atk-dl32-mcp

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MCP server and Python driver for the ALIENTEK ATK-DL32 USB logic analyzer. It works without ATK-Logic: it talks to the device directly through a reverse-engineered USB protocol and decodes protocols offline with sigrok. An AI assistant such as Claude can capture, measure and decode signals.

Features

• Capture all 16 channels (D0-D15) in stream mode at 1-100 MHz (verified)

• Selectable input threshold (1.8 V / 3.3 V / 5 V logic)

• Per-channel activity summary: edge count, high %, min/max pulse width

• Measure frequency, period, duty cycle and pulse-width statistics

• Decode any sigrok protocol (UART, I2C, SPI, CAN, 1-Wire, WS281x and more), including stacked decoders

• Fast built-in UART 8N1 decoder

• Captures are saved as .sr files that open in PulseView

Related MCP server: logic-analyzer-mcp

Tools

Example prompts

• "Capture 0.5 s at 10 MHz and tell me which channels are active"

• "Decode I2C with SCL on D1 and SDA on D0"

• "Measure the PWM frequency and duty cycle on D3"

• "Read the UART text on D0 at 115200 baud"

Requirements

• Windows only. The driver uses the Cypress cyusb3 driver (VID 04B4 / PID 6A6A), which is installed with ATK-Logic.

• Python 3.10+

• sigrok-cli for dl32_decode, dl32_list_decoders and dl32_decoder_help

• Close ATK-Logic before use: only one program can own the USB device.

Install

pip install -r requirements.txt

Run

python dl32_mcp.py

Environment variables:

Captures are saved to ./captures.

Claude Code / Claude Desktop config

{
  "mcpServers": {
    "dl32": {
      "command": "python",
      "args": ["C:/path/to/dl32_mcp.py"]
    }
  }
}

Command-line tool

python dl32cap.py info

python dl32cap.py capture --rate 10M --time 0.2 --uart 0:115200 --save cap.npz

Project layout

Disclaimer

This is an unofficial project and is not affiliated with ALIENTEK. The protocol was worked out for interoperability; use at your own risk.

License

MIT. See LICENSE.