void U_ADC::ADCInit(uint8_t ADC_Channel, uint8_t ADC_SampleTime) {
ADC_InitTypeDef ADC_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
ADC_DeInit(ADC1);
ADC_StructInit(&ADC_InitStructure);
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_ScanDirection = ADC_ScanDirection_Upward;
ADC_Init(ADC1, &ADC_InitStructure);
RCC_ADCCLKConfig(RCC_ADCCLK_PCLK_Div4);
ADC_ChannelConfig(ADC1, ADC_Channel, ADC_SampleTime);
ADC_TempSensorCmd(ENABLE);
ADC_GetCalibrationFactor(ADC1);
ADC_Cmd(ADC1, ENABLE);
while (!ADC_GetFlagStatus(ADC1, ADC_FLAG_ADEN))
;
}
void ds_therm_init(void) {
//Initialization
RCC_ADCCLKConfig(RCC_ADC12PLLCLK_Div2);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_ADC12, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOF, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOF, &GPIO_InitStructure);
//Enable the ADC’s voltage regulator and wait for it to stabilize
ADC_VoltageRegulatorCmd(ADC1, ENABLE);
ADC_TempSensorCmd(ADC1, ENABLE);
ds_delay_uS(10);
//Initialize the parameters that are common to all of the A2D Channels
ADC_CommonInitTypeDef ADC_CommonInitStructure;
ADC_CommonStructInit(&ADC_CommonInitStructure);
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);
//Initialize the parameters specific to channel 10
ADC_InitTypeDef ADC_InitStructure;
ADC_StructInit(&ADC_InitStructure);
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_Disable;
ADC_InitStructure.ADC_NbrOfRegChannel = 1;
ADC_Init(ADC1, &ADC_InitStructure);
//Configure the specific ADC, channel, and timing
ADC_RegularChannelConfig(ADC1, ADC_Channel_16, 1, ADC_SampleTime_7Cycles5);
//Enable the ADC and wait for it to become ready.
ADC_Cmd(ADC1, ENABLE);
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_RDY));
//Start the first conversion
ADC_StartConversion(ADC1);
}
/**
* @brief ADC1 channel with DMA configuration
* @param None
* @retval None
*/
void ADC1_DMA_Config(void)
{
ADC_InitTypeDef ADC_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
/* ADC1 DeInit */
ADC_DeInit(ADC1);
/* GPIOC Periph clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
/* ADC1 Periph clock enable */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
/* DMA1 clock enable */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1 , ENABLE);
/* Configure ADC Channel11 as analog input */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1 ;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* DMA1 Channel1 Config */
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)RegularConvData_Tab;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = 4;
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);
/* DMA1 Channel1 enable */
DMA_Cmd(DMA1_Channel1, ENABLE);
/* ADC DMA request in circular mode */
ADC_DMARequestModeConfig(ADC1, ADC_DMAMode_Circular);
/* Enable ADC_DMA */
ADC_DMACmd(ADC1, ENABLE);
/* Initialize ADC structure */
ADC_StructInit(&ADC_InitStructure);
/* Configure the ADC1 in continous mode withe a resolutuion equal to 12 bits */
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_ScanDirection = ADC_ScanDirection_Backward;
ADC_Init(ADC1, &ADC_InitStructure);
/* Convert the ADC1 Channel 1 with 55.5 Cycles as sampling time */
ADC_ChannelConfig(ADC1, ADC_Channel_11 , ADC_SampleTime_55_5Cycles);
/* Convert the ADC1 temperature sensor with 55.5 Cycles as sampling time */
ADC_ChannelConfig(ADC1, ADC_Channel_TempSensor , ADC_SampleTime_55_5Cycles);
ADC_TempSensorCmd(ENABLE);
/* Convert the ADC1 Vref with 55.5 Cycles as sampling time */
ADC_ChannelConfig(ADC1, ADC_Channel_Vrefint , ADC_SampleTime_55_5Cycles);
ADC_VrefintCmd(ENABLE);
/* Convert the ADC1 Vbat with 55.5 Cycles as sampling time */
ADC_ChannelConfig(ADC1, ADC_Channel_Vbat , ADC_SampleTime_55_5Cycles);
ADC_VbatCmd(ENABLE);
/* ADC Calibration */
ADC_GetCalibrationFactor(ADC1);
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
/* Wait the ADRDY falg */
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_ADRDY));
/* ADC1 regular Software Start Conv */
ADC_StartOfConversion(ADC1);
}
void init_adc( void )
{
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
// GPIOA Periph clock enable
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA, ENABLE);
GPIO_StructInit(&GPIO_InitStructure);
//Configure ADC Channel1/2/3/4 PA1/2/3/4 as analog input
GPIO_InitStructure.GPIO_Pin = (GPIO_Pin_1 | GPIO_Pin_2 | GPIO_Pin_3 | GPIO_Pin_4 );
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// ADC1 DeInit
ADC_DeInit(ADC1);
// ADC1 Periph clock enable
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
// DMA1 clock enable
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1 , ENABLE);
// DMA1 Channel1 Config
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)RegularConvData_Tab;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = NO_SAMPLES * NO_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);
// DMA1 Channel1 enable
DMA_Cmd(DMA1_Channel1, ENABLE);
// ADC DMA request in circular mode
ADC_DMARequestModeConfig(ADC1, ADC_DMAMode_Circular);
// Enable ADC_DMA
ADC_DMACmd(ADC1, ENABLE);
// Initialize ADC structure
ADC_StructInit(&ADC_InitStructure);
// Configure the ADC1 in continous mode withe a resolutuion equal to 12 bits
ADC_InitStructure.ADC_Resolution = ADC_Resolution_12b;
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
ADC_InitStructure.ADC_ExternalTrigConvEdge = ADC_ExternalTrigConvEdge_None;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_ScanDirection = ADC_ScanDirection_Upward;
ADC_Init(ADC1, &ADC_InitStructure);
ADC_JitterCmd(ADC1, ADC_JitterOff_PCLKDiv4, ENABLE);
//ADC Frequency set as 12MHz
//With 5 ADC readings at 239.5 + 12.5 ADC Cycles
//this gives a sampling rate of
// Convert the ADC_SOL_V with 239.5 + 12.5 = ADC Cycles as sampling time
ADC_ChannelConfig(ADC1, ADC_SOL_V , ADC_SampleTime_239_5Cycles);
// Convert the ADC_SOL_I with 239.5 + 12.5 = ADC Cycles as sampling time
ADC_ChannelConfig(ADC1, ADC_SOL_I , ADC_SampleTime_239_5Cycles);
// Convert the ADC_BATT_V with 239.5 + 12.5 = ADC Cycles as sampling time
ADC_ChannelConfig(ADC1, ADC_BATT_V , ADC_SampleTime_239_5Cycles);
// Convert the ADC_BATT_I with 239.5 + 12.5 = ADC Cycles as sampling time
ADC_ChannelConfig(ADC1, ADC_BATT_I , ADC_SampleTime_239_5Cycles);
//Enable Temperature Sensor
//>2.2us Sampling time required
ADC_TempSensorCmd(ENABLE);
ADC_ChannelConfig(ADC1, ADC_TEMP, ADC_SampleTime_239_5Cycles);
//Get Temp Calibration Values
ts_cal1 = *( (uint16_t*) 0x1FFFF7B8 );
ts_cal2 = *( (uint16_t*) 0x1FFFF7C2 );
// ADC Calibration
ADC_GetCalibrationFactor(ADC1);
// Enable ADC1
ADC_Cmd(ADC1, ENABLE);
// Wait the ADCEN falg
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_ADEN));
//adc_init_analog_watchdog();
// ADC1 regular Software Start Conv
ADC_StartOfConversion(ADC1);
}
