void adc_set(uint8_t channel, uint8_t rising){
adc_rising = rising;
ADC_ExternalTrigInjectedConvCmd(ADC1, DISABLE);
pwm_trig_led=0;
ADC_InjectedChannelConfig(ADC1, channel, 1, ADC_SampleTime_28Cycles5);
adc_delay_count = 0;
adc_count = 0;
adc_filtered = 0;
ADC_ExternalTrigInjectedConvCmd(ADC1, ENABLE);
pwm_trig_led=1;
}
/*******************************************************************************
* Function Name : SVPWM_InjectedConvConfig
* Description : This function configure ADC1 for 3 shunt current
* reading and temperature and voltage feedbcak after a
* calibration of the three utilized ADC Channels
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void SVPWM_InjectedConvConfig(void)
{
/* ADC1 Injected conversions configuration */
ADC_InjectedSequencerLengthConfig(ADC1,2);
ADC_InjectedSequencerLengthConfig(ADC2,2);
ADC_InjectedChannelConfig(ADC1, PHASE_B_ADC_CHANNEL,1,SAMPLING_TIME_CK);
ADC_InjectedChannelConfig(ADC1, BUS_VOLT_FDBK_CHANNEL,2,SAMPLING_TIME_CK);
/* ADC1 Injected conversions trigger is TIM1 TRGO */
ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_T1_TRGO);
ADC_ExternalTrigInjectedConvCmd(ADC2,ENABLE);
/* Bus voltage protection initialization*/
ADC_AnalogWatchdogCmd(ADC1,ADC_AnalogWatchdog_SingleInjecEnable);
ADC_AnalogWatchdogSingleChannelConfig(ADC1,BUS_VOLT_FDBK_CHANNEL);
ADC_AnalogWatchdogThresholdsConfig(ADC1, OVERVOLTAGE_THRESHOLD>>3,0x00);
/* ADC1 Injected group of conversions end and Analog Watchdog interrupts enabling */
ADC_ITConfig(ADC1, ADC_IT_JEOC | ADC_IT_AWD, ENABLE);
/* ADC2 Injected conversions configuration */
ADC_InjectedSequencerLengthConfig(ADC2,2);
ADC_InjectedChannelConfig(ADC2, PHASE_A_ADC_CHANNEL, 1,SAMPLING_TIME_CK);
ADC_InjectedChannelConfig(ADC2, TEMP_FDBK_CHANNEL, 2,SAMPLING_TIME_CK);
}
void adc1_2_irq_handler(void){
uint16_t new_value;
ADC_ClearITPendingBit(ADC1, ADC_IT_JEOC);
new_value = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_1);
if(adc_delay_count == 0)
adc_filtered = new_value;
else
adc_filtered = ((adc_filtered * 3) + new_value) >> 2;
if(adc_delay_count > 5){
if(adc_rising){
if(adc_filtered > adc_level + 100){
if(adc_count < 3){
adc_count++;
}else{
LED_ORANGE_TOGGLE();
ADC_ExternalTrigInjectedConvCmd(ADC1, DISABLE);
pwm_trig_led=0;
if(adc_comm) comm_tim_set_next_comm();
}
}
}else{
if(adc_filtered < adc_level){
if(adc_count < 3){
adc_count++;
}else{
LED_ORANGE_TOGGLE();
ADC_ExternalTrigInjectedConvCmd(ADC1, DISABLE);
pwm_trig_led=0;
if(adc_comm) comm_tim_set_next_comm();
}
}
}
}else{
adc_delay_count++;
}
}
void SVPWM_3ShuntCurrentReadingCalibration(void)
{
static u16 bIndex;
/* ADC1 Injected group of conversions end interrupt disabling */
ADC_ITConfig(ADC1, ADC_IT_JEOC, DISABLE);
hPhaseAOffset=0;
hPhaseBOffset=0;
hPhaseCOffset=0;
/* ADC1 Injected conversions trigger is given by software and enabled */
ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_None);
ADC_ExternalTrigInjectedConvCmd(ADC1,ENABLE);
/* ADC1 Injected conversions configuration */
ADC_InjectedSequencerLengthConfig(ADC1,3);
ADC_InjectedChannelConfig(ADC1, PHASE_A_ADC_CHANNEL,1,SAMPLING_TIME_CK);
ADC_InjectedChannelConfig(ADC1, PHASE_B_ADC_CHANNEL,2,SAMPLING_TIME_CK);
ADC_InjectedChannelConfig(ADC1, PHASE_C_ADC_CHANNEL,3,SAMPLING_TIME_CK);
/* Clear the ADC1 JEOC pending flag */
ADC_ClearFlag(ADC1, ADC_FLAG_JEOC);
ADC_SoftwareStartInjectedConvCmd(ADC1,ENABLE);
/* ADC Channel used for current reading are read
in order to get zero currents ADC values*/
for(bIndex=0; bIndex <NB_CONVERSIONS; bIndex++)
{
while(!ADC_GetFlagStatus(ADC1,ADC_FLAG_JEOC)) { }
hPhaseAOffset += (ADC_GetInjectedConversionValue(ADC1,ADC_InjectedChannel_1)>>3);
hPhaseBOffset += (ADC_GetInjectedConversionValue(ADC1,ADC_InjectedChannel_2)>>3);
hPhaseCOffset += (ADC_GetInjectedConversionValue(ADC1,ADC_InjectedChannel_3)>>3);
/* Clear the ADC1 JEOC pending flag */
ADC_ClearFlag(ADC1, ADC_FLAG_JEOC);
ADC_SoftwareStartInjectedConvCmd(ADC1,ENABLE);
}
SVPWM_InjectedConvConfig( );
}
/*
Usage:
adc_init_single(ADC1, 1, 1, 0, 0);
... would enable ADC1, enabling channels 1 and 2,
but not 3 and 4.
*/
static inline void adc_init_single(ADC_TypeDef * adc_t,
uint8_t chan1, uint8_t chan2,
uint8_t chan3, uint8_t chan4)
{
GPIO_InitTypeDef gpio;
ADC_InitTypeDef adc;
uint8_t num_channels, rank;
// Paranoia, must be down for 2+ ADC clock cycles before calibration
ADC_Cmd(adc_t, DISABLE);
/* enable adc_t clock */
if (adc_t == ADC1) {
#ifdef USE_AD1
num_channels = NB_ADC1_CHANNELS;
ADC1_GPIO_INIT(gpio);
#endif
}
else if (adc_t == ADC2) {
#ifdef USE_AD2
num_channels = NB_ADC2_CHANNELS;
ADC2_GPIO_INIT(gpio);
#endif
}
/* Configure ADC */
adc.ADC_Mode = ADC_Mode_Independent;
adc.ADC_ScanConvMode = ENABLE;
adc.ADC_ContinuousConvMode = DISABLE;
adc.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
adc.ADC_DataAlign = ADC_DataAlign_Right;
adc.ADC_NbrOfChannel = 0; // No. of channels in regular mode
ADC_Init(adc_t, &adc);
ADC_InjectedSequencerLengthConfig(adc_t, num_channels);
rank = 1;
if (chan1) {
ADC_InjectedChannelConfig(adc_t, adc_channel_map[0], rank,
ADC_SampleTime_41Cycles5);
rank++;
}
if (chan2) {
ADC_InjectedChannelConfig(adc_t, adc_channel_map[1], rank,
ADC_SampleTime_41Cycles5);
rank++;
}
if (chan3) {
ADC_InjectedChannelConfig(adc_t, adc_channel_map[2], rank,
ADC_SampleTime_41Cycles5);
rank++;
}
if (chan4) {
ADC_InjectedChannelConfig(adc_t, adc_channel_map[3], rank,
ADC_SampleTime_41Cycles5);
}
ADC_ExternalTrigInjectedConvCmd(adc_t, ENABLE);
#if defined(USE_AD_TIM4)
ADC_ExternalTrigInjectedConvConfig(adc_t, ADC_ExternalTrigInjecConv_T4_TRGO);
#elif defined(USE_AD_TIM1)
ADC_ExternalTrigInjectedConvConfig(adc_t, ADC_ExternalTrigInjecConv_T1_TRGO);
#else
ADC_ExternalTrigInjectedConvConfig(adc_t, ADC_ExternalTrigInjecConv_T2_TRGO);
#endif
/* Enable ADC<X> JEOC interrupt */
ADC_ITConfig(adc_t, ADC_IT_JEOC, ENABLE);
/* Enable ADC<X> */
ADC_Cmd(adc_t, ENABLE);
/* Enable ADC<X> reset calibaration register */
ADC_ResetCalibration(adc_t);
/* Check the end of ADC<X> reset calibration */
while (ADC_GetResetCalibrationStatus(adc_t)) ;
/* Start ADC<X> calibaration */
ADC_StartCalibration(adc_t);
/* Check the end of ADC<X> calibration */
while (ADC_GetCalibrationStatus(adc_t)) ;
} // adc_init_single
void adcInit(void)
{
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
adcSetConstants();
histSize = ADC_HIST_SIZE;
// Use STM32's Dual Regular Simultaneous Mode capable of ~ 1.7M samples per second
// NOTE: assume that RCC code has already placed all pins into Analog In mode during startup
// DMA1 channel1 configuration (ADC1)
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC1 + 0x4c; //从这个寄存器读
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&adcRawData[0]; //写入到这个内存
DMA_InitStructure.DMA_BufferSize = sizeof(adcRawData)/4; //传输数据量
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; //从外设读
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; //外设地址不递加
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; //存储器地址递加
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;//外设数据宽度32位
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word; //存储器数据宽度32位
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; //循环模式
DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh; //通道优先级最高
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; //非存储器到存储器模式
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC | DMA_IT_HT, ENABLE);
DMA_ClearITPendingBit(DMA1_IT_GL1 | DMA1_IT_TC1 | DMA1_IT_HT1);
DMA_Cmd(DMA1_Channel1, ENABLE);
// Enable the DMA1_Channel1 global Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// ADC1 configuration
// ADC_InitStructure.ADC_Mode = ADC_Mode_RegSimult;
ADC_InitStructure.ADC_Mode = ADC_Mode_RegInjecSimult;//混合的同步规则+注入同步模式
ADC_InitStructure.ADC_ScanConvMode = ENABLE; //使用扫描模式
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; //连续转换模式
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //SWSTART 软件触发模式
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //数据右对齐
ADC_InitStructure.ADC_NbrOfChannel = sizeof(adcRawData)/4;//规则通道序列长度 有8个转换通道
ADC_Init(ADC1, &ADC_InitStructure);
#ifdef ADC_FAST_SAMPLE
//有8个转换通道 都是规则转换序列
//ADC_SAMPLE_TIME是AD的采样时间
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 1, ADC_SAMPLE_TIME); // SENSE_CURRENT
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 2, ADC_SAMPLE_TIME); // SENSE_CURRENT
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SAMPLE_TIME); // SENSE_B
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 4, ADC_SAMPLE_TIME); // SENSE_B
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 5, ADC_SAMPLE_TIME); // SENSE_VIN
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 6, ADC_SAMPLE_TIME); // SENSE_VIN
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 7, ADC_SAMPLE_TIME); // SENSE_B
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 8, ADC_SAMPLE_TIME); // SENSE_B
#else
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 1, ADC_SAMPLE_TIME); // SENSE_CURRENT
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 2, ADC_SAMPLE_TIME); // SENSE_B
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 3, ADC_SAMPLE_TIME); // SENSE_VIN
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 4, ADC_SAMPLE_TIME); // SENSE_B
#endif
ADC_DMACmd(ADC1, ENABLE);//ADC1开启DMA模式
// ADC2 configuration
//ADC_InitStructure.ADC_Mode = ADC_Mode_RegSimult;
ADC_InitStructure.ADC_Mode = ADC_Mode_RegInjecSimult; //混合的同步规则+注入同步模式
ADC_InitStructure.ADC_ScanConvMode = ENABLE; //使用扫描模式
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE; //连续转换模式
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None; //SWSTART 软件触发模式
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right; //数据右对齐
ADC_InitStructure.ADC_NbrOfChannel = sizeof(adcRawData)/4; //规则通道序列长度 有8个转换通道
ADC_Init(ADC2, &ADC_InitStructure);
#ifdef ADC_FAST_SAMPLE
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 1, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 2, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 3, ADC_SAMPLE_TIME); // SENSE_C
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 4, ADC_SAMPLE_TIME); // SENSE_C
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 5, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 6, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 7, ADC_SAMPLE_TIME); // SENSE_C
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 8, ADC_SAMPLE_TIME); // SENSE_C
#else
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 1, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 2, ADC_SAMPLE_TIME); // SENSE_C
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 3, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 4, ADC_SAMPLE_TIME); // SENSE_C
#endif
ADC_ExternalTrigConvCmd(ADC2, ENABLE);//使用外部事件启动转换
// enable and calibrate
ADC_Cmd(ADC1, ENABLE);
adcCalibrateADC(ADC1);
ADC_Cmd(ADC2, ENABLE);
adcCalibrateADC(ADC2);
nextCrossingDetect = adcMaxPeriod;
// setup injection sequence
// 设置注入序列
ADC_InjectedSequencerLengthConfig(ADC1, 1);//注入序列只有1个转换
ADC_InjectedSequencerLengthConfig(ADC2, 1);
ADC_InjectedChannelConfig(ADC1, ADC_Channel_5, 1, ADC_SAMPLE_TIME);//设置注入序列转换的通道
ADC_InjectedChannelConfig(ADC2, ADC_Channel_4, 1, ADC_SAMPLE_TIME);
ADC_ExternalTrigInjectedConvCmd(ADC1, ENABLE);//注入序列 使用外部事件启动转换
ADC_ExternalTrigInjectedConvCmd(ADC2, ENABLE);
ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_None);//软件触发
ADC_ExternalTrigInjectedConvConfig(ADC2, ADC_ExternalTrigInjecConv_None);
// Start ADC1 / ADC2 Conversions
ADC_SoftwareStartConvCmd(ADC1, ENABLE);//开始转换.并设置好外部触发模式
}
void adcInit(void) {
ADC_InitTypeDef ADC_InitStructure;
DMA_InitTypeDef DMA_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
int i;
adcSetConstants();
histSize = ADC_HIST_SIZE;
// Use STM32's Dual Regular Simultaneous Mode capable of ~ 1.7M samples per second
// NOTE: assume that RCC code has already placed all pins into Analog In mode during startup
// DMA1 channel1 configuration (ADC1)
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC1 + 0x4c;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)&adcRawData[0];
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = sizeof(adcRawData)/4;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Word;
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Word;
DMA_InitStructure.DMA_Mode = DMA_Mode_Circular;
DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_Init(DMA1_Channel1, &DMA_InitStructure);
DMA_ITConfig(DMA1_Channel1, DMA_IT_TC | DMA_IT_HT, ENABLE);
DMA_ClearITPendingBit(DMA1_IT_GL1 | DMA1_IT_TC1 | DMA1_IT_HT1);
DMA_Cmd(DMA1_Channel1, ENABLE);
// Enable the DMA1_Channel1 global Interrupt
NVIC_InitStructure.NVIC_IRQChannel = DMA1_Channel1_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
// ADC1 configuration
// ADC_InitStructure.ADC_Mode = ADC_Mode_RegSimult;
ADC_InitStructure.ADC_Mode = ADC_Mode_RegInjecSimult;
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 = sizeof(adcRawData)/4;
ADC_Init(ADC1, &ADC_InitStructure);
#ifdef ADC_FAST_SAMPLE
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 1, ADC_SAMPLE_TIME); // SENSE_CURRENT
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 2, ADC_SAMPLE_TIME); // SENSE_CURRENT
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 3, ADC_SAMPLE_TIME); // SENSE_B
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 4, ADC_SAMPLE_TIME); // SENSE_B
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 5, ADC_SAMPLE_TIME); // SENSE_VIN
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 6, ADC_SAMPLE_TIME); // SENSE_VIN
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 7, ADC_SAMPLE_TIME); // SENSE_B
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 8, ADC_SAMPLE_TIME); // SENSE_B
#else
ADC_RegularChannelConfig(ADC1, ADC_Channel_5, 1, ADC_SAMPLE_TIME); // SENSE_CURRENT
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 2, ADC_SAMPLE_TIME); // SENSE_B
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 3, ADC_SAMPLE_TIME); // SENSE_VIN
ADC_RegularChannelConfig(ADC1, ADC_Channel_2, 4, ADC_SAMPLE_TIME); // SENSE_B
#endif
ADC_DMACmd(ADC1, ENABLE);
// ADC2 configuration
// ADC_InitStructure.ADC_Mode = ADC_Mode_RegSimult;
ADC_InitStructure.ADC_Mode = ADC_Mode_RegInjecSimult;
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 = sizeof(adcRawData)/4;
ADC_Init(ADC2, &ADC_InitStructure);
#ifdef ADC_FAST_SAMPLE
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 1, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 2, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 3, ADC_SAMPLE_TIME); // SENSE_C
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 4, ADC_SAMPLE_TIME); // SENSE_C
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 5, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 6, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 7, ADC_SAMPLE_TIME); // SENSE_C
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 8, ADC_SAMPLE_TIME); // SENSE_C
#else
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 1, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 2, ADC_SAMPLE_TIME); // SENSE_C
ADC_RegularChannelConfig(ADC2, ADC_Channel_1, 3, ADC_SAMPLE_TIME); // SENSE_A
ADC_RegularChannelConfig(ADC2, ADC_Channel_3, 4, ADC_SAMPLE_TIME); // SENSE_C
#endif
ADC_ExternalTrigConvCmd(ADC2, ENABLE);
// enable and calibrate
ADC_Cmd(ADC1, ENABLE);
adcCalibrateADC(ADC1);
ADC_Cmd(ADC2, ENABLE);
adcCalibrateADC(ADC2);
nextCrossingDetect = adcMaxPeriod;
// setup injection sequence
ADC_InjectedSequencerLengthConfig(ADC1, 1);
ADC_InjectedSequencerLengthConfig(ADC2, 1);
ADC_InjectedChannelConfig(ADC1, ADC_Channel_5, 1, ADC_SAMPLE_TIME);
ADC_InjectedChannelConfig(ADC2, ADC_Channel_4, 1, ADC_SAMPLE_TIME);
ADC_ExternalTrigInjectedConvCmd(ADC1, ENABLE);
ADC_ExternalTrigInjectedConvCmd(ADC2, ENABLE);
ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_None);
ADC_ExternalTrigInjectedConvConfig(ADC2, ADC_ExternalTrigInjecConv_None);
// Start ADC1 / ADC2 Conversions
ADC_SoftwareStartConvCmd(ADC1, ENABLE);
}
void adc_init(void){
NVIC_InitTypeDef nvic;
GPIO_InitTypeDef gpio;
ADC_InitTypeDef adc;
/* enable ADC1 clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
/* Configure and enable ADC interrupt */
nvic.NVIC_IRQChannel = ADC1_2_IRQn;
nvic.NVIC_IRQChannelPreemptionPriority = 0;
nvic.NVIC_IRQChannelSubPriority = 0;
nvic.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&nvic);
/* GPIOA: ADC Channel 0, 1, 2 as analog input
* Ch 0 -> BEMF/I_Sense of PHASE A
* Ch 1 -> BEMF/I_Sense of PHASE B
* Ch 2 -> BEMF/I_Sense of PHASE C
*/
gpio.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_1 | GPIO_Pin_2;
gpio.GPIO_Mode = GPIO_Mode_AIN;
GPIO_Init(GPIOA, &gpio);
adc_comm = 0;
adc_filtered = 0;
/* Configure ADC1 */
adc.ADC_Mode = ADC_Mode_Independent;
adc.ADC_ScanConvMode = DISABLE;
adc.ADC_ContinuousConvMode = DISABLE;
adc.ADC_ExternalTrigConv = ADC_ExternalTrigConv_None;
adc.ADC_DataAlign = ADC_DataAlign_Right;
adc.ADC_NbrOfChannel = 0;
ADC_Init(ADC1, &adc);
ADC_InjectedSequencerLengthConfig(ADC1, 1);
ADC_InjectedChannelConfig(ADC1, ADC_Channel_2, 1, ADC_SampleTime_28Cycles5);
ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_T1_CC4);
ADC_ExternalTrigInjectedConvCmd(ADC1, ENABLE);
/* Enable ADC1 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 */
while(ADC_GetResetCalibrationStatus(ADC1));
/* Start ADC1 calibaration */
ADC_StartCalibration(ADC1);
/* Check the end of ADC1 calibration */
while(ADC_GetCalibrationStatus(ADC1));
/* Enable ADC1 External Trigger */
ADC_ExternalTrigConvCmd(ADC1, ENABLE);
//ADC_ExternalTrigConvCmd(ADC1, DISABLE);
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
file (startup_stm32f10x_xx.s) before to branch to application main.
To reconfigure the default setting of SystemInit() function, refer to
system_stm32f10x.c file
*/
/* System clocks configuration ---------------------------------------------*/
RCC_Configuration();
/* NVIC configuration ------------------------------------------------------*/
NVIC_Configuration();
/* GPIO configuration ------------------------------------------------------*/
GPIO_Configuration();
/* EXTI configuration ------------------------------------------------------*/
EXTI_Configuration();
/* DMA1 channel1 configuration ----------------------------------------------*/
DMA_DeInit(DMA1_Channel1);
DMA_InitStructure.DMA_PeripheralBaseAddr = ADC1_DR_Address;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)ADC_RegularConvertedValueTab;
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_BufferSize = 64;
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);
/* Enable DMA1 channel1 */
DMA_Cmd(DMA1_Channel1, ENABLE);
/* ADC1 configuration ------------------------------------------------------*/
ADC_InitStructure.ADC_Mode = ADC_Mode_Independent;
ADC_InitStructure.ADC_ScanConvMode = ENABLE;
ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigConv_Ext_IT11_TIM8_TRGO;
ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
ADC_InitStructure.ADC_NbrOfChannel = 2;
ADC_Init(ADC1, &ADC_InitStructure);
/* ADC1 regular channels configuration */
ADC_RegularChannelConfig(ADC1, ADC_Channel_4, 1, ADC_SampleTime_28Cycles5);
ADC_RegularChannelConfig(ADC1, ADC_Channel_14, 2, ADC_SampleTime_28Cycles5);
/* Regular discontinuous mode channel number configuration */
ADC_DiscModeChannelCountConfig(ADC1, 1);
/* Enable regular discontinuous mode */
ADC_DiscModeCmd(ADC1, ENABLE);
/* Enable ADC1 external trigger conversion */
ADC_ExternalTrigConvCmd(ADC1, ENABLE);
/* Set injected sequencer length */
ADC_InjectedSequencerLengthConfig(ADC1, 2);
/* ADC1 injected channel configuration */
ADC_InjectedChannelConfig(ADC1, ADC_Channel_11, 1, ADC_SampleTime_28Cycles5);
ADC_InjectedChannelConfig(ADC1, ADC_Channel_12, 2, ADC_SampleTime_28Cycles5);
/* ADC1 injected external trigger configuration */
ADC_ExternalTrigInjectedConvConfig(ADC1, ADC_ExternalTrigInjecConv_Ext_IT15_TIM8_CC4);
/* Enable ADC1 injected external trigger conversion */
ADC_ExternalTrigInjectedConvCmd(ADC1, ENABLE);
/* Enable JEOC interrupt */
ADC_ITConfig(ADC1, ADC_IT_JEOC, ENABLE);
/* Enable ADC1 DMA */
ADC_DMACmd(ADC1, ENABLE);
/* Enable ADC1 */
ADC_Cmd(ADC1, ENABLE);
/* Enable ADC1 reset calibration register */
ADC_ResetCalibration(ADC1);
/* Check the end of ADC1 reset calibration register */
while(ADC_GetResetCalibrationStatus(ADC1));
/* Start ADC1 calibration */
ADC_StartCalibration(ADC1);
/* Check the end of ADC1 calibration */
while(ADC_GetCalibrationStatus(ADC1));
while (1)
{
}
}
