC_CHANNEL_1; if (HAL_ADC_ConfigChannel( hadc, sConfig) != HAL_OK) { Error_Handler(); } sConfig.Channel = ADC_CHANNEL_2; if (HAL_ADC_ConfigChannel( hadc, sConfig) != HAL_OK) { Error_Handler(); } } 另外，建议你检查下硬件，尤其电源以及VDDA脚的连接情况。

2024-3-29 16:50:22 评论举报云甫太