esp-idf-helper

Help develop, build, flash, and debug ESP32/ESP8266 firmware using Espressif ESP-IDF on Linux/WSL. Use when the user asks about ESP-IDF project setup, configuring targets, menuconfig, building, flashing via esptool/idf.py, serial monitor, partition tables, sdkconfig, troubleshooting build/flash/monitor errors, or automating common idf.py workflows from the command line.

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Install skill "esp-idf-helper" with this command: npx skills add 547895019/esp-idf-helper

esp-idf-helper

Goal

Provide a repeatable, command-line-first workflow for ESP-IDF development on Linux/WSL: configure → build → flash → monitor → debug/troubleshoot.

Quick start (typical loop)

Method 1: Activate ESP-IDF first (Recommended)

# 1) Source the ESP-IDF environment (once per terminal session)
cd /path/to/esp-idf
. ./export.sh

# 1.1) Enable ccache to speed up compilation (recommended)
export IDF_CCACHE_ENABLE=1

# 2) Go to your project and build
cd /path/to/your/project
idf.py set-target <target>    # Set target chip (once per project)
idf.py build                 # Compile
idf.py -p <PORT> -b <BAUD> flash  # Flash to device (optional)

Common commands

  • idf.py set-target <target> — Set chip target: esp32, esp32s2, esp32s3, esp32c3, esp32p4
  • idf.py menuconfig — Configure project settings (must run in a new terminal window)
  • idf.py build — Build the project
  • idf.py update-dependencies — Update project component dependencies
  • idf.py partition-table — Build partition table and print partition entries
  • idf.py partition-table-flash — Flash partition table to device
  • idf.py storage-flash — Flash storage filesystem partition
  • idf.py size — Show firmware size information
  • idf.py -p <PORT> -b <BAUD> flash — Flash firmware (default baud: 1152000)
  • idf.py -p <PORT> monitor — Open serial monitor
  • idf.py -p <PORT> -b <BAUD> monitor — Open serial monitor with specific baud (e.g. 1152000)
  • idf.py -p <PORT> -b <BAUD> flash monitor — Flash then monitor
  • bash {baseDir}/scripts/monitor_auto_attach.sh --project <PROJECT_DIR> --idf <IDF_DIR> --port <PORT> --baud <BAUD> — Auto attach serial (usbipd) and retry monitor on open failure
  • bash {baseDir}/scripts/flash_with_progress.sh --project <PROJECT_DIR> --idf <IDF_DIR> --port <PORT> --mode <MODE> — Flash with real-time progress output (supports auto usbipd attach retry, error summary, and second retry)

flash_with_progress 使用示例

# 普通烧录整个固件(带进度)
bash {baseDir}/scripts/flash_with_progress.sh \
  --project <PROJECT_DIR> \
  --idf <IDF_DIR> \
  --port <PORT> \
  --mode flash

# 加密烧录 app(带进度)
bash {baseDir}/scripts/flash_with_progress.sh \
  --project <PROJECT_DIR> \
  --idf <IDF_DIR> \
  --port <PORT> \
  --mode encrypted-app-flash

# 仅烧录分区表(带进度)
bash {baseDir}/scripts/flash_with_progress.sh \
  --project <PROJECT_DIR> \
  --idf <IDF_DIR> \
  --port <PORT> \
  --mode partition-table-flash

# 仅烧录文件系统分区(storage,带进度)
bash {baseDir}/scripts/flash_with_progress.sh \
  --project <PROJECT_DIR> \
  --idf <IDF_DIR> \
  --port <PORT> \
  --mode storage-flash

# 指定波特率并关闭自动串口映射重试
bash {baseDir}/scripts/flash_with_progress.sh \
  --project <PROJECT_DIR> \
  --idf <IDF_DIR> \
  --port <PORT> \
  --baud 460800 \
  --mode flash \
  --no-auto-attach

# 串口异常时自动二次重试(默认 retries=2,也可手动指定)
bash {baseDir}/scripts/flash_with_progress.sh \
  --project <PROJECT_DIR> \
  --idf <IDF_DIR> \
  --port <PORT> \
  --mode encrypted-app-flash \
  --retries 2
  • idf.py fullclean — Clean build directory

在新窗口打开 monitor(Windows + WSL2)

推荐用脚本方式,避免 PowerShell/cmd 引号和 UNC 路径问题。

在新窗口打开 menuconfig(必须)

menuconfig 是 TUI 交互界面,必须在新窗口打开(不要在非交互后台中运行)。

  1. 在 WSL 直接运行(你已在独立终端时):
bash {baseDir}/scripts/run_menuconfig.sh \
  --project <PROJECT_DIR> \
  --idf <IDF_DIR>
  1. 从 Windows PowerShell 拉起新窗口运行:
Start-Process powershell -ArgumentList '-NoExit','-Command','wsl.exe -d <DISTRO> --cd / -- bash {baseDir}/scripts/run_menuconfig.sh --project <PROJECT_DIR> --idf <IDF_DIR>'

打开串口失败时自动映射并重试

idf.py monitor 因串口打开失败(端口不存在/被占用)报错时,可自动执行 usbipd 串口映射脚本并重试一次:

bash {baseDir}/scripts/monitor_auto_attach.sh \
  --project <PROJECT_DIR> \
  --idf <IDF_DIR> \
  --port <PORT> \
  --baud <BAUD> \
  --keyword "ESP32"
  1. 在 WSL 创建启动脚本:
cat >/tmp/run_monitor.sh <<'EOF'
#!/usr/bin/env bash
set -e
cd /path/to/your/project
source /path/to/esp-idf/export.sh
exec idf.py -p <PORT> -b 1152000 monitor
EOF
chmod +x /tmp/run_monitor.sh
  1. 在 Windows PowerShell 新开窗口执行:
Start-Process cmd.exe -WorkingDirectory C:\ -ArgumentList '/k','wsl.exe -d <DISTRO> -- bash /tmp/run_monitor.sh'

说明:

  • 使用 cmd.exe -WorkingDirectory C:\ 可以避免 \\wsl.localhost\... UNC 路径导致工作目录掉到 C:\Windows
  • 退出 monitor:Ctrl+]

Workflow decision tree

  • If the user has no project yet → create from example/template; confirm target chip and IDF version.
  • If build fails → collect the first error lines; identify missing deps/toolchain/cmake/python packages; confirm IDF env.
  • If flash fails → confirm PORT permissions/WSL USB passthrough, baud rate, boot mode, correct chip target.
  • If monitor is gibberish → wrong baud (monitor uses app baud), wrong serial adapter settings, or wrong console encoding.
  • If boot loop / panic → request panic backtrace; decode with addr2line (or idf.py monitor built-in) and check partition/sdkconfig.
  • If [Errno 11] Could not exclusively lock port <PORT> → serial port is occupied by another process; force release it with:
    sudo fuser -k <PORT>
    

What to ask the user for (minimal)

  1. Chip target: e.g. esp32, esp32s2, esp32s3, esp32c3, esp32p4.
  2. ESP-IDF version + how it’s installed/activated (IDF Tools installer vs git clone; IDF_PATH / ESPIDF_ROOT).
  3. Project path + whether it’s an ESP-IDF project (has CMakeLists.txt, main/, sdkconfig).
  4. Serial port path: use <PORT> (e.g. /dev/ttyUSB0, /dev/ttyACM*, or WSL mapped /dev/ttyS*).
  5. Exact failing command + the first error block in output.

串口设备获取(Windows + WSL2)

先在 Windows PowerShell 找到串口号,再在 WSL2 里映射 USB 设备。

安装 usbipd-win(Windows,推荐)

管理员模式 PowerShell 中执行:

winget install dorssel.usbipd-win

然后查看并映射设备:

# Windows PowerShell:查看 USB 设备与 BUSID
usbipd list

# 将设备挂载到 WSL(每次重新插拔 USB 后都要重新执行)
usbipd attach --wsl --busid=<BUSID>

串口自动映射(推荐)

可直接使用脚本自动选择并挂载串口设备(优先选择 Connected 区域中的 serial 设备,且优先 STATE=Shared):

bash {baseDir}/scripts/usbipd_attach_serial.sh

常用参数:

# 指定 BUSID
bash {baseDir}/scripts/usbipd_attach_serial.sh --busid <BUSID>

# 指定发行版
bash {baseDir}/scripts/usbipd_attach_serial.sh --distro <DISTRO>

# 按关键词筛选设备(如 ESP32 / COMxx / CP210x)
bash {baseDir}/scripts/usbipd_attach_serial.sh --keyword "ESP32"

# 仅预览,不执行
bash {baseDir}/scripts/usbipd_attach_serial.sh --dry-run

说明:

  • 每次 USB 设备重新插拔后,BUSID 可能变化,需要重新 usbipd list 或重新运行自动映射脚本。
  • 重新插拔 USB 后,通常都要再执行一次 usbipd attach --wsl --busid=<BUSID>(脚本会自动执行)。
  • 在 WSL2 内可用 ls /dev/ttyUSB* /dev/ttyACM* 2>/dev/null 确认串口节点。

首次需要手动加载内核模块(WSL 2.3.11+)

在较新的 WSL 版本中,内核采用模块化设计,vhci_hcd(虚拟主机控制器接口)驱动可能不会自动加载。

在 WSL 终端执行:

sudo modprobe vhci_hcd

New Feature: Create ESP-IDF Projects

  • Description: Create a new ESP-IDF project or create a project from an example in the ESP Component Registry.
  • Usage:
    idf.py create-project <project_name> <project_path>
    idf.py create-project-from-example <example_name> <project_path>
    

Flash Encryption Support (加密烧录)

直接使用 idf.py 执行加密/非加密应用烧录:

# 加密烧录整个固件 (bootloader + partition table + app)
idf.py -p <PORT> encrypted-flash

# 加密烧录 app 分区
idf.py -p <PORT> encrypted-app-flash

# 非加密烧录 app 分区
idf.py -p <PORT> app-flash

# 非加密烧录整个固件 (bootloader + partition table + app)
idf.py -p <PORT> flash

Bundled resources

references/

  • references/esp-idf-cli.md — concise command patterns + what to paste back when reporting errors.
  • references/idf-py-help.txt — captured idf.py --help output for quick lookup/search.

To refresh the help text for your installed ESP-IDF version, run:

  • scripts/capture_idf_help.sh

assets/

Not used by default.

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