void DAC_ConfigurationInit()
{
DAC_InitTypeDef DAC_InitStruct;
GPIO_InitTypeDef GPIO_InitStruct;
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA, ENABLE );
RCC_APB1PeriphClockCmd( RCC_APB1Periph_DAC, ENABLE );
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init( GPIOA, &GPIO_InitStruct );
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_AIN;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init( GPIOA, &GPIO_InitStruct );
DAC_InitStruct.DAC_Trigger = DAC_Trigger_Software;
DAC_InitStruct.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStruct.DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bit0;
DAC_InitStruct.DAC_OutputBuffer = DAC_OutputBuffer_Disable;
DAC_Init( DAC_Channel_1, &DAC_InitStruct );
DAC_Init( DAC_Channel_2, &DAC_InitStruct );
DAC_Cmd( DAC_Channel_1, ENABLE );
DAC_Cmd( DAC_Channel_2, ENABLE );
DAC_SetChannel1Data( DAC_Align_12b_R, 0X0fFF);
DAC_SoftwareTriggerCmd( DAC_Channel_1, ENABLE );
DAC_SetChannel1Data( DAC_Align_12b_R, 0X03FF);
DAC_SoftwareTriggerCmd( DAC_Channel_2, ENABLE );
}
void TIM2_IRQHandler(void)
{
TIM_ClearITPendingBit(TIM2, TIM_IT_Update);
if( state == STATE_START )
{
ADCIndex = 0;
DAC1Value = DAC1.start;
DAC2Value = DAC2.start;
DAC_SetChannel1Data(DAC_Align_12b_R, DAC1Value);
DAC_SetChannel2Data(DAC_Align_12b_R, DAC2Value);
state = STATE_ACTIVE;
}
else
{
DAC1Value += DAC1.step;
if( DAC1Value > DAC1.stop )
{
EOL = 1;
DAC1Value = DAC1.start;
DAC2Value += DAC2.step;
if(DAC2Value > DAC2.stop)
{
DAC2Value = DAC2.start;
EOS = 1;
}
DAC_SetChannel2Data(DAC_Align_12b_R, DAC2Value);
}
DAC_SetChannel1Data(DAC_Align_12b_R, DAC1Value);
}
}
void BIAS_SetValue(uint16_t val_dac){
if (val_dac < 4096) DAC_SetChannel1Data(DAC_Align_12b_R, val_dac);
else DAC_SetChannel1Data(DAC_Align_12b_R, 4095);
DAC_SoftwareTriggerCmd(DAC_Channel_1, ENABLE);
BIAS_DAC_Value = DAC_GetDataOutputValue(DAC_Channel_1);
}
void TIM2_IRQHandler(void)
{
int d, mv;
//handle power 1
d = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_1);
ict_vget_1 = d2mv(d);
//printf("%d\n",ict_vget_1);
mv = ict_vget_1 - ict_vexp_1;
ict_vout_1 -= mv;
d = mv2d(ict_vout_1);
if(d < 0) d = 0;
DAC_SetChannel1Data(DAC_Align_12b_R, d);
//handle power 2
d = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_2);
ict_vget_2 = d2mv(d);
//printf("%d\n",ict_vget_2);
mv = ict_vget_2 - ict_vexp_2;
ict_vout_2 -= mv;
d = mv2d(ict_vout_2);
if(d < 0) d = 0;
DAC_SetChannel2Data(DAC_Align_12b_R, d);
//handle I1&I2
d = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_3);
ict_iget_1 = d2mA(d);
d = ADC_GetInjectedConversionValue(ADC1, ADC_InjectedChannel_4);
ict_iget_2 = d2mA(d);
//printf("I1 = %d I2 = %d\n", i1, i2);
ADC_SoftwareStartInjectedConvCmd(ADC1, ENABLE);
TIM_ClearITPendingBit(TIM2, TIM_FLAG_Update);
}
void DacInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
DAC_InitTypeDef DAC_InitStructure;
DacSinusCalculate();
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
RCC_AHBPeriphClockCmd(GENERATOR_PIN_CLK, ENABLE);
RCC_APB1PeriphClockCmd(GENERATOR_TIMER_CLK, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GENERATOR_PIN;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GENERATOR_PORT, &GPIO_InitStructure);
DAC_StructInit(&DAC_InitStructure);
DAC_InitStructure.DAC_Trigger = DAC_Trigger_None;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
DAC_Init(DAC_Channel_1, &DAC_InitStructure);
//delay_us(100);
DAC_Cmd(DAC_Channel_1, ENABLE);
DAC_SetChannel1Data(DAC_Align_12b_R, DAC_ZERO);
}
int main(void)
{
int32_t dac_data = 0;
int8_t inc_dir = 1;
char buffer[16];
RCC->AHBENR |= RCC_AHBENR_GPIOAEN; // enable the clock to GPIOA
RCC->AHBENR |= RCC_AHBENR_GPIOBEN; // enable the clock to GPIOB
RCC->AHBENR |= RCC_AHBENR_GPIOCEN; // enable the clock to GPIOC
// Put PORTC.8 in output mode
GPIOC->MODER |= (1 << 16);
// Put PORTC.9 in output mode
GPIOC->MODER |= (1 << 18);
// Put PORTA.0 in input mode
GPIOA->MODER &= ~(3 << 0);
// This configures interrupt such that SysTick_Handler is called
// at ever TIMER_TICK_HZ i.e. 1/1000 = 1ms
SysTick_Config(SystemCoreClock / TIMER_TICK_HZ);
// Initialize the lcd
lcd_init();
dac_init();
lcd_puts(" STM32F051");
lcd_gotoxy(1, 4);
lcd_puts("DAC TEST");
delay_ms(2000);
lcd_clear();
lcd_puts("DAC Value (PA4): ");
// Generate a step wave on DAC output whose amplitude is
// proportional to the voltage on ADC input.
while(1)
{
DAC_SetChannel1Data(DAC_Align_8b_R, dac_data);
DAC_SoftwareTriggerCmd(0, ENABLE);
dac_data += (10 * inc_dir);
if(dac_data > 255)
{
dac_data = 250;
inc_dir = -1;
}
else if(dac_data < 0)
{
dac_data = 0;
inc_dir = 1;
}
int_to_str(dac_data, 5, buffer, sizeof(buffer));
lcd_gotoxy(1, 0);
lcd_puts(buffer);
delay_ms(1000);
}
}
void DacInit(void)
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA1, ENABLE);
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_StructInit(&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL;
GPIO_Init(GPIOA, &GPIO_InitStructure);
DAC_InitTypeDef DAC_InitStructure;
DAC_StructInit(&DAC_InitStructure);
DAC_InitStructure.DAC_Trigger = DAC_Trigger_T2_TRGO;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
DAC_Init(DAC_Channel_1, &DAC_InitStructure);
DAC_Cmd(DAC_Channel_1, ENABLE);
DAC_SetChannel1Data(DAC_Align_12b_R, DAC_ZERO);
}
/**
* @brief DAC Channel2 Triangle and Channel1 Noise Configuration
* @param None
* @retval None
*/
static void DAC_Noise_TriangleConfig(void)
{
/* DAC channel2 Configuration */
DAC_InitStructure.DAC_Trigger = DAC_Trigger_T2_TRGO;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_Triangle;
DAC_InitStructure.DAC_LFSRUnmask_TriangleAmplitude = DAC_TriangleAmplitude_1023;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
DAC_Init(DAC_Channel_2, &DAC_InitStructure);
/* Enable DAC Channel2 */
DAC_Cmd(DAC_Channel_2, ENABLE);
/* Set DAC channel2 DHR12RD register */
DAC_SetChannel2Data(DAC_Align_12b_R, 0x100);
/* DAC channel1 Configuration */
DAC_InitStructure.DAC_Trigger = DAC_Trigger_T2_TRGO;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_Noise;
DAC_InitStructure.DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bits10_0;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
DAC_Init(DAC_Channel_1, &DAC_InitStructure);
/* Enable DAC Channel1 */
DAC_Cmd(DAC_Channel_1, ENABLE);
/* Set DAC Channel1 DHR12L register */
DAC_SetChannel1Data(DAC_Align_12b_L, 0x7FF0);
}
void stm32dac0(uint16_t t)
{
DAC_SetChannel1Data(DAC_Align_12b_R,(uint16_t)t);
DAC_SoftwareTriggerCmd(DAC_Channel_1,ENABLE);
if(t == 0) led(0,0);
else led(0,1);
}
//设置通道1输出电压
//vol:0~3300,代表0~3.3V
void Dac1_Set_Vol(u16 vol)
{
float temp=vol;
temp/=1000;
temp=temp*4096/3;
DAC_SetChannel1Data(DAC_Align_12b_R,temp);//12位右对齐数据格式设置DAC值
}
void CIO::interrupt()
{
uint8_t control = MARK_NONE;
uint16_t sample = DC_OFFSET;
uint16_t rawRSSI = 0U;
m_txBuffer.get(sample, control);
// Send the value to the DAC
DAC_SetChannel1Data(DAC_Align_12b_R, sample);
// Read value from ADC1 and ADC2
if ((ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET)) {
// shouldn't be still in reset at this point so null the sample value?
sample = 0U;
} else {
sample = ADC_GetConversionValue(ADC1);
#if defined(SEND_RSSI_DATA)
rawRSSI = ADC_GetConversionValue(ADC2);
#endif
}
// trigger next ADC1
ADC_ClearFlag(ADC1, ADC_FLAG_EOC);
ADC_SoftwareStartConv(ADC1);
m_rxBuffer.put(sample, control);
m_rssiBuffer.put(rawRSSI);
m_watchdog++;
}
void Dac1_Init(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
DAC_InitTypeDef DAC_InitType;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA, ENABLE ); //使能PORTA通道时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE ); //使能DAC通道时钟
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4; // 端口配置
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN; //模拟输入
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
//GPIO_SetBits(GPIOA,GPIO_Pin_4) ;//PA.4 输出高
DAC_InitType.DAC_Trigger=DAC_Trigger_None; //不使用触发功能 TEN1=0
DAC_InitType.DAC_WaveGeneration=DAC_WaveGeneration_None;//不使用波形发生
DAC_InitType.DAC_LFSRUnmask_TriangleAmplitude=DAC_LFSRUnmask_Bit0;//屏蔽、幅值设置
DAC_InitType.DAC_OutputBuffer=DAC_OutputBuffer_Disable ; //DAC1输出缓存关闭 BOFF1=1
DAC_Init(DAC_Channel_1,&DAC_InitType); //初始化DAC通道1
DAC_Cmd(DAC_Channel_1, ENABLE); //使能DAC1
DAC_SetChannel1Data(DAC_Align_12b_R, 0); //12位右对齐数据格式设置DAC值
}
void setup_dac(){
#if isUsingDevBoard
//Setup GPIO
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
DAC_InitTypeDef DAC_InitStructure;
/* DAC channel1 Configuration */
DAC_InitStructure.DAC_Trigger = DAC_Trigger_None;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bits10_0;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
DAC_Init(DAC_Channel_1, &DAC_InitStructure);
DAC_Init(DAC_Channel_2, &DAC_InitStructure);
/* Enable DAC Channel1 */
DAC_Cmd(DAC_Channel_1, ENABLE);
DAC_Cmd(DAC_Channel_2, ENABLE);
/* Set DAC Channel1 DHR12L register */
DAC_SetChannel1Data(DAC_Align_8b_R, 0x0000);
DAC_SetChannel2Data(DAC_Align_8b_R, 0x0000);
#else
#endif
}
//设置通道1输出电压
//vol:0~3300,代表0~3.3V
void Dac1_Set_Vol(u16 vol)
{
float temp=vol;
temp/=1000.000;
temp=temp*4095/3.3;
if(temp>4095) temp=4095;
DAC_SetChannel1Data(DAC_Align_12b_R,temp);//12位右对齐数据格式设置DAC值
}
static inline void dac_write(dac_t *obj, uint16_t value) {
if (obj->pin == PA_4) {
DAC_SetChannel1Data(DAC_Align_12b_R, value);
}
if (obj->pin == PA_5) {
DAC_SetChannel2Data(DAC_Align_12b_R, value);
}
}
/**
@brief Set DAC value
@param[in] n DAC channel
@param[in] v Value
*/
void dac_set(uint8_t n, uint16_t v)
{
if( n == 1 ) {
DAC_SetChannel1Data(DAC_Align_12b_R, v);
} else {
DAC_SetChannel2Data(DAC_Align_12b_R, v);
}
}
void setAnalogValue(uint8_t channel, uint16_t value){
/* assert_param(channel == 0 || channel == 1); */
/* assert_param((value & 0xfffff000) == 0); */
value = value & 0xfff;
if(channel == 0)
DAC_SetChannel1Data(DAC_Align_12b_R, value);
else if(channel == 1)
DAC_SetChannel2Data(DAC_Align_12b_R, value);
}
int _PUMP::Poll(void) {
int e=0;
if(timeout==INT_MAX)
DAC_SetChannel1Data(DAC_Align_12b_R,0);
else {
DAC_SetChannel1Data(DAC_Align_12b_R,__ramp(Th2o(),ftl*100,fth*100,fpl*0xfff/100,fph*0xfff/100));
if(tacho && pressure && current && __time__ > timeout) {
if(abs(tacho->Eval(Rpm()) - Tau()) > Tau()/10)
_SET_BIT(e,pumpTacho);
if(abs(pressure->Eval(Rpm()) - adf.cooler) > adf.cooler/10)
_SET_BIT(e,pumpPressure);
if(abs(current->Eval(Rpm()) - adf.Ipump) > adf.Ipump/10)
_SET_BIT(e,pumpCurrent);
}
if(__time__ % (5*(Tau()/100)) == 0)
_BLUE2(20);
}
return e;
}
void dac_set_b(uint16_t value){
value = 4095 - max(0, min(4095, value));
// pinMode(DAC2, OUTPUT);
#ifdef PHOTON_DAC
analogWrite(DAC2, value);
#else
/* Set the DAC Channel2 data */
DAC_SetChannel1Data(DAC_Align_12b_R, value);
#endif
}
/**
* @brief Generates the sine wave for the treble clef
* @retval None
*/
void Sin_gen(void){
if(score1note->noteName==0 && (Out==1024)) //check to see if at a rest
Out = 1024;
else
{
I0 = (I0+1)&0x1F; // 0 to 31 - for 1024 point sine wave
Out = wave[I0];
}
DAC_SetChannel1Data(DAC_Align_12b_R, (Out+Out2)/VolDiv);
}
/**
* @brief Generates the sine wave for the bass clef
* @retval None
*/
void Sin_gen2(void){
if(score2note->noteName==0 && (Out2==1024)) //check to see if at a rest
Out2 = 1024; //silence
else
{
I1 = (I1+1)&0x1F; // 0 to 31 - for 32 point sine wave
Out2 = wave[I1];
}
DAC_SetChannel1Data(DAC_Align_12b_R, (Out+Out2)/VolDiv);
}
int main(void)
{
uint16_t out = 0;
/* Configure ADC and DAC */
ADC_Config();
DAC_Config();
/* Loop forever */
while(1)
{
/* Test EOC flag */
while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);
/* Get ADC1 converted data */
ADC1ConvertedValue = ADC_GetConversionValue(ADC1);
Data = ADC1ConvertedValue;
/*
if( Data > 0x555 )
{
if( out < 0x0FFF )
{
out = out + 50;
}
}
else
{
out = 0;
}
*/
/* Output to DAC */
DAC_SetChannel1Data(DAC_Align_12b_R, Data);
} //end while
} //end main
/**
* @brief This function handles ADC1 global interrupts requests.
* @param None
* @retval None
*/
void ADC1_COMP_IRQHandler(void)
{
if(ADC_GetITStatus(ADC1, ADC_IT_EOC) != RESET)
{
/* Get converted value */
ADCVal = ADC_GetConversionValue(ADC1);
/* Output converted value on DAC_OUT1 */
DAC_SetChannel1Data(DAC_Align_12b_R, ADCVal);
/* Clear EOC Flag */
ADC_ClearITPendingBit(ADC1, ADC_IT_EOC);
}
}
/**
* @brief Nastavi vzorek na vystup
* @param uint16_t - hodnota, ktera se ma nastavit (v bitech)
* @retval None
*/
void DAC_set_sample(uint16_t sample)
{
/* Enable DMA2 Channel3 */
DMA_Cmd(DMA2_Channel3, DISABLE);
/* Enable DMA for DAC Channel2 */
DAC_DMACmd(DAC_Channel_1, DISABLE);
DAC_SetChannel1Data(DAC_Align_12b_R, sample);
dacState = DAC_RUN;
}
/**
* @brief Configure DAC peripheral
* @param None
* @retval None
*/
static void DAC_Config(void)
{
/* Init DAC channel 1 */
DAC_Init(DAC_Channel_1, DAC_Trigger_None, DAC_OutputBuffer_Disable);
/* Enable DAC channel 1 */
DAC_Cmd(DAC_Channel_1, ENABLE);
/* Set DAC Channel1 DHR register:
* DAC1 output = VREF * DOR / 256 = 3.3 * 116 / 256 = 1.5 V */
DAC_SetChannel1Data(DAC_Align_8b_R, 116);
/* Close I/O Switch 24 to select PE5 as comparator 2 non inverting input:
* External signal should be connected to PE5 */
SYSCFG_RIIOSwitchConfig(RI_IOSwitch_24, ENABLE);
}
/**
* @brief This function handles TIM6 global interrupt request.
* @param None
* @retval None
*/
void TIM6_IRQHandler(void)
{
if (TIM_GetITStatus(TIM6, TIM_IT_Update) != RESET)
{
/* Clear TIM6 update interrupt */
TIM_ClearITPendingBit(TIM6, TIM_IT_Update);
if ((Out_Data_Offset < In_Data_Offset) && ((uint8_t)(MUTE_DATA) == 0))
{
/* Set DAC Channel1 DHR register */
DAC_SetChannel1Data(DAC_Align_8b_R, Stream_Buff[Out_Data_Offset]);
Out_Data_Offset++;
}
}
}
void TIM2_IRQHandler(void) //TIM2中断
{ static u16 i=0;
if (TIM_GetITStatus(TIM2, TIM_IT_Update) != RESET) //检查指定的TIM中断发生与否:TIM 中断源
{
//PE_OUT(1);
TIM_ClearITPendingBit(TIM2, TIM_IT_Update ); //清除TIMx的中断待处理位:TIM 中断源
GUI_TOUCH_Exec();
// GUI_Exec();
// Sin_Data[i]=100*sin((double)(i*3.14/40))+200;if (i == 1024) i = 0;
//PE_OUT(0);
// DAC_SetChannel1Data(DAC_Align_12b_R,1000+2000*sin((double)(i*3.14/40)));
DAC_SetChannel1Data(DAC_Align_12b_R,10);
i++;
if (i == 80) i = 0;
}
}
void DMA1_Channel1_IRQHandler(void)
{
/* Test DMA1 TC flag */
if((DMA_GetFlagStatus(DMA1_FLAG_TC1)) != RESET )
{
/* Clear DMA TC flag */
DMA_ClearFlag(DMA1_FLAG_TC1);
if(Motor_State==INIT)
{
ADCTemp_Init(ADC_Tab);
}
else
{
LED1_ON();
SensorlessFOCRUN();
LED1_OFF();
}
SVM_Angle=smc1.Theta;
//DAC_SetChannel1Data(DAC_Align_12b_R,SVM_Angle/16);
DAC_SetChannel1Data(DAC_Align_12b_R,ADC_Tab[IB_Channl]);
if(++T2ms_Temp>T2MSTEMP) //2ms
{
T2ms_Temp=0;
T2ms_Flag=1;
Error_OMEGA=smc1.Omega-OMEGA_Old;
OMEGA_Old=smc1.Omega;
if(uGF.bit.RunMotor&&(uGF.bit.OpenLoop==0)) //ÅжÏÕýÐþÕðµ´
{
if(_Q15abs(Error_OMEGA)>ERROROMEGAMIN)
{
uGF.bit.RunMotor = 0;
uGF.bit.MotorFail = 1;
}
}
}else{}
if(++T100ms_Temp>T100MSTEMP) //100ms
{
T100ms_Temp=0;
T100ms_Flag=1;
}else{}
}
}
void Offset_Measurement_On(void)
{
/*DAC DMA request disable to measure the dark detector output*/
DAC_DMACmd(DAC_Channel_1, DISABLE);
/*MHP Off*/
DAC_SetChannel1Data(DAC_Align_12b_R, 0);
/*DMA2 interrupt will not disable ADC3 because triggering is not needed for
offset measurement*/
offset_meas = 1;
/*ADC3 is ENABLED because triggering from the DAC output is not needed*/
//ADC_Cmd(ADC3, ENABLE);
ADC_DMACmd(ADC3, ENABLE);
old_sampl_freq = GetSamplFreq();
/*4000 samples per second: we need to wait 0.25 seconds to fill the
1000 elements buffer*/
SetSamplFreq(4000);
}
// initValue - 0 - 4095
void Init_DAC_1(int initValue)
{
DAC_InitTypeDef DAC_InitStructure;
//Set DAC clock
RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE);
/* DAC channel1 Configuration */
DAC_InitStructure.DAC_Trigger = DAC_Trigger_Software;
DAC_InitStructure.DAC_WaveGeneration = DAC_WaveGeneration_None;
DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
DAC_DeInit();
DAC_Init(DAC_Channel_1, &DAC_InitStructure);
DAC_Cmd(DAC_Channel_1, ENABLE);
DAC_SetChannel1Data(DAC_Align_12b_R, initValue);
DAC_SoftwareTriggerCmd(DAC_Channel_1, ENABLE);
}