добавлен модбас (не проверено)

Core/Inc/stm32f1xx_hal_conf.h

@@ -65,7 +65,7 @@
 /*#define HAL_SPI_MODULE_ENABLED   */
 /*#define HAL_SRAM_MODULE_ENABLED   */
 #define HAL_TIM_MODULE_ENABLED
-/*#define HAL_UART_MODULE_ENABLED   */
+#define HAL_UART_MODULE_ENABLED
 /*#define HAL_USART_MODULE_ENABLED   */
 /*#define HAL_WWDG_MODULE_ENABLED   */
 

Core/Inc/tim.h

@@ -34,11 +34,14 @@ extern "C" {
 
 extern TIM_HandleTypeDef htim2;
 
+extern TIM_HandleTypeDef htim3;
+
 /* USER CODE BEGIN Private defines */
 
 /* USER CODE END Private defines */
 
 void MX_TIM2_Init(void);
+void MX_TIM3_Init(void);
 
 /* USER CODE BEGIN Prototypes */
 

Core/Inc/usart.h

@@ -0,0 +1,52 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    usart.h
+  * @brief   This file contains all the function prototypes for
+  *          the usart.c file
+  ******************************************************************************
+  * @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 */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USART_H__
+#define __USART_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+extern UART_HandleTypeDef huart1;
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_USART1_UART_Init(void);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __USART_H__ */
+