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SKILL verified MIT Self-run

Jlink

skill-zhinkgit-embeddedskills-jlink · by zhinkgit

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Install

$ agentstack add skill-zhinkgit-embeddedskills-jlink

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • Prompt-injection patterns
  • Secret / credential exfiltration
  • Dangerous shell & filesystem operations
  • Untrusted network calls
  • Known-malicious package signatures

What it can access

  • Network access No
  • Filesystem access No
  • Shell / process execution No
  • Environment & secrets No
  • Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

Security review passed
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1mo ago

Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

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About

J-Link 下载与在线调试

本 skill 提供 J-Link 探针的设备探测、固件烧录、内存读写、寄存器查看、目标复位、RTT 日志读取,以及轻量在线调试和 GDB 源码级调试能力。

配置

环境级配置(skill/config.json)

skill 目录下的 config.json 包含环境级配置(工具路径、端口号等),首次使用前确认 exe 路径正确:

{
  "exe": "C:\\Program Files\\SEGGER\\JLink\\JLink.exe",
  "gdbserver_exe": "C:\\Program Files\\SEGGER\\JLink\\JLinkGDBServerCL.exe",
  "rtt_exe": "C:\\Program Files\\SEGGER\\JLink\\JLinkRTTClient.exe",
  "gdb_exe": "C:\\Program Files\\Arm\\GNU Toolchain mingw-w64-x86_64-arm-none-eabi\\bin\\arm-none-eabi-gdb.exe",
  "serial_no": "",
  "rtt_telnet_port": 0,
  "swo_command": [],
  "operation_mode": 1
}
  • exe:JLink.exe 完整路径(必填)
  • gdbserver_exe:JLinkGDBServerCL.exe 路径,RTT 和 GDB 调试需要
  • rtt_exe:JLinkRTTClient.exe 路径
  • gdb_exe:arm-none-eabi-gdb 路径,GDB 源码级调试需要
  • serial_no:默认探针序列号,多探针场景下使用
  • rtt_telnet_port:RTT 端口,0 表示使用工具默认值
  • swo_command:可选,完整 SWO viewer 命令数组,供 jlink_swo.py 包装
  • operation_mode1 直接执行 / 2 输出风险摘要但不阻塞 / 3 执行前确认

工程级配置(.embeddedskills/config.json)

设备参数(device/interface/speed)统一在工作区的 .embeddedskills/config.json 中管理:

{
  "jlink": {
    "device": "STM32F407VG",
    "interface": "SWD",
    "speed": "4000"
  }
}
  • device:芯片型号(如 STM32F407VG、GD32F470ZG)
  • interface:调试接口,SWD 或 JTAG,默认 SWD
  • speed:调试速率 kHz,默认 4000

参数解析优先级:CLI 显式参数 > .embeddedskills/config.json(工程级)> skill/config.json(环境级)> .embeddedskills/state.json > 默认值/报错

成功执行后,确认过的 device/interface/speed 会自动写回工程配置。

子命令

基础操作

| 子命令 | 用途 | 风险 | |--------|------|------| | info | 探测探针与目标连通性 | 低 | | flash | 烧录固件(.hex / .bin / .elf) | 高 | | read-mem | 读取内存区域 | 低 | | write-mem | 写入内存 | 高 | | regs | 查看 CPU 寄存器 | 低 | | reset | 复位目标芯片 | 高 | | rtt | 读取 RTT 日志输出 | 低 | | swo | 包装外部 SWO viewer 为统一事件流 | 低 |

在线调试(JLink Commander)

| 子命令 | 用途 | 风险 | |--------|------|------| | halt | 暂停 CPU,返回寄存器状态 | 低 | | go | 恢复 CPU 运行 | 低 | | step | 单步执行(支持指定步数),返回执行的指令和寄存器 | 低 | | run-to | 设置断点并运行,等待命中后返回状态 | 低 |

GDB 源码级调试

| 子命令 | 用途 | 依赖 | |--------|------|------| | gdb backtrace/locals | 查看调用栈和局部变量 | arm-none-eabi-gdb | | gdb break/continue/next/step/finish/until | one-shot 控制执行流 | arm-none-eabi-gdb | | gdb frame/print/watch/disassemble/threads/crash-report | one-shot 源码级诊断 | arm-none-eabi-gdb |

执行流程

  1. 读取 skill/config.json,确认 exe 路径有效
  2. 读取 .embeddedskills/config.json 获取工程级配置(device/interface/speed)
  3. 读取 .embeddedskills/state.json 获取历史状态
  4. 参数解析优先级:CLI 显式参数 > .embeddedskills/config.json(工程级)> skill/config.json(环境级)> .embeddedskills/state.json > 默认值/报错
  5. 若当前动作需要 device 且仍为空,直接要求用户补充,绝不猜测
  6. 多探针场景未指定 serial_no 时,列出探针让用户选择,不自动选择
  7. operation_mode 决定是否需要确认后执行
  8. 使用模板生成临时 .jlink 命令文件,调用 JLink.exe 时带 -NoGui 1 -ExitOnError 1 -AutoConnect 1
  9. 解析输出和返回码,返回结构化结果
  10. 成功执行后,将确认过的 device/interface/speed 写回 .embeddedskills/config.json

脚本调用

skill 目录下有四个 Python 脚本,使用标准库实现,无额外依赖。

jlink_exec.py — 基础操作 + 轻量调试

# 探测连通性
python /scripts/jlink_exec.py info --device GD32F470ZG --json

# 烧录固件
python /scripts/jlink_exec.py flash --file build/app.hex --device GD32F470ZG --json

# 烧录 .bin(必须提供地址)
python /scripts/jlink_exec.py flash --file build/app.bin --device GD32F470ZG --address 0x08000000 --json

# 读取内存
python /scripts/jlink_exec.py read-mem --address 0x08000000 --length 256 --device GD32F470ZG --json

# 写入内存
python /scripts/jlink_exec.py write-mem --address 0x20000000 --value 0x12345678 --device GD32F470ZG --json

# 查看寄存器
python /scripts/jlink_exec.py regs --device GD32F470ZG --json

# 复位目标
python /scripts/jlink_exec.py reset --device GD32F470ZG --json

# 暂停 CPU
python /scripts/jlink_exec.py halt --device GD32F470ZG --json

# 恢复运行
python /scripts/jlink_exec.py go --device GD32F470ZG --json

# 单步执行(3 步)
python /scripts/jlink_exec.py step --device GD32F470ZG --count 3 --json

# 运行到断点地址
python /scripts/jlink_exec.py run-to --device GD32F470ZG --address 0x08001234 --timeout-ms 3000 --json

通用可选参数:--interface SWD|JTAG--speed 4000--serial-no --exe

jlink_rtt.py — RTT 日志读取

python /scripts/jlink_rtt.py --device GD32F470ZG --json

可选参数:--serial-no--channel--encoding--rtt-port--gdbserver-exe --rtt-exe

RTT 工作原理:脚本先通过 JLinkGDBServerCL.exe 建立调试连接,再启动 JLinkRTTClient.exe 读取 RTT 数据。--json 模式输出 JSON Lines。

jlink_swo.py — SWO 事件流包装

# 使用 config.json 里的 swo_command
python /scripts/jlink_swo.py --json

# 或显式传入 viewer 命令
python /scripts/jlink_swo.py \
  --viewer-cmd JLinkSWOViewerCL.exe -device GD32F470ZG -itf SWD -speed 4000 \
  --json

jlink_swo.py 不直接实现 SWO 协议,而是把外部 viewer 的 stdout/stderr 统一包装成 JSON Lines,便于上层 workflow 或 AI 继续消费。

jlink_gdb.py — GDB 源码级调试(需要 arm-none-eabi-gdb)

# 执行自定义 GDB 命令序列
python /scripts/jlink_gdb.py run \
  --gdbserver-exe  --gdb-exe  \
  --device GD32F470ZG --elf build/app.elf \
  --commands "break main" "continue" "backtrace" "info locals" --json

# 快捷:获取调用栈
python /scripts/jlink_gdb.py backtrace \
  --gdbserver-exe  --gdb-exe  \
  --device GD32F470ZG --elf build/app.elf --json

# 快捷:查看局部变量
python /scripts/jlink_gdb.py locals \
  --gdbserver-exe  --gdb-exe  \
  --device GD32F470ZG --elf build/app.elf --json

GDB 调试需要 ELF 文件才能进行源码级调试(断点到函数名、查看变量)。没有 ELF 时仍可使用地址级调试。

输出格式

所有脚本以 JSON 格式返回,基础字段为 status(ok/error)、actionsummarydetails,并可能附带 contextartifactsmetricsstatenext_actionstiming。流式观测命令使用 JSON Lines,并统一输出 sourcechannel_typestream_type

成功示例:

{
  "status": "ok",
  "action": "halt",
  "summary": "已暂停,PC=0x08049ABC",
  "details": {
    "device": "GD32F470ZG",
    "registers": { "PC": "0x08049ABC", "R0": "0x00000004", "..." : "..." }
  }
}

step 示例(包含执行的指令):

{
  "status": "ok",
  "action": "step",
  "summary": "单步3次,PC=0x08049AB4",
  "details": {
    "steps": [
      { "address": "0x08049AB8", "opcode": "80 1B", "instruction": "SUBS R0, R0, R6" },
      { "address": "0x08049ABA", "opcode": "A8 42", "instruction": "CMP R0, R5" },
      { "address": "0x08049ABC", "opcode": "FA D3", "instruction": "BCC #-0x0C" }
    ],
    "registers": { "PC": "0x08049AB4", "..." : "..." }
  }
}

run-to 示例(断点命中):

{
  "status": "ok",
  "action": "run-to",
  "summary": "断点命中 @ 0x08049AB4,PC=0x08049AB4",
  "details": {
    "bp_address": "0x08049AB4",
    "bp_hit": true,
    "registers": { "PC": "0x08049AB4", "..." : "..." }
  }
}

核心规则

  • 不自动猜测 device 芯片型号,缺失时必须询问用户
  • 多探针场景不自动选择探针,必须让用户指定序列号
  • 参数解析优先级为:CLI 显式参数 > .embeddedskills/config.json(工程级)> skill/config.json(环境级)> .embeddedskills/state.json > 默认值/报错
  • .bin 文件必须显式提供烧录地址,缺失时报错
  • 连接失败时给出排查建议(检查连线、供电、接口类型、速度),不自动尝试更激进参数
  • 烧录、写内存、复位在参数完整且用户意图明确时直接执行
  • run-to 的断点在单次 JLink 会话内完成设置和清除,不存在跨会话 handle 问题
  • 结果回显中始终包含目标芯片、接口类型和执行动作
  • 产物路径(elf/file)不进入工程配置,仍只依赖 state.json
  • last_flash/last_debug 等运行状态继续写入 state.json

调试典型工作流

快速排查(JLink Commander)

halt → regs → read-mem → step → go

适合查看当前执行位置、寄存器状态、内存值,无需 ELF 和 GDB。

断点调试(JLink Commander)

run-to(address) → regs → read-mem → go

在指定地址设置断点并等待命中,查看此时的状态。

源码级调试(GDB)

gdb run --elf app.elf --commands "break main" "continue" "backtrace" "info locals"

需要 ELF 文件和 arm-none-eabi-gdb,支持函数名断点和变量查看。

参考

遇到芯片型号问题时可查阅 references/common_devices.md

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.