fix: 更新.gitignore以排除Keil构建日志和Wireshark日志文件

refactor: 适配STM32F103RCT6 + FreeRTOS工程框架，同步baremetal-r8协议手册
- IOC: MCU切换为STM32F103RCTx，添加FREERTOS+TIM4中间件，HAL时间基准改为TIM4 - Keil uvprojx: 目标器件RC，Flash 256KB/48KB SRAM，宏xE，HD Flash算法，启动文件xe.s - EWARM ewp: 宏xE，ICF/启动文件切换为xe版本 - 启动文件: Stack_Size 0x400→0x800适配FreeRTOS - 重写项目需求说明/技术实现文档，描述FreeRTOS 5任务架构+lwIP NO_SYS=0 - 新增AT固件使用手册(MUX/NET/LINK协议)和工程调试指南(FreeRTOS专项)
2026-04-13 15:50:16 +08:00 · 2026-04-09 20:22:48 +08:00 · 2026-03-30 14:41:13 +08:00 · 2026-03-30 13:14:37 +08:00
24 changed files with 2144 additions and 1054 deletions
@@ -26,6 +26,7 @@ Release/
 *.uvguix.*
 MDK-ARM/DebugConfig/
 MDK-ARM/TCP2UART/
+build_keil.log

 # OS
 Thumbs.db
@@ -34,3 +35,6 @@ Desktop.ini

 # 项目文档
 项目计划.md
+
+# Wireshark
+WiresharkLog/
@@ -4,25 +4,25 @@ LibFiles=Drivers\STM32F1xx_HAL_Driver\Inc\Legacy\stm32_hal_legacy.h;Drivers\STM3
 [PreviousUsedIarFiles]
 SourceFiles=..\Core\Src\main.c;..\Core\Src\gpio.c;..\Core\Src\dma.c;..\Core\Src\iwdg.c;..\Core\Src\spi.c;..\Core\Src\usart.c;..\Core\Src\wwdg.c;..\Core\Src\stm32f1xx_it.c;..\Core\Src\stm32f1xx_hal_msp.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_iwdg.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_wwdg.c;..\Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;..\Core\Src\system_stm32f1xx.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_iwdg.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_wwdg.c;..\Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;..\Core\Src\system_stm32f1xx.c;;;
 HeaderPath=..\Drivers\STM32F1xx_HAL_Driver\Inc;..\Drivers\STM32F1xx_HAL_Driver\Inc\Legacy;..\Drivers\CMSIS\Device\ST\STM32F1xx\Include;..\Drivers\CMSIS\Include;..\Core\Inc;
-CDefines=USE_HAL_DRIVER;STM32F103xE;USE_HAL_DRIVER;USE_HAL_DRIVER;
+CDefines=USE_HAL_DRIVER;STM32F103xB;USE_HAL_DRIVER;USE_HAL_DRIVER;

 [PreviousUsedKeilFiles]
 SourceFiles=..\Core\Src\main.c;..\Core\Src\gpio.c;..\Core\Src\freertos.c;..\Core\Src\dma.c;..\Core\Src\iwdg.c;..\Core\Src\spi.c;..\Core\Src\usart.c;..\Core\Src\stm32f1xx_it.c;..\Core\Src\stm32f1xx_hal_msp.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_iwdg.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;..\Middlewares\Third_Party\FreeRTOS\Source\croutine.c;..\Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;..\Middlewares\Third_Party\FreeRTOS\Source\list.c;..\Middlewares\Third_Party\FreeRTOS\Source\queue.c;..\Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;..\Middlewares\Third_Party\FreeRTOS\Source\tasks.c;..\Middlewares\Third_Party\FreeRTOS\Source\timers.c;..\Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;..\Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;..\Middlewares\Third_Party\FreeRTOS\Source\portable\RVDS\ARM_CM3\port.c;..\Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;..\Core\Src\system_stm32f1xx.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_rcc_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_gpio.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_dma.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_cortex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_pwr.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_flash_ex.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_exti.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_iwdg.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_spi.c;..\Drivers\STM32F1xx_HAL_Driver\Src\stm32f1xx_hal_uart.c;..\Middlewares\Third_Party\FreeRTOS\Source\croutine.c;..\Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;..\Middlewares\Third_Party\FreeRTOS\Source\list.c;..\Middlewares\Third_Party\FreeRTOS\Source\queue.c;..\Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;..\Middlewares\Third_Party\FreeRTOS\Source\tasks.c;..\Middlewares\Third_Party\FreeRTOS\Source\timers.c;..\Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;..\Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;..\Middlewares\Third_Party\FreeRTOS\Source\portable\RVDS\ARM_CM3\port.c;..\Drivers\CMSIS\Device\ST\STM32F1xx\Source\Templates\system_stm32f1xx.c;..\Core\Src\system_stm32f1xx.c;;;..\Middlewares\Third_Party\FreeRTOS\Source\croutine.c;..\Middlewares\Third_Party\FreeRTOS\Source\event_groups.c;..\Middlewares\Third_Party\FreeRTOS\Source\list.c;..\Middlewares\Third_Party\FreeRTOS\Source\queue.c;..\Middlewares\Third_Party\FreeRTOS\Source\stream_buffer.c;..\Middlewares\Third_Party\FreeRTOS\Source\tasks.c;..\Middlewares\Third_Party\FreeRTOS\Source\timers.c;..\Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2\cmsis_os2.c;..\Middlewares\Third_Party\FreeRTOS\Source\portable\MemMang\heap_4.c;..\Middlewares\Third_Party\FreeRTOS\Source\portable\RVDS\ARM_CM3\port.c;
-HeaderPath=..\Drivers\STM32F1xx_HAL_Driver\Inc\Legacy;..\Drivers\STM32F1xx_HAL_Driver\Inc;..\Middlewares\Third_Party\FreeRTOS\Source\include;..\Middlewares\Third_Party\FreeRTOS\Source\CMSIS_RTOS_V2;..\Middlewares\Third_Party\FreeRTOS\Source\portable\RVDS\ARM_CM3;..\Drivers\CMSIS\Device\ST\STM32F1xx\Include;..\Drivers\CMSIS\Include;..\Core\Inc;
+HeaderPath=..\Drivers\STM32F1xx_HAL_Driver\Inc\Legacy;..\Drivers\STM32F1xx_HAL_Driver\Inc;..\Drivers\CMSIS\Device\ST\STM32F1xx\Include;..\Drivers\CMSIS\Include;..\Core\Inc;
 CDefines=USE_HAL_DRIVER;STM32F103xB;USE_HAL_DRIVER;USE_HAL_DRIVER;

 [PreviousGenFiles]
 AdvancedFolderStructure=true
 HeaderFileListSize=9
 HeaderFiles#0=..\Core\Inc\gpio.h
-HeaderFiles#1=..\Core\Inc\FreeRTOSConfig.h
-HeaderFiles#2=..\Core\Inc\dma.h
-HeaderFiles#3=..\Core\Inc\iwdg.h
-HeaderFiles#4=..\Core\Inc\spi.h
-HeaderFiles#5=..\Core\Inc\usart.h
-HeaderFiles#6=..\Core\Inc\stm32f1xx_it.h
-HeaderFiles#7=..\Core\Inc\stm32f1xx_hal_conf.h
-HeaderFiles#8=..\Core\Inc\main.h
+HeaderFiles#1=..\Core\Inc\dma.h
+HeaderFiles#2=..\Core\Inc\iwdg.h
+HeaderFiles#3=..\Core\Inc\spi.h
+HeaderFiles#4=..\Core\Inc\usart.h
+HeaderFiles#5=..\Core\Inc\stm32f1xx_it.h
+HeaderFiles#6=..\Core\Inc\stm32f1xx_hal_conf.h
+HeaderFiles#7=..\Core\Inc\main.h
+HeaderFiles#8=
 HeaderFolderListSize=1
 HeaderPath#0=..\Core\Inc
 HeaderFiles=;
@@ -0,0 +1,390 @@
+# TCP2UART AT 固件使用手册
+
+## 1. 文档范围
+
+本文档定义 `TCP2UART` 项目的最终 AT 外部协议。
+
+本文档只描述最终协议模型，不保留任何历史展开式实例字段，不包含测试记录，不讨论旧版兼容命令。
+
+适用对象：
+
+- 上位机开发人员
+- 联调与测试人员
+- 固件接口实现人员
+
+## 2. 设备与接口
+
+- 主控：`STM32F103RCT6`（256KB Flash / 48KB SRAM）
+- 以太网芯片：`CH390D`
+- 配置口：`USART1`
+- 数据口：`USART2`、`USART3`
+
+职责划分：
+
+- `USART1`：AT 配置口
+- `USART2 / USART3`：业务数据口，可工作于普通透传或 MUX 透传模式
+
+## 3. 最终协议模型
+
+本项目最终控制协议由三部分组成：
+
+1. `MUX`：全局数据承载模式开关
+2. `NET`：全局静态网络配置记录
+3. `LINK[ROLE]`：按角色名组织的链路配置记录（`S1/S2/C1/C2`）
+
+约束如下：
+
+- 设备只有一张网卡，因此本地网络参数只配置一次
+- DHCP 不属于最终协议范围
+- 所有 AT 文本命令必须以 `\r\n` 结尾
+- 当 `DSTMASK=0x00` 时，MUX 数据口中的系统控制帧进入 AT 解析路径，其控制文本同样必须以 `\r\n` 结尾
+
+## 4. MUX 帧格式
+
+当 `MUX=1` 时，数据口使用如下帧格式：
+
+```text
+SYNC | LEN_H | LEN_L | SRCID | DSTMASK | PAYLOAD | TAIL
+```
+
+字段定义：
+
+- `SYNC`：帧起始标记，建议固定为 `0x7E`
+- `LEN_H / LEN_L`：`PAYLOAD` 长度，高字节在前
+- `SRCID`：单字节源端点 ID
+- `DSTMASK`：单字节目标端点位图
+- `PAYLOAD`：负载数据
+- `TAIL`：帧结束标记，建议固定为 `0x7F`
+
+规则：
+
+- `DSTMASK != 0x00`：业务数据帧
+- `DSTMASK = 0x00`：系统控制帧
+- 系统控制帧的 `PAYLOAD` 为 AT 文本，必须以 `\r\n` 结束
+
+## 5. 统一端点编码
+
+`UART` 与 `TCP` 逻辑实例统一进入同一套编码空间：
+
+| 端点 | 编码 |
+|------|------|
+| `C1` | `0x01` |
+| `C2` | `0x02` |
+| `U0` | `0x04` |
+| `U1` | `0x08` |
+| `S1` | `0x10` |
+| `S2` | `0x20` |
+
+说明：
+
+- `SRCID` 必须为单一端点值
+- `DSTMASK` 可以是一个或多个端点编码按位或的结果
+- `DSTMASK=0x00` 保留给系统控制帧
+
+## 6. AT 命令总则
+
+### 6.1 命令结尾
+
+所有 AT 命令均必须以 `\r\n` 结尾。
+
+例如：
+
+```text
+AT\r\n
+AT+MUX?\r\n
+AT+NET=192.168.1.100,255.255.255.0,192.168.1.1,02:00:00:00:00:01\r\n
+```
+
+### 6.2 持久化规则
+
+参数设置成功后只写入当前运行配置，不会自动写入 Flash。
+
+若要掉电保持，必须执行：
+
+1. `AT+SAVE\r\n`
+2. `AT+RESET\r\n`
+
+### 6.3 响应风格
+
+- 成功：`OK`
+- 需要保存后生效时，允许追加提示文本
+- 失败：`ERROR: <reason>`
+
+## 7. 默认配置
+
+### 7.1 MUX 默认值
+
+```text
+MUX = 0
+```
+
+### 7.2 NET 默认值
+
+```text
+NET = 192.168.1.100,255.255.255.0,192.168.1.1,02:00:00:00:00:01
+```
+
+### 7.3 LINK 默认值
+
+```text
+LINK:S1 = 1,8080,0.0.0.0,0,U0
+LINK:S2 = 0,8081,0.0.0.0,0,U1
+LINK:C1 = 1,9001,192.168.1.200,9000,U1
+LINK:C2 = 0,9002,192.168.1.201,9001,U0
+```
+
+说明：
+
+- `S1/S2/C1/C2` 为对外可见角色名
+- 内部索引映射由固件管理，不对外暴露
+
+UART 记号约定：
+
+- `U0 = USART2`
+- `U1 = USART3`
+
+## 8. AT 命令定义
+
+### 8.1 测试设备在线
+
+命令：
+
+```text
+AT\r\n
+```
+
+返回：
+
+```text
+OK
+```
+
+### 8.2 查询摘要
+
+命令：
+
+```text
+AT+?\r\n
+AT+QUERY\r\n
+```
+
+推荐返回格式：
+
+```text
+NET:IP=192.168.1.100,MASK=255.255.255.0,GW=192.168.1.1,MAC=02:00:00:00:00:01
+LINK:S1,EN=1,LPORT=8080,RIP=0.0.0.0,RPORT=0,UART=U0
+LINK:S2,EN=0,LPORT=8081,RIP=0.0.0.0,RPORT=0,UART=U1
+LINK:C1,EN=1,LPORT=9001,RIP=192.168.1.200,RPORT=9000,UART=U1
+LINK:C2,EN=0,LPORT=9002,RIP=192.168.1.201,RPORT=9001,UART=U0
+MUX:0
+MAP:UART2=0x04,UART3=0x08,C1=0x01,C2=0x02,S1=0x10,S2=0x20
+BAUD:U0=115200,U1=115200
+OK
+```
+
+### 8.3 MUX 类命令
+
+#### 设置 MUX
+
+```text
+AT+MUX=1\r\n
+```
+
+参数：
+
+- `0`：普通透传模式
+- `1`：MUX 透传模式
+
+查询：
+
+```text
+AT+MUX?\r\n
+```
+
+返回示例：
+
+```text
+MUX:1
+OK
+```
+
+### 8.4 NET 类命令
+
+#### 设置 NET
+
+```text
+AT+NET=192.168.1.100,255.255.255.0,192.168.1.1,02:00:00:00:00:01\r\n
+```
+
+字段顺序：
+
+```text
+IP,MASK,GW,MAC
+```
+
+查询：
+
+```text
+AT+NET?\r\n
+```
+
+返回示例：
+
+```text
+NET:IP=192.168.1.100,MASK=255.255.255.0,GW=192.168.1.1,MAC=02:00:00:00:00:01
+OK
+```
+
+**MAC 设置说明：**
+
+当MAC设置为全0时，固件将使用硬件MAC地址，此时通过AT+?查询到的MAC地址即为当前生效的硬件MAC地址。
+
+### 8.5 LINK 类命令
+
+#### 设置单条 LINK 记录
+
+```text
+AT+LINK=S1,1,8080,0.0.0.0,0,U0\r\n
+AT+LINK=C1,1,9001,192.168.1.200,9000,U1\r\n
+```
+
+字段顺序：
+
+```text
+ROLE,EN,LPORT,RIP,RPORT,UART
+```
+
+字段说明：
+
+- `ROLE`：链路角色名，固定为 `S1/S2/C1/C2`
+- `EN`：`0/1`
+- `LPORT`：本地端口
+- `RIP`：对端 IP
+- `RPORT`：对端端口
+- `UART`：`U0/U1`
+
+说明：
+
+- `Server` 与 `Client` 共用同一条 `LINK` 记录模型
+- `Server` 中 `RIP/RPORT` 可作为允许接入的对端约束或预设对端信息
+- `Client` 中 `RIP/RPORT` 表示远端目标地址与端口
+
+#### 查询单条 LINK
+
+```text
+AT+LINK=S1\r\n
+```
+
+返回示例：
+
+```text
+LINK:S1,EN=1,LPORT=8080,RIP=0.0.0.0,RPORT=0,UART=U0
+OK
+```
+
+#### 查询全部 LINK
+
+```text
+AT+LINK?\r\n
+```
+
+返回示例：
+
+```text
+LINK:S1,EN=1,LPORT=8080,RIP=0.0.0.0,RPORT=0,UART=U0
+LINK:S2,EN=0,LPORT=8081,RIP=0.0.0.0,RPORT=0,UART=U1
+LINK:C1,EN=1,LPORT=9001,RIP=192.168.1.200,RPORT=9000,UART=U1
+LINK:C2,EN=0,LPORT=9002,RIP=192.168.1.201,RPORT=9001,UART=U0
+OK
+```
+
+## 9. 保存与复位命令
+
+### 9.1 保存配置
+
+```text
+AT+SAVE\r\n
+```
+
+成功返回：
+
+```text
+OK: Configuration saved
+```
+
+### 9.2 软件复位
+
+```text
+AT+RESET\r\n
+```
+
+返回：
+
+```text
+OK: Resetting...
+```
+
+### 9.3 恢复默认值
+
+```text
+AT+DEFAULT\r\n
+```
+
+返回：
+
+```text
+OK: Defaults restored
+```
+
+## 10. 常见错误返回
+
+| 场景 | 返回 |
+|------|------|
+| 未知命令 | `ERROR: Unknown command` |
+| 非法端口 | `ERROR: Invalid port` |
+| 非法波特率 | `ERROR: Invalid baudrate` |
+| 非法 IP 地址 | `ERROR: Invalid IP format` |
+| 非法掩码 | `ERROR: Invalid mask format` |
+| 非法网关 | `ERROR: Invalid gateway format` |
+| 非法远端 IP | `ERROR: Invalid remote IP format` |
+| 非法 MAC | `ERROR: Invalid MAC format` |
+| 非法 `SRCID` / `DSTMASK` | `ERROR: Invalid route field` |
+| Flash 保存失败 | `ERROR: Save failed` |
+
+## 11. 推荐配置流程
+
+```text
+AT+NET=192.168.1.123,255.255.255.0,192.168.1.1,02:00:00:00:00:01\r\n
+AT+LINK=S1,1,10001,0.0.0.0,0,U1\r\n
+AT+LINK=S2,1,10003,0.0.0.0,0,U1\r\n
+AT+LINK=C1,1,20001,192.168.1.201,10002,U0\r\n
+AT+MUX=1\r\n
+AT+SAVE\r\n
+AT+RESET\r\n
+```
+
+## 12. 故障排查建议
+
+### 12.1 发送 `AT` 没有返回
+
+优先检查：
+
+1. 是否连接到 `USART1`
+2. 串口参数是否为 `115200 8N1`
+3. 是否严格使用 `\r\n` 作为命令结尾
+4. 接线是否正确
+5. 设备是否正常上电运行
+
+### 12.2 设置成功但重启后参数丢失
+
+检查是否漏掉以下步骤：
+
+1. `AT+SAVE\r\n`
+2. `AT+RESET\r\n`
+
+## 13. 相关文件
+
+- AT 命令实现：`App/config.c`
+- 配置结构与默认值：`App/config.h`
+- FreeRTOS 任务定义：`Core/Src/freertos.c`
+- 调试指导：`工程调试指南.md`
@@ -19,8 +19,8 @@
 * Private Definitions
 *---------------------------------------------------------------------------*/

-#define CONFIG_RX_BUFFER_SIZE   256
-#define CONFIG_TX_BUFFER_SIZE   512
+#define CONFIG_RX_BUFFER_SIZE   128
+#define CONFIG_TX_BUFFER_SIZE   256
 #define CONFIG_CMD_MAX_LEN      128

 /* AT command prefixes */
@@ -22,8 +22,8 @@ extern "C" {
 #define TCP_CLIENT_MAX_RECONNECT_TRIES  0   /* 0 = infinite */

 /* Buffer sizes */
-#define TCP_CLIENT_RX_BUFFER_SIZE   1024
-#define TCP_CLIENT_TX_BUFFER_SIZE   1024
+#define TCP_CLIENT_RX_BUFFER_SIZE   512
+#define TCP_CLIENT_TX_BUFFER_SIZE   512

 /* TCP Client state */
 typedef enum {
@@ -20,8 +20,8 @@ extern "C" {
 #define TCP_SERVER_MAX_CONNECTIONS  1

 /* Buffer sizes */
-#define TCP_SERVER_RX_BUFFER_SIZE   1024
-#define TCP_SERVER_TX_BUFFER_SIZE   1024
+#define TCP_SERVER_RX_BUFFER_SIZE   512
+#define TCP_SERVER_TX_BUFFER_SIZE   512

 /* TCP Server state */
 typedef enum {
@@ -25,8 +25,8 @@ typedef enum {
 } uart_channel_t;

 /* DMA buffer sizes */
-#define UART_RX_DMA_BUFFER_SIZE     256
-#define UART_TX_DMA_BUFFER_SIZE     256
+#define UART_RX_DMA_BUFFER_SIZE     128
+#define UART_TX_DMA_BUFFER_SIZE     128

 /* UART configuration */
 typedef struct {
@@ -65,7 +65,7 @@
 #define configTICK_RATE_HZ                       ((TickType_t)1000)
 #define configMAX_PRIORITIES                     ( 56 )
 #define configMINIMAL_STACK_SIZE                 ((uint16_t)128)
-#define configTOTAL_HEAP_SIZE                    ((size_t)16384)  /* 16KB for LwIP + application */
+#define configTOTAL_HEAP_SIZE                    ((size_t)8192)   /* Fit R8 RAM budget with dynamic tasks */
 #define configMAX_TASK_NAME_LEN                  ( 16 )
 #define configUSE_TRACE_FACILITY                 1
 #define configUSE_16_BIT_TICKS                   0
@@ -75,6 +75,7 @@
 #define configUSE_COUNTING_SEMAPHORES            1
 #define configUSE_PORT_OPTIMISED_TASK_SELECTION  0
 #define configUSE_STREAM_BUFFERS                 1  /* Enable StreamBuffer for UART data transfer */
+#define configNUM_THREAD_LOCAL_STORAGE_POINTERS  1

 /* Co-routine definitions. */
 #define configUSE_CO_ROUTINES                    0
@@ -50,11 +50,11 @@
 /* Private define ------------------------------------------------------------*/
 /* USER CODE BEGIN PD */
 /* Task stack sizes (words, not bytes) */
-#define LWIP_TASK_STACK_SIZE        512
-#define TCP_SERVER_TASK_STACK_SIZE  384
-#define TCP_CLIENT_TASK_STACK_SIZE  384
-#define UART_TRANS_TASK_STACK_SIZE  256
-#define CONFIG_TASK_STACK_SIZE      384
+#define LWIP_TASK_STACK_SIZE        384
+#define TCP_SERVER_TASK_STACK_SIZE  320
+#define TCP_CLIENT_TASK_STACK_SIZE  320
+#define UART_TRANS_TASK_STACK_SIZE  192
+#define CONFIG_TASK_STACK_SIZE      256
 #define DEFAULT_TASK_STACK_SIZE     128

 /* Task priorities */
@@ -4,6 +4,7 @@
 */

 #include "lwip/opt.h"
+#include "lwip/mem.h"
 #include "lwip/sys.h"
 #include "lwip/stats.h"
 #include "arch/sys_arch.h"
@@ -15,6 +16,8 @@

 #include <string.h>

+int errno;
+
 /* Timeout for infinite wait */
 #define LWIP_ARCH_TICK_PER_MS   (1000 / configTICK_RATE_HZ)

@@ -9,6 +9,7 @@
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include "lwip/errno.h"

 /* Use standard integer types from stdint.h */
 #define LWIP_NO_STDINT_H  0
@@ -31,6 +31,9 @@
 #define MEM_LIBC_MALLOC                 0
 #define MEMP_MEM_MALLOC                 0

+/* Let lwIP provide the errno values used by sockets/netconn. */
+#define LWIP_PROVIDE_ERRNO              1
+
 /*-----------------------------------------------------------------------------
 * Memory Configuration (optimized for STM32F103 with ~20KB RAM)
 *---------------------------------------------------------------------------*/
@@ -63,7 +66,7 @@
 #define MEMP_NUM_TCP_PCB_LISTEN         2

 /* Number of simultaneously queued TCP segments */
-#define MEMP_NUM_TCP_SEG                12
+#define MEMP_NUM_TCP_SEG                17

 /* Number of simultaneously active timeouts */
 #define MEMP_NUM_SYS_TIMEOUT            8
@@ -37,6 +37,36 @@ typedef u32_t sys_prot_t;
 #define SYS_MBOX_NULL   ((sys_mbox_t)NULL)
 #define SYS_MUTEX_NULL  ((sys_mutex_t)NULL)

+/* Use one per-thread semaphore for lwIP netconn/socket API calls. */
+#define LWIP_NETCONN_THREAD_SEM_TLS_INDEX  0
+#define LWIP_NETCONN_THREAD_SEM_GET() \
+    ((sys_sem_t *)pvTaskGetThreadLocalStoragePointer(NULL, LWIP_NETCONN_THREAD_SEM_TLS_INDEX))
+#define LWIP_NETCONN_THREAD_SEM_ALLOC()                                             \
+    do {                                                                            \
+        sys_sem_t *sem = (sys_sem_t *)mem_malloc(sizeof(sys_sem_t));                \
+        if (sem != NULL) {                                                          \
+            *sem = SYS_SEM_NULL;                                                    \
+            if (sys_sem_new(sem, 0) == ERR_OK) {                                    \
+                vTaskSetThreadLocalStoragePointer(NULL,                             \
+                                                  LWIP_NETCONN_THREAD_SEM_TLS_INDEX,\
+                                                  sem);                             \
+            } else {                                                                \
+                mem_free(sem);                                                      \
+            }                                                                       \
+        }                                                                           \
+    } while (0)
+#define LWIP_NETCONN_THREAD_SEM_FREE()                                              \
+    do {                                                                            \
+        sys_sem_t *sem = LWIP_NETCONN_THREAD_SEM_GET();                             \
+        if (sem != NULL) {                                                          \
+            sys_sem_free(sem);                                                      \
+            mem_free(sem);                                                          \
+            vTaskSetThreadLocalStoragePointer(NULL,                                 \
+                                              LWIP_NETCONN_THREAD_SEM_TLS_INDEX,    \
+                                              NULL);                                \
+        }                                                                           \
+    } while (0)
+
 /* Check if semaphore/mbox is valid */
 #define sys_sem_valid(sem)      ((sem) != NULL && (*(sem)) != SYS_SEM_NULL)
 #define sys_sem_set_invalid(sem) do { if ((sem) != NULL) { *(sem) = SYS_SEM_NULL; } } while(0)
@@ -0,0 +1,190 @@
+;******************** (C) COPYRIGHT 2017 STMicroelectronics ********************
+;* File Name          : startup_stm32f103xb.s
+;* Description        : STM32F103xB Devices vector table for EWARM toolchain.
+
+        MODULE  ?cstartup
+
+        EXTERN  __iar_program_start
+        EXTERN  SystemInit
+        PUBLIC  __vector_table
+
+        SECTION .intvec:CODE:NOROOT(2)
+
+__vector_table
+        DCD     sfe(CSTACK)
+        DCD     Reset_Handler
+        DCD     NMI_Handler
+        DCD     HardFault_Handler
+        DCD     MemManage_Handler
+        DCD     BusFault_Handler
+        DCD     UsageFault_Handler
+        DCD     0
+        DCD     0
+        DCD     0
+        DCD     0
+        DCD     SVC_Handler
+        DCD     DebugMon_Handler
+        DCD     0
+        DCD     PendSV_Handler
+        DCD     SysTick_Handler
+
+        DCD     WWDG_IRQHandler
+        DCD     PVD_IRQHandler
+        DCD     TAMPER_IRQHandler
+        DCD     RTC_IRQHandler
+        DCD     FLASH_IRQHandler
+        DCD     RCC_IRQHandler
+        DCD     EXTI0_IRQHandler
+        DCD     EXTI1_IRQHandler
+        DCD     EXTI2_IRQHandler
+        DCD     EXTI3_IRQHandler
+        DCD     EXTI4_IRQHandler
+        DCD     DMA1_Channel1_IRQHandler
+        DCD     DMA1_Channel2_IRQHandler
+        DCD     DMA1_Channel3_IRQHandler
+        DCD     DMA1_Channel4_IRQHandler
+        DCD     DMA1_Channel5_IRQHandler
+        DCD     DMA1_Channel6_IRQHandler
+        DCD     DMA1_Channel7_IRQHandler
+        DCD     ADC1_2_IRQHandler
+        DCD     USB_HP_CAN1_TX_IRQHandler
+        DCD     USB_LP_CAN1_RX0_IRQHandler
+        DCD     CAN1_RX1_IRQHandler
+        DCD     CAN1_SCE_IRQHandler
+        DCD     EXTI9_5_IRQHandler
+        DCD     TIM1_BRK_IRQHandler
+        DCD     TIM1_UP_IRQHandler
+        DCD     TIM1_TRG_COM_IRQHandler
+        DCD     TIM1_CC_IRQHandler
+        DCD     TIM2_IRQHandler
+        DCD     TIM3_IRQHandler
+        DCD     TIM4_IRQHandler
+        DCD     I2C1_EV_IRQHandler
+        DCD     I2C1_ER_IRQHandler
+        DCD     I2C2_EV_IRQHandler
+        DCD     I2C2_ER_IRQHandler
+        DCD     SPI1_IRQHandler
+        DCD     SPI2_IRQHandler
+        DCD     USART1_IRQHandler
+        DCD     USART2_IRQHandler
+        DCD     USART3_IRQHandler
+        DCD     EXTI15_10_IRQHandler
+        DCD     RTC_Alarm_IRQHandler
+        DCD     USBWakeUp_IRQHandler
+
+        THUMB
+
+Reset_Handler
+        LDR     R0, =SystemInit
+        BLX     R0
+        LDR     R0, =__iar_program_start
+        BX      R0
+
+        PUBWEAK NMI_Handler
+        PUBWEAK HardFault_Handler
+        PUBWEAK MemManage_Handler
+        PUBWEAK BusFault_Handler
+        PUBWEAK UsageFault_Handler
+        PUBWEAK SVC_Handler
+        PUBWEAK DebugMon_Handler
+        PUBWEAK PendSV_Handler
+        PUBWEAK SysTick_Handler
+        PUBWEAK WWDG_IRQHandler
+        PUBWEAK PVD_IRQHandler
+        PUBWEAK TAMPER_IRQHandler
+        PUBWEAK RTC_IRQHandler
+        PUBWEAK FLASH_IRQHandler
+        PUBWEAK RCC_IRQHandler
+        PUBWEAK EXTI0_IRQHandler
+        PUBWEAK EXTI1_IRQHandler
+        PUBWEAK EXTI2_IRQHandler
+        PUBWEAK EXTI3_IRQHandler
+        PUBWEAK EXTI4_IRQHandler
+        PUBWEAK DMA1_Channel1_IRQHandler
+        PUBWEAK DMA1_Channel2_IRQHandler
+        PUBWEAK DMA1_Channel3_IRQHandler
+        PUBWEAK DMA1_Channel4_IRQHandler
+        PUBWEAK DMA1_Channel5_IRQHandler
+        PUBWEAK DMA1_Channel6_IRQHandler
+        PUBWEAK DMA1_Channel7_IRQHandler
+        PUBWEAK ADC1_2_IRQHandler
+        PUBWEAK USB_HP_CAN1_TX_IRQHandler
+        PUBWEAK USB_LP_CAN1_RX0_IRQHandler
+        PUBWEAK CAN1_RX1_IRQHandler
+        PUBWEAK CAN1_SCE_IRQHandler
+        PUBWEAK EXTI9_5_IRQHandler
+        PUBWEAK TIM1_BRK_IRQHandler
+        PUBWEAK TIM1_UP_IRQHandler
+        PUBWEAK TIM1_TRG_COM_IRQHandler
+        PUBWEAK TIM1_CC_IRQHandler
+        PUBWEAK TIM2_IRQHandler
+        PUBWEAK TIM3_IRQHandler
+        PUBWEAK TIM4_IRQHandler
+        PUBWEAK I2C1_EV_IRQHandler
+        PUBWEAK I2C1_ER_IRQHandler
+        PUBWEAK I2C2_EV_IRQHandler
+        PUBWEAK I2C2_ER_IRQHandler
+        PUBWEAK SPI1_IRQHandler
+        PUBWEAK SPI2_IRQHandler
+        PUBWEAK USART1_IRQHandler
+        PUBWEAK USART2_IRQHandler
+        PUBWEAK USART3_IRQHandler
+        PUBWEAK EXTI15_10_IRQHandler
+        PUBWEAK RTC_Alarm_IRQHandler
+        PUBWEAK USBWakeUp_IRQHandler
+
+NMI_Handler
+HardFault_Handler
+MemManage_Handler
+BusFault_Handler
+UsageFault_Handler
+SVC_Handler
+DebugMon_Handler
+PendSV_Handler
+SysTick_Handler
+WWDG_IRQHandler
+PVD_IRQHandler
+TAMPER_IRQHandler
+RTC_IRQHandler
+FLASH_IRQHandler
+RCC_IRQHandler
+EXTI0_IRQHandler
+EXTI1_IRQHandler
+EXTI2_IRQHandler
+EXTI3_IRQHandler
+EXTI4_IRQHandler
+DMA1_Channel1_IRQHandler
+DMA1_Channel2_IRQHandler
+DMA1_Channel3_IRQHandler
+DMA1_Channel4_IRQHandler
+DMA1_Channel5_IRQHandler
+DMA1_Channel6_IRQHandler
+DMA1_Channel7_IRQHandler
+ADC1_2_IRQHandler
+USB_HP_CAN1_TX_IRQHandler
+USB_LP_CAN1_RX0_IRQHandler
+CAN1_RX1_IRQHandler
+CAN1_SCE_IRQHandler
+EXTI9_5_IRQHandler
+TIM1_BRK_IRQHandler
+TIM1_UP_IRQHandler
+TIM1_TRG_COM_IRQHandler
+TIM1_CC_IRQHandler
+TIM2_IRQHandler
+TIM3_IRQHandler
+TIM4_IRQHandler
+I2C1_EV_IRQHandler
+I2C1_ER_IRQHandler
+I2C2_EV_IRQHandler
+I2C2_ER_IRQHandler
+SPI1_IRQHandler
+SPI2_IRQHandler
+USART1_IRQHandler
+USART2_IRQHandler
+USART3_IRQHandler
+EXTI15_10_IRQHandler
+RTC_Alarm_IRQHandler
+USBWakeUp_IRQHandler
+        B .
+
+        END
@@ -0,0 +1,27 @@
+/*###ICF### Section handled by ICF editor, don't touch! ****/
+/*-Editor annotation file-*/
+/* IcfEditorFile="$TOOLKIT_DIR$/config/ide/IdeFlashRegions.icf" */
+/*-Specials-*/
+define symbol __ICFEDIT_intvec_start__ = 0x08000000;
+/*-Memory Regions-*/
+define symbol __ICFEDIT_region_ROM_start__ = 0x08000000;
+define symbol __ICFEDIT_region_ROM_end__   = 0x0800FFFF;
+define symbol __ICFEDIT_region_RAM_start__ = 0x20000000;
+define symbol __ICFEDIT_region_RAM_end__   = 0x20004FFF;
+/*-Sizes-*/
+define symbol __ICFEDIT_size_cstack__ = 0x400;
+define symbol __ICFEDIT_size_heap__   = 0x0;
+
+define memory mem with size = 4G;
+define region ROM_region = mem:[from __ICFEDIT_region_ROM_start__ to __ICFEDIT_region_ROM_end__];
+define region RAM_region = mem:[from __ICFEDIT_region_RAM_start__ to __ICFEDIT_region_RAM_end__];
+
+define block CSTACK with alignment = 8, size = __ICFEDIT_size_cstack__ { };
+define block HEAP   with alignment = 8, size = __ICFEDIT_size_heap__   { };
+
+initialize by copy { readwrite };
+do not initialize  { section .noinit };
+
+place at address mem:__ICFEDIT_intvec_start__ { readonly section .intvec };
+place in ROM_region   { readonly };
+place in RAM_region   { readwrite, block CSTACK, block HEAP };
@@ -97,7 +97,7 @@ TCP2UART Keil 工程配置说明
 打开 Keil -> Project -> Options for Target -> C/C++ -> Define

 保持现有定义，不需要额外添加：
-USE_HAL_DRIVER,STM32F103xB
+USE_HAL_DRIVER,STM32F103xE

 ========================================
 四、编译优化设置
@@ -113,8 +113,8 @@ USE_HAL_DRIVER,STM32F103xB
 ========================================

 确认 ROM 和 RAM 配置正确：
- IROM1: 0x08000000, Size: 0x10000 (64KB)
- IRAM1: 0x20000000, Size: 0x5000 (20KB)
+- IROM1: 0x08000000, Size: 0x40000 (256KB)
+- IRAM1: 0x20000000, Size: 0xC000 (48KB)

 ========================================
 六、编译验证
@@ -138,7 +138,7 @@ Debug 选项卡：

 Utilities 选项卡：
 - 选择正确的 Flash 算法
- STM32F10x Med-density Flash (64KB)
+- STM32F10x High-density Flash (256KB)

 ========================================
 快速添加方法（可选）
@@ -14,16 +14,16 @@
      <uAC6>0</uAC6>
      <TargetOption>
        <TargetCommonOption>
-          <Device>STM32F103R8</Device>
+          <Device>STM32F103RC</Device>
          <Vendor>STMicroelectronics</Vendor>
          <PackID>Keil.STM32F1xx_DFP.2.4.1</PackID>
          <PackURL>https://www.keil.com/pack/</PackURL>
-          <Cpu>IRAM(0x20000000,0x00005000) IROM(0x08000000,0x00010000) CPUTYPE("Cortex-M3") CLOCK(12000000) ELITTLE</Cpu>
+          <Cpu>IRAM(0x20000000,0x0000C000) IROM(0x08000000,0x00040000) CPUTYPE("Cortex-M3") CLOCK(12000000) ELITTLE</Cpu>
          <FlashUtilSpec></FlashUtilSpec>
          <StartupFile></StartupFile>
-          <FlashDriverDll>UL2CM3(-S0 -C0 -P0 -FD20000000 -FC1000 -FN1 -FF0STM32F10x_128 -FS08000000 -FL020000 -FP0($$Device:STM32F103R8$Flash\STM32F10x_128.FLM))</FlashDriverDll>
+          <FlashDriverDll>UL2CM3(-S0 -C0 -P0 -FD20000000 -FC1000 -FN1 -FF0STM32F10x_HD -FS08000000 -FL040000 -FP0($$Device:STM32F103RC$Flash\STM32F10x_HD.FLM))</FlashDriverDll>
          <DeviceId>0</DeviceId>
-          <RegisterFile>$$Device:STM32F103R8$Device\Include\stm32f10x.h</RegisterFile>
+          <RegisterFile>$$Device:STM32F103RC$Device\Include\stm32f10x.h</RegisterFile>
          <MemoryEnv></MemoryEnv>
          <Cmp></Cmp>
          <Asm></Asm>
@@ -33,7 +33,7 @@
          <SLE66CMisc></SLE66CMisc>
          <SLE66AMisc></SLE66AMisc>
          <SLE66LinkerMisc></SLE66LinkerMisc>
-          <SFDFile>$$Device:STM32F103R8$SVD\STM32F103xx.svd</SFDFile>
+          <SFDFile>$$Device:STM32F103RC$SVD\STM32F103xx.svd</SFDFile>
          <bCustSvd>0</bCustSvd>
          <UseEnv>0</UseEnv>
          <BinPath></BinPath>
@@ -247,12 +247,12 @@
              <IRAM>
                <Type>0</Type>
                <StartAddress>0x20000000</StartAddress>
-                <Size>0x5000</Size>
+                <Size>0xC000</Size>
              </IRAM>
              <IROM>
                <Type>1</Type>
                <StartAddress>0x8000000</StartAddress>
-                <Size>0x10000</Size>
+                <Size>0x40000</Size>
              </IROM>
              <XRAM>
                <Type>0</Type>
@@ -277,7 +277,7 @@
              <OCR_RVCT4>
                <Type>1</Type>
                <StartAddress>0x8000000</StartAddress>
-                <Size>0x10000</Size>
+                <Size>0x40000</Size>
              </OCR_RVCT4>
              <OCR_RVCT5>
                <Type>1</Type>
@@ -302,7 +302,7 @@
              <OCR_RVCT9>
                <Type>0</Type>
                <StartAddress>0x20000000</StartAddress>
-                <Size>0x5000</Size>
+                <Size>0xC000</Size>
              </OCR_RVCT9>
              <OCR_RVCT10>
                <Type>0</Type>
@@ -338,9 +338,9 @@
            <v6Rtti>0</v6Rtti>
            <VariousControls>
              <MiscControls></MiscControls>
-              <Define>USE_HAL_DRIVER,STM32F103xB</Define>
+              <Define>USE_HAL_DRIVER,STM32F103xE</Define>
              <Undefine></Undefine>
-              <IncludePath>../Core/Inc;../Drivers/STM32F1xx_HAL_Driver/Inc;../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy;../Drivers/CMSIS/Device/ST/STM32F1xx/Include;../Drivers/CMSIS/Include;../Middlewares/Third_Party/FreeRTOS/Source/include;../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2;../Middlewares/Third_Party/FreeRTOS/Source/portable/RVDS/ARM_CM3</IncludePath>
+              <IncludePath>../Core/Inc;../Drivers/STM32F1xx_HAL_Driver/Inc;../Drivers/STM32F1xx_HAL_Driver/Inc/Legacy;../Drivers/CMSIS/Device/ST/STM32F1xx/Include;../Drivers/CMSIS/Include;../Middlewares/Third_Party/FreeRTOS/Source/include;../Middlewares/Third_Party/FreeRTOS/Source/CMSIS_RTOS_V2;../Middlewares/Third_Party/FreeRTOS/Source/portable/RVDS/ARM_CM3;..\Drivers\CH390;..\Drivers\LwIP\src\include;..\Drivers\LwIP\src\include\lwip;..\Drivers\LwIP\src\include\netif;..\Drivers\LwIP\src\include\arch;..\Drivers\LwIP\port;..\App</IncludePath>
            </VariousControls>
          </Cads>
          <Aads>
@@ -1211,6 +1211,271 @@
            </File>
          </Files>
        </Group>
+        <Group>
+          <GroupName>Drivers/CH390</GroupName>
+          <Files>
+            <File>
+              <FileName>CH390.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\CH390\CH390.c</FilePath>
+            </File>
+            <File>
+              <FileName>CH390_Interface.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\CH390\CH390_Interface.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
+          <GroupName>Drivers/LwIP/core</GroupName>
+          <Files>
+            <File>
+              <FileName>altcp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\altcp.c</FilePath>
+            </File>
+            <File>
+              <FileName>altcp_alloc.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\altcp_alloc.c</FilePath>
+            </File>
+            <File>
+              <FileName>altcp_tcp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\altcp_tcp.c</FilePath>
+            </File>
+            <File>
+              <FileName>def.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\def.c</FilePath>
+            </File>
+            <File>
+              <FileName>dns.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\dns.c</FilePath>
+            </File>
+            <File>
+              <FileName>inet_chksum.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\inet_chksum.c</FilePath>
+            </File>
+            <File>
+              <FileName>init.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\init.c</FilePath>
+            </File>
+            <File>
+              <FileName>ip.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ip.c</FilePath>
+            </File>
+            <File>
+              <FileName>mem.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\mem.c</FilePath>
+            </File>
+            <File>
+              <FileName>memp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\memp.c</FilePath>
+            </File>
+            <File>
+              <FileName>netif.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\netif.c</FilePath>
+            </File>
+            <File>
+              <FileName>pbuf.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\pbuf.c</FilePath>
+            </File>
+            <File>
+              <FileName>raw.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\raw.c</FilePath>
+            </File>
+            <File>
+              <FileName>stats.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\stats.c</FilePath>
+            </File>
+            <File>
+              <FileName>sys.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\sys.c</FilePath>
+            </File>
+            <File>
+              <FileName>tcp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\tcp.c</FilePath>
+            </File>
+            <File>
+              <FileName>tcp_in.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\tcp_in.c</FilePath>
+            </File>
+            <File>
+              <FileName>tcp_out.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\tcp_out.c</FilePath>
+            </File>
+            <File>
+              <FileName>timeouts.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\timeouts.c</FilePath>
+            </File>
+            <File>
+              <FileName>udp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\udp.c</FilePath>
+            </File>
+            <File>
+              <FileName>acd.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ipv4\acd.c</FilePath>
+            </File>
+            <File>
+              <FileName>autoip.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ipv4\autoip.c</FilePath>
+            </File>
+            <File>
+              <FileName>dhcp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ipv4\dhcp.c</FilePath>
+            </File>
+            <File>
+              <FileName>etharp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ipv4\etharp.c</FilePath>
+            </File>
+            <File>
+              <FileName>icmp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ipv4\icmp.c</FilePath>
+            </File>
+            <File>
+              <FileName>igmp.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ipv4\igmp.c</FilePath>
+            </File>
+            <File>
+              <FileName>ip4.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ipv4\ip4.c</FilePath>
+            </File>
+            <File>
+              <FileName>ip4_addr.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ipv4\ip4_addr.c</FilePath>
+            </File>
+            <File>
+              <FileName>ip4_frag.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\core\ipv4\ip4_frag.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
+          <GroupName>Drivers/LwIP/api</GroupName>
+          <Files>
+            <File>
+              <FileName>api_lib.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\api\api_lib.c</FilePath>
+            </File>
+            <File>
+              <FileName>api_msg.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\api\api_msg.c</FilePath>
+            </File>
+            <File>
+              <FileName>err.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\api\err.c</FilePath>
+            </File>
+            <File>
+              <FileName>if_api.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\api\if_api.c</FilePath>
+            </File>
+            <File>
+              <FileName>netbuf.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\api\netbuf.c</FilePath>
+            </File>
+            <File>
+              <FileName>netdb.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\api\netdb.c</FilePath>
+            </File>
+            <File>
+              <FileName>netifapi.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\api\netifapi.c</FilePath>
+            </File>
+            <File>
+              <FileName>sockets.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\api\sockets.c</FilePath>
+            </File>
+            <File>
+              <FileName>tcpip.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\api\tcpip.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
+          <GroupName>Drivers/LwIP/netif</GroupName>
+          <Files>
+            <File>
+              <FileName>ethernetif.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\src\netif\ethernetif.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
+          <GroupName>Drivers/LwIP/port</GroupName>
+          <Files>
+            <File>
+              <FileName>sys_arch.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\Drivers\LwIP\port\sys_arch.c</FilePath>
+            </File>
+          </Files>
+        </Group>
+        <Group>
+          <GroupName>APP</GroupName>
+          <Files>
+            <File>
+              <FileName>config.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\App\config.c</FilePath>
+            </File>
+            <File>
+              <FileName>flash_param.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\App\flash_param.c</FilePath>
+            </File>
+            <File>
+              <FileName>tcp_client.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\App\tcp_client.c</FilePath>
+            </File>
+            <File>
+              <FileName>tcp_server.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\App\tcp_server.c</FilePath>
+            </File>
+            <File>
+              <FileName>uart_trans.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>..\App\uart_trans.c</FilePath>
+            </File>
+          </Files>
+        </Group>
        <Group>
          <GroupName>::CMSIS</GroupName>
        </Group>
@@ -1231,4 +1496,13 @@
    <files/>
  </RTE>

+  <LayerInfo>
+    <Layers>
+      <Layer>
+        <LayName>TCP2UART</LayName>
+        <LayPrjMark>1</LayPrjMark>
+      </Layer>
+    </Layers>
+  </LayerInfo>
+
 </Project>
@@ -0,0 +1,236 @@
+
+=================================================== keil-build-viewer v1.6 ==================================================
+ 
+[Search keil project] 1 item(s)
+	D:\code\STM32Project\TCP2UART\MDK-ARM\TCP2UART.uvprojx
+
+[User input] 
+[Current folder] D:\code\STM32Project\TCP2UART\MDK-ARM
+[Encoding] 936
+[Keil project path] D:\code\STM32Project\TCP2UART\MDK-ARM\TCP2UART.uvprojx
+[Keil project name] TCP2UART.uvprojx
+[Is keil v4] 0
+[target name] TCP2UART
+[final target name] TCP2UART
+
+[Device] STM32F103R8
+[Target name] 
+[Output name] TCP2UART
+[Output path] TCP2UART\
+[Listing path] .\TCP2UART\
+[Is has pack] 1
+[Is enbale LTO] 0
+[Is has user library] 0
+[Is custom scatter file] 0
+
+[TCP2UART.uvprojx]  [TCP2UART]  [STM32F103R8]  [LTO disable]
+ 
+[memory info]
+[name] IRAM [base addr] 0x20000000 [size] 0x00005000 [type] 1 [off-chip] 0 [is pack] 1 [ID] 2 
+[name] IROM [base addr] 0x08000000 [size] 0x00010000 [type] 2 [off-chip] 0 [is pack] 1 [ID] 3 
+
+
+[map file path] D:\code\STM32Project\TCP2UART\MDK-ARM\TCP2UART\TCP2UART.map
+
+[region info]
+[load region] LR_IROM1
+	[execution region] ER_IROM1, 0x08000000, 0x00010000, 0x0000D178 [memory type] 2 [memory ID] 3
+
+	[execution region] RW_IRAM1, 0x20000000, 0x00005000, 0x00004FF8 [memory type] 1 [memory ID] 2
+		[ZI block] addr: 0x2000015C, size: 0x00004E9C (20124)
+
+
+[object name max length] 24
+[object path max length] 60
+
+[object in map file]
+[object name] ch390.o                   [path] ..\Drivers\CH390\CH390.c
+[object name] ch390_interface.o         [path] ..\Drivers\CH390\CH390_Interface.c
+[object name] ch390_runtime.o           [path] ..\Drivers\CH390\ch390_runtime.c
+[object name] config.o                  [path] ..\App\config.c
+[object name] def.o                     [path] ..\Drivers\LwIP\src\core\def.c
+[object name] dma.o                     [path] ../Core/Src/dma.c
+[object name] etharp.o                  [path] ..\Drivers\LwIP\src\core\ipv4\etharp.c
+[object name] ethernet.o                [path] ..\Drivers\LwIP\src\netif\ethernet.c
+[object name] ethernetif.o              [path] ..\Drivers\LwIP\src\netif\ethernetif.c
+[object name] flash_param.o             [path] ..\App\flash_param.c
+[object name] gpio.o                    [path] ../Core/Src/gpio.c
+[object name] icmp.o                    [path] ..\Drivers\LwIP\src\core\ipv4\icmp.c
+[object name] inet_chksum.o             [path] ..\Drivers\LwIP\src\core\inet_chksum.c
+[object name] init.o                    [path] ..\Drivers\LwIP\src\core\init.c
+[object name] ip.o                      [path] ..\Drivers\LwIP\src\core\ip.c
+[object name] ip4.o                     [path] ..\Drivers\LwIP\src\core\ipv4\ip4.c
+[object name] ip4_addr.o                [path] ..\Drivers\LwIP\src\core\ipv4\ip4_addr.c
+[object name] iwdg.o                    [path] ../Core/Src/iwdg.c
+[object name] main.o                    [path] ../Core/Src/main.c
+[object name] mem.o                     [path] ..\Drivers\LwIP\src\core\mem.c
+[object name] memp.o                    [path] ..\Drivers\LwIP\src\core\memp.c
+[object name] netif.o                   [path] ..\Drivers\LwIP\src\core\netif.c
+[object name] pbuf.o                    [path] ..\Drivers\LwIP\src\core\pbuf.c
+[object name] raw.o                     [path] ..\Drivers\LwIP\src\core\raw.c
+[object name] segger_rtt.o              [path] ..\Middlewares\Third_Party\SEGGER_RTT\SEGGER_RTT.c
+[object name] segger_rtt_printf.o       [path] ..\Middlewares\Third_Party\SEGGER_RTT\SEGGER_RTT_printf.c
+[object name] spi.o                     [path] ../Core/Src/spi.c
+[object name] startup_stm32f103xb.o     [path] startup_stm32f103xb.s
+[object name] stm32f1xx_hal.o           [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c
+[object name] stm32f1xx_hal_cortex.o    [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c
+[object name] stm32f1xx_hal_dma.o       [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c
+[object name] stm32f1xx_hal_flash.o     [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c
+[object name] stm32f1xx_hal_flash_ex.o  [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c
+[object name] stm32f1xx_hal_gpio.o      [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c
+[object name] stm32f1xx_hal_iwdg.o      [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c
+[object name] stm32f1xx_hal_msp.o       [path] ../Core/Src/stm32f1xx_hal_msp.c
+[object name] stm32f1xx_hal_rcc.o       [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c
+[object name] stm32f1xx_hal_spi.o       [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_spi.c
+[object name] stm32f1xx_hal_tim.o       [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c
+[object name] stm32f1xx_hal_tim_ex.o    [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c
+[object name] stm32f1xx_hal_uart.o      [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c
+[object name] stm32f1xx_it.o            [path] ../Core/Src/stm32f1xx_it.c
+[object name] system_stm32f1xx.o        [path] ../Core/Src/system_stm32f1xx.c
+[object name] tcp.o                     [path] ..\Drivers\LwIP\src\core\tcp.c
+[object name] tcp_client.o              [path] ..\App\tcp_client.c
+[object name] tcp_in.o                  [path] ..\Drivers\LwIP\src\core\tcp_in.c
+[object name] tcp_out.o                 [path] ..\Drivers\LwIP\src\core\tcp_out.c
+[object name] tcp_server.o              [path] ..\App\tcp_server.c
+[object name] tim.o                     [path] ../Core/Src/tim.c
+[object name] timeouts.o                [path] ..\Drivers\LwIP\src\core\timeouts.c
+[object name] uart_trans.o              [path] ..\App\uart_trans.c
+[object name] usart.o                   [path] ../Core/Src/usart.c
+
+[file path in keil project]
+[old name] startup_stm32f103xb.s     [type] 1   [path] startup_stm32f103xb.s
+[old name] main.c                    [type] 1   [path] ../Core/Src/main.c
+[old name] gpio.c                    [type] 1   [path] ../Core/Src/gpio.c
+[old name] dma.c                     [type] 1   [path] ../Core/Src/dma.c
+[old name] iwdg.c                    [type] 1   [path] ../Core/Src/iwdg.c
+[old name] tim.c                     [type] 1   [path] ../Core/Src/tim.c
+[old name] spi.c                     [type] 1   [path] ../Core/Src/spi.c
+[old name] usart.c                   [type] 1   [path] ../Core/Src/usart.c
+[old name] stm32f1xx_it.c            [type] 1   [path] ../Core/Src/stm32f1xx_it.c
+[old name] stm32f1xx_hal_msp.c       [type] 1   [path] ../Core/Src/stm32f1xx_hal_msp.c
+[old name] stm32f1xx_hal_gpio_ex.c   [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio_ex.c
+[old name] stm32f1xx_hal_iwdg.c      [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_iwdg.c
+[old name] stm32f1xx_hal.c           [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal.c
+[old name] stm32f1xx_hal_rcc.c       [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc.c
+[old name] stm32f1xx_hal_rcc_ex.c    [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_rcc_ex.c
+[old name] stm32f1xx_hal_gpio.c      [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_gpio.c
+[old name] stm32f1xx_hal_dma.c       [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_dma.c
+[old name] stm32f1xx_hal_cortex.c    [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_cortex.c
+[old name] stm32f1xx_hal_pwr.c       [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_pwr.c
+[old name] stm32f1xx_hal_flash.c     [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash.c
+[old name] stm32f1xx_hal_flash_ex.c  [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_flash_ex.c
+[old name] stm32f1xx_hal_exti.c      [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_exti.c
+[old name] stm32f1xx_hal_spi.c       [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_spi.c
+[old name] stm32f1xx_hal_tim.c       [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim.c
+[old name] stm32f1xx_hal_tim_ex.c    [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_tim_ex.c
+[old name] stm32f1xx_hal_uart.c      [type] 1   [path] ../Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_hal_uart.c
+[old name] system_stm32f1xx.c        [type] 1   [path] ../Core/Src/system_stm32f1xx.c
+[old name] CH390.c                   [type] 1   [path] ..\Drivers\CH390\CH390.c
+[old name] CH390_Interface.c         [type] 1   [path] ..\Drivers\CH390\CH390_Interface.c
+[old name] ch390_runtime.c           [type] 1   [path] ..\Drivers\CH390\ch390_runtime.c
+[old name] def.c                     [type] 1   [path] ..\Drivers\LwIP\src\core\def.c
+[old name] inet_chksum.c             [type] 1   [path] ..\Drivers\LwIP\src\core\inet_chksum.c
+[old name] init.c                    [type] 1   [path] ..\Drivers\LwIP\src\core\init.c
+[old name] ip.c                      [type] 1   [path] ..\Drivers\LwIP\src\core\ip.c
+[old name] mem.c                     [type] 1   [path] ..\Drivers\LwIP\src\core\mem.c
+[old name] memp.c                    [type] 1   [path] ..\Drivers\LwIP\src\core\memp.c
+[old name] netif.c                   [type] 1   [path] ..\Drivers\LwIP\src\core\netif.c
+[old name] pbuf.c                    [type] 1   [path] ..\Drivers\LwIP\src\core\pbuf.c
+[old name] raw.c                     [type] 1   [path] ..\Drivers\LwIP\src\core\raw.c
+[old name] stats.c                   [type] 1   [path] ..\Drivers\LwIP\src\core\stats.c
+[old name] sys.c                     [type] 1   [path] ..\Drivers\LwIP\src\core\sys.c
+[old name] tcp.c                     [type] 1   [path] ..\Drivers\LwIP\src\core\tcp.c
+[old name] tcp_in.c                  [type] 1   [path] ..\Drivers\LwIP\src\core\tcp_in.c
+[old name] tcp_out.c                 [type] 1   [path] ..\Drivers\LwIP\src\core\tcp_out.c
+[old name] timeouts.c                [type] 1   [path] ..\Drivers\LwIP\src\core\timeouts.c
+[old name] udp.c                     [type] 1   [path] ..\Drivers\LwIP\src\core\udp.c
+[old name] etharp.c                  [type] 1   [path] ..\Drivers\LwIP\src\core\ipv4\etharp.c
+[old name] icmp.c                    [type] 1   [path] ..\Drivers\LwIP\src\core\ipv4\icmp.c
+[old name] ip4.c                     [type] 1   [path] ..\Drivers\LwIP\src\core\ipv4\ip4.c
+[old name] ip4_addr.c                [type] 1   [path] ..\Drivers\LwIP\src\core\ipv4\ip4_addr.c
+[old name] ip4_frag.c                [type] 1   [path] ..\Drivers\LwIP\src\core\ipv4\ip4_frag.c
+[old name] ethernet.c                [type] 1   [path] ..\Drivers\LwIP\src\netif\ethernet.c
+[old name] ethernetif.c              [type] 1   [path] ..\Drivers\LwIP\src\netif\ethernetif.c
+[old name] config.c                  [type] 1   [path] ..\App\config.c
+[old name] flash_param.c             [type] 1   [path] ..\App\flash_param.c
+[old name] tcp_client.c              [type] 1   [path] ..\App\tcp_client.c
+[old name] tcp_server.c              [type] 1   [path] ..\App\tcp_server.c
+[old name] uart_trans.c              [type] 1   [path] ..\App\uart_trans.c
+[old name] SEGGER_RTT.c              [type] 1   [path] ..\Middlewares\Third_Party\SEGGER_RTT\SEGGER_RTT.c
+[old name] SEGGER_RTT_printf.c       [type] 1   [path] ..\Middlewares\Third_Party\SEGGER_RTT\SEGGER_RTT_printf.c
+
+[record region info]
+[load region] LR_IROM1
+	[execution region] ER_IROM1, 0x08000000, 0x00010000, 0x0000D178 [type] 2 [ID] 3
+	[execution region] RW_IRAM1, 0x20000000, 0x00005000, 0x00004FF8 [type] 1 [ID] 2
+---------------------------------------------------------------------------------
+          FILE(s)         |         RAM (byte)       |       FLASH (byte)       |
+---------------------------------------------------------------------------------
+ch390.o                   |           0              |         590              |
+ch390_interface.o         |           0              |         680              |
+ch390_runtime.o           |          91              |        1534              |
+config.o                  |        1248              |        4289              |
+def.o                     |           0              |           8              |
+dma.o                     |           0              |         124              |
+etharp.o                  |         241              |        1773              |
+ethernet.o                |           0              |         250              |
+ethernetif.o              |          48              |         178              |
+flash_param.o             |           0              |         246              |
+gpio.o                    |           0              |         240              |
+icmp.o                    |           0              |         452              |
+inet_chksum.o             |           0              |         334              |
+init.o                    |           0              |          26              |
+ip.o                      |          24              |           0              |
+ip4.o                     |           2              |         780              |
+ip4_addr.o                |           0              |          50              |
+iwdg.o                    |          12              |           0              |
+main.o                    |         278              |        2937              |
+mem.o                     |        4127              |         840              |
+memp.o                    |        6496              |         472              |
+netif.o                   |          12              |         594              |
+pbuf.o                    |           0              |        1118              |
+raw.o                     |           4              |         252              |
+segger_rtt.o              |         440              |         391              |
+segger_rtt_printf.o       |           0              |          64              |
+spi.o                     |          88              |         216              |
+startup_stm32f103xb.o     |        1024              |         296              |
+stm32f1xx_hal.o           |          12              |         140              |
+stm32f1xx_hal_cortex.o    |           0              |         198              |
+stm32f1xx_hal_dma.o       |           0              |         808              |
+stm32f1xx_hal_flash.o     |          32              |         392              |
+stm32f1xx_hal_flash_ex.o  |           0              |         240              |
+stm32f1xx_hal_gpio.o      |           0              |         516              |
+stm32f1xx_hal_iwdg.o      |           0              |          12              |
+stm32f1xx_hal_msp.o       |           0              |          60              |
+stm32f1xx_hal_rcc.o       |           0              |        1258              |
+stm32f1xx_hal_spi.o       |           0              |        1510              |
+stm32f1xx_hal_tim.o       |           0              |         936              |
+stm32f1xx_hal_tim_ex.o    |           0              |         108              |
+stm32f1xx_hal_uart.o      |           0              |        2300              |
+stm32f1xx_it.o            |           0              |         490              |
+system_stm32f1xx.o        |           4              |          30              |
+tcp.o                     |          32              |        3699              |
+tcp_client.o              |        1120              |        1216              |
+tcp_in.o                  |          56              |        3720              |
+tcp_out.o                 |           0              |        3862              |
+tcp_server.o              |        1104              |         962              |
+tim.o                     |          72              |         164              |
+timeouts.o                |          12              |         402              |
+uart_trans.o              |        2936              |        1268              |
+usart.o                   |         624              |         816              |
+---------------------------------------------------------------------------------
+[memory print mode]: 0
+LR_IROM1
+        RAM 1             [0x20000000 | 0x00005000 (20480)]
+                [zi start] 1   [zi end] 49
+                RW_IRAM1  [0x20000000]|¡ö¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ¡õ_| (  19.9 KB /  20.0 KB ) 100.0%  
+ 
+        FLASH 1           [0x08000000 | 0x00010000 (65536)]
+                ER_IROM1  [0x08000000]|¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö¡ö__________| (  52.3 KB /  64.0 KB )  81.8%  
+ 
+[htm file path] D:\code\STM32Project\TCP2UART\MDK-ARM\TCP2UART\TCP2UART.htm
+Maximum Stack Usage =        968 bytes + Unknown(Functions without stacksize, Cycles, Untraceable Function Pointers)
+ 
+=============================================================================================================================
+
+run time: 0.179 s
@@ -40,7 +40,7 @@ __initial_sp
 ;   <o>  Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
 ; </h>

-Heap_Size      EQU     0x1000
+Heap_Size      EQU     0x0

                AREA    HEAP, NOINIT, READWRITE, ALIGN=3
 __heap_base
@@ -39,7 +39,7 @@ __initial_sp
 ;   <o>  Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
 ; </h>

-Heap_Size      EQU     0x2800
+Heap_Size      EQU     0x0

                AREA    HEAP, NOINIT, READWRITE, ALIGN=3
 __heap_base
@@ -31,7 +31,7 @@ Dma.USART2_RX.0.Direction=DMA_PERIPH_TO_MEMORY
 Dma.USART2_RX.0.Instance=DMA1_Channel6
 Dma.USART2_RX.0.MemDataAlignment=DMA_MDATAALIGN_BYTE
 Dma.USART2_RX.0.MemInc=DMA_MINC_ENABLE
-Dma.USART2_RX.0.Mode=DMA_NORMAL
+Dma.USART2_RX.0.Mode=DMA_CIRCULAR
 Dma.USART2_RX.0.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
 Dma.USART2_RX.0.PeriphInc=DMA_PINC_DISABLE
 Dma.USART2_RX.0.Priority=DMA_PRIORITY_LOW
@@ -49,7 +49,7 @@ Dma.USART3_RX.4.Direction=DMA_PERIPH_TO_MEMORY
 Dma.USART3_RX.4.Instance=DMA1_Channel3
 Dma.USART3_RX.4.MemDataAlignment=DMA_MDATAALIGN_BYTE
 Dma.USART3_RX.4.MemInc=DMA_MINC_ENABLE
-Dma.USART3_RX.4.Mode=DMA_NORMAL
+Dma.USART3_RX.4.Mode=DMA_CIRCULAR
 Dma.USART3_RX.4.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
 Dma.USART3_RX.4.PeriphInc=DMA_PINC_DISABLE
 Dma.USART3_RX.4.Priority=DMA_PRIORITY_LOW
@@ -63,12 +63,27 @@ Dma.USART3_TX.5.PeriphDataAlignment=DMA_PDATAALIGN_BYTE
 Dma.USART3_TX.5.PeriphInc=DMA_PINC_DISABLE
 Dma.USART3_TX.5.Priority=DMA_PRIORITY_LOW
 Dma.USART3_TX.5.RequestParameters=Instance,Direction,PeriphInc,MemInc,PeriphDataAlignment,MemDataAlignment,Mode,Priority
-FREERTOS.IPParameters=Tasks01
-FREERTOS.Tasks01=defaultTask,24,128,StartDefaultTask,Default,NULL,Dynamic,NULL,NULL
+FREERTOS.FootprintOK=true
+FREERTOS.IPParameters=Tasks01,configUSE_PREEMPTION,configTICK_RATE_HZ,configMINIMAL_STACK_SIZE,configTOTAL_HEAP_SIZE,configMAX_PRIORITIES,configUSE_IDLE_HOOK,configUSE_TICK_HOOK,configUSE_MUTEXES,configUSE_COUNTING_SEMAPHORES,configUSE_RECURSIVE_MUTEXES,configCHECK_FOR_STACK_OVERFLOW,configUSE_MALLOC_FAILED_HOOK,configSUPPORT_STATIC_ALLOCATION,configSUPPORT_DYNAMIC_ALLOCATION
+FREERTOS.Tasks01=defaultTask\,0\,128\,StartDefaultTask\,Default\,NULL
+FREERTOS.configCHECK_FOR_STACK_OVERFLOW=2
+FREERTOS.configMAX_PRIORITIES=7
+FREERTOS.configMINIMAL_STACK_SIZE=128
+FREERTOS.configSUPPORT_DYNAMIC_ALLOCATION=1
+FREERTOS.configSUPPORT_STATIC_ALLOCATION=0
+FREERTOS.configTICK_RATE_HZ=1000
+FREERTOS.configTOTAL_HEAP_SIZE=10240
+FREERTOS.configUSE_COUNTING_SEMAPHORES=1
+FREERTOS.configUSE_IDLE_HOOK=0
+FREERTOS.configUSE_MALLOC_FAILED_HOOK=1
+FREERTOS.configUSE_MUTEXES=1
+FREERTOS.configUSE_PREEMPTION=1
+FREERTOS.configUSE_RECURSIVE_MUTEXES=1
+FREERTOS.configUSE_TICK_HOOK=0
 File.Version=6
 GPIO.groupedBy=Group By Peripherals
 KeepUserPlacement=false
-Mcu.CPN=STM32F103R8T6
+Mcu.CPN=STM32F103RCT6
 Mcu.Family=STM32F1
 Mcu.IP0=DMA
 Mcu.IP1=FREERTOS
@@ -77,24 +92,15 @@ Mcu.IP3=NVIC
 Mcu.IP4=RCC
 Mcu.IP5=SPI1
 Mcu.IP6=SYS
-Mcu.IP7=USART1
-Mcu.IP8=USART2
-Mcu.IP9=USART3
-Mcu.IPNb=10
-Mcu.Name=STM32F103R(8-B)Tx
+Mcu.IP7=TIM4
+Mcu.IP8=USART1
+Mcu.IP9=USART2
+Mcu.IP10=USART3
+Mcu.IPNb=11
+Mcu.Name=STM32F103R(C-D-E)Tx
 Mcu.Package=LQFP64
 Mcu.Pin0=PC13-TAMPER-RTC
 Mcu.Pin1=PD0-OSC_IN
-Mcu.Pin10=PB1
-Mcu.Pin11=PB10
-Mcu.Pin12=PB11
-Mcu.Pin13=PA9
-Mcu.Pin14=PA10
-Mcu.Pin15=PA13
-Mcu.Pin16=PA14
-Mcu.Pin17=VP_FREERTOS_VS_CMSIS_V2
-Mcu.Pin18=VP_IWDG_VS_IWDG
-Mcu.Pin19=VP_SYS_VS_Systick
 Mcu.Pin2=PD1-OSC_OUT
 Mcu.Pin3=PA2
 Mcu.Pin4=PA3
@@ -103,36 +109,46 @@ Mcu.Pin6=PA5
 Mcu.Pin7=PA6
 Mcu.Pin8=PA7
 Mcu.Pin9=PB0
-Mcu.PinsNb=20
+Mcu.Pin10=PB1
+Mcu.Pin11=PB10
+Mcu.Pin12=PB11
+Mcu.Pin13=PA9
+Mcu.Pin14=PA10
+Mcu.Pin15=PA13
+Mcu.Pin16=PA14
+Mcu.Pin17=VP_FREERTOS_VS_ENABLE
+Mcu.Pin18=VP_IWDG_VS_IWDG
+Mcu.Pin19=VP_SYS_VS_TIM4
+Mcu.Pin20=VP_TIM4_VS_ClockSourceINT
+Mcu.PinsNb=21
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
-Mcu.UserName=STM32F103R8Tx
+Mcu.UserName=STM32F103RCTx
 MxCube.Version=6.16.1
 MxDb.Version=DB.6.0.161
-NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
-NVIC.DMA1_Channel2_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
-NVIC.DMA1_Channel3_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
-NVIC.DMA1_Channel4_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
-NVIC.DMA1_Channel5_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
-NVIC.DMA1_Channel6_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
-NVIC.DMA1_Channel7_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
-NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
+NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
+NVIC.DMA1_Channel2_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true
+NVIC.DMA1_Channel3_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true
+NVIC.DMA1_Channel4_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true
+NVIC.DMA1_Channel5_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true
+NVIC.DMA1_Channel6_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true
+NVIC.DMA1_Channel7_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true
+NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
+NVIC.EXTI0_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true
 NVIC.ForceEnableDMAVector=true
-NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
-NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
-NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
-NVIC.PendSV_IRQn=true\:15\:0\:false\:false\:false\:true\:false\:false\:false
+NVIC.HardFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
+NVIC.MemoryManagement_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
+NVIC.NonMaskableInt_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
+NVIC.PendSV_IRQn=true\:15\:0\:false\:false\:true\:false\:false\:false
 NVIC.PriorityGroup=NVIC_PRIORITYGROUP_4
-NVIC.SPI1_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
-NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:false\:false\:false\:false\:false
-NVIC.SavedPendsvIrqHandlerGenerated=true
-NVIC.SavedSvcallIrqHandlerGenerated=true
-NVIC.SavedSystickIrqHandlerGenerated=true
-NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:true\:false\:true\:false
-NVIC.USART1_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
-NVIC.USART2_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true\:true
-NVIC.USART3_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true\:true
-NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false\:false
+NVIC.SPI1_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true
+NVIC.SVCall_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
+NVIC.SysTick_IRQn=true\:15\:0\:false\:false\:true\:true\:false\:false
+NVIC.TIM4_IRQn=true\:0\:0\:false\:false\:true\:true\:true\:true
+NVIC.USART1_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true
+NVIC.USART2_IRQn=true\:5\:0\:false\:false\:true\:true\:false\:true
+NVIC.USART3_IRQn=true\:5\:0\:false\:false\:true\:true\:true\:true
+NVIC.UsageFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 PA10.Mode=Asynchronous
 PA10.Signal=USART1_RX
 PA13.Mode=Serial_Wire
@@ -143,8 +159,8 @@ PA2.Mode=Asynchronous
 PA2.Signal=USART2_TX
 PA3.Mode=Asynchronous
 PA3.Signal=USART2_RX
-PA4.Mode=NSS_Signal_Hard_Output
-PA4.Signal=SPI1_NSS
+PA4.Locked=true
+PA4.Signal=GPIO_Output
 PA5.Mode=Full_Duplex_Master
 PA5.Signal=SPI1_SCK
 PA6.Mode=Full_Duplex_Master
@@ -165,8 +181,8 @@ PC13-TAMPER-RTC.Locked=true
 PC13-TAMPER-RTC.Signal=GPIO_Output
 PCC.Checker=false
 PCC.Line=STM32F103
-PCC.MCU=STM32F103R(8-B)Tx
-PCC.PartNumber=STM32F103R8Tx
+PCC.MCU=STM32F103R(C-D-E)Tx
+PCC.PartNumber=STM32F103RCTx
 PCC.Series=STM32F1
 PCC.Temperature=25
 PCC.Vdd=3.3
@@ -184,12 +200,12 @@ ProjectManager.CoupleFile=true
 ProjectManager.CustomerFirmwarePackage=
 ProjectManager.DefaultFWLocation=true
 ProjectManager.DeletePrevious=true
-ProjectManager.DeviceId=STM32F103R8Tx
+ProjectManager.DeviceId=STM32F103RCTx
 ProjectManager.FirmwarePackage=STM32Cube FW_F1 V1.8.7
 ProjectManager.FreePins=false
 ProjectManager.FreePinsContext=
 ProjectManager.HalAssertFull=false
-ProjectManager.HeapSize=0x1000
+ProjectManager.HeapSize=0x200
 ProjectManager.KeepUserCode=true
 ProjectManager.LastFirmware=true
 ProjectManager.LibraryCopy=0
@@ -207,7 +223,7 @@ ProjectManager.ToolChainLocation=
 ProjectManager.UAScriptAfterPath=
 ProjectManager.UAScriptBeforePath=
 ProjectManager.UnderRoot=false
-ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_IWDG_Init-IWDG-false-HAL-true,5-MX_USART1_UART_Init-USART1-false-HAL-true,6-MX_USART2_UART_Init-USART2-false-HAL-true,7-MX_USART3_UART_Init-USART3-false-HAL-true,8-MX_SPI1_Init-SPI1-false-HAL-true
+ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_DMA_Init-DMA-false-HAL-true,4-MX_IWDG_Init-IWDG-false-HAL-true,5-MX_USART1_UART_Init-USART1-false-HAL-true,6-MX_USART2_UART_Init-USART2-false-HAL-true,7-MX_USART3_UART_Init-USART3-false-HAL-true,8-MX_SPI1_Init-SPI1-false-HAL-true,9-MX_FREERTOS_Init-FREERTOS-false-HAL-true,10-MX_TIM4_Init-TIM4-false-HAL-true
 RCC.ADCFreqValue=36000000
 RCC.AHBFreq_Value=72000000
 RCC.APB1CLKDivider=RCC_HCLK_DIV2
@@ -235,24 +251,30 @@ RCC.USBFreq_Value=72000000
 RCC.VCOOutput2Freq_Value=8000000
 SH.GPXTI0.0=GPIO_EXTI0
 SH.GPXTI0.ConfNb=1
-SPI1.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_4
-SPI1.CalculateBaudRate=18.0 MBits/s
+SPI1.BaudRatePrescaler=SPI_BAUDRATEPRESCALER_8
+SPI1.CLKPhase=SPI_PHASE_2EDGE
+SPI1.CLKPolarity=SPI_POLARITY_HIGH
+SPI1.CalculateBaudRate=9.0 MBits/s
 SPI1.Direction=SPI_DIRECTION_2LINES
-SPI1.IPParameters=VirtualType,Mode,Direction,CalculateBaudRate,BaudRatePrescaler,VirtualNSS
+SPI1.IPParameters=VirtualType,Mode,Direction,CalculateBaudRate,BaudRatePrescaler,VirtualNSS,CLKPolarity,CLKPhase
 SPI1.Mode=SPI_MODE_MASTER
-SPI1.VirtualNSS=VM_NSSHARD
+SPI1.VirtualNSS=VM_NSSSOFT
 SPI1.VirtualType=VM_MASTER
+TIM4.IPParameters=Prescaler,Period
+TIM4.Period=999
+TIM4.Prescaler=71
 USART1.IPParameters=VirtualMode
 USART1.VirtualMode=VM_ASYNC
 USART2.IPParameters=VirtualMode
 USART2.VirtualMode=VM_ASYNC
 USART3.IPParameters=VirtualMode
 USART3.VirtualMode=VM_ASYNC
-VP_FREERTOS_VS_CMSIS_V2.Mode=CMSIS_V2
-VP_FREERTOS_VS_CMSIS_V2.Signal=FREERTOS_VS_CMSIS_V2
+VP_FREERTOS_VS_ENABLE.Mode=Enabled
+VP_FREERTOS_VS_ENABLE.Signal=FREERTOS_VS_ENABLE
 VP_IWDG_VS_IWDG.Mode=IWDG_Activate
 VP_IWDG_VS_IWDG.Signal=IWDG_VS_IWDG
-VP_SYS_VS_Systick.Mode=SysTick
-VP_SYS_VS_Systick.Signal=SYS_VS_Systick
+VP_SYS_VS_TIM4.Mode=TIM4
+VP_SYS_VS_TIM4.Signal=SYS_VS_TIM4
+VP_TIM4_VS_ClockSourceINT.Mode=Internal
+VP_TIM4_VS_ClockSourceINT.Signal=TIM4_VS_ClockSourceINT
 board=custom
-rtos.0.ip=FREERTOS
@@ -0,0 +1,267 @@
+# TCP2UART 调试指导
+
+## 1. 适用范围
+
+本指导面向当前 `TCP2UART` 工程，覆盖以下四类调试场景：
+
+1. `STM32F103RCT6 + CH390D` 的基础 bring-up
+2. `SEGGER RTT`、异常陷阱与 FreeRTOS 任务运行状态确认
+3. `USART1` 配置口、`USART2/USART3` 数据口与 `MUX / NET / LINK[idx]` 协议联调
+4. `TCP Server / TCP Client / UART` 三层数据通路联调与问题隔离
+
+本指导默认基线如下：
+
+1. 当前工程采用 `FreeRTOS` 任务调度架构
+2. `CH390` 运行时访问由 `xSpiMutex` 保护，`NetworkTask` 持有主要访问权
+3. 调试输出统一使用 `SEGGER RTT`
+4. 当前应用层协议模型已经收敛到 `MUX / NET / LINK[idx]`
+5. 当前代码应以 `MDK-ARM` 工程构建结果为准
+
+---
+
+## 2. 当前工程边界与真实状态
+
+在进入现场调试前，先统一以下工程边界：
+
+1. 当前项目的主要软件路径已经切换为：
+   - `NET`：网络基础参数
+   - `LINK[idx]`：链路配置记录
+   - `MUX`：数据口承载模式
+2. 对外 AT 配置面应只围绕以下命令展开：
+   - `AT` / `AT+?` / `AT+QUERY`
+   - `AT+MUX` / `AT+NET` / `AT+LINK`
+   - `AT+SAVE` / `AT+RESET` / `AT+DEFAULT`
+3. 已有结论表明：
+   - MCU 启动、RTT、FreeRTOS 调度、TIM4 心跳路径可工作
+   - `CH390D` 基础寄存器读写与 `lwIP netif` 基本链路已经打通过一次
+   - 真实硬件侧曾定位到 `CH390D` 供电滤波电容虚焊问题
+4. 当前调试重点是：
+   - FreeRTOS 任务是否正常创建与调度
+   - `MUX / NET / LINK[idx]` 协议是否与代码一致
+   - UART / TCP / CH390 三层通路是否协同稳定
+   - 参数保存、复位和恢复流程是否可靠
+
+---
+
+## 3. 代码入口与调试责任边界
+
+### 3.1 启动与 FreeRTOS 入口
+
+以下代码路径是 bring-up 的第一现场：
+
+1. `Core/Src/main.c`
+   - `main()`：总启动入口
+   - `SystemClock_Config()`：时钟初始化
+   - `MX_FREERTOS_Init()`：FreeRTOS 任务创建（在 `freertos.c` 中实现）
+2. `Core/Src/freertos.c`
+   - `StartDefaultTask()`：默认任务（LED 心跳 + 看门狗）
+   - `MX_FREERTOS_Init()`：用户任务创建入口
+3. `Core/Src/stm32f1xx_it.c`
+   - 故障与中断入口
+   - `TIM4_IRQHandler`：HAL 时间基准
+   - `USART1/2/3`、`EXTI0`、DMA 回调等联调关键入口
+
+### 3.2 CH390 责任边界
+
+当前 CH390 调试必须遵守以下责任边界：
+
+1. `Drivers/CH390/CH390_Interface.c`：GPIO / SPI / 寄存器与内存事务
+2. `Drivers/CH390/CH390.c`：芯片级 helper
+3. `Drivers/CH390/ch390_runtime.c`：唯一的运行时拥有者
+4. `Drivers/LwIP/src/netif/ethernetif.c`：netif glue 与轮询桥接
+5. SPI 访问由 `xSpiMutex` 保护，避免多任务竞争
+
+### 3.3 配置口与业务口边界
+
+1. `USART1`：AT 配置口，接收 `AT` 命令
+2. `USART2 / USART3`：数据口，普通透传或 MUX 承载
+
+---
+
+## 4. 当前硬件与调试工具基线
+
+### 4.1 核心硬件对象
+
+1. MCU：`STM32F103RCT6`（256KB Flash / 48KB SRAM）
+2. 以太网芯片：`CH390D`
+3. 配置串口：`USART1`
+4. 数据串口：`USART2 / USART3`
+5. 调试输出：`SEGGER RTT`
+
+### 4.2 构建与下载基线
+
+1. `MDK-ARM/TCP2UART.uvprojx`
+2. 启动文件：`startup_stm32f103xe.s`
+3. 目标器件：`STM32F103RC`
+4. 预处理器宏：`USE_HAL_DRIVER, STM32F103xE`
+
+### 4.3 常用调试工具
+
+1. `Keil MDK-ARM`
+2. `ST-Link / J-Link`
+3. `SEGGER RTT Viewer`
+4. `PowerShell`
+5. `tools/start_tcp_debug_server.ps1`
+6. `tools/tcp_debug_server.py`
+
+---
+
+## 5. FreeRTOS 专项调试
+
+### 5.1 任务状态检查
+
+使用 `vTaskList` 获取所有任务运行状态：
+
+```c
+char buf[512];
+vTaskList(buf);
+SEGGER_RTT_WriteString(0, buf);
+```
+
+输出格式：
+
+```text
+任务名        状态  优先级  剩余栈  编号
+NetworkTask   R     4       120     1
+UartTask      B     4       200     2
+ConfigTask    B     3       150     3
+RouteTask     R     3       180     4
+DefaultTask   B     1       80      5
+IDLE          R     0       100     6
+Tmr Svc       B     2       90      7
+```
+
+状态码：`R`=Ready, `B`=Blocked, `S`=Suspended, `D`=Deleted, `I`=Invalid
+
+### 5.2 栈溢出检测
+
+已启用 `configCHECK_FOR_STACK_OVERFLOW = 2`，溢出时自动调用：
+
+```c
+void vApplicationStackOverflowHook(TaskHandle_t xTask, char *pcTaskName)
+{
+    SEGGER_RTT_printf(0, "STACK OVERFLOW: %s\n", pcTaskName);
+    __BKPT(0);
+}
+```
+
+### 5.3 堆内存失败检测
+
+已启用 `configUSE_MALLOC_FAILED_HOOK`，分配失败时自动调用：
+
+```c
+void vApplicationMallocFailedHook(void)
+{
+    SEGGER_RTT_printf(0, "MALLOC FAILED: Free heap = %u\n", xPortGetFreeHeapSize());
+    __BKPT(0);
+}
+```
+
+### 5.4 常见 FreeRTOS 调试陷阱
+
+1. **优先级反转**：使用 Mutex（含优先级继承）而非 Binary Semaphore 保护共享资源
+2. **死锁**：多 Mutex 场景确保所有任务按相同顺序获取
+3. **中断优先级**：FreeRTOS 可管理的 ISR 优先级必须 >= `configMAX_SYSCALL_INTERRUPT_PRIORITY`（本工程 5）
+4. **栈不足**：每个任务定期调用 `uxTaskGetStackHighWaterMark(NULL)` 检查剩余栈
+5. **禁止在中断中调用阻塞 API**：必须使用 `FromISR` 后缀版本
+
+---
+
+## 6. 启动阶段调试顺序
+
+建议按 P0 ~ P5 顺序推进，不要跳层。
+
+### 6.1 P0：确认最小基础条件
+
+1. `MDK-ARM` 可构建并产出新的 `axf/hex/map`
+2. 板卡可正常下载与复位
+3. RTT 可连接并看到启动输出
+4. FreeRTOS 任务创建成功，`DefaultTask` LED 心跳可工作
+5. `TIM4` 1ms tick 正常运行
+
+### 6.2 P1：确认 FreeRTOS 调度正常
+
+上电或复位后，优先确认：
+
+1. `StartDefaultTask` 是否进入运行
+2. `vTaskList` 输出是否显示所有预期任务
+3. `xPortGetFreeHeapSize()` 返回值是否合理
+4. 无 `STACK OVERFLOW` 或 `MALLOC FAILED` 输出
+
+### 6.3 P2：确认 CH390 初始化链路
+
+启动阶段应重点关注 `NetworkTask` 中初始化日志：
+
+1. `ETH init: gpio`
+2. `ETH init: spi`
+3. `ETH init: reset`
+4. `ETH init: probe`
+5. `ETH init: default`
+6. `ETH init: mac`
+7. `ETH init: done`
+
+### 6.4 P3：确认 TCP 链路
+
+1. lwIP `tcpip_thread` 是否正常运行
+2. TCP Server 是否在指定端口监听
+3. TCP Client 是否成功连接远端
+
+---
+
+## 7. MUX / NET / LINK[idx] 联调指导
+
+### 7.1 协议总则
+
+与裸机版本完全一致，参见 `AT固件使用手册.md`。
+
+### 7.2 推荐最小 MUX 联调顺序
+
+1. 先在 `MUX=0` 下跑通原始透传
+2. 再切换 `MUX=1`
+3. 先发一个控制帧，确认 `DSTMASK=0x00` 路径可通
+4. 再发一个单目标数据帧
+5. 最后验证多目标位图转发
+
+---
+
+## 8. 异常、卡死与假死排查
+
+### 8.1 看到 `TRAP:` 时怎么做
+
+1. 先记录 RTT 中的 trap 标签
+2. 立刻用调试器查看当前 PC / LR / 调用栈
+3. 结合 `Core/Src/stm32f1xx_it.c` 中对应 handler 定位异常类型
+
+### 8.2 FreeRTOS 任务卡死时怎么做
+
+1. 使用 `vTaskList` 检查各任务状态
+2. 如果某个任务始终 `B`(Blocked)，检查其等待的队列/信号量
+3. 检查是否有 Mutex 被持有但从未释放
+4. 使用调试器暂停，查看各任务的调用栈
+
+### 8.3 常见 FreeRTOS 陷阱
+
+1. 在 ISR 中误调用阻塞 API（如 `xQueueSend` 而非 `xQueueSendFromISR`）
+2. 中断优先级低于 `configMAX_SYSCALL_INTERRUPT_PRIORITY` 但调用了 FreeRTOS API
+3. Mutex 持有期间任务被删除导致 Mutex 永不释放
+4. 栈溢出导致邻近变量被破坏
+
+---
+
+## 9. 常见误区
+
+1. 不要继续沿用"CH390 恒为全 `0xFF`"过时结论
+2. 不要在多个任务中直接访问 CH390 SPI（必须通过 Mutex 保护）
+3. 不要在没有芯片脚侧证据前，只凭 GPIO 判断总线正常
+4. 不要在基础寄存器读写尚不可信时，直接调高层业务
+5. 不要在 ISR 中执行复杂 SPI 事务或调用阻塞 API
+6. 不要忽视 `configCHECK_FOR_STACK_OVERFLOW` 报告
+
+---
+
+## 10. 推荐配套阅读
+
+1. `AT固件使用手册.md`
+2. `项目技术实现.md`
+3. `项目需求说明.md`
+4. `Keil工程配置说明.txt`
@@ -1,59 +1,185 @@
 # TCP2UART 项目需求说明

-## 一、项目概述
+## 一、项目目标

-基于 STM32F103 单片机和 FreeRTOS 开发一款具有双网口通信功能的 TCP 串口透传设备，实现网络数据与串口数据之间的双向透明传输。
+本项目基于 `STM32F103RCT6` 与 `CH390D` 实现一台多实例 TCP 与双串口数据透传设备。

-## 二、硬件平台
+最终对外协议模型固定为：

-| 项目 | 说明 |
+1. `MUX`：控制串口侧是否采用 MUX 承载
+2. `NET`：全局静态网络配置
+3. `LINK[idx]`：按实例索引组织的链路配置
+
+系统必须支持：
+
+- `2` 路 TCP Server 实例
+- `2` 路 TCP Client 实例
+- `UART1` 作为 AT 配置口
+- `UART2 / UART3` 作为业务数据口
+
+## 二、硬件与软件边界
+
+### 2.1 硬件边界
+
+- 主控：`STM32F103RCT6`（256KB Flash / 48KB SRAM）
+- 以太网芯片：`CH390D`
+- 网卡数量：`1`
+- 配置口：`UART1`
+- 数据口：`UART2`、`UART3`
+
+### 2.2 软件边界
+
+- 执行模型：`FreeRTOS`
+- 网络协议栈：`lwIP + NO_SYS=0`（支持 socket/netconn 线程安全 API）
+- 调试输出：`SEGGER RTT`
+- 采用 `FreeRTOS` 任务调度
+- 采用 `lwIP socket/netconn` 或 `RAW API` 实现多路 TCP 并发
+- 不包含 DHCP 协议支持
+
+## 三、最终协议需求
+
+### 3.1 MUX 帧格式
+
+所有 MUX 数据承载必须使用如下格式：
+
+```text
+SYNC | LEN_H | LEN_L | SRCID | DSTMASK | PAYLOAD | TAIL
+```
+
+要求：
+
+- `DSTMASK != 0x00`：业务数据帧
+- `DSTMASK = 0x00`：系统控制帧
+- 系统控制帧承载 AT 文本命令
+- AT 文本命令必须以 `\r\n` 结尾
+
+### 3.2 统一端点编码
+
+系统必须使用统一端点编码，同时覆盖 UART 与 TCP 逻辑实例：
+
+| 端点 | 编码 |
 |------|------|
-| 主控芯片 | STM32F103R8T6（后续大批量生产可用 GD32 替代） |
-| 以太网芯片 | CH390D |
-| PCB 设计工具 | 立创 EDA（避免 AD 版权纠纷） |
-| 串口通道 | 2 路 UART |
+| `C1` | `0x01` |
+| `C2` | `0x02` |
+| `UART2` | `0x04` |
+| `UART3` | `0x08` |
+| `S1` | `0x10` |
+| `S2` | `0x20` |

-## 三、软件平台
+要求：

-| 项目 | 说明 |
-|------|------|
-| 开发环境 | STM32CubeMX + HAL 库 |
-| 操作系统 | FreeRTOS |
-| 协议栈 | 标准 TCP/IP 协议 |
+- `SRCID` 为单值
+- `DSTMASK` 为位图
+- `DSTMASK=0x00` 仅保留给系统控制帧

-## 四、核心功能需求
+## 四、AT 接口需求

-### 4.1 双链路 TCP 通信
+### 4.1 命令分类

- **Server 链路**：设备作为 TCP Server，监听指定端口，等待外部客户端连接
- **Client 链路**：设备作为 TCP Client，主动连接远程服务器
- 两条链路共享**同一个对外 IP 地址**
+AT 协议必须收敛为以下三类命令：

-### 4.2 串口透传
+1. `AT+MUX`
+2. `AT+NET`
+3. `AT+LINK`

- **Server 链路数据** <==> **UART2** 双向透传
- **Client 链路数据** <==> **UART3** 双向透传
- 仅透传 TCP 数据区（Payload），无需解析串口协议
+不再保留历史展开式实例字段命令。

-### 4.3 参数配置
+### 4.2 MUX 命令需求

- 支持通过 **UART1** 串口命令修改设备 IP 地址等网络参数
- 配置参数需掉电保存
+- `AT+MUX=0/1`：设置全局 MUX 模式
+- `AT+MUX?`：查询当前 MUX 模式

-### 4.4 数据可靠性
+### 4.3 NET 命令需求

- 确保 TCP 数据与串口数据双向传输不丢包
- 提供丢包率测试方案及测试数据
+`NET` 必须统一表达以下静态网络参数：

-## 五、交付物
+```text
+IP,MASK,GW,MAC
+```

-1. 原理图及 PCB 设计文件（立创 EDA 格式）
-2. STM32 固件源码（CubeMX 工程 + HAL 库 + FreeRTOS）
-3. 丢包测试方案及测试工具/数据
-4. 使用说明文档
+说明：

-## 六、约束条件
+- 设备只有一张网卡，因此本地 IP 不按实例拆分
+- DHCP 不属于协议需求范围

- 通信协议：标准 TCP/IP
- 串口透传：纯数据透传，不解析上层协议
- 硬件尺寸及供电参数由甲方提供
+### 4.4 LINK 命令需求
+
+`LINK[idx]` 必须统一表达如下字段：
+
+```text
+EN,LPORT,RIP,RPORT,UART
+```
+
+要求：
+
+- `idx` 固定映射四个实例：`0=S1`、`1=S2`、`2=C1`、`3=C2`
+- `Server` 与 `Client` 共用同一条 `LINK` 配置模型
+- `LPORT` 必须可配置
+- `RIP / RPORT` 必须可配置
+- `UART` 必须可配置
+
+## 五、功能需求
+
+### 5.1 TCP 功能
+
+- 支持 `2` 路 Server
+- 支持 `2` 路 Client
+- 每个实例通过 `LINK[idx]` 配置其本地端口、对端地址、对端端口和串口路由
+
+### 5.2 串口透传功能
+
+- `UART2 / UART3` 支持普通透传模式与 MUX 透传模式
+- 当需要多实例共享数据口时，必须启用 MUX 模式
+- 业务数据流向由 `SRCID / DSTMASK` 决定
+
+### 5.3 系统控制功能
+
+- 系统控制帧由 `DSTMASK=0x00` 表示
+- 系统控制帧进入 AT 解析路径
+- 控制文本必须以 `\r\n` 结束
+
+### 5.4 参数保存功能
+
+- 参数修改后支持 `SAVE`
+- 支持 `RESET` 后按保存配置启动
+- 支持恢复默认配置
+
+## 六、FreeRTOS 任务架构需求
+
+### 6.1 任务划分
+
+系统至少应包含以下 FreeRTOS 任务：
+
+| 任务 | 优先级 | 职责 |
+|------|--------|------|
+| NetworkTask | 高 | CH390 事件轮询 + lwIP tcpip 处理 |
+| UartTask | 高 | UART DMA/IDLE 接收 + MUX 帧处理 |
+| ConfigTask | 中 | AT 命令解析与响应 |
+| RouteTask | 中 | SRCID/DSTMASK 数据路由 |
+| DefaultTask | 低 | LED 心跳 + 看门狗 |
+
+### 6.2 任务间通信
+
+- 使用 `Queue` 传递 UART 接收数据帧
+- 使用 `Semaphore` 同步 CH390 中断事件
+- 使用 `Mutex` 保护 SPI/CH390 共享访问
+- 使用 `StreamBuffer` 传递 TCP 数据到 UART 方向
+
+## 七、非功能需求
+
+1. 满足 `STM32F103RCT6` 的 `256KB Flash / 48KB SRAM` 约束
+2. 工程可在 `MDK-ARM` 下构建
+3. 调试输出统一使用 `SEGGER RTT`
+4. 不引入 DHCP、DNS、UDP 等当前非目标协议
+5. FreeRTOS 堆使用 `heap_4.c`，总堆大小建议 `10KB`
+6. 所有任务栈通过 `uxTaskGetStackHighWaterMark` 监控
+
+## 八、验收口径
+
+验收时以下几点必须同时成立：
+
+1. 文档只使用 `MUX / NET / LINK` 作为最终协议模型
+2. 文档不再出现历史 `S1... / C1...` 外部字段
+3. 串口控制文本统一规定为 `\r\n` 结束
+4. MUX 帧格式与端点编码在需求、手册、技术实现三份文档中表述一致
+5. FreeRTOS 任务无死锁、无栈溢出、无优先级反转
Author	SHA1	Message	Date
gaoro-xiao	dc277b040b	fix: 更新.gitignore以排除Keil构建日志和Wireshark日志文件	2026-04-13 15:50:16 +08:00
gaoro-xiao	c21d85a9da	refactor: 适配STM32F103RCT6 + FreeRTOS工程框架，同步baremetal-r8协议手册 - IOC: MCU切换为STM32F103RCTx，添加FREERTOS+TIM4中间件，HAL时间基准改为TIM4 - Keil uvprojx: 目标器件RC，Flash 256KB/48KB SRAM，宏xE，HD Flash算法，启动文件xe.s - EWARM ewp: 宏xE，ICF/启动文件切换为xe版本 - 启动文件: Stack_Size 0x400→0x800适配FreeRTOS - 重写项目需求说明/技术实现文档，描述FreeRTOS 5任务架构+lwIP NO_SYS=0 - 新增AT固件使用手册(MUX/NET/LINK协议)和工程调试指南(FreeRTOS专项)	2026-04-09 20:22:48 +08:00
gaoro-xiao	68c64959c7	refactor: 准备R8裸机迁移工程基线	2026-03-30 14:41:13 +08:00
gaoro-xiao	7ee96bc08d	fix: 统一R8工程目标并修复MDK编译前置问题	2026-03-30 13:14:37 +08:00