Diff: stm32g031_i2c_1/main.c

Revision:

17:0379bd4fea21

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/stm32g031_i2c_1/main.c	Sun Dec 05 07:59:53 2021 +0000
@@ -0,0 +1,291 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : main.c
+  * @brief          : Main program body
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; Copyright (c) 2021 STMicroelectronics.
+  * All rights reserved.</center></h2>
+  *
+  * This software component is licensed by ST under BSD 3-Clause license,
+  * the "License"; You may not use this file except in compliance with the
+  * License. You may obtain a copy of the License at:
+  *                        opensource.org/licenses/BSD-3-Clause
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+
+/* 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 ---------------------------------------------------------*/
+I2C_HandleTypeDef hi2c2;
+
+/* USER CODE BEGIN PV */
+
+/* USER CODE END PV */
+
+/* Private function prototypes -----------------------------------------------*/
+void SystemClock_Config(void);
+static void MX_GPIO_Init(void);
+static void MX_I2C2_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_I2C2_Init();
+  /* USER CODE BEGIN 2 */
+
+
+
+    //I2Cアドレス
+    const int ADDR_LCD   = 0x7C; //  address
+
+    //液晶の初期化の文字列
+    uint8_t INIT_com[]= {
+        0x0,0x38,
+        0x0,0x39,
+        0x0,0x4,
+        0x0,0x14,
+        0x0,0x70,
+        0x0,0x56,
+        0x0,0x6C,
+        0x0,0x38,
+        0x0,0xC,
+        0x0,0x1,
+        0x40,0x41
+    };//INIT_com
+
+    //画面のクリア
+    uint8_t INIT_cls[]= {0x0,0x1};
+
+    //液晶の初期化
+    HAL_Delay(200); //液晶の安定待ち
+    for(int ii=0; ii<11; ii++) {
+        HAL_I2C_Master_Transmit(&hi2c2, ADDR_LCD, &INIT_com[ii*2], 2, 3000);
+        HAL_Delay(3);
+    } //for
+
+    //液晶のクリア
+    HAL_I2C_Master_Transmit(&hi2c2, ADDR_LCD, INIT_cls, 2, 3000);
+    HAL_Delay(3);
+
+    //HELLOを表示
+    uint8_t dat[]="@H@E@L@L@O";
+    for(int ii=0; ii < 5 ; ii++) {
+        HAL_I2C_Master_Transmit(&hi2c2, ADDR_LCD, &dat[ii*2],  2, 3000);
+        HAL_Delay(1);
+     }//for
+
+
+
+
+
+  /* USER CODE END 2 */
+
+  /* Infinite loop */
+  /* USER CODE BEGIN WHILE */
+  while (1)
+  {
+    /* USER CODE END WHILE */
+
+    /* USER CODE BEGIN 3 */
+  }
+  /* USER CODE END 3 */
+}
+
+/**
+  * @brief System Clock Configuration
+  * @retval None
+  */
+void SystemClock_Config(void)
+{
+  RCC_OscInitTypeDef RCC_OscInitStruct = {0};
+  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
+
+  /** Configure the main internal regulator output voltage
+  */
+  HAL_PWREx_ControlVoltageScaling(PWR_REGULATOR_VOLTAGE_SCALE1);
+  /** Initializes the RCC Oscillators according to the specified parameters
+  * in the RCC_OscInitTypeDef structure.
+  */
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
+  RCC_OscInitStruct.HSIState = RCC_HSI_ON;
+  RCC_OscInitStruct.HSIDiv = RCC_HSI_DIV1;
+  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
+  RCC_OscInitStruct.PLL.PLLM = RCC_PLLM_DIV1;
+  RCC_OscInitStruct.PLL.PLLN = 8;
+  RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
+  RCC_OscInitStruct.PLL.PLLQ = RCC_PLLQ_DIV2;
+  RCC_OscInitStruct.PLL.PLLR = RCC_PLLR_DIV2;
+  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_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
+  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+}
+
+/**
+  * @brief I2C2 Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_I2C2_Init(void)
+{
+
+  /* USER CODE BEGIN I2C2_Init 0 */
+
+  /* USER CODE END I2C2_Init 0 */
+
+  /* USER CODE BEGIN I2C2_Init 1 */
+
+  /* USER CODE END I2C2_Init 1 */
+  hi2c2.Instance = I2C2;
+  hi2c2.Init.Timing = 0x10707DBC;
+  hi2c2.Init.OwnAddress1 = 0;
+  hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+  hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+  hi2c2.Init.OwnAddress2 = 0;
+  hi2c2.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
+  hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+  hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+  if (HAL_I2C_Init(&hi2c2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Configure Analogue filter
+  */
+  if (HAL_I2CEx_ConfigAnalogFilter(&hi2c2, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /** Configure Digital filter
+  */
+  if (HAL_I2CEx_ConfigDigitalFilter(&hi2c2, 0) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN I2C2_Init 2 */
+
+  /* USER CODE END I2C2_Init 2 */
+
+}
+
+/**
+  * @brief GPIO Initialization Function
+  * @param None
+  * @retval None
+  */
+static void MX_GPIO_Init(void)
+{
+
+  /* GPIO Ports Clock Enable */
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+
+}
+
+/* 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 */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
+