/**
* @brief  The application entry point.
* @retval int
*/
int main(void) {
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/

/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();

/* USER CODE BEGIN Init */

uint16_t raw;
char buf[40];
uint16_t AD_RES = 0;

/* USER CODE END Init */

/* Configure the system clock */
SystemClock_Config();

/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */

/* Initialize all configured peripherals */

MX_GPIO_Init();
MX_USART2_UART_Init();
MX_ADC1_Init();

/* USER CODE BEGIN 2 */

/* USER CODE END 2 */

/* Infinite loop */
/* USER CODE BEGIN WHILE */

while (1) {

HAL_ADC_Start(&hadc1);
HAL_ADC_PollForConversion(&hadc1, HAL_MAX_DELAY);
raw = HAL_ADC_GetValue(&hadc1);

sprintf(buf, "%hu\r\n", raw);
HAL_UART_Transmit(&huart2, (uint8_t*)buf, strlen((char*) buf), HAL_MAX_DELAY);
HAL_Delay(1);

/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
}
/* USER CODE END 3 */
}
        
    

                
int scale = 3; // 3 (±3g) for ADXL337, 200 (±200g) for ADXL377

void setup()
{
// Initialize serial communication at 115200 baud
Serial.begin(115200);
}

// Read, scale, and print accelerometer data
void loop()
{
// Get raw accelerometer data for each axis
int rawX = analogRead(A0);
int rawY = analogRead(A1);
int rawZ = analogRead(A2);
// Scale accelerometer ADC readings into common units
// Scale map depends on if using a 5V or 3.3V microcontroller
float scaledX, scaledY, scaledZ; // Scaled values for each axis
scaledX = mapf(rawX, 0, 675, -scale, scale); // 3.3/5 * 1023 =~ 675
scaledY = mapf(rawY, 0, 675, -scale, scale);
scaledZ = mapf(rawZ, 0, 675, -scale, scale);
// Print out raw X,Y,Z accelerometer readings
Serial.print("X: ");
Serial.print(rawX);
Serial.print(" ");
Serial.print(scaledX);
Serial.print(" Y: ");
Serial.print(rawY);
Serial.print(" ");
Serial.print(scaledY);
Serial.print(" Z: ");
Serial.print(rawZ);
Serial.print(" ");
Serial.print(scaledZ);
Serial.println();
delay(20); // Minimum delay of 2 milliseconds between sensor reads (500 Hz)
}
// Same functionality as Arduino's standard map function, except using floats
float mapf(float x, float in_min, float in_max, float out_min, float out_max)
{
return (x - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}