void adc_init_injected(int use_trigger, int trigger){
//Confiure pins PA0[AN1], PA1[AN2] for analog input operation
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA,ENABLE);
GPIO_InitTypeDef myGPIO;
GPIO_StructInit(&myGPIO);
myGPIO.GPIO_Pin=(GPIO_Pin_1|GPIO_Pin_0);
myGPIO.GPIO_Mode=GPIO_Mode_AN;
GPIO_Init(GPIOA,&myGPIO);
//Configure ADC
RCC_ADCCLKConfig(RCC_ADC12PLLCLK_OFF);
RCC_AHBPeriphClockCmd(RCC_AHBENR_ADC12EN,ENABLE);
ADC_CommonInitTypeDef myADC_Comm;
ADC_CommonStructInit(&myADC_Comm);
myADC_Comm.ADC_Clock=ADC_Clock_SynClkModeDiv1;
ADC_CommonInit(ADC1,&myADC_Comm);
ADC_VoltageRegulatorCmd(ADC1,ENABLE);
/*Initial calibration*/
ADC_SelectCalibrationMode(ADC1, ADC_CalibrationMode_Single);
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1) != RESET);
ADC_GetCalibrationValue(ADC1);
ADC_InjectedInitTypeDef myADC;
ADC_InjectedStructInit(&myADC);
myADC.ADC_ExternalTrigInjecEventEdge= (use_trigger) ? ADC_ExternalTrigInjecEventEdge_RisingEdge : ADC_ExternalTrigInjecEventEdge_None;
//Connect timer with adc
myADC.ADC_ExternalTrigInjecConvEvent=trigger;//Start convertion on TIM2_OTRIG
myADC.ADC_NbrOfInjecChannel=2;
myADC.ADC_InjecSequence1=ADC_InjectedChannel_1;
myADC.ADC_InjecSequence2=ADC_InjectedChannel_1;
myADC.ADC_InjecSequence3=ADC_InjectedChannel_1;
myADC.ADC_InjecSequence4=ADC_InjectedChannel_2;
ADC_InjectedInit(ADC1,&myADC);
ADC_InjectedChannelSampleTimeConfig(ADC1,ADC_InjectedChannel_1,ADC_SampleTime_7Cycles5);
ADC_InjectedChannelSampleTimeConfig(ADC1,ADC_InjectedChannel_2,ADC_SampleTime_7Cycles5);
//
ADC_ITConfig(ADC1, ADC_IT_JEOS, ENABLE);
NVIC_EnableIRQ(ADC1_IRQn);
/* wait for ADRDY */
ADC_Cmd(ADC1,ENABLE);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_RDY));
}
void ADC_init(void)
{
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
ADC_InjectedInitTypeDef ADC_InjectedInitStruct;
RCC_ADCCLKConfig(RCC_ADC12PLLCLK_Div1);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ADC12, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
ADC_VoltageRegulatorCmd(ADC1, ENABLE);
Delay_ms(10);
ADC_SelectCalibrationMode(ADC1, ADC_CalibrationMode_Single);
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1) != RESET );
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Clock = ADC_Clock_AsynClkMode;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_DMAMode = ADC_DMAMode_OneShot;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = 0;
ADC_CommonInit(ADC1, &ADC_CommonInitStructure);
ADC_InitStructure.ADC_ContinuousConvMode = ADC_ContinuousConvMode_Disable;
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ExternalTrigConvEvent = ADC_ExternalTrigConvEvent_0;
ADC_InitStructure.ADC_ExternalTrigEventEdge = ADC_ExternalTrigEventEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_OverrunMode = ADC_OverrunMode_Disable;
ADC_InitStructure.ADC_AutoInjMode = ADC_AutoInjec_Disable;
ADC_InitStructure.ADC_NbrOfRegChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_InjectedInitStruct.ADC_ExternalTrigInjecConvEvent = ADC_ExternalTrigInjecConvEvent_9;
ADC_InjectedInitStruct.ADC_ExternalTrigInjecEventEdge = ADC_ExternalTrigInjecEventEdge_RisingEdge;
ADC_InjectedInitStruct.ADC_InjecSequence1 = ADC_InjectedChannel_1; /* to PA0 (Iout) */
ADC_InjectedInitStruct.ADC_InjecSequence2 = ADC_InjectedChannel_2; /* to PA1 (Vout) */
ADC_InjectedInitStruct.ADC_InjecSequence3 = ADC_InjectedChannel_3; /* to PA2 (Vext) */
ADC_InjectedInitStruct.ADC_InjecSequence4 = ADC_InjectedChannel_4; /* to PA3 (Vin) */
ADC_InjectedInitStruct.ADC_NbrOfInjecChannel = 4;
ADC_InjectedInit(ADC1, &ADC_InjectedInitStruct);
/* ADC1 channel2 configuration */
ADC_InjectedChannelSampleTimeConfig(ADC1, ADC_Channel_1, ADC_SampleTime_2Cycles5); /* Iout */
ADC_InjectedChannelSampleTimeConfig(ADC1, ADC_Channel_2, ADC_SampleTime_2Cycles5); /* Vout */
ADC_InjectedChannelSampleTimeConfig(ADC1, ADC_Channel_3, ADC_SampleTime_2Cycles5); /* Vext */
ADC_InjectedChannelSampleTimeConfig(ADC1, ADC_Channel_4, ADC_SampleTime_2Cycles5); /* Vin */
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
/* wait for ADRDY */
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_RDY));
/* Start ADC1 Injected Conversions */
ADC_StartInjectedConversion(ADC1);
}
void ADC_Configuration(void)
{
__IO uint16_t calibration_value = 0;
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
ADC_InjectedInitTypeDef ADC_InjInitStructure;
ADC_StructInit(&ADC_InitStructure);
/* Calibration procedure */
ADC_VoltageRegulatorCmd(ADC2, ENABLE);
/* Insert delay equal to 10 µs */
Delay(10);
ADC_SelectCalibrationMode(ADC2, ADC_CalibrationMode_Single);
ADC_StartCalibration(ADC2);
while(ADC_GetCalibrationStatus(ADC2) != RESET );
calibration_value = ADC_GetCalibrationValue(ADC2);
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_InjSimul;
ADC_CommonInitStructure.ADC_Clock = ADC_Clock_AsynClkMode;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_DMAMode = ADC_DMAMode_OneShot;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = 0;
ADC_CommonInit(ADC2, &ADC_CommonInitStructure);
ADC_InitStructure.ADC_ContinuousConvMode = ADC_ContinuousConvMode_Enable;
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ExternalTrigConvEvent = ADC_ExternalTrigConvEvent_0;
ADC_InitStructure.ADC_ExternalTrigEventEdge = ADC_ExternalTrigEventEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_OverrunMode = ADC_OverrunMode_Disable;
ADC_InitStructure.ADC_AutoInjMode = ADC_AutoInjec_Enable;
ADC_InitStructure.ADC_NbrOfRegChannel = 3;
ADC_Init(ADC2, &ADC_InitStructure);
ADC_InjInitStructure.ADC_ExternalTrigInjecConvEvent = ADC_ExternalTrigInjecConvEvent_0;
ADC_InjInitStructure.ADC_ExternalTrigInjecEventEdge = ADC_ExternalTrigInjecEventEdge_None;
ADC_InjInitStructure.ADC_NbrOfInjecChannel = 3;
ADC_InjInitStructure.ADC_InjecSequence1 = ADC_Channel_5;
ADC_InjInitStructure.ADC_InjecSequence2 = ADC_Channel_11;
ADC_InjInitStructure.ADC_InjecSequence3 = ADC_Channel_12;
ADC_InjectedInit(ADC2, &ADC_InjInitStructure);
/* ADC1 regular channel7 configuration */
//ADC_RegularChannelConfig(ADC2, ADC_Channel_5, 1, ADC_SampleTime_7Cycles5);
ADC_InjectedChannelSampleTimeConfig(ADC2, ADC_Channel_5, ADC_SampleTime_7Cycles5);
ADC_InjectedChannelSampleTimeConfig(ADC2, ADC_Channel_11,ADC_SampleTime_7Cycles5);
ADC_InjectedChannelSampleTimeConfig(ADC2, ADC_Channel_12,ADC_SampleTime_7Cycles5);
/* Enable ADC1 */
ADC_Cmd(ADC2, ENABLE);
/* wait for ADRDY */
while(!ADC_GetFlagStatus(ADC2, ADC_FLAG_RDY));
/* Start ADC1 Software Conversion */
ADC_StartConversion(ADC2);
}
//CURRENT_ADC: PA0 ADC1_IN1
//OUTPUT_ADC: PA1 ADC1_IN2
//SUPPLY_ADC: PA2 ADC1_IN3
//AUDIO_ADC: PA3 ADC1_IN4
void ADC_config(){
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
ADC_InjectedInitTypeDef ADC_InjectedInitStruct;
/* Configure the ADC clock */
RCC_ADCCLKConfig(RCC_ADC12PLLCLK_Div1);
/* Enable ADC1 clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ADC12, ENABLE);
//enable power to ADC
ADC_VoltageRegulatorCmd(ADC1, ENABLE);
msDelay(1); //allow power to stabilize
//calibrate the ADC
ADC_SelectCalibrationMode(ADC1, ADC_CalibrationMode_Single);
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1) != RESET ); //wait for finish
//structure to init ADC1
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Clock = ADC_Clock_AsynClkMode;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_DMAMode = ADC_DMAMode_OneShot;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = 0;
ADC_CommonInit(ADC1, &ADC_CommonInitStructure); //init the ADC
//more detailed init structure
//do not set up in regular sampling mode, want injected sampling mode
ADC_InitStructure.ADC_ContinuousConvMode = ADC_ContinuousConvMode_Disable;
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ExternalTrigConvEvent = ADC_ExternalTrigConvEvent_0;
ADC_InitStructure.ADC_ExternalTrigEventEdge = ADC_ExternalTrigEventEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_OverrunMode = ADC_OverrunMode_Disable;
ADC_InitStructure.ADC_AutoInjMode = ADC_AutoInjec_Disable;
ADC_InitStructure.ADC_NbrOfRegChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
//set up ADC injection sampling
//injected event comes from page 230 of the refrence manual
//HRTIM_ADCTRG2 event
ADC_InjectedInitStruct.ADC_ExternalTrigInjecConvEvent = ADC_ExternalTrigInjecConvEvent_9;
ADC_InjectedInitStruct.ADC_ExternalTrigInjecEventEdge = ADC_ExternalTrigInjecEventEdge_RisingEdge;
ADC_InjectedInitStruct.ADC_InjecSequence1 = ADC_InjectedChannel_1; /* corresponds to PA0 (CURRENT_ADC) */
ADC_InjectedInitStruct.ADC_InjecSequence2 = ADC_InjectedChannel_2; /* corresponds to PA1 (OUTPUT_ADC) */
ADC_InjectedInitStruct.ADC_InjecSequence3 = ADC_InjectedChannel_3; /* corresponds to PA2 (SUPPLY_ADC) */
ADC_InjectedInitStruct.ADC_InjecSequence4 = ADC_InjectedChannel_4; /* corresponds to PA3 (AUDIO_ADC) */
ADC_InjectedInitStruct.ADC_NbrOfInjecChannel = 4;
ADC_InjectedInit(ADC1, &ADC_InjectedInitStruct);
ADC_InjectedChannelSampleTimeConfig(ADC1, ADC_Channel_1, ADC_SampleTime_7Cycles5); //~15ns time constant
ADC_InjectedChannelSampleTimeConfig(ADC1, ADC_Channel_2, ADC_SampleTime_7Cycles5); //clk is 14ns
ADC_InjectedChannelSampleTimeConfig(ADC1, ADC_Channel_3, ADC_SampleTime_7Cycles5); //~7 time constants
ADC_InjectedChannelSampleTimeConfig(ADC1, ADC_Channel_4, ADC_SampleTime_7Cycles5);
ADC_Cmd(ADC1, ENABLE); //enable ADC
// wait for adc to be ready
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_RDY));
//Start ADC1 Injected Conversions
//this actually just enables it
ADC_StartInjectedConversion(ADC1);
}
