#include <stdio.h>
#include <stdint.h>
#include <string.h>
#include <stm32l0xx_hal.h>

#define LED_PORT GPIOB
#define LED_PIN GPIO_PIN_3
#define LED_PORT_CLK_ENABLE __HAL_RCC_GPIOB_CLK_ENABLE
#define VCP_TX_Pin GPIO_PIN_2
#define VCP_RX_Pin GPIO_PIN_15

UART_HandleTypeDef huart2;

void SystemClock_conf(void);
static void MX_USART2_UART_Init(void);

void osSystickHandler(void){
  if ((HAL_GetTick() % 500) == 0){
      HAL_GPIO_TogglePin(LED_PORT, LED_PIN);
  }

}

void initGPIO(){
  GPIO_InitTypeDef GPIO_Config;
  GPIO_Config.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_Config.Pull = GPIO_NOPULL;
  GPIO_Config.Speed = GPIO_SPEED_FREQ_HIGH;

  GPIO_Config.Pin = LED_PIN;

  LED_PORT_CLK_ENABLE();
  HAL_GPI_Init(LED_PORT, &GPIO_Config);

  __HAL_RCC_GPIOB_CLK_ENABLE();

}

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  Serial.println("Hello, STM32!");
}

void loop() {
  // put your main code here, to run repeatedly:
  delay(10); // this speeds up the simulation
}