void gather_adc_values(void)
{
static uint8_t last_step = 0;
// TIM1 CC4 occuer
adc_buffer_for_mosfet_test[126] = DMA1_Channel1->CNDTR;
TP3_SET;
ADC_StopOfConversion(ADC1);
ADC_DMACmd(ADC1, DISABLE);
// reset the DMA
DMA_Cmd(DMA1_Channel1, DISABLE);
//DMA_DeInit(DMA1_Channel1);
DMA_ClearFlag(DMA1_FLAG_GL1);
// DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)ADC1_DR_Address;
// DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)adc_buffer_for_mosfet_test;
// DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
// DMA_InitStructure.DMA_BufferSize = 25;
// 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_Normal;
// DMA_InitStructure.DMA_Priority = DMA_Priority_High;
// DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
//DMA_Init(DMA1_Channel1, &DMA_InitStructure);
DMA1_Channel1->CNDTR = 50;
adc_buffer_for_mosfet_test[127] = ADC1->DR;
DMA_Cmd(DMA1_Channel1, ENABLE);
ADC_DMACmd(ADC1, ENABLE);
ADC_StartOfConversion(ADC1);
adc_buffer_for_mosfet_test[127] = DMA1_Channel1->CNDTR;
if(last_step == mosfet_test_step){
if(mosfet_test_step == 1){
adc_buffer_for_mosfet_test[50] = adc_buffer_for_mosfet_test[0];
adc_buffer_for_mosfet_test[51] = adc_buffer_for_mosfet_test[1];
adc_buffer_for_mosfet_test[52] = adc_buffer_for_mosfet_test[2];
}else{
adc_buffer_for_mosfet_test[100] = adc_buffer_for_mosfet_test[0];
adc_buffer_for_mosfet_test[101] = adc_buffer_for_mosfet_test[1];
adc_buffer_for_mosfet_test[102] = adc_buffer_for_mosfet_test[2];
}
}
last_step = mosfet_test_step;
TP3_RESET;
}
/**
* @brief analogRead Read GPIO Arduino pin value
* @param pin number
* @retval 0 to max STM32 ADC value
*/
uint16_t analogRead(uint16_t pin){
uint16_t L_oldType = ArduinoPort[pin].PinMode; //Does the pin already configured?
uint32_t L_adcChannel;
uint16_t L_ADCConvertedValue=0;
/* Check the parameters */
assert_param(IS_ADC_PIN(pin));
switch(pin){
//pin to configure or to get value from
case A0:
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
L_adcChannel = ADC_Channel_10;
break;
case A1:
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
L_adcChannel = ADC_Channel_11;
break;
case A2:
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
L_adcChannel = ADC_Channel_12;
break;
case A3:
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
L_adcChannel = ADC_Channel_13;
break;
case A4:
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
L_adcChannel = ADC_Channel_14;
break;
case A5:
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5;
L_adcChannel = ADC_Channel_15;
break;
default:
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
L_adcChannel = ADC_Channel_10;
break;
}
if(L_oldType != INPUT_AN) {
//Pin was not correctly configured! Do it first!
//ADC Config
RCC_APB2PeriphClockCmd(RCC_APB2Periph_ADC1, ENABLE);
ADC_DeInit(ADC1);
ADC_StructInit(&ADC_InitStructure);
ADC_InitStructure.ADC_ContinuousConvMode = ENABLE;
/* GPIOC config for ADC */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOC, ENABLE);
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AN;
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_NOPULL ;
//Config pin as AN
GPIO_Init(GPIOC, &GPIO_InitStructure);
//Config ADC
ADC_Init(ADC1, &ADC_InitStructure);
/* ADC Calibration */
ADC_GetCalibrationFactor(ADC1);
ADC_Cmd(ADC1, ENABLE);
/* Wait the ADCEN falg */
while(!ADC_GetFlagStatus(ADC1, ADC_FLAG_ADEN));
//Pin is configured as ADC INPUT now.
ArduinoPort[pin].PinMode = INPUT_AN;
}
//Select channel to scan
ADC_ChannelConfig(ADC1, L_adcChannel , ADC_SampleTime_239_5Cycles);
// ADC1 regular Software Start Conv
ADC_StartOfConversion(ADC1);
// Wait for end of conversion
while(ADC_GetFlagStatus(ADC1, ADC_FLAG_EOC) == RESET);
//Get value
L_ADCConvertedValue = ADC_GetConversionValue(ADC1);
//Stop conversion and return ADC value.
ADC_StopOfConversion(ADC1);
return(L_ADCConvertedValue);
}