Untitled

                Never    
C
       
#include "main.h"
#include "usart.h"
#include "gpio.h"
#include "string.h"
void SystemClock_Config(void);


volatile uint8_t recv_char;
volatile uint16_t RxCounter;
volatile char RxBuffer[256];
volatile char RxBuffer_Tx_Send[256];
int temp;


int main(void)
{

  HAL_Init();
  SystemClock_Config();

  MX_GPIO_Init();
  MX_USART1_UART_Init();
  MX_USART2_UART_Init();

  for(uint8_t temp=0; temp<256; temp++)
  	{
  		RxBuffer[temp] = '\0';
  		RxBuffer_Tx_Send[temp] = '\0';
  	}

  HAL_UART_Receive_IT(&huart1, &recv_char, 1);

  while (1)
  {
    /* USER CODE END WHILE */
	  HAL_UART_Transmit(&huart2, RxBuffer_Tx_Send, strlen(RxBuffer_Tx_Send), 256);
	  HAL_Delay(1000);
  }
}

void NMEA_Handler(void)
{
int i = 0;
RxBuffer[RxCounter] = recv_char;
RxCounter++;
if (
		(RxBuffer[RxCounter - 2] != '\r') &&
		(RxBuffer[RxCounter - 1] != '\n') &&
		(RxCounter == 255)
	)
	{RxCounter = 253;}
else if (
	(RxBuffer[RxCounter -2] != '\r') &&
	(RxBuffer[RxCounter -1] != '\n')
	)
	{
if(RxBuffer[0] == '$')
{
	for(i=0; i<256; i++)
	{
		 RxBuffer_Tx_Send[i] = RxBuffer[i];
		 RxBuffer[i] = 0;
	}
	RxCounter = 0;
}
else
{
	for(i=0; i<256; i++)
	{RxBuffer[i] = 0;}
	RxCounter = 0;
}
}



}

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

  /** Configure the main internal regulator output voltage 
  */
  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
  /** Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL4;
  RCC_OscInitStruct.PLL.PLLDIV = RCC_PLL_DIV2;
  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
  {
    Error_Handler();
  }
  /** Initializes the CPU, AHB and APB busses clocks 
  */
  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
  {
    Error_Handler();
  }
}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**
  * @brief  This function is executed in case of error occurrence.
  * @retval None
  */
void Error_Handler(void)
{
  /* USER CODE BEGIN Error_Handler_Debug */
  /* User can add his own implementation to report the HAL error return state */

  /* USER CODE END Error_Handler_Debug */
}

#ifdef  USE_FULL_ASSERT
/**
  * @brief  Reports the name of the source file and the source line number
  *         where the assert_param error has occurred.
  * @param  file: pointer to the source file name
  * @param  line: assert_param error line source number
  * @retval None
  */
void assert_failed(uint8_t *file, uint32_t line)
{ 
  /* USER CODE BEGIN 6 */
  /* User can add his own implementation to report the file name and line number,
     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

Raw Text