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`/* USER CODE BEGIN Header / /*

---

• @file : main.c
• @brief : Main program body

---

• @attention
• Copyright (c) 2024 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 "tm1637.h" //#include "core_cm4.h" / Private includes ----------------------------------------------------------/ / USER CODE BEGIN Includes / tm1637_t disp; / USER CODE END Includes */

/* Private typedef -----------------------------------------------------------/ / USER CODE BEGIN PTD / const uint8_t seg_LOAD[4] = {0x38, 0x5c, 0x77, 0x5e}; // display LOAD / 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 ---------------------------------------------------------*/ TIM_HandleTypeDef htim4;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------/ void SystemClock_Config(void); static void MX_GPIO_Init(void); static void MX_TIM4_Init(void); / USER CODE BEGIN PFP */

/* USER CODE END PFP */

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

/* 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 */

/* USER CODE END SysInit */

/* Initialize all configured peripherals / MX_GPIO_Init(); MX_TIM4_Init(); / USER CODE BEGIN 2 */

tm1637_init(&disp, GPIOB, GPIO_PIN_12, GPIOA, GPIO_PIN_7); // tm1637Init(); /* USER CODE END 2 */ //tm1637_init(&disp, CLK1_GPIO_Port, CLK1_Pin, DIO1_GPIO_Port, DIO1_Pin);

//tm1637_brightness(&disp, 7);

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

/* USER CODE BEGIN 3 */

   // HAL_Delay(2000);
   // tm1637_write_int(&disp, 56, 0);
//    HAL_Delay(2000);

  tm1637_write_segment(&disp, seg_LOAD, 4, 0);
      HAL_Delay(1000);
      tm1637_write_float(&disp, -1.23, 2, 0);
      HAL_Delay(1000);
      tm1637_write_int(&disp, 56, 0);

} /* USER CODE END 3 */ }

/**

• @brief System Clock Configuration
• @retval None */ void SystemClock_Config(void) { RCC_OscInitTypeDef RCC_OscInitStruct = {0}; RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

/** Initializes the RCC Oscillators according to the specified parameters

• in the RCC_OscInitTypeDef structure. */ RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; RCC_OscInitStruct.HSEState = RCC_HSE_ON; RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1; RCC_OscInitStruct.HSIState = RCC_HSI_ON; RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9; if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) { Error_Handler(); }

/** Initializes the CPU, AHB and APB buses 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_2) != HAL_OK) { Error_Handler(); } }

/**

• @brief TIM4 Initialization Function
• @param None
• @retval None */ static void MX_TIM4_Init(void) {

/* USER CODE BEGIN TIM4_Init 0 */

/* USER CODE END TIM4_Init 0 */

TIM_ClockConfigTypeDef sClockSourceConfig = {0}; TIM_MasterConfigTypeDef sMasterConfig = {0};

/* USER CODE BEGIN TIM4_Init 1 */

/* USER CODE END TIM4_Init 1 / htim4.Instance = TIM4; htim4.Init.Prescaler = 72-1; htim4.Init.CounterMode = TIM_COUNTERMODE_UP; htim4.Init.Period = 1; htim4.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1; htim4.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE; if (HAL_TIM_Base_Init(&htim4) != HAL_OK) { Error_Handler(); } sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL; if (HAL_TIM_ConfigClockSource(&htim4, &sClockSourceConfig) != HAL_OK) { Error_Handler(); } sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET; sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE; if (HAL_TIMEx_MasterConfigSynchronization(&htim4, &sMasterConfig) != HAL_OK) { Error_Handler(); } / USER CODE BEGIN TIM4_Init 2 */

/* USER CODE END TIM4_Init 2 */

}

/**

• @brief GPIO Initialization Function
• @param None
• @retval None / static void MX_GPIO_Init(void) { / USER CODE BEGIN MX_GPIO_Init_1 / / USER CODE END MX_GPIO_Init_1 */

/* GPIO Ports Clock Enable */ __HAL_RCC_GPIOD_CLK_ENABLE(); __HAL_RCC_GPIOA_CLK_ENABLE();

/* USER CODE BEGIN MX_GPIO_Init_2 / / USER CODE END MX_GPIO_Init_2 */ }

/* 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 */ `