Posted on January 29, 2017 at 21:04Hello All
i have a timer which runs at 10 khz and a adc channel in inject mode, the problem is i have set some gpio toggling inside the ADC1_2_IRQHandler, but nothing happens....
I cant explain why the ADC1_2_IRQHandler is not being triggerd...
This is my adc init code , i am using stm32f10x_md.s file, but i see its defined the irq for adc as
DCD ADC1_2_IRQHandler ; ADC1 & ADC2
and in my project setings i have defined STM32F10X_MD which coresponds in the stm32f10x.h file with bellow
#ifdef STM32F10X_MD
ADC1_2_IRQn = 18, /*!< ADC1 and ADC2 global Interrupt */
NVIC_InitTypeDef NVIC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitStructure.NVIC_IRQChannel = ADC1_2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority =4 ;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 4;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_4 ;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &GPIO_InitStructure);
RCC_ADCCLKConfig(RCC_PCLK2_Div6); // ADC clock set to 72/6 = 12 MHZ
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10 |GPIO_Pin_11|GPIO_Pin_12;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
/* DMA1 channel1 configuration ----------------------------------------------*/
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&(myadcz[0]);
// Data direction: Peripheral is source
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = 8;
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);
DMA_Cmd(DMA1_Channel1, ENABLE);
/* Put everything back to power-on defaults */
ADC_DeInit(ADC1);
/* ADC1 configuration ------------------------------------------------------*/
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
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 = 1;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 1, ADC_SampleTime_71Cycles5); //PA5 - Analog channel 5
/* Enable ADC1 DMA */
//ADC_DMACmd(ADC1, ENABLE);
// INJECTED
/* Set injected sequencer length */
ADC_InjectedSequencerLengthConfig(ADC1, 1);
/* ADC1 injected channel Configuration */
ADC_InjectedChannelConfig(ADC1, ADC_Channel_4, 1, ADC_SampleTime_71Cycles5); //PA4 - Analog ADC1 - channel 4
/* ADC1 injected external trigger configuration */
ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_T1_TRGO);
ADC_ExternalTrigInjectedConvCmd(ADC1, ENABLE);
/* Enable JEOC interrupt */
ADC_ITConfig(ADC1, ADC_IT_JEOC, ENABLE);
/* 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));
/* Start ADC1 Software Conversion */
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
and my interrupt handler
void ADC1_2_IRQHandler(void)
{
GPIO_SetBits(GPIOB,GPIO_Pin_11);
voltage = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_1);
/* Clear ADC1 JEOC pending interrupt bit */
ADC_ClearITPendingBit(ADC1, ADC_IT_JEOC);
GPIO_ResetBits(GPIOB,GPIO_Pin_11);
}
