/* USER CODE BEGIN Header */
/**
 ******************************************************************************
 * @file           : main.c
 * @brief          : Main program body
 ******************************************************************************
 * @attention
 *
 * Copyright (c) 2025 STMicroelectronics.
 * All rights reserved.
 *
 * This software is licensed under terms that can be found in the LICENSE file
 * in the root directory of this software component.
 * If no LICENSE file comes with this software, it is provided AS-IS.
 *
 ******************************************************************************
 */
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "adc.h"
#include "crc.h"
#include "dac.h"
#include "dma.h"
#include "usart.h"
#include "gpio.h"

/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
#include "printf.h"
#include <string.h>
#include "uart5_it.h"
#include "stm32f3xx_it.h"
/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/
/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/
/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */

/***************************************************************************//**
 * @brief Character send interface for printf function
 *//****************************************************************************/
void uart_putc(void *p, char c) {
   Uart5_PutByte(c);
}

/* USER CODE END 0 */

/**
 * @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 */

   /* USER CODE END Init */

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

   /* USER CODE BEGIN SysInit */
   //SysTick_Config(SystemCoreClock / 1000);
   /* USER CODE END SysInit */

   /* Initialize all configured peripherals */
   MX_GPIO_Init();
   MX_DMA_Init();
   MX_ADC1_Init();
   MX_CRC_Init();
   MX_DAC1_Init();
   MX_UART5_Init();
   MX_USART2_UART_Init();
   MX_USART3_UART_Init();
   /* USER CODE BEGIN 2 */
   Uart5_Init();
   init_printf(NULL, &uart_putc);   // connect printf to UART
   printf("Nucleo-F303RE board\n");
   /* USER CODE END 2 */

   /* Infinite loop */
   /* USER CODE BEGIN WHILE */
   while (1) {

      int c = Uart5_GetByte();
      if (c != -1) {                         // new incoming data
         Uart5_PutByte(c);                   // UART5rx --> UART5tx
         LL_GPIO_TogglePin(GPIOA, LL_GPIO_PIN_5);
         printf(" %u ms\n", SysTimeGetAbs());
      }

      /* USER CODE END WHILE */

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

/**
 * @brief System Clock Configuration
 * @retval None
 */
void SystemClock_Config(void) {
   LL_FLASH_SetLatency(LL_FLASH_LATENCY_1);
   while (LL_FLASH_GetLatency() != LL_FLASH_LATENCY_1) {
   }
   LL_RCC_HSE_Enable();

   /* Wait till HSE is ready */
   while (LL_RCC_HSE_IsReady() != 1) {

   }
   LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLL_MUL_5,
         LL_RCC_PREDIV_DIV_1);
   LL_RCC_PLL_Enable();

   /* Wait till PLL is ready */
   while (LL_RCC_PLL_IsReady() != 1) {

   }
   LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
   LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_2);
   LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_1);
   LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);

   /* Wait till System clock is ready */
   while (LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL) {

   }
   LL_SetSystemCoreClock(40000000);

   /* Update the time base */
   if (HAL_InitTick(TICK_INT_PRIORITY) != HAL_OK) {
      Error_Handler();
   }
   LL_RCC_SetUSARTClockSource(LL_RCC_USART2_CLKSOURCE_SYSCLK);
   LL_RCC_SetUSARTClockSource(LL_RCC_USART3_CLKSOURCE_SYSCLK);
   LL_RCC_SetUARTClockSource(LL_RCC_UART5_CLKSOURCE_PCLK1);
   LL_RCC_SetADCClockSource(LL_RCC_ADC12_CLKSRC_PLL_DIV_1);
}

/* 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 */
   __disable_irq();
   while (1) {
   }
   /* 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,
     ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
  /* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */