void adcInit(void)
{
if(isInit)
return;
ADC_InitTypeDef ADC_InitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
// Enable TIM2, GPIOA and ADC1 clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1 | RCC_APB2Periph_ADC2 |
RCC_APB2Periph_GPIOA | RCC_APB2Periph_AFIO, ENABLE);
//Timer configuration
TIM_TimeBaseStructure.TIM_Period = ADC_TRIG_PERIOD;
TIM_TimeBaseStructure.TIM_Prescaler = ADC_TRIG_PRESCALE;
TIM_TimeBaseStructure.TIM_ClockDivision = 0;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
// TIM2 channel2 configuration in PWM mode
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 1;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
TIM_OC2Init(TIM2, &TIM_OCInitStructure);
TIM_OC2PreloadConfig(TIM2, TIM_OCPreload_Enable);
// Halt timer 2 during debug halt.
DBGMCU_Config(DBGMCU_TIM2_STOP, ENABLE);
adcDmaInit();
// ADC1 configuration
ADC_DeInit(ADC1);
ADC_InitStructure.ADC_Mode = ADC_Mode_RegSimult;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T2_CC2;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = NBR_OF_ADC_CHANNELS;
ADC_Init(ADC1, &ADC_InitStructure);
// ADC1 channel sequence
ADC_RegularChannelConfig(ADC1, CH_VREF, 1, ADC_SampleTime_28Cycles5);
// ADC2 configuration
ADC_DeInit(ADC2);
ADC_InitStructure.ADC_Mode = ADC_Mode_RegSimult;
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 = NBR_OF_ADC_CHANNELS;
ADC_Init(ADC2, &ADC_InitStructure);
// ADC2 channel sequence
ADC_RegularChannelConfig(ADC2, CH_VBAT, 1, ADC_SampleTime_28Cycles5);
// Enable ADC1
ADC_Cmd(ADC1, ENABLE);
// Calibrate ADC1
ADC_ResetCalibration(ADC1);
while(ADC_GetResetCalibrationStatus(ADC1));
ADC_StartCalibration(ADC1);
while(ADC_GetCalibrationStatus(ADC1));
// Enable ADC1 external trigger
ADC_ExternalTrigConvCmd(ADC1, ENABLE);
ADC_TempSensorVrefintCmd(ENABLE);
// Enable ADC2
ADC_Cmd(ADC2, ENABLE);
// Calibrate ADC2
ADC_ResetCalibration(ADC2);
while(ADC_GetResetCalibrationStatus(ADC2));
ADC_StartCalibration(ADC2);
while(ADC_GetCalibrationStatus(ADC2));
// Enable ADC2 external trigger
ADC_ExternalTrigConvCmd(ADC2, ENABLE);
// Enable the DMA1 channel1 Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_ADC_PRI;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
adcQueue = xQueueCreate(1, sizeof(AdcGroup*));
xTaskCreate(adcTask, (const signed char *)"ADC",
configMINIMAL_STACK_SIZE, NULL, /*priority*/3, NULL);
isInit = true;
}
void adcInit(void)
{
if(isInit)
return;
ADC_InitTypeDef ADC_InitStructure;
ADC_CommonInitTypeDef ADC_CommonInitStructure;
TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
// Enable TIM2, GPIOA and ADC1 clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
//Timer configuration
TIM_TimeBaseStructure.TIM_Period = ADC_TRIG_PERIOD;
TIM_TimeBaseStructure.TIM_Prescaler = ADC_TRIG_PRESCALE;
TIM_TimeBaseStructure.TIM_ClockDivision = 4;
TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;
TIM_TimeBaseInit(TIM2, &TIM_TimeBaseStructure);
// TIM2 channel2 configuration in PWM mode
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;
TIM_OCInitStructure.TIM_Pulse = 1;
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low;
TIM_OC2Init(TIM2, &TIM_OCInitStructure);
TIM_OC2PreloadConfig(TIM2, TIM_OCPreload_Enable);
// Halt timer 2 during debug halt.
DBGMCU_Config(DBGMCU_TIM2_STOP, ENABLE);
adcDmaInit();
// ADC1 configuration
ADC_CommonStructInit(&ADC_CommonInitStructure);
ADC_CommonInitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_CommonInitStructure.ADC_Prescaler = ADC_Prescaler_Div8;
ADC_CommonInitStructure.ADC_DMAAccessMode = ADC_DMAAccessMode_Disabled;
ADC_CommonInitStructure.ADC_TwoSamplingDelay = ADC_TwoSamplingDelay_5Cycles;
ADC_CommonInit(&ADC_CommonInitStructure);
ADC_StructInit(&ADC_InitStructure);
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_Rising;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_T2_CC2;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfConversion = 2;
ADC_Init(ADC1, &ADC_InitStructure);
// ADC1 channel sequence
ADC_RegularChannelConfig(ADC1, CH_VREF, 1, ADC_SampleTime_28Cycles);
ADC_RegularChannelConfig(ADC1, CH_VBAT, 2, ADC_SampleTime_28Cycles);
ADC_DMARequestAfterLastTransferCmd(ADC1, ENABLE);
ADC_VBATCmd(ENABLE);
// Enable ADC1
ADC_Cmd(ADC1, ENABLE);
// Enable the DMA1 channel Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA2_Stream0_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = NVIC_ADC_PRI;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
adcQueue = xQueueCreate(1, sizeof(AdcGroup));
xTaskCreate(adcTask, "ADC", configMINIMAL_STACK_SIZE, NULL,
/*priority*/3, NULL);
isInit = true;
}
