Generating X/Y from ADC Samples

[Marchel]

Hi


I want to ask if anyone can advise me any good method on how to get the X/Y axis from ADC samples. In my project I collect 4 samples which I think is enough to generate X/Y I think about mathematical functions sin cos but I'm not sure how to use them exactly.

[Carl-NC]

You'll need to provide more information. What circuit? What are you sampling?

[Marchel]

The project is based on STM32G4 I am adding a few lines of code which runs in timer 3 and makes 4 samples from the ADC input it all works I would just like to know how to create two X/Y signals shifted by 90 degrees

#define SAMPLES 4
int8_t cnt = -1;
int32_t ADC_Samples[SAMPLES];


void TIM3_IRQHandler(void){


HAL_TIM_IRQHandler(&htim3);
cnt++;

ADC_Samples[cnt] = aADCxConvertedData[cnt];

if(cnt == SAMPLES -1){
cnt = -1;
}
}