From 091a130d655e75bb4d5f24a15883206869e43aa7 Mon Sep 17 00:00:00 2001
From: ozpv <39195175+ozpv@users.noreply.github.com>
Date: Sat, 15 Aug 2026 17:18:25 -0500
Subject: Add files via git push

---
 Core/Src/i2c.c | 131 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 131 insertions(+)
 create mode 100755 Core/Src/i2c.c

(limited to 'Core/Src/i2c.c')

diff --git a/Core/Src/i2c.c b/Core/Src/i2c.c
new file mode 100755
index 0000000..6ebfe13
--- /dev/null
+++ b/Core/Src/i2c.c
@@ -0,0 +1,131 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    i2c.c
+  * @brief   This file provides code for the configuration
+  *          of the I2C instances.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2026 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 "i2c.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+I2C_HandleTypeDef hi2c4;
+
+/* I2C4 init function */
+void MX_I2C4_Init(void)
+{
+
+  /* USER CODE BEGIN I2C4_Init 0 */
+
+  /* USER CODE END I2C4_Init 0 */
+
+  /* USER CODE BEGIN I2C4_Init 1 */
+
+  /* USER CODE END I2C4_Init 1 */
+  hi2c4.Instance = I2C4;
+  hi2c4.Init.Timing = 0x00201E2D;
+  hi2c4.Init.OwnAddress1 = 0;
+  hi2c4.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
+  hi2c4.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
+  hi2c4.Init.OwnAddress2 = 0;
+  hi2c4.Init.OwnAddress2Masks = I2C_OA2_NOMASK;
+  hi2c4.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
+  hi2c4.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
+  if (HAL_I2C_Init(&hi2c4) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  /** Configure Analogue filter
+  */
+  if (HAL_I2CEx_ConfigAnalogFilter(&hi2c4, I2C_ANALOGFILTER_ENABLE) != HAL_OK)
+  {
+    Error_Handler();
+  }
+
+  /** Configure Digital filter
+  */
+  if (HAL_I2CEx_ConfigDigitalFilter(&hi2c4, 0) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN I2C4_Init 2 */
+
+  /* USER CODE END I2C4_Init 2 */
+
+}
+
+void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  if(i2cHandle->Instance==I2C4)
+  {
+  /* USER CODE BEGIN I2C4_MspInit 0 */
+
+  /* USER CODE END I2C4_MspInit 0 */
+
+    __HAL_RCC_GPIOB_CLK_ENABLE();
+    /**I2C4 GPIO Configuration
+    PB8     ------> I2C4_SCL
+    PB9     ------> I2C4_SDA
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+    GPIO_InitStruct.Alternate = GPIO_AF6_I2C4;
+    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+    /* I2C4 clock enable */
+    __HAL_RCC_I2C4_CLK_ENABLE();
+  /* USER CODE BEGIN I2C4_MspInit 1 */
+
+  /* USER CODE END I2C4_MspInit 1 */
+  }
+}
+
+void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle)
+{
+
+  if(i2cHandle->Instance==I2C4)
+  {
+  /* USER CODE BEGIN I2C4_MspDeInit 0 */
+
+  /* USER CODE END I2C4_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_I2C4_CLK_DISABLE();
+
+    /**I2C4 GPIO Configuration
+    PB8     ------> I2C4_SCL
+    PB9     ------> I2C4_SDA
+    */
+    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_8);
+
+    HAL_GPIO_DeInit(GPIOB, GPIO_PIN_9);
+
+  /* USER CODE BEGIN I2C4_MspDeInit 1 */
+
+  /* USER CODE END I2C4_MspDeInit 1 */
+  }
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
-- 
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