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J-Link RTT Viewer MCP

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J-Link RTT Viewer MCP Server

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English

An MCP (Model Context Protocol) server that wraps J-Link RTT Viewer functionality, enabling AI assistants to interact with STM32 development boards through a standardized interface.

What is MCP?

MCP is like a USB-C port for AI applications. It provides a standardized way for AI assistants (Claude, ChatGPT, etc.) to connect to external systems like J-Link debuggers.

Quick Start

1. Install

git clone https://github.com/MisakaMikoto128/J-Link-RTT-Viewer-MCP.git
cd J-Link-RTT-Viewer-MCP
pip install -r requirements.txt

2. Configure in Claude Desktop

Add to %APPDATA%\Claude\claude_desktop_config.json:

{
  "mcpServers": {
    "jlink-rtt": {
      "command": "python",
      "args": ["-m", "src.server"],
      "cwd": "C:\\path\\to\\J-Link-RTT-Viewer-MCP"
    }
  }
}

3. Restart Claude Desktop

4. Use natural language!

That's it! No code required. Just talk to Claude:

You: Connect to my STM32F103C8 board
Claude: [calls connect tool] Connected successfully!

You: Read the RTT logs
Claude: [calls read_rtt tool] Here are the logs...

You: Make the LED blink faster
Claude: [calls write_rtt tool with "freq 200"] Done!

You: Flash the new firmware
Claude: [calls flash_firmware tool] Firmware flashed successfully!

Available Tools

Tool

What it does

connect

Connect to J-Link and target MCU

disconnect

Disconnect from J-Link

read_rtt

Read RTT log data

write_rtt

Write data to RTT channel

set_rtt_channel

Set default RTT channel (0-15)

reset

Reset MCU (normal/auto_reconnect/halt)

get_device_info

Get connected device info

flash_firmware

Flash .hex or .bin firmware

read_memory

Read MCU memory

write_memory

Write MCU memory

start_log_recording

Record RTT to file

stop_log_recording

Stop recording

Test with MCP Inspector

npx @modelcontextprotocol/inspector python -m src.server

Supported Hardware

  • Debugger: SEGGER J-Link (V7, V8, V9, V10)

  • MCU: STM32F1xx, STM32F4xx, nRF52xxx

  • Interface: SWD, JTAG

Development

# Run tests
pytest tests/ -v

# Lint
ruff check src/

# Type check
mypy src/ --ignore-missing-imports

License

MIT License

Related MCP server: dbgprobe-mcp-server

中文

一个封装 J-Link RTT Viewer 功能的 MCP 服务器，使 AI 助手能够通过标准化接口与 STM32 开发板进行交互。

什么是 MCP？

MCP 就像 AI 应用的 USB-C 接口。它为 AI 助手（Claude、ChatGPT 等）提供了一种标准化的方式来连接外部系统，如 J-Link 调试器。

快速开始

1. 安装

git clone https://github.com/MisakaMikoto128/J-Link-RTT-Viewer-MCP.git
cd J-Link-RTT-Viewer-MCP
pip install -r requirements.txt

2. 在 Claude Desktop 中配置

添加到 %APPDATA%\Claude\claude_desktop_config.json:

{
  "mcpServers": {
    "jlink-rtt": {
      "command": "python",
      "args": ["-m", "src.server"],
      "cwd": "C:\\path\\to\\J-Link-RTT-Viewer-MCP"
    }
  }
}

3. 重启 Claude Desktop

4. 用自然语言对话！

就这样！不需要写代码。直接和 Claude 对话：

你: 连接到我的 STM32F103C8 开发板
Claude: [调用 connect 工具] 连接成功！

你: 读取 RTT 日志
Claude: [调用 read_rtt 工具] 这是日志数据...

你: 让 LED 闪烁更快
Claude: [调用 write_rtt 工具，参数 "freq 200"] 完成！

你: 烧录新固件
Claude: [调用 flash_firmware 工具] 固件烧录成功！

可用工具

工具

功能

connect

连接 J-Link 和目标 MCU

disconnect

断开 J-Link 连接

read_rtt

读取 RTT 日志数据

write_rtt

向 RTT 通道写入数据

set_rtt_channel

设置默认 RTT 通道 (0-15)

reset

重置 MCU (normal/auto_reconnect/halt)

get_device_info

获取已连接设备信息

flash_firmware

烧录 .hex 或 .bin 固件

read_memory

读取 MCU 内存

write_memory

写入 MCU 内存

start_log_recording

录制 RTT 到文件

stop_log_recording

停止录制

使用 MCP Inspector 测试

npx @modelcontextprotocol/inspector python -m src.server

支持的硬件

  • 调试器: SEGGER J-Link (V7, V8, V9, V10)

  • MCU: STM32F1xx, STM32F4xx, nRF52xxx

  • 接口: SWD, JTAG

开发

# 运行测试
pytest tests/ -v

# 代码检查
ruff check src/

# 类型检查
mypy src/ --ignore-missing-imports

许可证

MIT 许可证

Install Server
A
license - permissive license
A
quality
B
maintenance

How are these scores calculated?

Maintenance

–Maintainers
–Response time
–Release cycle
–Releases (12mo)
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