#include "main.h"


UART_HandleTypeDef huart2;

void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART2_UART_Init(void);

int main(void){

 int iState =0;

 uint32_t t1;
 uint32_t t2;
 uint32_t dt;

 HAL_Init();

  SystemClock_Config();

  MX_GPIO_Init();
  MX_USART2_UART_Init();
 
  while (1){
	  switch(iState){
	  case 0:
		  HAL_UART_Transmit(&huart2, "State: 0 \n\r", 15 , 1000);
		  t1 = HAL_GetTick();
		  iState = 1;
		  break;

	  case 1:
		  t2 = HAL_GetTick();
		  dt = t2-t1;
		  if(dt > 5000){
			  iState = 3;
		  }
		  break;
	  case 3:
		  HAL_UART_Transmit(&huart2, "State: 3 \n\r", 15,1000);
		  iState = 5;
		  break;

	  case 5:
		  t1 = HAL_GetTick();
		  iState = 6;
		  break;

	  case 6:
		  t2 = HAL_GetTick();
		  dt = t2-t1;
		  if(dt > 5000){
			  iState = 7;
		  }
		  break;

	  case 7:
		  HAL_UART_Transmit(&huart2, "State: 7 \n\r", 15,1000);
		  iState = 10;
		  break;

	  case 10:
		  t1 = HAL_GetTick();
		  iState = 11;
		  break;

	  case 11:
		  t2 = HAL_GetTick();
		  dt = t2-t1;
		  if(dt > 5000){
			  iState = 15;
		  }
		  break;

	  case 15:
		  t1 = HAL_GetTick();
		  HAL_UART_Transmit(&huart2, "State: 15 \n\r", 15,1000);
		  iState = 20;
		  break;

	  case 20:
		  t2 = HAL_GetTick();
		  dt = t2-t1;
		  if(dt > 5000){
			  iState = 25;
		  }
		  break;

	  case 25:
		  HAL_UART_Transmit(&huart2, "State: 25 \n\r", 15,1000);
		  iState = 30;
		  break;

	  case 30:
		 //if(MainBuf[0] == '1'){
			  iState = 35;
		  //}
		  break;

	  case 35:
		  HAL_UART_Transmit(&huart2, "State: 35 \n\r", 15,1000); //keine Pause zur letzen Ausgabe
		  iState = 40;
		  break;

	  case 40:
		  HAL_UART_Transmit(&huart2, "State: 40 \n\r", 15,1000); //keine Pause zur letzen Ausgabe
		  iState = 45;
		  break;

	  case 45:
		  break;
	  }
  }
}


void SystemClock_Config(void)
{
  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
  RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }


  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI48;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
  {
    Error_Handler();
  }
  PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART2;
  PeriphClkInit.Usart2ClockSelection = RCC_USART2CLKSOURCE_PCLK1;
  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
  {
    Error_Handler();
  }
}


static void MX_USART2_UART_Init(void)
{

  /* USER CODE BEGIN USART2_Init 0 */

  /* USER CODE END USART2_Init 0 */

  /* USER CODE BEGIN USART2_Init 1 */

  /* USER CODE END USART2_Init 1 */
  huart2.Instance = USART2;
  huart2.Init.BaudRate = 9600;
  huart2.Init.WordLength = UART_WORDLENGTH_8B;
  huart2.Init.StopBits = UART_STOPBITS_1;
  huart2.Init.Parity = UART_PARITY_NONE;
  huart2.Init.Mode = UART_MODE_TX_RX;
  huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
  huart2.Init.OverSampling = UART_OVERSAMPLING_16;
  huart2.Init.OneBitSampling = UART_ONE_BIT_SAMPLE_DISABLE;
  huart2.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_NO_INIT;
  if (HAL_UART_Init(&huart2) != HAL_OK)
  {
    Error_Handler();
  }


}


static void MX_GPIO_Init(void)
{
  GPIO_InitTypeDef GPIO_InitStruct = {0};
/* USER CODE BEGIN MX_GPIO_Init_1 */
/* USER CODE END MX_GPIO_Init_1 */

  /* GPIO Ports Clock Enable */
  __HAL_RCC_GPIOC_CLK_ENABLE();
  __HAL_RCC_GPIOF_CLK_ENABLE();
  __HAL_RCC_GPIOA_CLK_ENABLE();

  /*Configure GPIO pin Output Level */
  HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);

  /*Configure GPIO pin : B1_Pin */
  GPIO_InitStruct.Pin = B1_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);

  /*Configure GPIO pin : LD2_Pin */
  GPIO_InitStruct.Pin = LD2_Pin;
  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
  GPIO_InitStruct.Pull = GPIO_NOPULL;
  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
  HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct);

}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */


void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */
  __disable_irq();
  while (1)
  {
  }
  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT

void assert_failed(uint8_t *file, uint32_t line)
{
  
}
#endif /* USE_FULL_ASSERT */