stm32 ADC12路采集DMA程序源码 -

标题: stm32 ADC12路采集DMA程序源码 [打印本页]

作者: lklk3 时间: 2018-11-21 17:38
标题: stm32 ADC12路采集DMA程序源码
这里配置一个ADC多路ADC同时触发的DMA程序，

ADC配置
ADC_DeInit(ADC1);                                                                                                                //复位ADC1,将外设 ADC1 的全部寄存器重设为缺省值

      ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;                                              //ADC工作模式:ADC1和ADC2工作在独立模式
      ADC_InitStructure.ADC_ScanConvMode = ENABLE;                                                       //模数转换工作在扫描模式
      ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;                                              //模数转换工作在连续转换模式
      ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;             //转换由软件而不是外部触发启动
      ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;                                     //ADC数据右对齐
      ADC_InitStructure.ADC_NbrOfChannel = N;                                                             //顺序进行规则转换的ADC通道的数目
      ADC_Init(ADC1, &ADC_InitStructure);

DMA配置

DMA_DeInit(DMA1_Channel1);                                                                                                                //将DMA的通道1寄存器重设为缺省值       DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&ADC1->DR;                                        //定义DMA外设基地址为ADC1       DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&ADC_RCVTab;                                        //定义DMA内存基地址       DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;                                                                //外设作为数据传输的来源       DMA_InitStructure.DMA_BufferSize = N*16;                                                                                        //定义指定DMA通道的DMA缓存的大小       DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;                               //外设地址寄存器不变       DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;                                                       //内存地址寄存器递增       DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;             //数据宽度为16位       DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;                               //数据宽度为16位       DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;                                                                         //工作在循环缓存模式       DMA_InitStructure.DMA_Priority = DMA_Priority_High;                                                             //DMA通道1拥有高优先级       DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;                                                                      //DMA通道1没有设置为内存到内存传输       DMA_Init(DMA1_Channel1, &DMA_InitStructure);

配置ADC转换顺序及周期
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 0, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 1, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 2, ADC_SampleTime_1Cycles5);             ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 3, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 4, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 5, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 6, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_7, 7, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 8, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 9, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 10, ADC_SampleTime_1Cycles5);       ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 11, ADC_SampleTime_1Cycles5);

stm32adc12路采集DMA.rar

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源代码

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