STM32F4 ADC_TripleMode_RegSimult

yayi · ‎2012-12-20

Posted on December 20, 2012 at 17:27

Hi,

I am trying to use the 3 ADC in simultaneous mode.

I receive correctly every data but I am not able to catch any interruption in order to drive data on the good place. When I have my table I want to dispatch adc_channel_1to a table, adc_channel_2 to a other table etc...

But I have no interruption.

Here is my code to init DMA:

void DMA_Config(void)

{

RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2, ENABLE);

/* DMA2 Stream0 channel0-11-12 configuration **************************************/

DMA_InitStructure.DMA_Channel = DMA_Channel_0;

DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC_CDR_ADDRESS;

DMA_InitStructure.DMA_Memory0BaseAddr = (uint32_t)&ADCTripleConvertedDemiVal;

DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralToMemory;

DMA_InitStructure.DMA_BufferSize = 180;

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_FIFOMode = DMA_FIFOMode_Enable;

DMA_InitStructure.DMA_FIFOThreshold = DMA_FIFOThreshold_HalfFull;

DMA_InitStructure.DMA_MemoryBurst = DMA_MemoryBurst_Single;

DMA_InitStructure.DMA_PeripheralBurst = DMA_PeripheralBurst_Single;

DMA_Init(DMA2_Stream0, &DMA_InitStructure);

/** Test de l'interruption sur la fin du transfert **/

DMA_ITConfig(DMA2_Stream0, DMA_IT_TC | DMA_IT_TE, ENABLE);

/* DMA2_Stream0 enable */

DMA_Cmd(DMA2_Stream0, ENABLE);

} My code to init GPIO:

void ADC_Gpio_Config(void)

{

/* Enable peripheral clocks */

RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOC, ENABLE);

/* Configure ADC Channel 0 - 3 - 4 - 5 pin as analog input */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5;

//GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;

GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;

GPIO_Init(GPIOA, &GPIO_InitStructure);

/* Configure ADC Channel 6 - 8 - 9 pin as analog input */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6 | GPIO_Pin_8 | GPIO_Pin_9;

//GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;

GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;

GPIO_Init(GPIOB, &GPIO_InitStructure);

/* Configure ADC Channel 10 - 12 - 13 pin as analog input */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 | GPIO_Pin_12 | GPIO_Pin_13;

//GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;

GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;

GPIO_Init(GPIOC, &GPIO_InitStructure);

}

And my code to init ADC:

void ADC_Config(void)

{

ADC_Gpio_Config();

DMA_Config();

/* Enable peripheral clocks */

RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2 |

RCC_APB2Periph_ADC3, ENABLE);

/*******************************************************************************/

/* ADCs configuration: triple simultaneous with 10cycles delay */

/*******************************************************************************/

/* ADC Common Init */

ADC_CommonInitStructure.ADC_Mode = ADC_TripleMode_RegSimult ;

ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div4;

ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_1;

ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_10Cycles;

ADC_CommonInit(&ADC_CommonInitStructure);

/**< ADC1 regular channels 0 and 3 and 4 (and 5) configuration */

ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;

ADC_InitStructure.ADC_ScanConvMode = ENABLE;

ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;

ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;

ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;

ADC_InitStructure.ADC_NbrOfConversion = 3;

ADC_Init(ADC1, &ADC_InitStructure);

/* ADC1 regular channels 0 and 3 and 4 (and 5) configuration */

ADC_RegularChannelConfig(ADC1, ADC_Channel_0, 1, ADC_SampleTime_3Cycles);

ADC_RegularChannelConfig(ADC1, ADC_Channel_3, 2, ADC_SampleTime_3Cycles);

ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 3, ADC_SampleTime_3Cycles);

// ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 4, ADC_SampleTime_15Cycles);

/**< ADC2 regular channels 6 and 8 and 9 configuration */

ADC_Init(ADC2, &ADC_InitStructure);

/* ADC2 regular channels 6 and 8 and 9 configuration */

ADC_RegularChannelConfig(ADC2, ADC_Channel_6, 1, ADC_SampleTime_3Cycles);

ADC_RegularChannelConfig(ADC2, ADC_Channel_8, 2, ADC_SampleTime_3Cycles);

ADC_RegularChannelConfig(ADC2, ADC_Channel_9, 3, ADC_SampleTime_3Cycles);

/**< ADC3 regular channels 10, 12 and 13 configuration */

ADC_Init(ADC3, &ADC_InitStructure);

/* ADC3 regular channels 10, 12 and 13 configuration */

ADC_RegularChannelConfig(ADC3, ADC_Channel_10, 1, ADC_SampleTime_3Cycles);

ADC_RegularChannelConfig(ADC3, ADC_Channel_11, 2, ADC_SampleTime_3Cycles);

ADC_RegularChannelConfig(ADC3, ADC_Channel_12, 3, ADC_SampleTime_3Cycles);

/* Enable EOC Interrupt */

ADC_ITConfig(ADC1, ADC_IT_EOC, ENABLE);

/* Enable DMA request after last transfer (Multi-ADC mode) */

ADC_MultiModeDMARequestAfterLastTransferCmd(ENABLE);

/* Enable ADC1 & ADC2 & ADC3 */

ADC_Cmd(ADC1, ENABLE);

ADC_Cmd(ADC2, ENABLE);

ADC_Cmd(ADC3, ENABLE);

} And my handler:

void ADC1_IRQHandler(void)

{

cptADCIt++;

}

void DMA2_Stream0_IRQHandler(void)

{

DMA_ClearFlag(DMA2_Stream0, DMA_FLAG_TCIF0 | DMA_IT_TEIF0);

cptDMAIt++;

}

The cptXXXIt never increase...

Can someone help me?

Thanks.

raptorhal2 · ‎2012-12-20

Posted on December 20, 2012 at 18:26

You are not getting correct values for ADC 2 and 3. The correct pin assignments are:

ADC2 CH8 is PB0

ADC2 CH9 is PB1

ADC3 CH10 is PC0

ADC3 CH12 is PC2

ADC3 CH13 is PC3

This isn't the cause of missing interrupts. I will take a look and see if I can find that problem.

Cheers, Hal

raptorhal2 · ‎2012-12-20

Posted on December 20, 2012 at 18:38

You are missing the command to connect ADC1 to DMA

/* Enable ADC1 DMA since ADC1 is the Master*/

ADC_DMACmd(ADC1, ENABLE);

and to start conversion

/* Start ADC1 Software Conversion */

ADC_SoftwareStartConv(ADC1);

Cheers, Hal

yayi · ‎2012-12-20

Posted on December 20, 2012 at 19:12

Hello,

I do this in my main, that I have not copy...

But for the channel I will take a look, I have some difficulties to understand the pin assignment explication on data sheet. Thanks for the informations.

Jérome

zzdz2 · ‎2012-12-20

Posted on December 20, 2012 at 19:57

I'm not familiar with F4 but in my F1 I had to enable NVIC:

NVIC_EnableIRQ(DMA1_Channel1_IRQn);

raptorhal2 · ‎2012-12-20

Posted on December 20, 2012 at 20:20

Perhaps this will help understanding:

PC0 assigned to ADC123_IN10 means that pin PC0 is available as channel 10 on all three ADCs.

PA4 assigned to ADC12_IN4 means that pin PA4 is available as channel 4 on ADC1 and 2.

If you had a 144 pin count or higher F4, PF3 for example is available only as ADC3 channel 9. Note that there is no channel 9 on ADC123.

Cheers, Hal

yayi · ‎2012-12-20

Posted on December 21, 2012 at 08:08

Hello,

This is part of my main :

NVIC_InitStructure.NVIC_IRQChannel = ADC_IRQn | DMA2_Stream0_IRQn;

NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;

NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;

NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;

NVIC_Init(&NVIC_InitStructure);

ADC_Config(); //Which is shown is firt message.

while (!DMA_GetCmdStatus(DMA2_Stream0))

{

i++;

}

/* Start ADC1 Software Conversion */

ADC_SoftwareStartConv(ADC1); After that I enter in my infinite loop.

I check my project on microXplorer and you are right a do mistake on pin assignment!!! I correct that thx..

yayi · ‎2012-12-21

Posted on December 21, 2012 at 09:27

Just for who need it, here is the correction of the pin assignment in accordance with microXplorer for a STM32F407VG.

void ADC_Gpio_Config(void)

{

/* Enable peripheral clocks */

RCC_AHB1PeriphClockCmd( RCC_AHB1Periph_GPIOA | RCC_AHB1Periph_GPIOB | RCC_AHB1Periph_GPIOC, ENABLE);

/* Configure ADC Channel 0 - 3 - 4 - 5 - 6, GPIOA pin as analog input */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_3 | GPIO_Pin_4 | GPIO_Pin_5 | GPIO_Pin_6;

//GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;

GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;

GPIO_Init(GPIOA, &GPIO_InitStructure);

/* Configure ADC Channel 8 - 9, GPIOB pin as analog input */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1;

//GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;

GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;

GPIO_Init(GPIOB, &GPIO_InitStructure);

/* Configure ADC Channel 10 - 12 - 13, GPIOC pin as analog input */

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_2 | GPIO_Pin_3;

//GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;

GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;

GPIO_Init(GPIOC, &GPIO_InitStructure);

}

zzdz2 · ‎2012-12-21

Posted on December 21, 2012 at 09:52

Have you tried to clear the adc flag in adc handler like you do in dma handler?

Does it work when you disable adc irq?

yayi · ‎2012-12-21

Posted on December 21, 2012 at 09:58

Hello knik,

Yes I do but as I never detect the interruption nothing update.

void ADC1_IRQHandler(void)

{

if ( ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) )

{

ADC_ClearFlag(ADC1, ADC_FLAG_EOC);

}

cptADCIt++;

}

But I detect the flag (and reset it) in infinite loop and it increase correctly my cpt...

On the other side, I am not sure to use the good handler.

Jerome