加入eeprom驱动，用于保存屏幕触控的校准数据

Core/Src/main.c

@@ -40,6 +40,8 @@
 /* USER CODE END PM */
 
 /* Private variables ---------------------------------------------------------*/
+I2C_HandleTypeDef hi2c2;
+
 SRAM_HandleTypeDef hsram1;
 
 /* USER CODE BEGIN PV */
@@ -50,6 +52,7 @@ SRAM_HandleTypeDef hsram1;
 void SystemClock_Config(void);
 static void MX_GPIO_Init(void);
 static void MX_FSMC_Init(void);
+static void MX_I2C2_Init(void);
 /* USER CODE BEGIN PFP */
 
 /* USER CODE END PFP */
@@ -88,6 +91,7 @@ int main(void)
   /* Initialize all configured peripherals */
   MX_GPIO_Init();
   MX_FSMC_Init();
+  MX_I2C2_Init();
   /* USER CODE BEGIN 2 */
   main_app();
   /* USER CODE END 2 */
@@ -141,6 +145,40 @@ void SystemClock_Config(void)
   }
 }
 
+/**
+  * @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.ClockSpeed = 100000;
+  hi2c2.Init.DutyCycle = I2C_DUTYCYCLE_2;
+  hi2c2.Init.OwnAddress1 = 0;
+  hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+  hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+  hi2c2.Init.OwnAddress2 = 0;
+  hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+  hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+  if (HAL_I2C_Init(&hi2c2) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN I2C2_Init 2 */
+
+  /* USER CODE END I2C2_Init 2 */
+
+}
+
 /**
   * @brief GPIO Initialization Function
   * @param None