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TCP2UART Keil 工程配置说明
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由于 Keil 工程文件格式复杂，建议在 Keil uVision 中手动添加以下配置。

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一、添加包含路径 (Include Paths)
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打开 Keil -> Project -> Options for Target -> C/C++ -> Include Paths

添加以下路径（用分号分隔）：
../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

完整的 Include Paths 应该是：
../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

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二、添加源文件分组 (Source Groups)
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在 Project 窗口中右键 -> Add Group，创建以下分组并添加文件：

【1】Drivers/CH390
    添加文件：
    - ../Drivers/CH390/CH390.c
    - ../Drivers/CH390/CH390_Interface.c

【2】Drivers/LwIP/core
    添加文件：
    - ../Drivers/LwIP/src/core/def.c
    - ../Drivers/LwIP/src/core/dns.c
    - ../Drivers/LwIP/src/core/inet_chksum.c
    - ../Drivers/LwIP/src/core/init.c
    - ../Drivers/LwIP/src/core/ip.c
    - ../Drivers/LwIP/src/core/mem.c
    - ../Drivers/LwIP/src/core/memp.c
    - ../Drivers/LwIP/src/core/netif.c
    - ../Drivers/LwIP/src/core/pbuf.c
    - ../Drivers/LwIP/src/core/raw.c
    - ../Drivers/LwIP/src/core/stats.c
    - ../Drivers/LwIP/src/core/sys.c
    - ../Drivers/LwIP/src/core/tcp.c
    - ../Drivers/LwIP/src/core/tcp_in.c
    - ../Drivers/LwIP/src/core/tcp_out.c
    - ../Drivers/LwIP/src/core/timeouts.c
    - ../Drivers/LwIP/src/core/udp.c
    
    IPv4 支持（在 core/ipv4 子目录）：
    - ../Drivers/LwIP/src/core/ipv4/autoip.c
    - ../Drivers/LwIP/src/core/ipv4/dhcp.c
    - ../Drivers/LwIP/src/core/ipv4/etharp.c
    - ../Drivers/LwIP/src/core/ipv4/icmp.c
    - ../Drivers/LwIP/src/core/ipv4/igmp.c
    - ../Drivers/LwIP/src/core/ipv4/ip4.c
    - ../Drivers/LwIP/src/core/ipv4/ip4_addr.c
    - ../Drivers/LwIP/src/core/ipv4/ip4_frag.c

【3】Drivers/LwIP/api
    添加文件：
    - ../Drivers/LwIP/src/api/api_lib.c
    - ../Drivers/LwIP/src/api/api_msg.c
    - ../Drivers/LwIP/src/api/err.c
    - ../Drivers/LwIP/src/api/netbuf.c
    - ../Drivers/LwIP/src/api/netdb.c
    - ../Drivers/LwIP/src/api/netifapi.c
    - ../Drivers/LwIP/src/api/sockets.c
    - ../Drivers/LwIP/src/api/tcpip.c

【4】Drivers/LwIP/netif
    添加文件：
    - ../Drivers/LwIP/src/netif/ethernetif.c

【5】Drivers/LwIP/port
    添加文件：
    - ../Drivers/LwIP/port/sys_arch.c

【6】App
    添加文件：
    - ../App/tcp_server.c
    - ../App/tcp_client.c
    - ../App/uart_trans.c
    - ../App/config.c
    - ../App/flash_param.c

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三、预处理器宏定义 (Preprocessor Defines)
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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

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四、编译优化设置
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建议设置：
- Optimization: Level 2 (-O2)
- 勾选 "One ELF Section per Function"
- Warning Level: All Warnings

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五、目标内存配置
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确认 ROM 和 RAM 配置正确：
- IROM1: 0x08000000, Size: 0x10000 (64KB)
- IRAM1: 0x20000000, Size: 0x5000 (20KB)

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六、编译验证
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配置完成后：
1. 按 F7 编译整个工程
2. 检查是否有编译错误
3. 常见问题：
   - "file not found" -> 检查包含路径
   - "undefined reference" -> 检查是否添加了所有源文件
   - 链接错误 -> 检查 ROM/RAM 大小配置

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七、烧录配置
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Debug 选项卡：
- 选择正确的调试器（ST-Link/J-Link）
- 勾选 "Reset and Run"

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

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快速添加方法（可选）
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如果源文件太多手动添加麻烦，可以：

1. 在 Keil 中右键分组 -> Add Existing Files
2. 选择 "All Files (*.*)" 
3. 导航到对应目录
4. 按住 Ctrl 多选所有 .c 文件
5. 点击 Add

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文件结构参考
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TCP2UART/
├── App/
│   ├── tcp_server.c/h
│   ├── tcp_client.c/h
│   ├── uart_trans.c/h
│   ├── config.c/h
│   └── flash_param.c/h
├── Core/
│   ├── Inc/
│   └── Src/
├── Drivers/
│   ├── CH390/
│   │   ├── CH390.c/h
│   │   └── CH390_Interface.c/h
│   ├── LwIP/
│   │   ├── port/
│   │   │   └── sys_arch.c
│   │   └── src/
│   │       ├── api/
│   │       ├── core/
│   │       │   └── ipv4/
│   │       ├── include/
│   │       │   ├── arch/
│   │       │   │   ├── cc.h
│   │       │   │   ├── lwipopts.h
│   │       │   │   └── sys_arch.h
│   │       │   ├── lwip/
│   │       │   └── netif/
│   │       └── netif/
│   │           └── ethernetif.c/h
│   └── STM32F1xx_HAL_Driver/
├── MDK-ARM/
│   └── TCP2UART.uvprojx
└── Middlewares/
    └── Third_Party/FreeRTOS/

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