STM32F1 ADC3 Issue

[proinnsias]

Posted on February 15, 2016 at 13:05 Hi, I am having problems Reading from ADC3. I have ADC1 and ADC3 set up on separate DMA channels. I have a separate task to fill a single array with both ADCs, however I can't get anything from ADC3, in fact declaring ADC_Configuration{} will cause the program to crash. I have posted the config below, I believe the problem lies here. If it helps I can post the interrupt functions and array task too if that helps I am using an STM32F103ZE micro.

u16 ADC1_Channels[MAX_ADC1_CHANNELS];
u16 ADC3_Channels[MAX_ADC3_CHANNELS];
u16 ADC_Channels[MAX_ADC_CHANNELS];
void
gpioADC1(
void
)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure PA.xx (ADC Channel1) as analog inputs -------------------------*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 | GPIO_Pin_2 |GPIO_Pin_3 | GPIO_Pin_6 |GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure); 
/* Configure PB.xx (ADC Channel1) as analog inputs -------------------------*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOB, &GPIO_InitStructure); 

}
void
gpioADC3(
void
)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure PF.xx (ADC Channel3) as analog inputs -------------------------*/
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7 | GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOF, &GPIO_InitStructure); 
}
void
ADC1_Configuration(
void
)
{
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_ADCCLKConfig(RCC_PCLK2_Div6);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB | RCC_APB2Periph_ADC1, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
/* GPIO configuration ------------------------------------------------------*/
gpioADC1();
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; 
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; 
NVIC_Init(&NVIC_InitStructure);
ADC_DeInit(ADC1);
DMA_DeInit(DMA1_Channel1);
// DMA1 channel1 configuration ----------------------------------------------
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC1_Channels;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = MAX_ADC1_CHANNELS;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC, ENABLE);
/* Enable DMA1 channel1 */
DMA_Cmd(DMA1_Channel1, ENABLE);
// ADC1 configuration ------------------------------------------------------
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
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 = MAX_ADC1_CHANNELS;
ADC_Init(ADC1, &ADC_InitStructure); 
// Enable ADC1 DMA
ADC_DMACmd(ADC1, ENABLE);
ADC_RegularChannelConfig(ADC1, ADC_Channel_11, 1, ADC_SampleTime_71Cycles5); 
//Sensor 4 PC1
ADC_RegularChannelConfig(ADC1, ADC_Channel_13, 2, ADC_SampleTime_71Cycles5); 
//Sensor 5 PF8
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SampleTime_71Cycles5); 
//Sensor 6 PA2
ADC_RegularChannelConfig(ADC1, ADC_Channel_6, 4, ADC_SampleTime_71Cycles5); 
//Sensor 7 PA6
ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 5, ADC_SampleTime_71Cycles5); 
//Sensor 8 PC4
ADC_RegularChannelConfig(ADC1, ADC_Channel_8, 6, ADC_SampleTime_71Cycles5); 
//Sensor 9 PB0
ADC_RegularChannelConfig(ADC1, ADC_Channel_10, 7, ADC_SampleTime_71Cycles5); 
//Sensor 12 PC0
ADC_RegularChannelConfig(ADC1, ADC_Channel_12, 8, ADC_SampleTime_71Cycles5); 
//Sensor 13 PC2
ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 9, ADC_SampleTime_71Cycles5); 
//Sensor 14 PA0 
ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 10, ADC_SampleTime_71Cycles5); 
//Sensor 15 PA3
ADC_RegularChannelConfig(ADC1, ADC_Channel_7, 11, ADC_SampleTime_71Cycles5); 
//Sensor 17 -ve 1 PA7
ADC_RegularChannelConfig(ADC1, ADC_Channel_15, 12, ADC_SampleTime_71Cycles5); 
//Sensor 18 -ve 2 PC5
ADC_RegularChannelConfig(ADC1, ADC_Channel_9, 13, ADC_SampleTime_71Cycles5); 
//Sensor 19 -ve 3 PB1
ADC_RegularChannelConfig(ADC1, ADC_Channel_1, 14, ADC_SampleTime_71Cycles5); 
// ADC PA1
//////////////////////////////////////////////////////////////////////////////////////
// Enable ADC1 
ADC_Cmd(ADC1, ENABLE);
// Enable ADC1 reset calibaration register
ADC_ResetCalibration(ADC1);
// Check the end of ADC1 reset calibration register 
while
(ADC_GetResetCalibrationStatus(ADC1));
// Start ADC1 calibaration
ADC_StartCalibration(ADC1);
// Check the end of ADC1 calibration 
while
(ADC_GetCalibrationStatus(ADC1));
}
void
ADC3_Configuration(
void
)
{
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
//RCC for ADC3 and ADC3 ports
RCC_ADCCLKConfig(RCC_PCLK2_Div6);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOF | RCC_APB2Periph_ADC3, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA2, ENABLE);
/* GPIO configuration ------------------------------------------------------*/
gpioADC3();
NVIC_InitStructure.NVIC_IRQChannel = DMA2_Channel4_5_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; 
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; 
NVIC_Init(&NVIC_InitStructure);
ADC_DeInit(ADC3);
DMA_DeInit(DMA2_Channel5);
// DMA2 channel5 configuration ----------------------------------------------
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC3_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&ADC3_Channels;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = MAX_ADC3_CHANNELS;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_HalfWord;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_HalfWord;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_High;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA2_Channel5, &DMA_InitStructure);
DMA_ITConfig(DMA2_Channel5, DMA_IT_TC, ENABLE);
/* Enable DMA2 channel5 */
DMA_Cmd(DMA2_Channel5, ENABLE);
// ADC3 configuration ------------------------------------------------------
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
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 = MAX_ADC3_CHANNELS;
ADC_Init(ADC3, &ADC_InitStructure); 
// Enable ADC3 DMA
ADC_DMACmd(ADC3, ENABLE);
ADC_RegularChannelConfig(ADC3, ADC_Channel_4, 15, ADC_SampleTime_71Cycles5); 
//Sensor 1 PF6
ADC_RegularChannelConfig(ADC3, ADC_Channel_5, 16, ADC_SampleTime_71Cycles5); 
//Sensor 10 PF7
ADC_RegularChannelConfig(ADC3, ADC_Channel_6, 17, ADC_SampleTime_71Cycles5); 
//Sensor 2 PF8
ADC_RegularChannelConfig(ADC3, ADC_Channel_7, 18, ADC_SampleTime_71Cycles5); 
//Sensor 11 PF9
ADC_RegularChannelConfig(ADC3, ADC_Channel_8, 19, ADC_SampleTime_71Cycles5); 
//Sensor 3 PF10
//////////////////////////////////////////////////////////////////////////////////////
// Enable ADC3 
ADC_Cmd(ADC3, ENABLE);
// Enable ADC1 reset calibaration register
ADC_ResetCalibration(ADC3);
// Check the end of ADC1 reset calibration register 
while
(ADC_GetResetCalibrationStatus(ADC3));
// Start ADC1 calibaration
ADC_StartCalibration(ADC3);
// Check the end of ADC1 calibration 
while
(ADC_GetCalibrationStatus(ADC3));
}

#adc #dma #stm32f1

[proinnsias]

Posted on February 17, 2016 at 10:13Ok so, I separated the arrays. Having two threads to monitor ADC1 and ADC3.I ran the debug and thr program crashes dues to a stack overflow. An increase in stack size for both threads has rectified this issue. I still cannot get any readings from ADC3 though.