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MSafa
Visitor II
January 1, 2019
Question

Injected adc2 channel combined with regular channels adc1 dma stm32f103

  • January 1, 2019
  • 0 replies
  • 495 views

I have 7 adc channel must be measured. 4 channels are continuously measured by dma and adc 1, 3 of them are very important measured in special moment. I want to mesured this channels by injected channel adc2. my code for this as follow, but I can not mesured injected channels in adc2 and regular channels in adc1.

configuration of GPIO as follow:

void ADC1_GPIO_Config(void)
{
 GPIO_InitTypeDef GPIO_InitStructure; 
 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE); 
 RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE); 
 
 // GPIO Init for regular channels
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1;
 GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN; 
 GPIO_Init(GPIOA, &GPIO_InitStructure);
 
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3|GPIO_Pin_4;
 GPIO_Init(GPIOC, &GPIO_InitStructure);
 
 
 // GPIO Init for injected channels
 GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0|GPIO_Pin_1|GPIO_Pin_2;
 GPIO_Init(GPIOC, &GPIO_InitStructure);
}

and configuration of DMA is:

void DMA1_Mode_Config(void)
{
 DMA_InitTypeDef DMA_InitStructure;
 
 
 RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
 
 /* DMA channel1 configuration */
 DMA_DeInit(DMA1_Channel1);
 DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
 DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
 DMA_InitStructure.DMA_Priority = DMA_Priority_High;
 DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
 DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
 DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; 
 DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
 DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; 
 DMA_InitStructure.DMA_BufferSize = 4;
 DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)&ADC1->DR;;
 DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t) &ADC_ConvertedValue;
 DMA_Init(DMA1_Channel1, &DMA_InitStructure);
 
 DMA_Cmd(DMA1_Channel1, ENABLE);
}

configuration of ADC1 is:

void ADC1_Mode_Config(void)
{
 
 ADC_InitTypeDef ADC_InitStructure; 
 RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
 ADC_InitStructure.ADC_Mode = ADC_Mode_RegSimult; 
 ADC_InitStructure.ADC_ScanConvMode = ENABLE; 
 ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; 
 ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; 
 ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; 
 ADC_InitStructure.ADC_NbrOfChannel = 7; 
 ADC_Init(ADC1, &ADC_InitStructure); 
 
 ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_1Cycles5);
 ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 2, ADC_SampleTime_1Cycles5);
 ADC_RegularChannelConfig(ADC1, ADC_Channel_13,3, ADC_SampleTime_1Cycles5);
 ADC_RegularChannelConfig(ADC1,ADC_Channel_14, 4, ADC_SampleTime_1Cycles5);
 
 ADC_DMACmd(ADC1, ENABLE);
 ADC_Cmd(ADC1, ENABLE);
 ADC_ResetCalibration(ADC1);
 
 while(ADC_GetResetCalibrationStatus(ADC1));
 ADC_StartCalibration(ADC1);
 while(ADC_GetCalibrationStatus(ADC1));
 
 ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}
 
void ADC1_Init(void)
{
 ADC1_GPIO_Config();
 DMA1_Mode_Config();
 ADC1_Mode_Config();
 
}

and configuration of ADC2 is:

void ADC2_Init_MSS(void)
{
 
 ADC_InitTypeDef ADC_InitStructure; 
 
 
 RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC2, ENABLE);
 
 /* ADC2 configuration */
 ADC_InitStructure.ADC_Mode = ADC_Mode_InjecSimult; 
 
 ADC_InitStructure.ADC_ScanConvMode = ENABLE; 
 ADC_InitStructure.ADC_ContinuousConvMode = DISABLE; 
 ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; 
 ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; 
 ADC_InitStructure.ADC_NbrOfChannel = 3; 
 ADC_Init(ADC2, &ADC_InitStructure); 
 
 ADC_InjectedChannelConfig(ADC2,ADC_Channel_10,1,ADC_SampleTime_1Cycles5); 
 ADC_InjectedChannelConfig(ADC2,ADC_Channel_11,2,ADC_SampleTime_1Cycles5); 
 ADC_InjectedChannelConfig(ADC2,ADC_Channel_12,3,ADC_SampleTime_1Cycles5);
 ADC_InjectedSequencerLengthConfig(ADC2,3);
 ADC_InjectedSequencerLengthConfig(ADC2,3);
 
 ADC_ResetCalibration(ADC2);
 while(ADC_GetResetCalibrationStatus(ADC2));
 ADC_StartCalibration(ADC2);
 while(ADC_GetCalibrationStatus(ADC2));
 ADC_SoftwareStartConvCmd(ADC2, ENABLE); 
}

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