Arduino for STM32

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#include <stm32yyxx_ll_adc.h>
#include <stdio.h>
#include <math.h>

const int totalSensingLines = 8;    
const int currentLines[totalSensingLines] = { PA0, PA1, PA2, PA3, PA4, PA5, PA6, PA7 }; 

void setup()
{
  analogReadResolution(12); // set resolution to 12-bit
  for (int i = 0; i < totalSensingLines; i++) {
    pinMode(currentLines[i], INPUT);
  }
}


void loop()
{
  read_lines(currentReadings, totalSensingLines);
}


void read_lines(double *buf, int buffSize) {
  double samples[buffSize] = {0.0};
  double vout[buffSize] = {0.0};
  int totalSamples = 10;
  double thisPeak = 0.0;

  // Take Samples
  for (int i = 0; i < totalSamples; i++) {
    for (int k = 0; k < buffSize; k++) {
      thisPeak = analogRead(currentLines[k]);
      if (thisPeak > samples[k]) {
        samples[k] = thisPeak;
      }
    }
  }

  // Calculate Reading
  for (int i = 0; i < buffSize; i++) {
    vout[i] = samples[i] * (3.3 / 4096.0);
    buf[i] = (abs((1.65 - vout[i]) / 0.044)) / sqrt(2); 
  }
}

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pinMode(pin, INPUT_ANALOG);
uint16_t adc_val = analogRead(pin);

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/*
  hacked by Ray Burnette to loop through all analog values
  Board view: http://letsmakerobots.com/files/maplemini2.jpg  
  Quote from old Maple Mini doc by Leaflabs "Maple Mini has an electrically 
    isolated analog power plane with its own regulator, and a geometrically
    isolated ground plane, connected to the digital plane by an inductor. 
    Its analog input pins, D3 — D11, are laid out to correspond with these 
    analog planes, and our measurements indicate that they generally offer
    low noise ADC performance. However, analog performance may vary depending 
    upon the activity of the other GPIOs. Consult the Maple Mini hardware 
    design files for more details."
    Arduino 1.7.8 on Linux Mint 17.3 tested on 20160215
      Sketch uses 13,948 bytes (12%) of program storage space. Maximum is 110,592 bytes.
      Global variables use 2,560 bytes of dynamic memory.
*/

int aValue ;
int settlingmS = 5000;

void setup() {
    // Configure the ADC pins
    for (int x =3; x < 12; x++) {
      pinMode(x, INPUT_ANALOG);
    }
  delay(settlingmS);
}

void loop() {
  for ( int analogInPin = 3; analogInPin < 12; analogInPin++)
  {
    // read the analog in value:
    aValue = analogRead(analogInPin);
    // print the results to the serial monitor:
    Serial.print("Analog pin#");
    Serial.print(analogInPin);
    Serial.print("\t = ");
    Serial.println(aValue);
  }
  delay(settlingmS);
}