已经完成了网络，DI口，RS485的数据透传，可通过RS485接收数据

Core/Inc/data_source.h

@@ -0,0 +1,8 @@
+#ifndef __DATA_SOURCE_H
+#define __DATA_SOURCE_H
+
+/* 数据源标识 */
+#define SOURCE_RS485  0x01
+#define SOURCE_DI     0x02
+
+#endif /* __DATA_SOURCE_H */

Core/Inc/main.h

@@ -37,6 +37,7 @@ extern "C" {
 
 /* Exported types ------------------------------------------------------------*/
 /* USER CODE BEGIN ET */
+
 /* USER CODE END ET */
 
 /* Exported constants --------------------------------------------------------*/
@@ -47,6 +48,15 @@ extern "C" {
 /* Exported macro ------------------------------------------------------------*/
 /* USER CODE BEGIN EM */
 
+/* 硬件模块启用/禁用宏定义 */
+#ifndef USE_W5500
+#define USE_W5500 1 /* 默认启用W5500以太网模块 */
+#endif
+
+#ifndef USE_RS485
+#define USE_RS485 1  /* 默认启用RS485通信模块 */
+#endif
+
 /* USER CODE END EM */
 
 /* Exported functions prototypes ---------------------------------------------*/

Core/Inc/stm32f1xx_hal_conf.h

@@ -64,7 +64,7 @@
 /*#define HAL_SMARTCARD_MODULE_ENABLED   */
 #define HAL_SPI_MODULE_ENABLED
 /*#define HAL_SRAM_MODULE_ENABLED   */
-/*#define HAL_TIM_MODULE_ENABLED   */
+#define HAL_TIM_MODULE_ENABLED
 #define HAL_UART_MODULE_ENABLED
 /*#define HAL_USART_MODULE_ENABLED   */
 /*#define HAL_WWDG_MODULE_ENABLED   */

Core/Inc/stm32f1xx_it.h

@@ -55,6 +55,7 @@ void SVC_Handler(void);
 void DebugMon_Handler(void);
 void PendSV_Handler(void);
 void SysTick_Handler(void);
+void TIM2_IRQHandler(void);
 void USART1_IRQHandler(void);
 void USART2_IRQHandler(void);
 void USART3_IRQHandler(void);

Core/Inc/tim.h

@@ -0,0 +1,54 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file           : tim.h
+  * @brief          : Header for tim.c file.
+  *                   This file contains the common defines of the application.
+  ******************************************************************************
+  * @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 */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __TIM_H__
+#define __TIM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+extern TIM_HandleTypeDef htim2;
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_TIM2_Init(void);
+
+/* USER CODE BEGIN Prototypes */
+
+void MX_TIM2_Init(void);
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __TIM_H__ */
+

Core/Inc/uart2_print.h

@@ -23,7 +23,7 @@ extern "C" {
 #include <stdarg.h>
 #include <stdbool.h>
 
-#define UART2_TX_BUFFER_SIZE    256
+#define UART2_TX_BUFFER_SIZE    512
 
 /**
  * @brief  初始化UART2打印模块

Core/Inc/uart3_smart_router_config.h

@@ -86,7 +86,7 @@
   *         可通过此开关快速切换新旧逻辑
   */
 #ifndef UART3_SMART_ROUTING_ENABLED
-#define UART3_SMART_ROUTING_ENABLED   1
+#define UART3_SMART_ROUTING_ENABLED   0
 #endif
 
 /**