dear experts i am working on stm32f030c6t6 MCU
i want to calculate the adc measurement of sine wave form at Gpio pin and that gpio pin has a adc channel also i am using the DMA
here i am using another Adc channel for other purpose please check my code
here i am using another adc channels for other purpose please check my code is there any adc values are mixing with another gpio pin adc values i am using DMA
i am collecting the adc samples of sine wave at gpio pin and i have done my calculation they are good enough but problem is taking the data from ADC DR register there are different channels which i am using in my MCU there is no rank option to select the adc channel priority
Dear experts please help me
void ADC_Calculation(void)
{
res1=0;
HAL_GPIO_TogglePin(GPIOB,GPIO_PIN_14);
/*****************ADC_DR collection************/
for(int i=0;i<100;i++)
{
HAL_ADC_Start_DMA(&hadc,adc,5);
if(adc[1]>res1)
res1=adc[1];
temp2[i]=adc[2];
temp3[i]=adc[3];
temp4[i]=adc[4];
HAL_Delay(1);
}
/*****************ADC_DR collection************/
/*************** Calculations ****************/
sum_b = 0;
for(int i=0;i<100;i++)
sum_b += temp2[i];
sum_b = sum_b/100;
V_Bat = (sum_b*3.3)/4095;
sum_v = 0;
for(int i=0;i<100;i++)
sum_v += temp3[i];
sum_v = sum_v/100;
voltage = (sum_v*3.3)/4095;
sum_i = 0;
for(int i=0;i<100;i++)
sum_i += temp4[i];
sum_i = sum_i/100;
current = (sum_i*3.3)/4095;
max =(res1*3.3)/4095; //12bit resolution
max=max-1.65; //shifting value
max=max/0.00197; //gain
vrms=max*.707106781;
Temperature = adc[0];
